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Home My WebLink AboutFDP201700010 Letter of Map Revision 2021-11-05Federal Register The Daily Progress FLOODING SOURCE FLOODWAY 1-PERCENT-ANNUAL-CHANCE FLOOD WATER SURFACE ELEVATION CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD88) WITHOUT FLOODWAY (FEET NAVD88) WITH FLOODWAY (FEET NAVD88) INCREASE (FEET) Flat Branch A 230 50 300 6.9 385.5 364.02 365.0 1.0 B 490 54 215 9.5 385.5 366.82 366.8 0.0 C 960 40 245 8.3 385.5 373.32 373.5 0.2 D 1,235 50 240 5.1 385.5 377.02 377.0 0.0 E 1,600 100 1,955 0.6 399.7 399.7 400.2 0.5 F 1,850 100 1,760 0.7 399.7 399.7 400.2 0.5 G 2,200 100 1,470 0.8 399.8 399.8 400.3 0.5 H 2,465 100 1,230 0.9 399.8 399.8 400.3 0.5 I 2,750 100 1,020 1.0 399.8 399.8 400.3 0.5 J 3,100 50 255 4.0 399.9 399.9 400.5 0.6 K 3,550 50 215 4.5 404.0 404.0 404.2 0.2 L 3,845 75 230 4.2 407.7 407.7 407.8 0.1 M 4,125 67 189 4.9 412.0 412.0 412.0 0.0 N 4,685 34 163 5.3 417.5 417.5 418.1 0.6 O 5,254 36 174 4.4 425.7 425.7 426.2 0.5 P 5,797 130 130 5.9 431.1 431.1 431.3 0.2 Q 6,406 167 167 4.3 440.4 440.4 440.7 0.3 1 Feet above confluence with North Fork Rivanna River 2 Elevation computed without consideration of backwater effects from the North Fork Rivanna River TABLE 5 FEDERAL EMERGENCY MANAGEMENT AGENCY ALBEMARLE COUNTY, VA AND INCORPORATED AREAS AND THE INDEPENDENT CITY OF CHARLOTTESVILLE FLOODWAY DATA FLAT BRANCH REVISED DATA REVISED TO REFLECT LOMR EFFECTIVE: November 5, 2021 380 390 400 400 410 410 420 420 430 430 440 440 450 450 460 460 470 470 2600 2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 4800 5000 5200ELEVATION IN FEET (NAVD 88)STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NORTH FORK RIVANNA RIVER FEDERAL EMERGENCY MANAGEMENT AGENCYALBEMARLE COUNTY, VAAND INCORPORATED AREAS ANDFLOOD PROFILESFLAT BRANCH09P M N LEGEND 0.2% ANNUAL CHANCE FLOOD 2% ANNUAL CHANCE FLOOD 4% ANNUAL CHANCE FLOOD* 10% ANNUAL CHANCE FLOOD STREAM BED CROSS SECTION LOCATION 1% ANNUAL CHANCE FLOOD "1%+" ANNUAL CHANCE FLOOD*UNNAMEDCULVERTI J K L THE INDEPENDENT CITY OF CHARLOTTESVILLEREVISED TO REFLECT LOMR EFFECTIVE: November 5, 2021 410 420 430 430 440 440 450 450 460 460 470 470 480 480 490 490 500 500 5200 5400 5600 5800 6000 6200 6400 6800 7000 7200 7400 7600 7800 8000ELEVATION IN FEET (NAVD 88)STREAM DISTANCE IN FEET ABOVE CONFLUENCE WITH NORTH FORK RIVANNA RIVER FLOOD PROFILESFLAT BRANCH10PLIMIT OF DETAILED STUDYO P Q LEGEND 0.2% ANNUAL CHANCE FLOOD 2% ANNUAL CHANCE FLOOD 4% ANNUAL CHANCE FLOOD* 10% ANNUAL CHANCE FLOOD STREAM BED CROSS SECTION LOCATION 1% ANNUAL CHANCE FLOOD "1%+" ANNUAL CHANCE FLOOD*FEDERAL EMERGENCY MANAGEMENT AGENCYALBEMARLE COUNTY, VAAND INCORPORATED AREAS ANDTHE INDEPENDENT CITY OF CHARLOTTESVILLEREVISED TO REFLECT LOMR EFFECTIVE: November 5, 2021 REVISED AREA 377 439 410 400 406 424 442 434 North Fork Rivanna River Flat Branch Tributary NP Flat Branch Powell Creek N P N P ZONE AE ZONE A ZO Albemarle County Unincorporated Areas 510006 ZONE AE I I J G Q PINERIDGE TOMPKINS DR TERRYBROOK DR NORTHSIDE DR V I E W F A R M CYPRESS DR SPRINGFIELD RD TIMBER CRESTFIELD CT TIMBERWOOD BLVD MEADOWFIELD LN ARBOR TER DUTCHMAN RD GIRTHA LN TIMBER MEADOWS SANDSTONE RD DEW MAW LN AIRPORT ACRES PL WHITE CEDAR LN SEQUOIA ST 29 AIRPORT ACRES RD WORTH XING FORTUNE PARK RD ARBOR CT ARBOR TRCE ARBOR LAKE DRCROSS TIMBERS RD WHISPERING WOODS DR PROFFIT RD PROFFIT RD MEADOWFIELD WAY WASHINGTON CT MADISON CT MONROE CT ADAMS CT COLONIAL DR LN 649 785 BRANCH HILL RD NORTHWOODS PARK RD 429 LIMIT OF STUDY LIMIT OF STUDY 384 0.2-PERCENT-ANNUAL- CHANCE FLOOD DISCHARGE CONTAINED IN STRUCTURE 440.4 434.6 431.1 425.7 417.5 412.0 ZONE AE 3940000 FT 3935000 FT Unnamed Culvert SCALE 0 1,000 2,000500Feet 1 inch = 1,000 feet 1:12,000 Map Projection: NAD 1983 UTM Zone 17N; Western Hemisphere; Vertical Datum: NAVD 88 0 300 600150 Meters NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP ALBEMARLE COUNTY, VIRGINIA and Incorporated Areas PANEL 145 OF 575 Panel Contains: COMMUNITY NUMBER PANEL SUFFIX MAP NUMBER EFFECTIVE DATE FEBRUARY 4, 2005 51003C0145D VERSION NUMBER 2.1.3.0 ALBEMARLE COUNTY 510006 0145 D REVISED TO REFLECT LOMR EFFECTIVE: November 5, 2021