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COMPREHENSIVE COASTAL INVENTORY PROGRAM FINAL REPORT t, VOLUME II 4 Coastal Inventory Program Commonwealth of Virginia and Tidal Rivers Inventory Project Coastal Resource Management Program -Grant No. NA89AA-D-CZ134 Task 2A Grant No. NA88AA-D-CZ091 COASTAL ZONE Compiled by INFORMATION CENTER Marcia R. Berman J. Berchman Smithson Under the Direction of Dr. Suzette M. Kimball Dr. Carl H. Hershner, Jr. Virginia Institute of Marine Science College of William and Mary Gloucester Point, Virginia 23062 GC ~T1018 Submitted To 1018 .C66 . 9 C66 Virginia Council on the Environment 1991 * v ~.2 ;Richmond, Virginia ,.D 3roperty of CSC LibraLj / COMPREHENSIVE COASTAL INVENTORY PROGRAM FINAL REPORT VOLUME II Coastal Inventory Program Commonwealth of Virginia and Tidal Rivers Inventory Project Coastal Resource Management Program Grant No. NA89AA-D-CZ134 Task 2A Grant No. NA88AA-D-CZ091 U S DEPARTMENT OF COMMERCE NOAA Compiled by COASTAL SERVICES CENTER 2234 SOUTH HOBSON AVENUE Marcia R. Berman CHARLESTON, SC 29405-2413J. Berchman Smithson Under the Direction of Dr. Suzette M. Kimball Dr. Carl H. Hershner! Jr. Virginia Institute of Marine Science College of William and Mary Gloucester Point, Virginia 23062 Submitted To Virginia Council on the Environment Richmond, Virginia 0 I I I I I TABLE OF CONTENTS VOLUME I. ACKNOWLEDGEMENTS S.. EXECUTIVE SUMMARY . ii CHAPTER PAGE 1. INTRODUCTION ...................................... 1 2. VIMS SHORELINE COVERAGE ........................... 6 3. VMRC SHORELINE COVERAGE ........................... 60 4. MAPPING SCALES .................................... 136 5. VIDEO COVERAGE .................................... 144 6. AERIAL IMAGERY .................................... 145 7. FLIGHT LINE COVERAGE .............................. 162 VOLUME II. 8. 1989 SHORELINE COVERAGE .1 9. SHORELINE STABILIZATION COVERAGE .................. 8 10. SEDIMENT SAMPLE COVERAGE .......................... 21 11. TIDAL MARSH INVENTORY COVERAGE .................... 69 12. LEFT/RIGHT BANK COVERAGE .......................... 108 13. RIVER REACH INFORMATION COVERAGE .................. 111 14. PROCEDURE FOR ANALYZING THE HISTORICAL CHANGE IN SHORELINE POSITIONS ............................... 143 15. PROCEDURE FOR ANAYZING THE EFFECTS OF LANDUSE ON VEGETATED WETLANDS ................................ 146 16. PROCEDURE FOR ANALYZING THE SPATIAL AND TEMPORAL CHANGES IN WETLAND SPECIES ........................ 161 APPENDIX I ............................................. 167 APPENDIX II ............................................ 172 LIST OF FIGURES FIGURE PAGE 1. Virginia Marine Resources Commission Shoreline Map Index ........................61 LIST OF TABLES TABLE PAGE 1. Shoreline Stabilization Structures, Westmoreland County - L6452540 ................................... 12 2. Shoreline Stabilization Structures, Westmoreland County - R6452540 .................................... 13 3. Shoreline Stabilization Structures, Westmoreland County - L6302560 .................................... 15 4. Shoreline Stabilization Structures, Westmoreland County - L6602540 .................................... 17 5. Shoreline Stabilization Structures, Westmoreland County - L6602520 .................................... 19 6. Shoreline Stabilization Structures, Westmoreland County - R6602520 .................................... 20 7a. Sediment Survey Data - Grain Size Percentages Westmoreland County - Foreshore ...................... 46 7b. Sediment Survey Data - Grain Size Statistics Westmoreland County - Foreshore ...................... 48 8a. Sediment Survey Data - Grain Size Percentages Westmoreland County - Backshore ...................... 50 8b. Sediment Survey Data - Grain Size Statistics Westmoreland County Backshore ...................... 53 9. Westmoreland County Foreshore Slope Inventory ........ 54 10a. Sediment Survey Data - Grain Size Percentages Lancaster County - Foreshore ......................... 56 10b. Sediment Survey Data - Grain Size Statistics Lancaster County - Foreshore ......................... 57 Ila. Sediment Survey Data - Grain Size Percentages Lancaster County - Backshore ......................... 59 l1b. Sediment Survey Data - Grain Size Statistics Lancaster County - Backshore ......................... 60 12. Lancaster County Foreshore Slope Inventory ........... 62 LIST OF TABLES (continued) TABLE PAGE 13a. Sediment Survey Data - Grain Size Percentages Richmond County - Foreshore ......................... 63 13b. Sediment Survey Data - Grain Size Statistics Richmond County - Foreshore ......................... 64 14a. Sediment Survey Data - Grain Size Percentages Richmond County - Backshore ..........................65 14b. Sediment Survey Data - Grain Size Statistics Richmond County - Backshore ......................... 66 15. Richmond County Foreshore Slope Inventory ........... 67 16. Northumberland County Foreshore Slope Inventory ..... 68 APPENDICES APPENDIX PACE 1. Completed Topographic Coverages ..........167 2. High Resolution Shoreline Coverages ........172 CHAPTER VIII. 1989 SHORELINE COVERAGE VIII. 1989 SHORELINE COVERAGE The 1989 vertical photographs collected by VIMS (ref. Chapter 6) were used to establish the 1989 shoreline position. Registration of the photographs against known benchmarks was necessary before mapping could begin. The VMRC shoreline maps (ref. Chapter 3) are registered through an extensive set of surveyed benchmarks, each identified by a state plane coordinate pair. These benchmarks are shown on the map. However, this set of maps does not contain surveyed locations of physical parameters, such as a house or road intersection, that can be identified on photographs. The photographs do not show benchmark markers. Consequently, the photographs could not be mapped directly onto the VMRC shoreline base. The benchmarks used by the VMRC were relocated in the field with the assistance of VMRC staff. They were used to establish base reference points for all subsequent field work, which included surveying the locations of physical features that could be identified in the photographs. With both the aerial imagery and the shoreline maps keyed to the state plane coordinate system, overlays of the two shoreline positions could be made. Field efforts were concentrated along a portion of the Potomac River and the eastern shore of Lower Machodoc Creek in Westmoreland County. A Topcon GTS-3B infrared digital survey instrument was used for field surveys. State plane coordinate pairs for each surveyed feature were subsequently entered into the ARCInfoe format and stored as a GIS coverage. The field surveying, although extremely accurate (error <.02% over a 12-mile reach), was labor-intensive and prohibitively expensive. It was determined that field surveying of the 5,000 miles of coastline to be included eventually in the database was not feasible given the time and cost constraints dictated by the program scope of work. Consequently, other methods of annotating photographic benchmarks were investigated. The method showing the greatest potential in terms of accuracy (positioning to within 1.5 m), time and cost is a Global Positioning System (CPS). Acquisition of such a system is planned for 1990-1991 and all subsequent surveying activity will be with GPS technology. Once photographic benchmarks were established, a Bausch & Lomb ZT4-H Zoom Transfer Scope (ZTS) was used to superimpose the 1989 shoreline image onto the 1976 baseline for transcription. State plane coordinate values of the photographic control points previously entered into the database were merged with the VMRC shoreline data coverage and plotted at 1:7,200. Because the images are scaled at 1:7,200, this becomes the highest usable resolution, despite the 1:5,000 scale of the VMRC maps. The ZTS uses a system of mirrors and lenses to transfer one image onto another. With a minimum of two control points in each field of view (three points are preferable, and more were used in complex areas), the photographic control points on the prints are adjusted and aligned with the plotted points on the baseline maps. During this process, image distortion due to linear stretch and rotation can be diminished or removed. The position of the shoreline is transcribed by a staff member who distinguishes tonal changes on the image that are due to variations in the water content of the foreshore sediments. The transcribed map line width is 0.3 mm which is equivalent to 1.5 m ground distance at a scale of 1:7,200. Thus, the functional precision of'the transcribed shoreline position is +/- 1.5 m. Once transcribed, the shoreline position is digitized in the same manner as the 1976 baseline and stored as a data layer. The VMRC shoreline maps are referenced to mean low water. As it exists, the 1989 shoreline position is not tide-corrected. However, each photograph is documented in terms of the flight date and time in order to complete tide-stage corrections. Work is continuing on the development of algorithms to automatically correct the shoreline position. 2 COASTAL INVENTORY AVERAGE TIME AND DISC SPACE USED* 1989 VIMS SHORELINE MAP I TIME DISC NUMBER I SPACE II 6152560 I .75 135168 6302560 I .5 137216 6452540 I 2.5 30720 6602520 I 2.75 147456 6602540 1 .75 30720 AVERAGE I 1.45 I 96256 *TIME IN HOURS, DISC SPACE IN BYTES 3 lo~w w VIMS SHORELINE COMPARISON STUDY Westmoreland County e'V 1976 VMRC Shoreline 4%1989 VIMS Shoreline PO TOWAC RI Vtp 01,1 e ieee~tor 1 w w w w W w w VIMS SHORELINE COMPARISON STUDY Westmoreland County /$V 1976 VMRC Shoreline ,// 1989 VIMS Shoreline 4oo -~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1600�k VIMS SHORELINE COMPARISON STUDY Westmoreland County 4/$' 1976 VMRC Shoreline A-d/ 1989 VIMS Shoreline 0 S\ 5a0 1000 IM lw M r o r NWwwww VIMS SHORELINE COMPARISON STUDY ,4~~~~~~ \ ~Westmoreland County 4? 1976 VMRC Shoreline AX 1989 VIMS Shoreline I I CHAPTER IX. SHORELINE STABILIZATION COVERAGE I I - I I I 0 I I IX. SHORE STABILIZATION STRUCTURES The Shore Stabilization Coverage (STRUC) is the longshore delineation of man-made mitigation structures along the coast. A portion of Westmoreland County has been completed and the folio is presented here at a scale of 1:20,000. The coverage is limited to riprap, bulkheads, groin fields and jettys which can be easily identified from the vertical images. Delineations were performed using geographically registered vertical photographs (ref. Chapter 3) and scaled plots of the MRC shoreline record. A Zoom Transfer Scope was used to transpose the vertical image onto the computer generated plots of the 1976 shoreline position at a scale of 1:7200 (photo scale). The digital coverage is created by digitizing and coding the linear extent of the shoreline defended by each of the considered mitigation structures. Combinations of engineering structures were also coded separately. The total length of a shoreline reach artificially protected can then be computed. This information is important for assessing the effectiveness of mitigation structures in halting shore erosion, as well as quantifying the volume of sediment lost to the littoral system as a result of the defense. The following documentation contains information pertaining to the STRUC coverage. GEOGRAPHIC DATA SET DESCRIPTION VIMS GIS Lab Prefix STRUCT Data Layer Name SHORE STABILIZATION COVERAGE Description A COVERAGE OF SHORELINE STRUCTURES INCLUDING RIP RAP. BULKHEADS. GROINS AND JETTYS. Year(s) Collected 1989 Base Maps used for Digitizing VMRC SHORELINE MAPS Digitizing Scale 1:7200 Geographic Extent PORTION OF WESTMORELAND COUNTY How Collected (Describe): THE 1989 VERTICAL PHOTOGRAPHS WERE SUPERIMPOSED ON TO THE VMRC SHORELINE MAPS USING A ZOOM TRANSFER SCOPE (ZTS). THE POSITION OF STRUCTURES WERE DELINEATED AND THEN DIGITIZED. Actual/Intended Use or Purpose: TO OUANTITATIVELY ASSES THE AMOUNT OF SHORELINE DEFENDED BY ARTIFICIAL STABILIZATION METHODS. COASTAL INVENTORY AVERAGE TIME AND DISC SPACE USED* 1989 SHORELINE STRUCTURES MAP TIME DISC NUMBER SPACE 6152560 1.25 135168 6302560 .75 141312 6452540 2.5 278528 6602520 2.75 397312 6602540 1.0 145408 AVERAGE I 1.65 I 219545 *TIME IN HOURS, DISC SPACE IN BYTES 10 VIMS SHORELINE STRUCTURE STUDY Wesfmoreland County MAP NO. 6452540 BUU(HEAD JETTY GROIN GROIN/BULKHEAD -- GROIN/MU.KHEAD/RIPRAP GROIN/RPRAP BREAKWATER SHOIWIACE DISCONNECTED ee BULKHEAD/RMRAP - NO STRUCTURES NOTED 500 16 -0 C~C 0~~~~~~~~~~ TABLE 1. SHORELINE STABILIZATION STRUCTURES WESTMORELAND COUNTY - L6452540 Structure Code Total Length (m) Frequency* ................................................................. Riprap 1 339.03 5 Bulkhead 2 59.63 1 jetty 3 ------ 0 groin field 4 351.90 3 breakwater (off) 8 67.20 1 groin/bulk. 9 1212.37 5 groin/rip. 10 130.95 3 gr/bulk/rip. 11 ------ 0 bulk/rip. 13 1009.60 1 no structures 22 5975.46 10 * Frequency = number of arcs Total number of arcs = 29 Total shoreline length = 9,146.14 meters 12 TABLE 2. SHORELINE STABILIZATION STRUCTURES WESTMORELAND COUNTY - R6452540 Structure Code Total Length (m) Frequency* Riprap 1 267.24 5 Bulkhead 2 --- 0 jetty 3 221.24 2 groin field 4 25.82 1 breakwater (off) 8 ------ 0 groin/bulk. 9 75.31 1 groin/rip. 10 ------ 0 gr/bulk/rip. 11 ------ 0 bulk/rip. 13 ------ 0 no structures 22 2392.07 8 * Frequency = number of arcs Total number of arcs = 17 Total shoreline length = 2,981.68 meters 13 w ~~~~~~~IW w w w N W w VIMS SHORELINE STRUCTURE STUDY Westmoreland County MAP NO. 6302550 ..ORAP BtMKHEAD JETTY " GROIN - GRON/BULEAD -- GRON/BULQlEAD/RF1AP G1MO1G/RIPRAP XO - BAKWATER SHOREFACE DISCOWECTED :- BtLKHEAD/RIPRAP ci - NO STRIUCTURES NOTED 'IX So tere TABLE 3. SHORELINE STABILIZATION STRUCTURES WESTMORELAND COUNTY - L6302560 Structure Code Total Length (m) Frequency* Riprap 1 1117.56 5 Bulkhead 2 ------ 0 jetty 3 ------ 0 groin field 4 353.69 4 breakwater (off) 8 ------ 0 groin/bulk. 9 2040.62 7 groin/rip. 10 181.65 2 gr/bulk/rip. 11 ------ 0 bulk/rip. 13 ------ 0 no structures 22 1647.29 4 * Frequency = number of arcs Total number of arcs = 22 Total shoreline length = 5,340.81 meters 15 VIMS SHORELINE STRUCTURE STUDY Westmoreland County MAP NO. 6602540 .... R.PRAP :. BUJ(FEAD JETTY GRON - GRON/LHEAD -- GRON/BWJHEAD/WPRAP GROJ/RPIRAP BREAKWATER SHOREFACE DISCONNECTED _ 8UJlIMAD/RWRAP NO STRUCTURES NOTED a ~~~~see loan TABLE 4. SHORELINE STABILIZATION STRUCTURES WESTMORELAND COUNTY - L6602540 Structure Code Total Length (m) Frequency* _________________________________________________________________ Riprap 1 13.3 1 Bulkhead 2 638.31 7 jetty 3 60.53 3 groin field 4 858.21 11 breakwater (off) 8 ------ 0 groin/bulk. 9 620.71 7 groin/rip. 10 ------ 0 gr/bulk/rip. 11 ------ 0 bulk/rip. 13 ------ 0 no structures 22 2063.61 13 * Frequency = number of arcs Total number of arcs = 42 Total shoreline length = 4,254.67 meters 17 lw lw 1w qw ww VIMS SHORELINE STRUCTURE STUDY Westmoreland County .R..RAP MAP NO. 6602520 B1.WAD GROIN - GRO�/BIHEADI -- GRO#N1/BW(HEAD/RPRAP ,LII0 GRON/RFRAP - BREAKWATER SHOREFACE DISCONNECTED '' BWHfAD/RRAP NO STRJCTURES NOTED C,,~~~C eote r e TABLE 5. SHORELINE STABILIZATION STRUCTURES WESTMORELAND COUNTY - L6602520 Structure Code Total Length (m) Frequency* Riprap 1 986.85 8 Bulkhead 2 ------ 0 jetty 3 88.97 2 groin field 4 179.05 2 breakwater (off) 8 ------ 0 groin/bulk. 9 ------ 0 groin/rip. 10 121.00 1 gr/bulk/rip. 11 ------ 0 bulk/rip. 13 ------ 0 no structures 22 13,902.72 20 * Frequency = number of arcs Total number of arcs = 33 Total shoreline length = 15,278.59 meters 19 TABLE 6. SHORELINE STABILIZATION STRUCTURES WESTMORELAND COUNTY - R6602520 Structure Code Total Length (m) Frequency* _________________________________________________________________ Riprap 1 952.09 12 Bulkhead 2 564.52 5 jetty 3 -- 0 groin field 4 419.58 6 breakwater (off) 8 ------ 0 groin/bulk. 9 1688.75 10 groin/rip. 10 81.27 2 gr/bulk/rip. 11 23.81 1 bulk/rip. 13 ------ 0 no structures 22 3395.97 19 * Frequency = number of arcs Total number of arcs = 49 Total shoreline length= 7125.99 meters 20 0 0 0 CHAPTER X. SEDIMENT SAMPLE COVERAGE I I X. SEDIMENT SAMPLE COVERAGE A sediment/slope data coverage (SED) has been incorporated into the GIS network at VIMS. Sediment size data and shoreface slope measurements are necessary to forecast potential storm surge incursion and erosion rates as well as to provide a data base from which to manage the Commonwealth's sand allocation procedures through the Shoreline Programs Bureau of the Department of Conservation and Recreation. Sediment samples and beach slope measurements have been collected from the backshore and foreshore beach units at 500 meter intervals along the tidal shorelines , or wherever there is a significant change in sediment size or beach slope. Beach slope was measured only at the foreshore with a Brunton Compass. Sample locations were plotted and digitized at a scale of 1:24,000 and entered into the GIS framework. Sediment samples were processed at the VIMS Sediment Laboratory, and grain size distributions have been calculated using a combination of Rapid Sediment Analyzer (RSA) and pipette techniques. The RSA method measures the fall velocity of a grain and translates the fall velocity into an equivalent grain diameter. Pipette analysis similarly measures grain diameter as a function of density and settling time. These techniques are preferable to mechanical sieving methods when the hydraulic transport characteristics (e.g., erosion and deposition) of the sediment are of paramount importance. All sediment samples are archived at VIMS. Grain size percents, standard sediment distribution statistics, and moment statistics were calculated and entered into the GIS data base as an attribute by station. Slope measurements are similarly stored as an attribute table within the SED coverage. The information can be queried through the system by choosing a site on the sediment station coverage. Foreshore and backshore data are stored as separate attributes. Following is a folio of all anticipated sediment station for the Northern Neck region of Virginia. Maps are represented at a scale of 1:68,000. The current available sediment and slope attribute data for the Northern Neck is included in tables divided by county. The database will be updated as more sediment samples are processed. 21 GEOGRAPHIC DATA SET DESCRIPTION VIMS GIS Lab Prefix SED Data Layer Name SEDIMENT SAMPLE COVERAGE Description COVERAGE INCLUDES A PLOT OF SAMPLE SITE LOCATIONS. SEDIMENT SAMPLE ANALYSIS AND BEACH SLOPE MEASUREMENTS. Year(s) Collected 1989-1990 Base Maps used for Digitizing USGS TOPOGRAPHIC MAPS (MYLAR MEDIUM) Digitizing Scale 1:24.000 Geographic Extent NORTHERN NECK OF VIRGINIA How Collected (Describe): SEDIMENT SAMPLES WERE COLLECTED BY HAND FROM THE FORSHORE AND BACKSHORE AT DESIGNATED SITES. FORSHORE SLOPE MEASUREMENTS WERE MADE WITH A BRUNTON COMPASS. STATIONS WERE PLOTTED ON TOPO SHEETS AND DIGITIZED. Actual/Intended Use or Purpose: MAP COVERAGE OF SEDIMENT SITES CAN BE OUERIED TO GIVE GRAIN SIZE AND BEACH SLOPE INFORMATION TO PREDICT EROSION/DEPOSITION RATES. STORM SURGE INCURSION. TIDAL WATER ELEVATIONS AND WAVE RUN-UP CALCULATIONS. 22 COMPREHENSIVE COASTAL INVENTORY AVERAGE TIME AND DISC SPACE USED* SEDIMENT INVENTORY COVERAGE MAP TIME DISC NUMBER SPACE SED5413 .25 49152 SED5414 .5 57344 SED5512 2.0 53248 SED5513 .75 57344 SED5514 .25 57344 SED5515 .25 49152 SED5612 .25 30720 SED5614 .5 I 57344 SED5711 .75 24576 SED5713 1.0 57344 SED5714 .5 57344 SED5810 .5 61440 SED5811 1.0 49152 SED5813 .5 57344 SED5814 .25 49152 SED5910 1.0 57344 SED5912 .5 24576 SED5913 .25 24576 SED6009 .75 57344 SED6010 1.0 49152 SED6011 .75 26624 SED6012 .75 24576 AVERAGE I .75 I 46918 *TIME IN HOURS, DISC SPACE IN BYTES 23 I &,\\\\\\\\\YIgi~\lna\\\\\\~\\\~~1; SED601i VIMS COASTAL INVENTORIES SEDIMENT SURVEY * SAMPLE STATION S E D 6 0 1 2 \\UPLAND II WATER BURGESS QUAD 24 SED5513 VIMS COASTAL INVENTORIES SED IMENT SURVEY * SAMPLE STATION ~S E D 5 5 l. 3 UPLAND SED5513 II WATER CHAMPLAIN QUAD 25 N ' 4 ;~~~~~~4 VIMS COASTAL INVENTORIES SEDIMENT SURVEY SAMPLE STATION x, UP LAND S E D 5 5 1 5 \xU~N II WATER COLONIAL BEACH NORTH QUAD 26 0143 ~~~~~~~~~~~~~~~~~~~~~~I VIMS COASTAL INVENTORIESSD51 SEDIMENT SURVEY *SAMPLE STATION S ED5 5 14 \\UIPLAND I I WATER COLONIAL BEACH SOUTHI QUAD 27 SED6009 VIMS COASTAL INVENTORIES SEDIMENT SURVEY SAMPLE STATION x\\ UPLAND S.E D 6 O 0 9 {I WATER DELTAVILLE QUAD 28 I~~~~~~~~~~~~~~~~~~~~~~~~~NK I~~~~~~~~~~u I~~~~~~~~~~~~~~~~ VIMS COASTAL INVENTORIES S E DG6 lO SEDIMENT SURVEY *SAMPLE STATION 5 E1 6 01 0 \\UIPLAND I I WATER FLEETS BAY QUAD 29 VIMS COASTAL INVENTORIES SED5912 VIMS COASTAL INVENTORIES SEDIMENT SURVEY * SAMPLE STATION SED591 2 \\UPLAND II WATER HEATHSVILLE QUAD 30 VIMS COASTAL INVENTORIES SEDIMENT SURVEY * SAMPLE STATION S E D 5 9 I O x\\ UPLAND II WATER IRVINGTON QUAD 31 jOto l VIMS COASTAL INVENTORIES SED5813 SEDIMENT SURVEY * SAMPLE STATION S E D 581 3 \ PLAND II WATER KINSALE QUAD 32 VIMS COASTAL INVENTORIES SE5811 SEDIMENT SURVEY SAMPLE STATION ,,5 UPLAND II WATER LIVELY QUAD 33 VIMS COASTAL INVENTORIES SED5413 SEDIMENT SURVEY * SAMPLE STATION S E D 5 4 1 3\\\UPLAND I I WATER LORETTO QUAD 34 VIMS COASTAL INVENTORIES SE573 SED IMENT SURVEY SAMPLE STATION ~S E D 5 7 1 3 UPLAND II WATER MACHODOC QUAD 35 VIMS COASTAL INVENTORIES SED5711 SEDIMENT SURVEY * SAMPLE STATION S5 UPLAND S E D 5 7 1 1 II WATER MORATTICO QUAD 36 I ~ ~ ~ ~ X O~~~~~~~N VIMS COASTAL INVENTORIESSE51 SEDIMENT SURVEY *SAMPLE STATION S ED,5 5 12 U\LPLAND ~~~~~~~~~~~~~~~~I II WATER MOUNT LANDING QUAD I ~~~~~~~~~~~~37 - SED5814 VIMS COASTAL INVENTORIES SEDIMENT SURVEY SAMPLE STATION ' UPLAND II Il A TER PINEY POINT QUAD 38 sED VIMS COASTAL INVENTORIES SEDIMENT SURVEY * SAMPLE STATION S E D 6 0 1 UPLAND II WATER REEDVILLE QUAD 39 SED5414 VIMS COASTAL INVENTORIES SEDIMENT SURVEY * SAMPLE STATION E D 5 4 lx 4 x UPLAND 8ED5414 II WATER ROLLINS FORK QUAD 40 VIMS COASTAL INVENTORIES SEDIMENT SURVEY SAMPLE STATION II WATER ST CLEMENTS ISLAND QUAD 41 I ED593 VIMS COASTAL INVENTORIES SED5913 SEDIMENT SURVEY * SAMPLE STATION SED5913 \\\ UPLAND II IATER ST GEORGE ISLAND QUAD 42 I 46 VIMS COASTAL INVENTORIES SEDIMENT SURVEY * SAMPLE STATION SED5614 UPLAND II WATER STRATFORD HALL QUAD 43 VIMS COASTAL INVENTORIESSE52 SEDIMENT SURVEY *SAMPLE STATION 5ED5612 \\\~UPLAND 1 1 WATER TAPPAIHANNOCK QUAD VIMS COASTAL INVENTORIES S580 SEDIMENT SURVEY * SAMPLE STATION S E D 5 8 I1 '' UPLAND II W ATER URBANNA QUAD 45 Table 7a. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES WESTMORELAND COUNTY FORESHORE STATION GRAVEL% SAND% SILT% CLAY% W1 37.5 61.8 0.7 0.0 W2 43.3 56.0 0.7 0.0 W3 6.4 92.9 0.7 0.0 W4 54.9 44.6 0.5 0.0 W5 30.6 68.6 0.8 0.0 W6 16.1 83.1 0.8 0.0 W7 41.7 57.6 0.7 0.0 W8 7.3 91.4 1.3 0.0 W9 13.9 85.1 1.0 0.0 W10 7.8 91.6 0.6 0.0 Wll 19.3 79.7 1.0 0.0 W12 19.6 79.6 0.8 0.0 W13 43.2 56.0 0.8 0.0 W14 40.4 58.6 1.0 0.0 W20 21.5 78.0 0.5 0.0 W21 35.2 64.4 0.4 0.0 W22 1.5 98.1 0.4 0.0 W23 39.7 59.5 0.8 0.0 W24 0.9 98.5 0.6 0.0 W25 1.2 94.4 4.4 0.0 W26 3.4 95.1 1.5 0.0 W27 2.9 95.3 1.8 0.0 W28 0.0 99.4 0.6 0.0 W29 9.2 90.4 0.4 0.0 W30 4.8 94.8 0.4 0.0 W31 15.6 83.8 0.6 0.0 W32 24.1 75.5 0.4 0.0 W33 6.9 92.6 0.5 0.0 W34 48.3 51.4 0.3 0.0 W35 13.3 86.2 0.5 0.0 W36 36.4 62.9 0.7 0.0 W37 52.9 46.7 0.4 0.0 W38 28.0 71.1 0.9 0.0 W39 23.1 76.3 0.6 0.0 W40 58.3 41.4 0.3 0.0 W41 40.0 59.4 0.6 0.0 W42 66.1 33.2 0.7 0.0 W43 26.9 72.6 0.5 0.0 W44 0.0 99.5 0.5 0.0 W45 12.2 84.1 3.7 0.0 W46 26.9 72.7 0.4 0.0 46 Table 7a. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES WESTMORELAND COUNTY FORESHORE STATION GRAVEL% SAND% SILT% CLAY% W47 3.8 95.8 0.4 0.0 W48 22.5 74.1 3.4 0.0 W49 3.3 96.1 0.6 0.0 W50 27.8 71.7 0.5 0.0 W51 10.5 88.5 1.0 0.0 W52 8.9 90.0 1.1 0.0 W59 59.1 39.9 1.0 0.0 W60 26.3 71.9 1.8 0.0 W101 8.9 89.2 1.9 0.0 W102 33.3 64.2 2.5 0.0 W103 58.3 40.5 1.2 0.0 W104 0.2 98.1 1.7 0.0 47 w I F w 1w w w Table 7b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS WESTMORELAND COUNTY FORESHORE STATION G MEDIAN G MEAN G STDEV G SKEWNESS G KURTOSIS M MEAN M STDEV M SKEW M KURT W1 1.2718 1.1362 0.6257 -0.3174 0.7220 1.1218 0.6964 -0.5998 4.3659 W2 1.11,47 0.9987 0.5682 -0.2314 0.7263 1.0119 0.6114 -0.0110 4.4987 W3 1.3979 1.3651 0.3456 -0.2492 0.4963 1.3214 0.4611 -1.7750 9.9042 W4 1.0903 0.9371 0.6239 -0.3413 0.7649 0.9654 0.6358 -0.2046 4.1549 W5 1.1148 1.0408 0.5770 -0.1149 0.7471 1.0634 0.5995 0.0222 3.8523 W6 0.7696 0.7199 0.6748 -0.1367 0.8083 0.7065 0.6909 -0.1205 2.7485 W7 1.1853 1.1132 0.5733 -0.1324 0.7255 1.1463 0.5907 0.1156 4.3104 W8 1.1287 1.0504 0.5427 -0.2896 0.7954 1.0274 0.5728 -0.6749 4.1354 W9 0.8963 1.0304 1.0289 0.1281 0.7609 1.0177 0.9680 0.1135 2.1891 W10 0.9327 0.8121 0.7568 -0.1698 0.7768 0.8572 0.7240 -0.0826 2.6179 Wll 0.8169 0.8234 0.5051 0.0274 0.8808 0.8321 0.5642 0.6555 5.5918 W12 1.0104 0.8353 0.6472 -0.3571 0.7271 0.8661 0.6681 -0.1041 3.8087 W13 -0.8902 0.8141 0.5131 -0.2620 0.8043 0.8225 0.5970 0.2310 6.7119 W14 0.7440 0.6555 0.6855 -0.1554 0.7666 0.6766 0.6846 0.0091 2.9637 W20 0.1460 0.0575 0.4901 -0.2388 1.2235 0.0533 0.5445 0.8694 6.9049 W21 -0.1726 -0.1934 0.4283 -0.0640 1.8378 -0.1504 0.4999 1.2024 8.6459 W22 0.5115 0.5307 0.4007 0.0262 0.8173 0.5476 0.4770 1.4610 10.3546 W23 0.7979 1.0065 1.1384 0.2465 1.0988 0.9243 1.0105 0.6410 2.5830 W24 0.9224 0.9076 0.4273 -0.0876 0.6787 0.9121 0.4878 0.4855 6.1871 W25 0.8743 1.0344 0.6704 0.3739 0.8489 1.0485 0.6840 0.7991 3.2988 W26 0.8832 0.8757 0.4975 -0.0492 0.7704 0.8705 0.5498 -0.0292 5.1268 W27 1.4472 1.5007 0.8792 0.0120 0.6118 1.4714 0.8704 -0.1383 2.4234 W28 1.0217 1.0684 0.4608 0.1452 0.6320 1.0684 0.4900 0.3836 4.4473 W29 0.4958 0.4368 0.7320 -0.0199 1.2879 0.5118 0.7546 0.7147 4.6317 W30 0.7961 0.7906 0.3582 -0.0290 0.6528 0.8112 0.4455 1.1283 8.9187 W31 0.5993 0.5574 0.7014 0.0580 1.3959 0.6232 0.7351 1.0133 5.2784 w wv - w w v ' w w Table 7b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS WESTMORELAND COUNTY FORESHORE STATION G_MEDIAN G_MEAN G_STDEV G_SKEWN G_KURTO M_MEAN M_STDEV M_SKEW M_KURT W32 0.9495 0.9900 0.5939 0.2172 0.9429 1.0384 0.6451 1.0202 5.1440 W33 0.9663 0.9921 0.7236 0.1064 1.0488 1.0330 0.7198 0.4920 3.6153 W34 0.9882 0.9749 0.5612 -0.0372 0.6818 0.9801 0.6341 0.0123 4.3824 W35 1.2212 1.1897 0.4707 -0.1905 0.6698 1.1531 0.5351 -1.1216 6.1884 W36 0.8683 0.8259 0.4850 -0.0708 0.7640 0.8467 0.5394 0.1024 4.7719 W37 0.6777 0.5105 0.7516 -0.2776 0.9594 0.5625 0.8005 0.3633 4.3660 W38 1.1296 1.0789 0.5610 -0.2102 0.8896 1.0587 0.5822 -0.6143 4.2596 W39 0.9230 0.8829 0.4065 -0.2122 0.7241 0.8743 0.4436 -0.0954 5.2938 W40 0.3265 0.2287 0.8316 0.0270 1.4474 0.3448 0.8723 1.1182 4.8838 W41 0.5346 0.4647 0.8323 0.0010 1.1018 0.5495 0.8683 0.7498 4.0120 W42 0.5379 0.5061 0.8397 0.1140 1.4485 0.6184 0.8919 1.1311 4.5506 W43 0.3282 0.2893 0.4896 -0.0431 1.0783 0.3747 0.7133 2.3285 11.5625 W44 1.0316 1.0964 0.3553 0.3249 0.5253 1.1215 0.4343 1.5964 9.3600 W45 0.9118 0.8282 0.8657 -0.1371 1.0303 0.8511 0.8609 0.0216 3.3433 W46 -0.1757 -0.1905 0.4394 0.0137 2.1910 -0.1582 0.4907 1.6710 10.5263 W47 0.6854 0.6160 0.4365 -0.2294 0.7480 0.6295 0.4927 0.5881 7.8986 W48 0.8812 0.7661 0.8413 -0.1433 0.8466 0.8024 0.8858 0.3885 3.4143 W49 0.8477 0.6594 0.6750 -0.3428 0.7104 0.6623 0.7363 0.3208 3.8131 W50 0.8416 0.7253 0.4392 -0.4454 0.7825 0.7502 0.5605 0.8184 9.2915 W51 1.1545 1.1246 0.5408 -0.1039 0.8023 1.1179 0.5990 -0.1867 4.8073 W52 1.2130 1.1598 0.6389 -0.2401 0.8800 1.1193 0.6725 -0.9459 4.6325 W59 0.8589 0.8344 0.7422 0.0145 1.0958 0.8684 0.7678 0.5832 4.4084 W60 0.5845 0.5543 0.8587 0.0919 1.3360 0.6416 0.8738 1.0077 4.7568 W101 0.4948 0.5583 0.7600 0.1402 0.7889 0.6042 0.8147 0.8285 4.1308 W102 1.3860 1.1854 0.7877 -0.3802 0.7107 1.2050 0.8091 -0.4215 3.1595 W103 0.9181 0.7762 0.7410 -0.2757 0.8021 0.7886 0.7510 -0.1412 3.2338 W104 0.8794 0.8689 0.5203 -0.0249 0.6518 0.8762 0.5712 0.1570 4.6656 Table 8a. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES WESTMORELAND COUNTY BACKSHORE STATION GRAVEL% SAND% SILT% CLAY% W1 2.5 96.6 0.9 0.0 W2 88.4 10.6 1.0 0.0 W3 0.0 98.9 1.1 0.0 W4 33.5 65.7 0.8 0.0 W5 4.7 94.9 0.4 0.0 W6 0.0 98.9 1.1 0.0 W7 1.4 97.6 1.0 0.0 W8 5.9 93.4 0.7 0.0 W9 0.5 98.5 1.0 0.0 W10 0.0 99.1 0.9 0.0 Wll 0.0 99.4 0.6 0.0 W12 18.9 80.7 0.4 0.0 W13 0.2 99.1 0.7 0.0 W14 0.0 98.7 1.3 0.0 W20 5.4 94.0 0.6 0.0 W21 0.8 98.4 0.8 0.0 W22 0.0 99.7 0.3 0.0 W23 0.0 99.1 0.9 0.0 W24 0.0 99.7 0.3 0.0 W25 0.0 99.4 0.6 0.0 W26 0.0 99.1 0.9 0.0 W27 0.0 98.4 1.6 0.0 W28 2.7 96.6 0.7 0.0 W29 0.0 98.8 1.2 0.0 W30 0.0 99.6 0.4 0.0 W31 0.0 99.6 0.4 0.0 W32 0.0 99.3 0.7 0.0 W33 0.1 99.2 0.7 0.0 W34 3.0 96.5 0.5 0.0 W35 64.1 35.6 0.3 0.0 W36 0.0 99.4 0.6 0.0 W37 47.6 52.1 0.3 0.0 W38 0.0 99.1 0.9 0.0 W39 13.5 86.1 0.4 0.0 W40 10.3 89.5 0.2 0.0 W41 3.4 95.9 0.7 0.0 W42 0.4 99.1 0.5 0.0 W43 0.0 99.5 0.5 0.0 v W44 46.8 52.7 0.5 0.0 50 Table 8a. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES WESTMORELAND COUNTY BACKSHORE STATION GRAVEL% SAND% SILT% CLAY% W45 9.5 75.6 14.9 0.0 W46 0.1 99.5 0.4 0.0 W47 30.6 69.1 0.3 0.0 W48 1.0 98.5 0.5 0.0 W49 41.1 58.4 0.5 0.0 W50 0.0 99.6 0.4 0.0 W51 0.0 99.3 0.7 0.0 W52 0.2 99.3 0.5 0.0 W59 0.0 98.4 1.6 0.0 W60 0.0 98.2 1.8 0.0 W101 0.3 97.1 2.6 0.0 W102 2.3 94.6 3.1 0.0 W104 2.7 95.5 1.8 0.0 51 Table 8b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS WESTMORELAND COUNTY BACKSHORE STATION GMEDIAN GMEAN GSTDEV GSKEWN GKURTO MMEAN M_STDEV M_SKEW M_KURT W1 1.5752 1.6091 0.2894 0.1814 0.3466 1.6079 0.3212 0.0567 6.6958 W2 1.1848 1.1380 0.6741 -0.0350 0.8700 1.1655 0.6869 0.3068 3.6100 W3 1.4727 1.4775 0.2445 0.0246 0.3288 1.4707 0.3292 -1.3127 17.5485 W4 1.2176 1.1851 0.3740 -0.1427 0.5465 1.1694 0.4807 -0.8045. 8.4677 W5 1.4962 1.5221 0.3065 0.1321 0.3739 1.5151 0.3835 -1.1542 13.4765 W6 1.2617 1.2579 0.3968 0.0002 0.5430 1.2575 0.4250 0.0426 4.6310 W7 1.4565 1.4885 0.3142 0.2123 0.4187 1.4884 0.4024 -1.0535 12.3006 W8 1.4300 1.4332 0.3831 0.0078 0.4383 1.4283 0.4245 -0.2558 6.6903 W9 1.7190 1.7097 0.5261 -0.0157 0.4246 1.7041 0.5448 -0.1810 3.2575 W10 1.7668 1.7609 0.2626 -0.0444 0.2849 1.7518 0.3489 -1.4224 16.7051 Wll 1.2387 1.2737 0.3047 0.1988 0.4467 1.2772 0.3701 0.0679 10.2750 W12 1.0282 1.0328 0.3920 0.0025 0.5772 1.0305 0.4501 0.3943 7.5239 W13 1.2824 1.2665 0.3667 -0.1351 0.5276 1.2565 0.4162 -0.3605 7.5968 W14 1.4070 1.4391 0.3773 0.1662 0.4476 1.4534 0.4379 0.7370 6.7789 W20 0.2108 0.1639 0.5188 -0.1429 0.9577 0.1817 0.5669 0.6927 6.1046 W21 0.5619 0.5129 0.3699 -0.1865 0.7346 0.5160 0.4195 0.6256 8.3426 W22 1.1627 1.1413 0.2371 -0.1173 0.3947 1.1429 0.3072 -0.5477 11.5244 W23 1.6082 1.7412 0.6185 0.2945 0.4739 1.7317 0.6469 0.2337 3.9977 W24 1.1248 1.1409 0.2906 0.1124 0.4545 1.1488 0.3560 0.4065 10.1915 W25 1.3258 1.3487 0.3118 0.1298 0.4146 1.3478 0.3584 -0.3688 10.2952 W26 1.4172 1.3942 0.3437 -0.1170 0.4434 1.3854 0.3902 -0.5995 6.5968 W27 1.2098 1.3228 0.5263 0.3270 0.5816 1.3230 0.5542 0.5476 4.0529 W28 0.5939 0.6508 0.5882 0.1636 0.9887 0.6632 0.5989 0.6473 3.6271 W29 1.0942 1.0746 0.5587 -0.0430 0.6597 1.0731 0.5881 -0.0643 3.7902 W30 1.2913 1.2979 0.2504 0.0584 0.3614 1.2978 0.2968 -0.4514 11.6451 W31 1.0423 1.0652 0.3230 0.1433 0.4937 1.0772 0.3980 0.9386 9.4694 w w w w W w w w w Table 8b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS WESTMORELAND COUNTY BACKSHORE STATION G_MEDIAN G_MEAN G_STDEV G_SKEWN G_KURTO M_MEAN M_STDEV M_SKEW M_KURT W32 1.3522 1.3800 0.3648 0.1694 0.4784 1.3978 0.4508 0.5729 8.7806 W33 1.2561 1.3679 0.6138 0.2560 0.5804 1.3595 0.6290 0.2939 3.6052 W34 1.5645 1.5749 0.2860 0.0803 0.3423 1,5811 0.3798 -0.6618 15.8557 W35 1.3886 1.4080 0.3041 0.0699 0.4036 1.3971 0.3877 -0.4322 10.7078 W36 1.5458 1.5658 0.4247 0.0043 0.4029 1.5463 0.4606 -0.9795 6.9221 W37 1.1936 1.1806- 0.2703 -0.0738 0.4098 1.-1827 0.3385 0.26264 11.4017 W38 1.4477 1.4938 0.3792 0.1516 0.4177 1.4819 0.4331 -0.4433 7.4816 W39 1.1869 1.1909 0.3067 0.0136 0.4608 1.1827 0.3663 -0.2692 7.4560 W40 0.9129 0.5638 0.8020 -0.5129 1.0680 0.7126 0.7864 -0.3802 3.9782 W41 0.7160 0.6950 0.4719 -0.0218 0.7258 0.7284 0.5630 0.9414 6.3832 W42 0.9847 1.0109 0.5350 0.1669 0.9470 1.0419 0.6515 0.9418 7.1869 W43 0.7533 0.7410 0.2674 -0.0949 0.5658 0.7757 0.4841 2.8929 20.8250 W44 0.3787 0.4246 0.7430 0.2452 1.2622 0.5221 0.7957 1.2604 5.0119 W45 0.3804 0.2915 0.7820 -0.0252 1.3139 0.4125 0.8874 1.2544 5.8048 W46 0.8115 0.8025 0.3241 -0.0088 0.6709 0.8274 0.4391 2.2874 16.7164 W47 0.0819 0.1204 0.5364 0.0664 1.4355 0.1291 0.6032 0.9193 5.7032 W48 1.2632 1.2278 0.4616 -0.1490 0.6373 1.2231 0.5209 -0.3687 5.3541 W49 0.7643 0.7427 0.6679 -0.0283 0.9918 0.7460 0.7161 0.2603 3.8745 W50 1.0521 1.0402 0.1981 -0.1000 0.3663 1.0455 0.2935 1.4328 18.4176 W51 1.1901 1.1868 0.3021 -0.0487 0.4898 1.1917 0.4261 0.8899 13.8917 W52 1.2097 1.2090 0.2842 -0.0065 0.4212 1.2091 0.3410 -0.1026 9.2859 W59 1.1178 1.1394 0.3103 0.1119 0.4805 1.1531 0.4106 1.1714 11.4415 W60 1.3899 1.4058 0.2804 0.0983 0.3661 1.4018 0.3805 -0.5874 17.1334 W101 1.0745 1.0336 0.4538 -0.1528 0.5875 1.0321 0.4894 -0.0797 4.7064 W102 1.4313 1.4022 0.3831 -0.1498 0.4602 1.3877 0.4538 -0.6843 7.1855 W104 0.7769 0.7432 0.6562 -0.0608 0.7393 0.7583 0.6415 0.1388 2.6032 TABLE 9. WESTMORELAND COUNTY FORESHORE SLOPE INVENTORY Station ID Slope (degrees) W1 21.5 W2 11.0 W3 9.5 W4 6.0 W5 8.5 W6 9.5 W7 7.0 W8 8.0 W9 8.0 W10 10.0 Wll 6.0 W12 6.0 W13 5.0 W14 5.0 W20 7.0 W21 6.0 W22 10.0 W23 7.5 W24 6.5 W25 4.0 W26 6.5 W27 7.0 W28 11.0 W29 3.0 W30 7.5 W31 8.0 W32 7.0 W33 8.5 W34 10.0 W35 7.5 W36 6.0 W37 9.5 W38 10.5 W39 9.5 W40 7.5 W41 8.0 W42 9.5 W43 9.5 W44 10.0 W45 9.5 W46 9.0 W47 9.5 W48 6.5 54 WESTMORELAND COUNTY FORESHORE SLOPE INVENTORY Station ID Slope (degrees) W49 8.5 W50 6.5 W51 6.5 W52 6.5 W101 7.5 W102 6.0 W103 8.2 W104 6.5 55 Table 10a. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES LANCASTER COUNTY FORESHORE STATION GRAVEL% SAND% SILT% CLAY% L1 18.0 81.5 0.5 0.0 L2 2.8 96.8 0.4 0.0 L3 4.2 95.4 0.4 0.0 L4 6.1 93.3 0.6 0.0 L5 0.9 98.6 0.5 0.0 L6 5.8 93.8 0.4 0.0 L7 1.9 97.6 0.5 0.0 L8 2.2 97.3 0.5 0.0 L9 10.7 89.0 0.3 0.0 L10 10.5 89.4 0.1 0.0 Lll 1.0 98.4 0.6 0.0 L12 4.2 95.6 0.2 0.0 L13 0.0 99.7 0.3 0.0 L14 0.2 99.3 0.5 0.0 L15 13.0 86.4 0.6 0.0 L16 0.9 98.6 0.5 0.0 L17 0.0 99.5 0.5 0.0 L18 0.3 99,7 0.0 0.0 L19 1.3 98.2 0.5 0.0 L20 0.1 99.2 0.7 0.0 L21 0.0 99.6 0.4 0.0 L22 4.3 95.1 0.6 0.0 L23 2.0 97.7 0.3 0.0 L24 18.8 80.7 0.5 0.0 L25 12.0 87.5 0.5 0.0 L26 8.5 90.9 0.6 0.0 L27 43.1 55.8 1.1 0.0 L28 22.8 75.9 1.3 0.0 L29 3.3 94.8 1.9 0.0 L30 1.6 96.8 1.6 0.0 56 w w - - w w w w w w w Table 10b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS LANCASTER COUNTY FORESHORE STATION G MEDIAN GMEAN G STDEV GSKEWN G KURTO MMEAN MSTDEV MSKEW MKURT L1 0.6063 0.5375 0.6267 -0.1537 0.9126 0.5482 0.6446 0.1710 3.6003 L2 0.3595 0.3617 0.4922 -0.0332 0.9229 0.3830 0.5660 0.8954 6.7553 L3 0.3053 0.3681 0.5618 0.1889 0.9031 0.4090 0.6090 0.9132 4.6828 L4 0.2428 0.2763 0.5767 0.0704 1.1714 0.3015 0.6398 1.2573 7.4641 L5 0.5837 0.5671 0.4522 -0.0682 0.8580 0.5746 0.4867 0.5056 5.7361 L6 0.1107 0.0832 0.5728 -0.0215 1.1852 0.1182 0.6025 0.7982 5.1259 L7 0.4477 0.4352 0.4377 -0.0056 0.9141 0.4899 0.5803 2.0699 11.5242 L8 0.6581 0.6322 0.3311 -0.1357 0.7036 0.6394 0.3905 1.1328 11.4603 L9 -0.0601 -0.0466 0.5203 0.1559 1.8150 0.0330 0.6812 2.5069 13.0513 L10 0.0415 -0.0020 0.4795 -0.0852 1.5587 0.0615 0.6176 1.9689 11.2481 Lll 0.5762 0.5595 0.4274 -0.0727 0.7836 0.5686 0.5030 0.9421 9.2625 L12 0.0311 0.0323 0.5315 0.0927 1.5006 0.0944 0.6750 2.1360 10.6280 L13 0.7193 0.6971 0.3034 -0.0781 0.6996 0.7268 0.4279 2.0424 16.3847 L14 0.7182 0.6699 0.5052 -0.0629 0.8059 0.7069 0.5430 0.5105 4.5889 L15 0.7358 0.6310 0.8483 -0.1352 1.0633 0.6379 0.8786 0.0855 3.0303 L16 1.2831 1.2950 0.5467 0.0347 0.5902 1.2885 0.5875 -0.1935 4.7020 L17 1.3090 1.3033 0.4294 -0.0501 0.5360 1.2854 0.4709 -0.7872 6.3947 L18 0.8481 0.8320 0.3448 -0.1079 0.6182 0.8260 0.4251 0.1699 8.1669 L19 0.9623 0.9815 0.7069 -0.0121 0.8021 0.9512 0.7351 -0.0714 3.6395 L20 1.3714 1.3956 0.5259 0.0216 0.6168 1.3713 0.5496 -0.3802 4.5635 L21 0.9147 0.9318 0.5358 0.0877 0.7266 0.9471 0.5805 0.7600 5.4911 L22 0.8414 0.7675 0.6904 -0.1403 0.7718 0.7898 0.7097 0.3125 3.6459 L23 0.8648 0.7851 0.5686 -0.1616 0.6652 0.8158 0.6008 0.3186 4.3191 L24 0.4762 0.3916 0.5909 -0.1587 0.9540 0.4427 0.6424 0.8373 5.9245 L25 0.3137 0.2848 0.6006 -0.0474 0.9910 0.3035 0.6323 0.6504 4.9139 L26 0.3821 0.3154 0.6358 -0.0947 1.2941 0.3726 0.6733 0.5785 4.7405 lw M r w w w w w Table 10b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS LANCASTER COUNTY FORESHORE STATION G_MEDIAN G_MEAN G_STDEV G_SKEWN G_KURTO M_MEAN M_STDEV M_SKEW M_KURT L27 -0.0618 0.2284 0.9162 0.5064 1.2769 0.3107 0.9897 1.2755 4.4423 L28 0.1475 0.2938 0.8472 0.2354 0.9295 0.2868 0.8249 0.5051 2.2920 L29 1.1688 0.8795 0.7780 -0.4954 0.8346 0.9462 0.8115 -0.3150 3.5330 L30 0.6277 0.6191 0.6451 -0.0311 1.0777 0.6107 0.6511 0.1789 3.4904 Table la. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES LANCASTER COUNTY BACKSHORE STATION GRAVEL% SAND% SILT% CLAY% L1 8.9 90.8 0.3 0.0 L2 0.9 98.6 0.5 0.0 L3 0.1 99.2 0.7 0.0 L4 0.0 99.5 0.5 0.0 L5 0.0 99.5 0.5 0.0 L6 0.0 99.8 0.2 0.0 L7 0.0 99.7i 0.3 0.0 L8 0.3 99.3 0.4 0.0 L9 2.1 97.6 0.3 0.0 L10 0.0 99.7 0.3 0.0 Lll 0.0 99.8 0.2 0.0 L12 0.0 99.9 0.1 0.0 L13 0.0 99.7 0.3 0.0 L14 0.0 99.3 0.7 0.0 L15 0.1 99.5 0.4 0.0 L16 6.9 92.0 1.1 0.0 L17 0.0 99.4 0.6 0.0 L18 11.4 88.5 0.1 0.0 L19 0.0 97.2 2.8 0.0 L20 0.0 98.7 1.3 0.0 L21 0.0 99.8 0.2 0.0 L22 0.2 99.6 0.2 0.0 L23 0.0 99.8 0.2 0.0 L24 0.0 99.7 0.3 0.0 L25 4.2 95.5 0.3 0.0 L26 0.0 99.2 0.8 0.0 L27 0.0 98.2 1.8 0.0 L28 0.0 98.9 1.1 0.0 L29 0.0 98.5 1.5 0.0 L30 1.1 97.7 1.2 0.0 59 1 w w w w w w Table Ilb. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS LANCASTER COUNTY BACKSHORE STATION GMEDIAN GMEAN GSTDEV GSKEWN GKURTO MMEAN MSTDEV M_SKEW M_KURT L1 1.1309 1.0881 0.4841 -0.1915 0.7077 1.0697 0.5470 -0.5605 5.4967 L2 1.0419 1.0897 0.5327 0.1195 0.7522 1.0965 0.6297 0.5406 6.2936 L3 0.9161 0.9212 0.4910 0.0665 0.6876 0.9474 0.5301 0.7835 5.8942 L4 1.1177 1.1334 0.3779 0.0911 0.5368 1.1528 0.4781 0.8470 8.9261 L5 0.9465 0.9342 0.4336 -0.0724 0.6498 0.9515 0.5203 1.0034 9.2268 L6 0.7166 0.7346 0.4407 0.i1139 0.7484 0.7581 0.4893 0.7451 5.6697 0"o �L7 0.7981 0.7695 0.3400 -0.1258 0.6156 0.7758 0.4359 1.3760 15.6959 L8 0.9163 0.9185 0.3365 -0.0394 0.6019 0.9405 0.4854 2.1944 14.1352 L9 0.9943 0.9529 0.4444 -0.1792 0.6888 0.9580 0.5269 0.6387 8.0728 L10 1.1945 1.2067 0.3299 -0.0098 0.5170 1.2031 0.4071 0.4105 8.2218 Lll 1.2917 1.2863 0.2324 -0.0291 0.3590 1.3079 0.4289 1.3501 18.7101 L12 0.9288 0.9033 0.3478 -0.1492 0.6092 0.9015 0.4215 -0.1678 8.1517 L13 1.1653 1.1653 0.3270 -0.0157 0.4827 1.1596 0.3846 -0.2275 8.8059 L14 0.9867 1.0184 0.6216 0.0645 0.8235 1.0149 0.6331 0.1845 3.6684 L15 1.5919 1.5986 0.3997 0.0160 0.4513 1.6051 0.4925 0.4645 6.6641 L16 1.2673 1.2782 0.9459 -0.0360 0.6198 1.2706 0.9443 -0.1318 2.2269 L17 1.5378 1.5333 0.4255 -0.0551 0.4528 1.5215 0.4830 -0.7277 7.5365 L18 0.7997 0.7149 0.5260 -0.3242 0.9330 0.6997 0.5651 -0.5628 4.5888 L19 1.9664 1.8264 0.6739 -0.3396 0.5544 1.8094 0.6984 -0.8632 3.7219 L20 1.4956 1.5294 0.3993 0.1289 0.4490 1.5295 0.4674 -0.0275 9.0580 L21 1.5805 1.5814 0.2800 0.0007 0.3510 1.5812 0.3809 -0.0105 14.5239 L22 1.4014 1.3788 0.3263 -0.1296 0.4524 1.3804 0.4652 0.2481 12.2284 L23 1.2897 1.2868 0.3336 -0.0303 0.4187 1.2942 0.3967 0.8021 8.5445 L24 1.1686 1.1788 0.4272 0.0871 0.6303 1.2060 0.5159 1.1486 8.3017 L25 0.5912 0.5588 0.5127 -0.1046 0.9384 0.5553 0.5430 -0.1277 4.1520 L26 1.2327 1.2584 0.3993 0.1230 0.4885 1.2708 0.4566 0.6463 7.4611 Table llb. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS LANCASTER COUNTY BACKSHORE STATION G_MEDIAN G_MEAN G_STDEV G_SKEWN G_KURTO M_MEAN M_STDEV M_SKEW M_KURT L27 1.5111 1.5178 0.2894 0.0036 0.3519 1.5105 0.3457 -0.2752 8.9087 L28 1.5061 1.4669 0.3774 -0.1654 0.4185 1.4612 0.4299 -0.4299 6.4050 L29 1.0428 1.0329 0.4452 -0.0888 0.6106 1.0338 0.5276 0.0721 7.3261 L30 0.7540 0.7103 0.7646 -0.0507 0.6824 0.7139 0.7609 0.1068 2.0798 TABLE 12. LANCASTER COUNTY FORESHORE SLOPE INVENTORY 0 Station ID Slope (degrees) L1 6.5 L2 6.5 L3 9.0 L4 9.5 L5 10.0 L6 7.0 L7 6.0 L8 5.0 L9 5.5 L10 5.5 L11 10.0 L12 10.0 L13 10.0 L14 6.0 L15 10.5 L16 8.5 L17 6.0 L18 6.0 L19 6.5 L20 7.0 L21 8.5 L22 10.0 L23 5.5 L24 8.5 L25 9.5 L26 11.0 L27 11.5 L28 8.5 L29 9.0 L30 7.0 62 Table 13a. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES RICHMOND COUNTY FORESHORE STATION GRAVEL% SAND% SILT% CLAY% R1 1.0 96.9 2.1 0.0 R2 12.0 86.7 1.3 0.0 R3 10.7 87.6 1.7 0.0 R4 7.1 91.7 1.2 0.0 R5 0.5 97.4 2.1 0.0 R6 1.1 96.7 2.2 0.0 R7 71.3 27.1 1.6 0.0 R8 2.1 96.3 1.6 0.0 R9 13.8 70.9 15.3 0.0 R10 33.5 64.7 1.8 0.0 63 Tables 13b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS RICHMOND COUNTY FORESHORE STATION GMEDIAN GMEAN G STDEV GSKEWN GKURTO MMEAN MSTDEV M SKEW MKURT R1 1.1937 1.1118 0.5656 -0.2285 0.6404 1.1015 0.5847 -0.3899 3.6972 R2 0.2197 0.2937 0.6901 0.1525 1.1561 0.3040 0.7124 0.9215 4.8681 R3 0.5103 0.4400 0.8436 -0.0944 0.8244 0.4622 0.8291 0.0522 2.2828 R4 0.6102 0.6302 0.7114 0.0608 0.8096 0.6331 0.7322 0.2947 3.0351 R5 1.0264 0.9727 0.5507 -0.1441 0.6227 0.9790 0.5910 0.0507 4.9251 R6 1.3183 1.2583 0.4028 -0.2555 0.4951 1.2450 0.4654 -0.9582 7.2409 R7 0.1606 0.3489 0.9850 -0.2555. 0.8803. 0.4096 1.0285 0.6928 3.0316 R8 1.0494 1.0608 0.5423 -0.0095 0.6829 1.0467 0.5442 -0.2390 3.3642 R9 1.8220 1.8496 1.0538 -0.0569 0.6506 1.7988 1.0048 -0.3062 2.4993 R10 1.0087 0.8560 0.9121 -0.1958 0.7226 0.8662 0.9251 0.0135 2.2895 Table 14a. SEDIMENT SURVEY DATA GRAIN SIZE PERCENTAGES RICHMOND COUNTY BACKSHORE STATION GRAVEL% SAND% SILT% CLAY% R1 2.3 96.3 1.4 0.0 R2 0.1 97.2 2.7 0.0 R3 9.5 88.9 1.6 0.0 R4 0.0 98.2 1.8 0.0 R5 0.0 97.5 2.5 0.0 R7 27.3 70.2 2.5 0.0 R8 0.0 97.7 2.3 0.0 R9 4.2 90.7 5.1 0.0 R10 16.3 82.0 1.7 0.0 65 Table 14b. SEDIMENT SURVEY DATA GRAIN SIZE STATISTICS RICHMOND COUNTY BACKSHORE STATION GMEDIAN GMEAN GSTDEV GSKEWN GKURTO MMEAN M STDEV MSKEW M KURT R1 0.5673 0.5827 0.7318 0.0259 0.8047 0.5893 0.7394 0.2779 2.8913 R2 1.1960 1.1418 0.4410 -0.2932 0.6463 1.1194 0.5007 -0.4588 6.8571 R3 0.4694 0.4852 0.6664 0.0270 0.9984 0.4983 0.7437 0.9879 5.6149 R4 1.5206 1.5034 0.3286 -0.1686 0.4213 1.4747 0.3801 -1.0774 6.4217 R5 1.2862 1.2488 0.4159 -0.1267 0.4759 1.2561 0.4764 0.2513 7.0692 R7 0.9289 0.7378 0.8932 -0.2618 0.7614 0.7882 0.9010 -0.0141 2.5827 R8 1.5321 1.5198 0.3381 -0.0714 0.3936 1.5100 0.3945 -1.0048 8.6754 R9 1.3614 1.2405 0.6410 -0.3751 0.7612 1.2305 0.7239 -0.4698 5.2671 R10 1.2059 0.9641 0.7864 -0.4089 0.7522 1.0173 0.8495 0.0007 3.7944 TABLE 15. RICHMOND COUNTY FORESHORE SLOPE INVENTORY Station ID Slope (degrees) R1 12.5 R2 9.5 R3 9.5 R4 5.5 R5 6.5 R6 11.0 R7 8.3 R8 10.0 R9 4.5 R10 8.0 Rll 9.0 R12 14.0 R13 19.0 R14 14.0 R15 15.0 R16 14.0 R17 13.0 R18 15.0 R19 5.0 R20 11.0 R21 15.0 R22 15.0 R23 16.0 R24 12.0 R25 15.0 R26 21.0 R27 15.0 R28 14.0 R29 18.0 R30 18.0 R31 15.0 R32 15.0 R33 10.0 R34 15.0 67 TABLE 16. NORTHUMBERLAND COUNTY FORESHORE SLOPE INVENTORY Station ID Slope (degrees) N1 15.0 N2 14.0 N3 11.0 N4 13.0 N5 5.0 N6 13.0 N7 10.0 N8 10.0 N9 5.0 N10 17.0 Nil 12.0 N12 12.0 N13 15.0 N14 16.0 N15 15.0 N16 11.0 N17 19.0 N18 15.0 N19 20.0 N20 14.0 N21 10.0 N22 14.0 N23 10.0 68 I CHAPTER XI. TIDAL MARSH INVENTORY COVERAGE I XI. TIDAL MARSH INVENTORY COVERAGE The Tidal Marsh Inventory Coverage (TMI) is the digital record of the VIMS Tidal Marsh Inventories developed by the Wetlands Research Program at the Virginia Institute of Marine Science (VIMS). The original delineation of tidal marshes were obtained using aerial photographs, topographic maps, and ground-truthing methods. The tidal marsh boundaries, forming polygons, were digitized at a scale of 1:24,000 and coded by location (FIPS). The marsh polygons are then transposed onto the SHL, 1:24,000 shoreline coverage (ref. Chapter 2). Future updates to the GIS Inventory will code marshes (e.g. polygons) by an existing set of criteria which will identify marsh polygons on the basis of species and habitat. Following is a complete folio of existing THI coverages, represented at a scale of 1:68,000, and documentation pertaining to these coverages. Virginia Institute of Marine Science GIS Laboratory GEOGRAPHIC DATA SET DESCRIPTION VIMS GIS Lab Prefix TMI Data Layer Name VIMS Tidal Marsh Inventory (VIMS Wetlands Inventory) Description Inventory of tidal wetlands in Virginia. by Wetlands Dent. of the Virginia Institute of Marine Science. as mandated by Sec. 62.1-13.4 of the Virginia Wetlands Act of 1972 (Code of Va.. Title 62.1). Year(s) Collected Various. 1974 - Present Base Maps used for Digitizing MYLAR USGS TOPO MAPS Digitizing Scale 1:24000 Map Projection UTM Zone 18 Geographic Extent Inventories complete for most of Va. coastal counties. selected portions of the coastal zone have been digitized. How Collected (Describe): Tidal marsh data was collected by EroundtruthinR the tidal waters of Virginia. Inventory reports were then published and wetland Dolvaons were transfered to mylar toDos for digitizing. Actual/Intended Use or Purpose: The TMI coverazes were generated with the intended DurDose of creating RPA and RMA Planning maDs. for evaluating salinity induced changes in the uDDer Pamunkv River. and monitoring changes to wetland resources. 70 VA TIDAL RIVERS INVENTORY AVERAGE TIME AND DISC SPACE USED* TIDAL MARSH INVENTORY MAP TIME DISC NUMBER I I SPACE TMI5307 18.0 i 296960 TMI5407 18.0 I 342016 TMI5413 5.25 1 178176 TMI5414 21.0 I 251904 TMI5415 I 21.0 1 382976 TMI5506 I 5.5 90112 TMI5507 24.0 497664 TMI5512 i 13.0 i 264192 TMI5513 I 25.0 1 391168 TMI5514 i 13.0 i 227320 TMI5515 i 2.0 73728 TMI5607 19.0 415744 TMI5611 8.0 124928 TMI5612 i 35.0 1 526336 TMI5613 I10.0 1 116736 TMI5711 33.0 i 444416 TMI5712 i 15.0 184320 TMI5713 I 19.0 423936 TMI5714 11.0 i 240468 TMI5807 17.25 I 446464 TMI5808 5.0 81920 TMI5809 i 15.0 i 307200 TMI5810 20.0 i 622592 TMI5811 i 16.0 i 229376 TMI5812 i 7.5 178176 TMI5813 I 19.0 356352 TMI5814 1 1.25 1 69632 TMI5907 1 55.0 1 999424 TMI5909 1 26.5 1 569344 TMI5910 1 14.0 1 315392 TMI5911 1 13.0 1 196608 TMI5912 17.5 587776 TMI5913 I 2.5 1 88064 TMI6007 I 17.25 307200 TMI6010 i 17.0 1 491520 TMI6011 36.0 697568 TMI6012 i 23.5 512000 AVERAGE I 17.25 I 338641 *TIME IN HOURS, DISC SPACE IN BYTES 71 VIMS COASTAL INVENTORIES T M l 5 9 07 VIMS TIDAL MARSH INVENTORY WETLANDS ACHILLES - !T E R GLOUCESTER COUNTY 72 VIMS COASTAL INVENTORIES TM16012 VIMS TIDAL MARSH INVENTORY I ETLANDS BURGESS -WATER NORTHUMBERLAND CO 73 VIMS COASTAL INVENTORIES TM15513 VIMS TIDAL MARSH INVENTORY CHAMPLAIN '- ATER WESTMORELAND CO 74 VIMS COASTAL INVENTORIES TMI5407 VIMS TIDAL MARSH INVENTORY m WETLANDS CHARLES CITY W AATER CHARLES CITY COUNTY 75 VIMS COASTAL INVENTORIES TMI5506 VIMS TIDAL MARSH INVENTORY m, WETLANDS CLAREMONT WATER PRINCE GEORGE COUNTY 76 VIMS COASTAL INVENTORIES TMI 5807 VIMS TIDAL MARSH INVENTORY T WETLANDS CLAY BANK WATER GLOUCESTER COUNTY 77 VIMS COASTAL INVENTORIES TM!5515 VIMS TIDAL MARSH INVENTORY E WETLANDS COLONIAL BEACH NORTH WATER WESTMORELAND CO 78 VIMS COASTAL INVENTORIES TM[I5 51 4 VIMS TIDAL MARSH INVENTORYPAWTND COLONIAL BEACH SOUTHWAE S~~~~~~~~~WtEs WESTMORELAND CO. 79 I~~' n I~~~gss I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ VIMS COASTAL INVENTORIES TM15514 VIMS TIDAL MARSH INVENTORY AdwTAD COLONIAL BEACH SOUTH - ATER I ~~~~ESTMORELAND CO I ~~~~~~~~~~~~~79 I VIMS COASTAL INVENTORIES TMI5415 VIMS TIDAL MARSH INVENTORY WETLANDS DAHLGREN WATER WESTMORELAND CO 8o VIMS COASTAL INVENTORIES TMI5 6 1 1 VIMS TIDAL MARSH INVENTORY WETLANDS DUNNSVILLE WATER ESSEX CO 81 VIMS COASTAL INVENTORIES TMI6010 VIMS TIDAL MARSH INVENTORY WETLANDS FLEETS BAY WATER LANCASTER CO 82 VIMS COASTAL INVENTORIES TMI5808 VIMS TIDAL MARSH INVENTORY WETLANDS GLOUCESTER WATER GLOUCESTER CO 83 VIMS COASTAL INVENTORIES TM15712 VIMS TIDAL MARSH INVENTORY WETANS HAYNESVILLE W, ATER RICHMOND CO 84 VIMS COASTAL INVENTORIES TMI5912 VIMS TIDAL MARSH INVENTORY a WETLANDS HEATHSVILLE W- ATER NORTHUMBERLAND CO 85 VIMS COASTAL INVENTORIES TM!5910 VIMS TIDAL MARSH INVENTORY M WETLANDS IRVINGTON WATER LANCASTER CO ~~ I I ~~u_: I~~~~ A, I~~~~~- h LANCASE CO _ _z~~~ g A8 VIMS COASTAL INVENTORIES TIAI5g13 VIMS TIDAL MARSH INVENTORY M WETLANDS KINSALE - 'ATER WESTMORELAND Co p ~~~~~~~~~~~~87 ,*q I VIMS COASTAL INVENTORIES TM15911 VIMS TIDAL MARSH INVENTORY ETLANDS LANCASTER - WATER k LANCASTER CO 1 ~~~~~~~~~~~~~88 VIMS COASTAL INVENTORIES TM I 581 VIMS TIDAL MARSH INVENTORY V WETLANDS LIVELY - ATER LANCASTER CO 89 VIMS COASTAL INVENTORIES TMI5413 VIMS TIDAL MARSH INVENTORY O WETLANDS LORETTO WATER WESTMORELAND CO 90 VIMS COASTAL INVENTORIES TMI5812 VIMS TIDAL MARSH INVENTORY W WETLANDS LOTTSBURG W ATER NORTHUMBERLAND COUNTY 91 VIMS COASTAL INVENTORIES TMI5713 VIMS TIDAL MARSH INVENTORY e WETLANDS MACHODOC WATER WESTMORELAND COUNTY 92 VIMS COASTAL INVENTORIES TMI5613 VIMS TIDAL MARSH INVENTORY ' WETLANDS MONTRO S S WATER WESTMORELAND CO 93 I~~~~~~~~~~~~~~L-p~rtJ~ i.-:~ VIMS COASTAL INVENTORIES TM15711 VIMS TIDAL MARSH INVENTORY M . MORATICO - WATER RICHMOND CO 94 VIMS COASTAL INVENTORIES TMI5512 VIMS TIDAL MARSH INVENTORY . WETLANDS MT. LANDING -ATER ESSEX CO VIMS COASTAL INVENTORIES TV5607 VIMS TIDAL MARSH INVENTORY WETLANDS NO0 R G E WATER JAMES CITY COUNTY 96 VIMS COASTAL INVENTORIES TM15814 VIMS TIDAL MARSH INVENTORY WETLANDS PINEY POINT WATER WESTMORELAND CO 97 VIMS COASTAL INVENTORIES TM6 01 1 VIMS TIDAL MARSH INVENTORY ETLANDS REEDVILLE WATER NORTHUMBERLAND CO 98'. I VIMS COASTAL INVENTORIES T MI5414 VIMS TIDAL MARSH INVENTORY ', WETLANDS ROLLINS FORK - WATER WESTMORELAND CO 99 VIMS COASTAL INVENTORIES TMI5714 VIMS TIDAL MARSH INVENTORY W WETLANDS ST. CLEMENTS ISLAND WATER WESTMORELAND COUNTY VIMS COASTAL INVENTORIES TMI5913 VIMS TIDAL MARSH INVENTORY A WETLANDS ST. GEORGE ISLAND WATER NORTHUMBERLAND CO VIMS COASTAL INVENTORIES TM15809 VIMS TIDAL MARSH INVENTORY OR WETLANDS SALUDA W- ATER MIDDLESEX CO 102 VIMS COASTAL INVENTORIES TMI5614 VIMS TIDAL MARSH INVENTORY WETLANDS STRATFORD HALL WATER WESTMORELAND COUNTY 103 VIMS COASTAL INVENTORIES TM15612 VIMS TIDAL MARSH INVENTORY WETLANDS TAPPAHANNOCK WATER RICHMOND CO 104 I~~~~~~~~~~~~~ l'A VIMS COASTAL INVENTORIES TMI5810 VIMS TIDAL MARSH INVENTORY T WETLANDS URBANNA W ATER LANCASTER CO 105 WESTOVER ATER CHARLES CITY COUNTY 106 VIMS COASTAL INVENTORIES TMI5909 VIMS TIDAL MARSH INVENTORY WILTON - WATER MIDDLESEX CO 107 0 I CHAPTER XII. LEFT/RIGHT BANK COVERAGE I I XII. LEFT/RIGHT BANK COVERAGE The Left/Right Bank (LRB) shoreline coverage is derived from the U.S. Geological Survey Digital Line Graph Data (DLG). The coverage is created by selecting only the shoreline from the hydrography Digital Line Graph. The survey was originally digitized by the U.S. Geological Survey at a scale of 1:100,000. The coverage serves as the current base shoreline for much of the VIMS Shoreline Inventory Report data collected in the mid to late 70's and updated in 1985, and the transportation network coverage supplied by the U.S. Geological Survey. Plots of the 1:100,000 shoreline can be found in the River Reach Coverage section (ref. Chapter 13). A folio is not included in this chapter, but documentation is presented here. 108 GEOGRAPHIC DATA SET DESCRIPTION VIMS GIS Lab Prefix LRB Data Layer Name LEFT/RIGHT BANK Description ONLY LEFT/RIGHT BANK SHORELINE DERIVED FROM THE USGS DIGITAL LINE GRAPH OF HYDROGRAPHY. Year(s) Collected VARIES Base Maps used for Digitizing DIGITIZED BY USGS Digitizing Scale 1:100000 Geographic Extent SELECTED AREAS OF COASTAL VIRGINIA How Collected (Describe): THE HYDROGRAPHY COMES FROM USGS MAPS. Actual/Intended Use or Purpose: THE LRB COVERAGE IS USED AS A BASE MAP FOR WORK DONE ON A 1:100000 SCALE (IE. RIVER REACH COVERAGE INFORMATION). 109 VA TIDAL RIVERS INVENTORY AVERAGE TIME AND DISC SPACE USED* LEFT-RIGHT BANK COVERAGE MAP TIME DISC NUMBER I I SPACE LRB5608 1.5 1 47104 LRB5710 I 1.0 I 38912 LRB5809 1.5 I 45056 LRB5506 I 1.75 1 40960 LRB5609 I 1.25 1 45056 LRB5905 1 .75 1 47104 LRB5512 1 1.75 38912 LRB6005 1 2.75 63488 LRB6207 .25 36864 LRB6206 1 .25 36864 LRB6012 I .5 1 51200 LRB5706 1.5 I 61440 - LRB5707 1.0 1 51200 LRB5606 I .75 i 47104 LRB5904 1 3.0 1 45056 LRB5611 I 1.0 1 36864 LRB5805 I 1.5 53248 LRB6004 1.25 1 53248 LRB6104 1 .75 1 61440 LRB5207 1.25 53248 LRB5307 I 1.25 1 38912 LRB5407 1 .75 36864 LRB6305 i 1.25 1 45056 LRB6306 I 2.0 71680 LRB6308 I 2.0 59392 LRB6309 I 2.0 1 47104 LRB6310 I .75 34816 LRB6312 i 1.0 i 53248 LRB6411 1 1.25 1 55296 LRB6410 I 2.0 59392 LRB6511 I 1.25 57344 LRB6512 I 1.25 49152 LRB5507 1 3.5 65536 AVERAGE I 1.5 I 50088 * TIME IN HOURS, DISC SPACE IN BYTES 110 0 k 0 CHAPTER XIII. RIVER REACH INFORMATION COVERAGE I I - I I I I I XIII. RIVER REACH INFORMATION COVERAGE The River Reach Information (RVR) coverage contains information collected for the Shoreline Inventory Data Base developed at VIMS in the mid to late 70's, and updated in 1985. The data base houses information on shoreline type, usage, condition, stability, and stabilization structures on a reach by reach basis. An eight digit code identifies a reach based on water body, county, and reach number. Attribute tables store data for each reach and can be linked with the reach identification number using a code called REACHCODE. Reach locations/codes are digitized and plotted on the LRB, 1:100,000 shoreline coverage (ref. Chapter 12). Methodologies for data collection and analysis are referenced in the Shoreline Situation Reports (Byrne et al. 1976-1978) published by county at the Virginia Institute of Marine Science, or in Shoreline Erosion in Tidewater Virginia (Byrne and Anderson, 1985), also published at VIMS. A folio of the river reach stations is included in this section. For publication purposes, maps are represented at a scale of 1:68,000. Documentation on this coverage follows. GEOGRAPHIC DATA SET DESCRIPTION VIMS GIS Lab Prefix RVR Data Layer Name RIVER REACH INFORMATION Description THIS INFORMATION COMES FROM THE VIMS SHORELINE INVENTORY DATA BASE. IT CONTAINS INFORMATION ON SHORELINE REACHES. Year(s) Collected 1975 1985 Base Maps used for Digitizing USGS HYDROGRAPHY DIGITAL LINE GRAPH (DLG) Digitizing Scale 1:100000 Geographic Extent MOST OF COASTAL VIRGINIA How Collected (Describe): ORIGINAL DATA WAS COLLECTED USING MAPS AND VERTICAL PHOTOGRAPHY FOR THE VIMS SHORELINE SITUATION REPORTS. DATA WAS UPDATED IN 1985 WITH A VIDEO SURVEY. Actual/Intended Use or Purpose: TO ANALYZE THE PHYSICAL AND GEOGRAPHICAL PROPERTIES. LAND USE PATTERNS, AND GENERAL SHORELINE CONDITIONS ON A REACH BASIS. 112 VA TIDAL RIVERS INVENTORY AVERAGE TIME AND DISC SPACE USED* RIVER REACH COVERAGE MAP TIME DISC NUMBER I I SPACE RVR5512 I 1.25 1 16384 RVR5710 1 1.5 1 28672 RVR5809 I 2.0 1 16384 RVR5608 I 1.0 1 47104 RVR5506 1 2.0 1 36864 RVR5609 1 1.75 I 43008 RVR6005 1 2.0 1 63488 RVR5905 I 1.5 1 45056 RVR6206 I 1.5 1 36864 RVR6207 i 1.25 1 36864 RVR6012 I 1.0 1 49152 -RVR5706 1 2.25 1 59392 RVR5707 1 .75 1 49152 RVR5606 1 2.0 1 47104 RVR5904 I 1.75 1 43008 RVR5611 i 1.75 1 34816 RVR5805 i 1.25 53248 RVR6004 I 1.0 53284 RVR6104 I .75 1 61440 RVR5207 1 1.75 1 49152 RVR5307 1 1.75 I 38912 RVR5407.1 2.25 1 36864 RVR6305 1 1.55 1 45056 RVR6306 I 1.0 1 63488 RVR6308 I 1.0 i 55296 RVR6309 I 1.5 1 45056 RVR6310 I 1.25 1 34816 RVR6312 i 1.75 i 49152 RVR6411 i 1.75 i 55296 RVR6410 1.25 i 55296 RVR6511 i 1.25 i 55296 RVR6512 1 .25 1 53248 RVR5507 1 1.75 61440 RVR5811 I 1.5 1 46683 RVR5906 i 1.5 1 46683 RVR6007 I 1.5 1 46683 RVR6008 1 1.5 1 46683 AVERAGE I 1.5 I 46683 * TIME IN HOURS, DISC SPACE IN BYTES I VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES BRANDON QUAD 114 YIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES CHARLES CITY QUAD 115 \ ) X F~~~~~~~~~I 0~7/H A ) / r~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES CLAREMONT QUAD L16 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES DUNNSVILLE QUAD 117 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES FRANKTOWN QUAD 118 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION GREAT FOX ISLAND QUAD 119 I 0 I ~~~51~~~1 0 <~~~~~~~~~~2 I VIMS COASTAL INVENTORIES~~P RIVER REACH INFORMATION A 1 2 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES HOG ISLAND QUAD 121 I VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES HOPEWELL QUAD 122 0~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I k VIMS COASTAL INVENTORIES RIVER REACH INFORMATION JAMESFILLE QUAD I 123 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES LIVELY QUAD 124 VIMS COASTAL INVENTORIES RIVER REACHI INFORMATION REACHCODES MATHEWS QUAD 125 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES MOUNT LANDING QUAD 126 OM7 700272MM _40930 VIM$ COASTAL INVENTORIES RIVER REACH INFOR MATION REACHCODES MULBERRY ISLAND QUAD 127 ~7 ( VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES NEW POINT COMFORT QUAD 128 tr~) I~~~~~~~~ I VIMS COASTAL INVENTORIES R I VER R EA CH I N FO RMA TIO N I ~~~~~~REACIJCODES NfL PO INT COMFORT QUAD I128 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES NEWPORT NEWS NORTH QUAD 129 xn A VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES NEWPORT NEWS SOUTH Q'UAD 130 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES NORFOLK NORTH QUAD 131 V IMS COASTAL INVENTORIES RIVER REACH INFORMATION ' REACHCODES PARKSLEY QUAD 132 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES POQUOSON WEST QUAD 133 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES PUNGOTEAGUE QUAD 134 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES SALUDA QUAD 135 ,400MM50 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCOD.ES SURRY QUAD 136 Is VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES TOANO QUAD 137 Y ( RIVER REACH INFORMATION REACHCODES TOWNSEND QUAD 138 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES WARE NECK QUAD VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES WESTOVER QUAD 140 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES WEST POINT QUAD I141 VIMS COASTAL INVENTORIES RIVER REACH INFORMATION REACHCODES WILLIAMSBURG QUAD 142 CHAPTER XIV. PROCEDURE FOR ANALYZING HISTORICAL CHANGE IN SHORELINE POSITION X!V. PROCEDURE FOR ANALYZING THE HISTORICAL CHANGE IN SHORELINE POSTIONS A procedure has been developed within the GiS framework to analyze and compare historic rates of shoreline change with present-day shoreline conditions. Lilleys Neck, situated northwest of Rigby Island in Mathews County, was used as a study site. Lilleys Neck, currently a refuge, is being considered for rezoning which will potentially allow for future development. Local governments as well as state advisory agencies are interested in assessing the historic patterns in shoreline change for this reach. The 1981 VIMS Shoreline Inventory database, now an integral component of the GIS system, reports an erosion rate of 3.1 feet per year. This estimate is based on 89 years of change from 1855 to 1944. To accurately measure the erosion rate for this time period, the 1855 shoreline, published by the U.S. Coast and Geodetic Survey (now the National Ocean Service), was digitized at a scale of 1:20,000 and entered into the GIS database. Similarly, the 1944 U.S. Geological Survey topographic map of the region was digitized at a scale of 1:24,000. When these two coverages were superimposed an approximate erosion rate for this 89-year period was computed to be 2.9 feet per year. Within the accuracy limits of the map medium, this rate is in agreement with the rate reported in the 1981 Shoreline Inventory database. A 1976 shoreline record was also digitized from the Virginia Marine Resource Commission shoreline map series which are surveyed at a scale of 1:5000. Initial interpretation of this coverage, when compared with the historic shoreline records, suggest that the position of the shoreline has accreted substantially from its position in 1944. Analysis of 1990 vertical photographs and a ground survey of Lilleys Neck, using a Topcon GTS-3B infrared digital survey instrument, indicates that the position of the current shoreline is slightly landward of the 1976 shoreline position. This suggests that presently the shoreline is undergoing recession and the shore is in a state of erosion. Observations in the field also suggest the shore to be unstable and erosion taking place. 143 LILLEY'S NECK MATHEWS CO., VA 1 855 .< r94410 S 1' ~~~~~~~~MHW 1990 I".I-.. A ,~~~~~~~~~~~~~~~~~~ Ils -7~~~~~~~~~~~� I-- I' 7" /U N.i r ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~~~~. N I�\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~I N \ \~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ N 1 I� ' ' I� \ 1I 1 \ 1 ~~~~~~855 S S 1976 S IH-I- MHW 1990 \ If 5 255 see N f�~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CHAPTER XV. PROCEDURE FOR ANALYZING THE EFFECTS OF LAND USE ON VEGETATED WETLANDS XV. PROCEDURE FOR ANALYZING THE EFFECTS OF LAND USE ON VEGETATED WETLANDS A procedure for analyzing the effects in upland land use on tidal wetlands has been developed to delineate vegetated habitats alongshore and spatially relate these environments to the adjacent upland land use patterns. It is accepted that man-induced influences along the shore contribute to the degradation of wetland habitats. Shore stabilization structures inhibit inland migration of tidal wetlands by blocking the natural intrusion of salt water from tidal fluctuations and rising sea level. Development has been responsible for filling existing wetlands as well as decreasing upland acreage potentially available for vegetation with sea level rise. These factors and others have initiated the need for improved resource management techniques. A balance between the desire to develop within the coastal plain and the responsiblities vested in governments to protect natural resources must be established. It is suggested that the functional value of existing wetlands can be determined by examining the adjacent upland land use on a reach by reach basis. Generally, the value of an existing wetland as the potential for continued growth in inhibited by development. Tidal waters of Sarah's Creek and Urbarma Creek were delineated using historic and present-day vertical photographs. Upland reaches were delineated by the following land use patterns: agricultural, residential, commercial and forested. Shoreline type for historic photographs were delineated on the basis of vegetated or nonvegetated shore. Analysis of recent photographs analysed was expanded to include riprap and bulkhead structures. The tidal watershed of these creeks were ground-truthed between August and September of 1990 for accuracy in photo interpretation. Delineations were plotted on existing 1:24,000 shoreline records in the VINS GIS. Data was stored as two separate coverages: land use and shore condition. Nodes were entered directly to form the longshore borders of each attribute identified. Arcs were created by connecting nodes and then coded according to shore type or land usage. The length of each arc is calculated and can be totaled, if desired, for an individual attribute (e.g. total vegetated shore, forested upland, etc.). Shore condition can then be assessed and directly compared with land use patterns when the two coverages are superimposed. Historical overlays can be produced to assess changes in shoreline conditions as a function of changes in land use patterns. A decrease in vegetated shore coverage resulting from increased development could be detected. Results of historical comparisons can be used as a tool to predict the functional value of existing wetlands in lieu of present-day land uses. 146 VIMS UPLAND USE STUDY Sarah's Creek 1953 I-'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~RWTA mot~~~~~~~~~~~~~~~~~~ers~~~~~ .. OM A 588 1888~~~~~~~~~~~~~~AITA w w w w w w~~~~~~~~~~~~~~~~~~~~~~~~~~q VIMS UPLAND USEI STUDY Sarah's Creek 1960 i-a~~~~~~~~~~~~~~~~~~~~~~~~~~~MTA ~~~~~~~~~~~~~~~~~~~~~~~~CMOCIAL see ieee~~~~~~~~~~~~~~~~~~~~~~GJLLA VIMS UPLAND USE STUDY Sarah's Creek 1971 " RETIA " COMCIAL - - AGWITUIA se-ST motors VIMS UPLAND USE STUDY Sarah's Creek 1979 RESDENTIAL COMORICIAL AGWJXLTUKA1 mumcmm mo16r* w N w w w M NW VIMS UPLAND USE STUDY Sarah's Creek 1982 RESI!NTIAL "' COMhRICIAL AGWbUTUAL " FOREST / e terLO( 6 666 teee~~,, VIMS UPLAND USE STUDY Sarah's Creek 1990 KWIDTIAL COMMICIAL 'AGWITURZAL sOREST e 560 8B VIMS SHORELINE USE STUDY Sarah's Creek 1976 I-'~~~~~~~~~~~~l MARSH X- 104VEGETATED RIPRAP BUJKAD MARSH/BULOWD MAklRSH/MPRAP -MNARSH TOE KCODED SHORfNE e ~~~see 1806 VIMS SHORELINE USE STUDY Sarah's Creek 1990 MARSH WONEGETATMD -RIPRMP B EUUGEAD -- ?hflh/SHUU~tAD MARSH/gRRAP -ARSH TOE KUCOME SHORELE seters0 VIMS UPLAND USE STUDY Urbanna Creek 1960 - RESWENTIAL COMROIAL e-e AGWJITIRAL FOREST - KCOOED e 5ee ~~Mier* VIMS UPLAND USE STUDY Urbanna Creek 1972 Oi - RESMEN IAL COM?.EIEIAL - ACAGWIUlAL = FOREST see 1eee VIMS UPLAND USE STUDY Urbanna Creek 1982 -RESVNTIAL COMORCIAL 1-6 AGWILTIUAL FOOET -NCOoM mater" 6~~~~~e 1600 VIMS UPLAND USE STUDY Urbanna Creek 1990 - RESNTIAL COMMRIAL '-e AGWJAT1RAL FOREST - COMe VIM''S SHORELINE USE STUDY Urbanna Creek 1981 ks ... � .:� ' MARSH MMNOtVEGETATED RIPRAP ~ BUUGAD MARSH/BUJUEA = MARSH/RIPRAP - MARSH TOE MMIe UIEI2D SHORUNE e ~~~ee W ee w~~~~~~~~~~~~~~~~~ I F w w M r lw I F ww VIM''S SHORELINE USE STUDY Urbanna Creek 1990 ~ MARSH -NONUVGATOD RIPRAP BULIGMAD = MARSH/MPRAP - MARSH TOE MM'EOOE SHKLELE e ~ ~ ee ieee0 CHAPTER XVI. PROCEDURE FOR ANALYZING SPATIAL AND TEMPORAL CHANGES IN WETLAND SPECIES XVI. PROCEDURE FOR ANALYZING THE SPATIAL AND TEMPORAL CHANGES IN WETLAND SPECIES A procedure to quantify the spatial and temporal change in wetland species and habitats has been developed by the Coastal Inventory in cooperation with staff of the Wetlands Research Program. A sixty (60) hectare section of Sweethall Harsh in King William County was delineated from six (6) sets of vertical imagery photographed between 1938 and 1976. Arrow Arum (Peltandra virginica), Big Cordgrass (Spartina cynosuroides), a mixed marsh assemblage, and a tidal mudflat was hand- traced directly from the photographs for each year. Each delineation was then digitized and coded by species and entered into the GIS database. Since the delineations formed polygons, the acreage for any one species could be calculated for a given year. As expected, the results of the study indicated that species sensitive to high salinity environments (e.g., mixed marsh assemblage) spatially decreased over time and were eventually eradicated from the population. Species like Big Cordgrass, which are salt tolerant, increased spatially over time. Those species thriving in the tidal mudflat which could not tolerate high salinity environments were eventually replaced with species like Big Cordgrass which could. The temporal changes are likely due to an increase in salinity from external environmental pressures, and an increase in salt water inundation as a result of sea level rise. 161 w W M r W M w w UPPER LIMITS SWEET HALL MARSH PAMUNKEY RIVER, VA. 1937 P. VIRGINICA S. CYNOSUROIDES VI/ /A MIXED MARSH MUD FLAT UPPER LIMITS SWEET HALL MARSH PAMUNKEY RIVER, VA. 1953 a~~~~s P. VIRGINICA TIC ~Xs S. CYNOSUROIDES MIXED MARSH _ MUD FLAT w w w w w - W UPPER LIMITS SWEET HALL MARSH PAMUNKEY RIVER, VA. 1960 ar~iwz P. VIRGINICA ~ S. CYNOSUROIDES MIXED MARSH MUD FLAT UPPER LIMITS SWEET HALL MARSH PAMUNKEY RIVER, VA. 1969 P. VIRGINICA L$ S. CYNOSUROIDES ~-~~ ~ vMIXED MARSH UPPER LIMITS SWEET HALL MARSH PAMUNKEY RIVER, VA. 1976 ...jM P. VIRGINICA S. CYNOSUROIDES v fAMIXED MARSH IN MUD FLAT I I APPENDICES 0 I p I k� I I i APPENDIX I. I 0 I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ l COMPREHENSIVE COASTAL INVENTORY COMPLETED TOPOGRAPHIC COVERAGES QUAD NAME & NUMBER SHO WAT TMI NWI LRB RVR SHL FPA ECO ERP FLL ACHILLES 5907 0 X X 0 X BEULAHVILLE 5311 * CHAMPLAIN 5513 0 X X X O X CLAY BANK 5807 0 X X O X X COLONIAL BEACH NORTH 5515 0 X X X 0 X COLONIAL BEACH SOUTH 5514 0 X X X 0 X DAHLGREN 5415 0 0 X DELTAVILLE 6009 X X 0 FLEETS BAY 6010 0 X X 0 GRESSIT 5708 X X X X HANOVER 5211 * HEATHSVILLE 5912 0 X X 0 IRVINGTON 5910 X X X X KING & QUEEN COURTHOUSE 5510 * * * KING WILLIAM 5410 * * * X KINSALE 5813 0 X X 0 X LORETTO 5413 0 0 X MACHODOC 5713 0 X X 0 X MANQUIN 5310 * * * X 0 MATHEWS 6008 X X 0 X 167 QUAD NAME & NUMBER SHO WAT TMI NWI LRB RVR SHL FPA ECO ERP FLL MORATICO 5711 0 X X 0 NEW KENT 5509 * * * * NEW POINT COMFORT 6007 0 X X 0 X X PINEY POINT 5814 0 X X 0 X POQUOSON EAST 6006 X X 0 X X POQUOSON WEST 5906 X X X QUINTON 5309 * X REEDSVILLE 6011 0 X X 0 ROLLINS FORK 5414 0 0 X ST. CLEMENTS ISLAND 5714 X X X X X X X X ST. GEORGE ISLAND 5913 0 X 0 SEVEN PINES 5209 * STRATFORD HALL 5614 X X X X X X STUDLEY 5210 * * 0 TAPPAHANNOCK 5612 0 X X 0 TOANO 5608 * * * 0 0 TUNSTALL 5409 * * * * 0 URBANNA '5810 X X X X WALKER 5508 * * * WEST POINT 5609 * * * * 0 0 WILTON 5909 0 X X 0 YORKTOWN 5806 X X X WILLIAMSBURG 5707 O O O 168 QUAD NAME & NUMBER SHO WAT TMI NWI LRB RVR SHL FPA ECO ERP FLL DUTCH GAP 5208 0 CHARLES CITY 5407 0 O O O NEWPORT NEWS SOUTH 5904 O O O HAMPTON 6005 0 0 ELLIOTTS CREEK 6206 0 CAPE CHARLES 6207 0 0 HOG ISLAND 5706 0 0 SURRY 5606 0 0 MULBERRY ISLAND 5805 0 0 NORFOLK NORTH 6004 0 0 LITTLE CREEK 6104 0 0 FISHERMANS ISLAND 6305 0 0 TOWNSEND 6306 0 0 FRANKTOWN 6308 0 0 JAMESVILLE 6309 0 0 NANDUA CREEK 6310 0 0 GREAT FOX ISLAND 6312 0 0 CHESCONESSEX 6411 0 0 PUNGOTEAGUE 6410 0 0 PARKSLEY 6511 0 0 SAXIS 6512 0 0 NEW POINT COMFORT 6007 0 MATHEWS 6008 0 169 QUAD NAME & NUMBER SHO WAT TMI NWI LRB RVR SHL FPA ECO ERP FLL HOPEWELL 5207 0 0 0 WESTOVER 5307 0 0 0 0 CLAREMONT 5506 0 0 0 0 BRANDON 5507 0 0 0 0 MOUNT LANDING 5512 0 0 0 0 NORGE 5607 0 0 TRUHART 5610 0 DUNNSVILLE 5611 0 0 0 0 MONTROSS 5613 0 0 CHURCH VIEW 5710 0 0 0 HAYNESVILLE 5712 0 0 SUFFOLK 5802 0 BENNS CHURCH 5804 0 GLOUCESTER 5808 0 0 SALUDA 5809 0 0 0 0 LIVELY 5811 0 0 0 LOTTSBURG 5812 0 0 BOWERS HILL 5903 0 NEWPORT NEWS NORTH 5905 0 0 0 WARENECK 5908 0 LANCASTER 5911 0 0 BURGESS 6012 0 0 0 0 KEMPSVILLE 6103 0 170 LEGEND *- INDICATES COVERAGES CREATED BETWEEN 3/88 AND 3/89 X- INDICATES COVERAGES CREATED FROM 3/89 TO 9/89 0- INDICATES COVERAGES COMPLETED FROM 9/89 TO 9/90 SHO-SHORELINE CLASSIFICATION 1:24000 WAT-WATERSHED BOUNDARIES 1:24000 TMI-TIDAL MARSH INVENTORIES 1:24000 NWI-NATIONAL WETLANDS INVENTORIES 1:24000 LRB-LEFT/RIGHT BANK FROM USGS DLG'S 1:100000 RVR-RIVER REACH COVERAGES 1:100000 SHL-SHORELINE COVERAGES 1:24000 FPA-FLOOD PRONE AREAS 1:24000 FLL-FLIGHT LINE TRAJECTORIES 1:24000 ECO-ECOLOGICALLY SENSITIVE AREAS 1:24000 ERP-ESTUARINE RESEARCH PRESERVES 1:24000 171- APPENDIX II. I I COMPREHENSIVE COASTAL INVENTORY HIGH RESOLUTION SHORELINE COVERAGES QUAD NAME & NUMBER MRC NSHL SED STRUCTS WESTMORELAND CO SHORELINE 6002540 X 0 WESTMORELAND CO SHORELINE 6002560 X 0 WESTMORELAND CO SHORELINE 6152540 X 0 WESTMORELAND CO SHORELINE 6152560 X 0 0 0 WESTMORELAND CO SHORELINE 6302500 X 0 WESTMORELAND CO SHORELINE 6302540 X 0 WESTMORELAND CO SHORELINE 6302560 X 0 0 0 WESTMORELAND CO SHORELINE 6302580 X WESTMORELAND CO SHORELINE 6452500 X 0 WESTMORELAND CO SHORELINE 6452520 X 0 WESTMORELAND CO SHORELINE 6452540 X 0 0 0 WESTMORELAND CO SHORELINE 6452560 X 0 WESTMORELAND CO SHORELINE 6602460 X 0 WESTMORELAND CO SHORELINE 6602480 X 0 WESTMORELAND CO SHORELINE 6602500 X 0 WESTMORELAND CO SHORELINE 6602520 X 0 0 0 WESTMORELAND CO SHORELINE 6602540 0 0 0 0 WESTMORELAND CO SHORELINE 752420 0 0 172 QUAD NAME & NUMBER MRC NSHL SED STRUCTS WESTMORELAND CO SHORELINE 6752440 0 0 WESTMORELAND CO SHORELINE 6752460 0 0 WESTMORELAND CO SHORELINE 6902420 0 0 WESTMORELAND CO SHORELINE 6902440 0 0 WESTMORELAND CO SHORELINE 7052400 0 0 WESTMORELAND GO SHORELINE 7052420 0 0 WESTMORELAND CO SHORELINE 7052440 0 0 WESTMORELAND CO SHORELINE 7202400 0 0 WESTMORELAND CO SHORELINE 7202420 0 0 WESTMORELAND CO SHORELINE 7352400 0 0 RICHMOND CO SHORELINE 5252520 0 0 RICHMOND CO SHORELINE 5402500 0 0 RICHMOND.CO SHORELINE 5402520 0 0 RICHMOND CO SHORELINE 5402540 0 0 RICHMOND CO SHORELINE 5552460 0 0 RICHMOND CO SHORELINE 5552480 0 0 RICHMOND CO SHORELINE 5552500 0 0 RICHMOND CO SHORELINE 5552520 0 0 RICHMOND CO SHORELINE 5702460 0 0 RICHMOND GO SHORELINE 5702480 0 0 RICHMOND CO SHORELINE 5852460 0 0 RICHMOND CO SHORELINE 5852480 0 0 RICHMOND CO SHORELINE 6002460 0 0 173 QUAD NAME & NUMBER MRC NSHL SED STRUCTS RICHMOND CO SHORELINE 6002480 0 0 LANCASTER CO SHORELINE 4652600 0 0 LANCASTER CO SHORELINE 4652620 0 0 LANCASTER CO SHORELINE 4652640 0 0 LANCASTER CO SHORELINE 4802560 0 0 LANCASTER CO SHORELINE 4802580 0 0 LANCASTER CO SHORELINE 4802600 0 0 LANCASTER CO SHORELINE 4802620 0 0 LANCASTER CO SHORELINE 4802640 0 0 LANCASTER CO SHORELINE 4952560 0 0 LANCASTER CO SHORELINE 4952580 0 0 LANCASTER CO SHORELINE 4952600 0 0 LANCASTER CO SHORELINE 4952620 0 0 LANCASTER CO SHORELINE 5102540 0 0 LANCASTER CO SHORELINE 5102560 0 0 LANCASTER CO SHORELINE 5102580 0 0 LANCASTER CO SHORELINE 5102600 0 0 LANCASTER CO SHORELINE 5252520 0 0 LANCASTER CO SHORELINE 5252540 0 0 LANCASTER CO SHORELINE 5252580 0 0 LANCASTER CO SHORELINE 5402520 0 0 LANCASTER CO SHORELINE 5402540 0 0 NORTHUMBERLAND CO SHORELINE 4952600 0 0 174 QUAD NAME & NUMBER MRC NSHL SED STRUCTS NORTHUMBERLAND CO SHORELINE 4952620 0 0 NORTHUMBERLAND CO SHORELINE 5102620 0 0 NORTHUMBERLAND CO SHORELINE 5252600 0 0 NORTHUMBERLAND CO SHORELINE 5252620 0 0 NORTHUMBERLAND CO SHORELINE 5252640 0 0 NORTHUMBERLAND CO SHORELINE 5402600 0 0 NORTHUMBERLAND CO SHORELINE 5402620 0 0 NORTHUMBERLAND CO SHORELINE 5402640 0 0 NORTHUMBERLAND CO SHORELINE 5552580 0 0 NORTHUMBERLAND CO SHORELINE 5552600 0 0 NORTHUMBERLAND CO SHORELINE 5552620 0 0 NORTHUMBERLAND CO SHORELINE 5552640 0 0 NORTHUMBERLAND CO SHORELINE 5702580 0 0 NORTHUMBERLAND CO SHORELINE 5702600 0 0 NORTHUMBERLAND CO SHORELINE 5702620 0 0 NORTHUMBERLAND CO SHORELINE 5702640 0 0 NORTHUMBERLAND CO SHORELINE 5852560 d 0 0 NORTHUMBERLAND CO SHORELINE 5852580 0 0 NORTHUMBERLAND CO SHORELINE 5852600 0 0 NORTHUMBERLAND CO SHORELINE 5852620 0 0 NORTHUMBERLAND CO SHORELINE 6002540 0 0 NORTHUMBERLAND CO SHORELINE 6002560 0 0 NORTHUMBERLAND CO SHORELINE 6002580 0 0 175 QUAD NAME & NUMBER MRC NSHL SED STRUCTS NORTHUMBERLAND CO SHORELINE 6002600 0 0 NORTHUMBERLAND CO SHORELINE 6152540 0 0 NORTHUMBERLAND CO SHORELINE 6152560 0 0 NORTHUMBERLAND CO SHORELINE 6152580 0 0 LEGEND *- INDICATES COVERAGES CREATED BETWEEN 3/88 AND 3/89 X- INDICATES COVERAGES CREATED FROM 3/89 TO 9/89 0- INDICATES COVERAGES COMPLETED FROM 9/89 TO 9/90 MRC-MARINE RESOURCES COMMISSION SHORELINE 1:5000 NSHL-1989 SHORELINE FROM AERIAL PHOTOGRAPHY 1:7200 SED-SEDIMENT INVENTORY STATIONS 1:24000 STRUCTS-SHORELINE STABILIZATION STRUCTURES 1:7200 176