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Home My WebLink AboutFDP202200003 Calculations 2022-03-18Albemarle County Virginia Engineering Manual For Foxwood Forestry Management Stream Crossing March 14, 2022 p��ALTHOF t G p F R. U �� Y Lic. 0.040205R79R ctSSfON AL 31 Blackwell Engineering, PLC 566 East Market St. �- Harrisonburg, VA 22801 BE # 2930 NOTES TO USERS LEGEND This map is for use in administering the National Flood Insurance Program. It ..". SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO INUNDATION BY THE 1 % ANNUAL CHANCE FLOOD does not necessarily identify all areas subject to flooding, particularly from local SWEIBYAN 93 lg° 30' 00" drainage sources of small size. The community map repository should be MECHUMS ZON X DR ZONE X HW1106 1148000 FT 38° 07' 30" The 1 % annual chance flood (100-year flood), also known as the base flood, is the flood consulted for possible updated or additional flood hazard information. P P RJR 1147500 FT JOINS PANEL 0120 ZONE X that has a 1 % chance of beingequaled or exceeded in an given year. The Special q Y g Y P 78°33'45" ZONE X 7147000 FT .. p ., •- 99 ZONE AE Flood Hazard Area is the area subject to flooding by the 1% annual chance flood. Areas To obtain more detailed information in areas where Base Flood Elevations 1146500 FT 402 .• O , ' ZONE X .. of Special Flood Hazard include Zones A, AE, AH, AO, AR, A99, V, and VE. The Base Flood Elevation is the water -surface elevation of the 1% annual chance flood. (BFEs) and/or floodways have been determined, users are encouraged to consult 38007'30" FREE ZONE AE UNION RD ZONE Xr'��( ( F' � ` � ` the Flood Profiles, FloodwayData and/or Summary of Stillwater Elevations tables d' (EL 447) HORSESHOE � O t°' 9F go aS T co ZONE A No Base Flood Elevations determined. contained within the Flood Insurance Study (FIS) report that accompanies this ZONE 443 ZONE X BEND RD o G� Gyo ZONE AE Base Flood Elevations determined. FIRM. Users should be aware that BFEs shown on the FIRM represent X R eot 0 a 0 [+ 09 o y ZONE X ZONE X ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood rounded whole —foot elevations. These BFEs are intended for flood insurance 9Q � F Elevations determined. rating purposes only and should not be used as the sole source of flood SOUTH o n 90 elevation information. Accordingly, flood elevation data presented in the FIS o 0 oa ZONE AO Flood depths of 1 to 3 feet (usual) sheet flow on sloping terrain); P Y i g report Should be utilized in conjunction with the FIRM for purposes of ¢ FORK 660 AUDUBON average depths determined. For areas of alluvial fan flooding velocities construction and/or floodplain management. ZONE ZONE v z oc9 RIVANNA G PO R Ax K also determined. X 6 AE 0 RIVER oPo ZONE X F 09O ZONE AR Special Flood Hazard Area formerly protected from the 1% annual Coastal Base Flood Elevations shown on this map apply only landward Z 4222000 m chance flood by a flood ontrol system that was subsequently of 0.0' North American Vertical Datum of 1988 (NAVD 88). Users of this 8 w r, FgRM / decertified. Zone AR indicates that the former flod control system is being restored to provide protection from the 1 % annual chance or FIRM should be aware that coastal flood elevations are also provided in the MECHUMS LL �P e ZONE X greater flood. Summary of Stillwater Elevations tables in the Flood Insurance Study report in Summary Stillwater Elevations RIVER ZONE ZONE rHOMPSON �,G�e Q 4 r` , , ZONE A99 Area tprotectioo be d from 1 by a l % annual chance FlFlood for this jurisdiction. Elevations shown the of AE HILL ZONE X nrotystem under construction; no Base Elevations flood tables should be used for construction and/or floodplain management purposes X o determined. when they are higher than the elevations shown on this FIRM. ZONE `ens ZONE X 449 X RD L '� ZONE V Coastal flood zone with velocity hazard (wave action); no Base Flood Boundaries of the floodways were computed at cross sections and interpolated 448 vy COLA ROCK N HW1105 Elevations determined. between cross sections. The floodways were based on hydraulic considerations WOODS N ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevations with regard to requirements of the National Flood Insurance Program. Floodway ZONE X 3 ZONE X determined. widths and other pertinent floodway data are provided in the Flood Insurance 3930000 FF H tcKOP Study reportfor this jurisdiction. JACKSON LN o VIEWA�LN OP Q°�5 FLOODWAY AREAS IN ZONE AE Certain areas not in Special Flood Hazard Areas may be protected by flood HW1104 cLEARview ZONE X m The floodway is the channel of a stream plus any adjacent floodplain areas that must be control structures. Refer to Section 2.4 "Flood Protection Measures" of RD CIR o keptfree of encroachment so that the 1% annual chance flood can be carried without increases in flood heights. the Flood Insurance Study report for information on flood control structures yNDS WODD PEE t substantial g in this jurisdiction. 678 ZONE Z OTHER FLOOD AREAS AE The projection used in the preparation ofthis map was Universal Transverse og2 y97 Z ZONE X Areas of 0.2% annual chance flood; areas of 1% annual chance flood Mercator (UTM) Zone The horizontal datum was NAD 83, GRS80 bemarle County �Q o with avers depths of less than 1 foot or with drainage areas less than % spheroid. Differences in datum, spheroid, projection or UTM zones used in d o� Qo WOOD ANDS 1 square mile; and areas protected by levees from 1 annual chance the production of FIRMS for adjacent jurisdictions may result in slight positional o HWO927 4221000m flood. differences in map features across jurisdiction boundaries. These differences unnicorporated Areas do not affect the accuracy of this FIRM. � ONE OTHER AREAS S10006 LAWRENCE O00 X Flood elevations on this map are referenced to the North American Vertical RD �9,y0 ZONE x Areas determined to be outside the 0.2% annual chance floodplain. Datum of 1988. These flood elevations must be compared to structure and o m ZONED Areas in which Flood hazards are undetermined, but possible. ground elevations referenced to the same vertical datum . For information �? o P regarding conversion between the National Geodetic Vertical Datum of 1929 D and the North American Vertical Datum of 1988, visit the National Geodetic P�` RO 676 ® COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS Survey website at http://www.ngs.noaa.gov or contact the National Geodetic Survey at the following address: 3 FQe HO Lv ZONE KNOLL LN \ OTHERWISE PROTECTED AREAS (OPAs) PH 601 O \\ Spatial Reference System Division OpV ZONE X AE National Geodetic Survey, NOAA 4' Jum in CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas. Silver Spring Metro Center �° el �'4t?pi W 457 Branch Floodplain boundary 1315 East-West Highway eo ZONE X v Silver Spring, Maryland 20910 0� ' N o -- Floodway boundary (301) 713-3191 �o° GqR� O 6 — — Zone D boundary To obtain current elevation, description, and/or location information for bench marks HW0926 8r \l arc 436 422 ,,•............•,,,• CBRS and OPA boundary shown on this map, please contact the Information Services Branch of the Q = eholl �{ 6� �L O O e Boundary dividing Special Flood Hazard Area Zones and National Geodetic Survey at (301) 713-3242, Or visit their website at RD boundary dividi ng Special Flood Hazard Areas of different http: // www. n g s. n oa a. g ov. 3925000 FT 422000° mBase Flod Elevations, flood depths or flood velocities. Base map information shown on this FIRM was provided in digital format by ? T CHESTNUT ing v6 p0� P 513 Base Flood Elevation line and value; elevation in feet* Albemarle County Department of Planning & Community Development. This Y ,r ¢ RIDGE dump 0 (EL 987) Base Flood Elevation value where uniform within zone; nfo'rmation was photogram metrically compiled at a scale of 1:4,800 from aerial i O 3g elevation in feet* photography dated March 2000. v� 0 473 BARRACKS FgRM b• P Q *Referenced to the North American Vertical Datum of 1988 This map reflects more detailed and up-to-date stream channel configurations o 48 ZONE AE RD o NY Cross section line than those shown on the previous FIRM for this jurisdiction. The floodplains G ZONE AE REEK U�J and floodways that were transferred from the previous FIRM may have been c oP ZONE X Q 29 - Y3 Transact line adjusted to conform to these new stream channel configurations. As a ry �� LIMIT OF O ZONE X 5, M result, the Flood Profiles and Floodway Data tables in the Flood Insurance Study y �o DETAILED STUDY 91.O1'30", 32.22'30" Geographic coordinates referenced to the North American Report (which contain authoritative hydaulic data) may reflect stream channel 0� 6 here Datum of 1983 (NAD 83), Western Hemisphere distances that differ from What is shown on this map. 90 4276000 m 1000-meter Universal Transverse Mercator grid values, zone 17 ZONE Corporate limits shown on this ma are based on the best data available P P 10 'o 90 3 U X 600000 FT 5000 foot grid tacks: Virginia State Plane coordinate system, south zone (FIPSZONE 4502), Lambert Conformal Conic projection at the time of publication. Because changes due to annexations or de -annexations c GPP 1N GAT E 6 may have occurred after this map was published, map users should contact LN GARTHFIELD DX5510 X Bench mark (see explanation in Notes to Users section of appropriate community officials to verify current corporate limit locations. Z LN `9c' this FIRM panel) 9%� • M1.5 River Mile Please refer to the separately printed Map Index for an overview map of theto county showing the layout of map panels; community map repository addresses; Z FARM RD 658 PO and a Listing of Communities table containing National Flood Insurance Program 4219000m MAP REPOSITORY dates for each community as well as a listing of the panels on which each PPCKS h Refer to listing of Map Repositories on Map Index community is located. PPP �� FE FM eqy R4C'f3` Contact the FERIA Bap Service Center at 1 800��for information on ZONE X z �7�G o C yl EFFECTIVE DATE OF COUNTYWIDE58616 FLOOD INSURANCE RATE MAP available products associated with this FIRM. Available products may include e z oq February a, 2005 previously issued Letters of Map Change, a Flood Insurance Study report, y 9 > and/or digital versions of this map. The FEMA Map Service Center may also be CATLIN w EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL reached by Fax at 1-800-358-9620 and their website at http://www.msc.fema.gov. a o �° ZONE X �9 LYNNWOOD 90 LL s LN If you have questions about this map or questions concerning the National N Flood Insurance Program in general, please call 1.877-FEMA BAP (1-877-336-2627) o '� or visit the FEMA website at http://www.fema.gov. 3920000 FT GARTH iPSWiCN HOUSE��, Z7 99`y o p A� ZONE X (y �Q'� 2ie� e For community map revision history prior to countywide mapping, refer to the Community LN y 398 O� Map History table located in the Flood Insurance Study report for this jurisdiction. ¢ Qo To determine if flood insurance is available in this community, contact your insurance PRIVATE 90 agent or call the National Flood Insurance Program at 1-800-638-6620. OAKENCROFT HM017 X HW1018 X ZONE CIR HW1016 X , RUSTLING Ogles400 4218000 m MAP SCALE 1" = 1000' LN ENCPOfS O� :_ , 407 0 ¢ 500 0 1000 2000 1 UIWNG LANE -', a Ob -._ Q�1 FEET G9RT � • P METERS ZONE H h�� 40 300 0 Soo 600 A P�` ZONE X BEAU -PRE RD ZONE �b ZONE X M v, 00 YELLOW wooD DR , m VN G�So <ti X Q/3 2 g 00 m PANEL 0260D _ � � 657 FOP 3 O NG<�CRess J LL ZONE X z �y5 HW1015 00 ZONE X �� sm `� 425 o Z LN � FIRM w �ox DR ZONE cgs z GREEN p Fp m = o°= AE �" O FLOOD INSURANCE RATE MAP BEECH DR h'O O= ZONE X ? INGLECRESS INGLESIDE DR "ILL OR o = O d ® ALBEMARLE COUNTY, VIRGINIA GOLDE ZONE 45 W ZONE CHAIN N CORKTREE AE $ N a X n AND INCORPORATED AREAS LN y HW1014 4217000m POTAND THE INDEPENDENT CITY 432 3915000 FT ,� qp5: A OF CHARLOTTESVILLE F 9q � H�<LS Q,O ZONE X 455 � " ��o. 433 eqR P INGLERIDGE PANEL 260 OF 575 7i 444 ZONE X RgCks 1 ZONE S ° OLD (SEE MAP INDEX FOR FIRM PANEL LAYOUT) X IVY GARTH HTS BD TF9 4F! GEORGETOWN GRINCONTAINS: CREEK ZONE ° .p_k.K ZONE IVl 09 �- O eo COMMUNITY NUMBER PANEL SUFFIX ✓ X ZONE A X CREEK N MAGNOLIA c m ¢ 457 DIRT 2 ZONE 654 9,9 ALBEMARLE COUNTY 510006 0260 D ROAD ZO 4\ X ' ZONE A ° F t BARCLAY PLACE CT v� �o ZONE X d� 'FAIRWAY G LN ¢ y a` 6 10 2� TERRELL 9p Q 2 CT t,V OQO CO 9rA O c, OO F O �-Qy O STURBRIDGE BILTMORE `9O °' �° °O �tn REYNARD c,° 2 ODD DR FORGE BENNINGTON RD CLUJ P OLDGARTH DR kp �° RD ZONE X \ oo N RD CANNON r2 V O TURNING FPPM7NG10 O WHETSTONE ENNINGTON RD 0o LANE PL SOLOMON 4216000 nn RD Notice to User: The map Number shown below should be used TEE r� LLY " R DR ZONE X GEORGET WN z o o N C� Oa O OP GREEN TREEN W NGLEWOOD1U1 DR when placing map orders; the Community Number shown abovecommshould be used on insurance applications for the subject c 9F,RRpO COUN7Ry � PARK DRNE SUM O� w o HESSIAN ¢ m O p w ¢ F,F °O� 0P e- K /( �J FARMINGTON L CLUB 60, O 0�0¢ HILLS WAY a RO/ MAP NUMBER oq 90 °'� I O N OLD COUNTRY MILL RD C1VgL,F R DP BARRACKS RD J�Q� w 3 8GUS 3 RO 38003' 45" d �4A'R` 51003CO2600 r 0Q CLUB CIR .n .t SUNSET CIR JOINS PANEL 0267 718000m N 719°00M HUNTWOOD HILLS LN HILLS CIR BENNINGTON 78°30'00" EFFECTIVE DATE 38*03' 45" ti JOINS PANEL 0266 7160D3NI 717000m RD NO SS%C'� FEBRUARY 4, 2005 715o0om 78.33' 45'714000m Federal Emergency Management Agency National Flood Hazard Layer FIRMette ; FEMA Legend v,vvv � 250 500 1,000 1,500 2,000 Basemap: USGS National Map: Orthoimagery: Data refreshed October, 2020 SEE FIS REPORT MR DEFAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Without Base Flood Elevation (BFE) Zone A, V, A99 SPECIAL FLOOD With BFE or Depth Zone AE, AG, AN, VE, AN HAZARD AREAS Regulatory Floodway ' 0.2%Annual Chance Flood Hazard, Areas of 1%annual chance flood with average depth less than one foot or with drainage areas of less than one square mile zone x Future Conditions 1%Annual Chance Flood Hazard zonex r � Area with Reduced Flood Risk due to OTHER AREAS OF Laves. See Notes. zonex FLOOD HAZARD — Area with Flood Risk due to Levee Zone D NO SCREEN Area of Minimal Flood Hazard zonex Q Effective LOMRs OTHER AREAS Area of Undetermined Flood Hazard Zoned GENERAL Channel, Culvert, or Storm Sewer STRUCTURES IIIIIII Levee, Dike, or Floodwall e zO'z Crass Sections with l%Annual Chance ras Water Surface Elevation - - - Coastal Transact ---I,,— Base Flood Elevation Line (BFE) Limit of Study Jurisdiction Boundary - — --- Coastal Transact Baseline OTHER Profile Baseline FEATURES Hydrogmphic Feature Digital Data Available N No Digital Data Available MAP PANELS Unmapped The pin displayed on the map is an approximate point selected by the user and does not represent an authoritative property location. This map complies with FEMA's standards for the use of digital flood maps if it is not void as described below. The basemap shown complies with FEMA's basemap accuracy standards The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA. This map was exported on 2/18/2022 at 4:37 PM and does not reflect changes or amendments subsequent to this date and time. The NFHL and effective information may change or become superseded by new data over time. This map image is void it the one or more of the following map elements do not appear: basemap imagery, flood zone labels, legend, scale bar, map creation dale, community identifiers, FIRM panel number, and FIRM effective date. Map images for unmapped and unmodernized areas cannot be used for regulatory purposes. sh r Wildlife National Wetlands Inventor January 18, 2022 Wetlands ❑ ❑ Estuarine and Marine Deepwater ❑ ❑ Estuarine and Marine Wetland ❑ Wetlands This map is for general reference only. The US Fish and wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should Freshwater Emergent Wetland Lake be used in accordance with the layer metadata found on the Wetlands Mapper web site. Freshwater Forested/Shrub Wetland ❑ Other Freshwater Pond ❑ Riverine National Mtlard s inwntory (NWI) This page was produced by Me N l mapper StreamStats Report Region ID: VA Workspace ID: VA20220221193659316000 Clicked Point (Latitude, Longitude): 38.0669 5, -78.54660 Time: 2022-02-21 14:37:24 -0500 Basin Characteristics Parameter Code Parameter Description Value Unit DRNAREA Area that drains to a point on a stream 0.84 square miles Peak -Flow Statistics Parameters [Blue Ridge 2011 5144] Parameter Code Parameter Name Value Units Min Limit Max Limit DRNAREA Drainage Area 0.84 square miles 0.06 7866 Peak -Flow Statistics Flow Report [Blue Ridge 2011 5144] PH: Prediction Interval -Lower, Plu: Prediction Interval -Upper, ASEp: Average Standard Error of Prediction, SE: Standard Error (other -- see report) Statistic Value Unit ASEp 50-percent AEP flood 118 ft^3/s 17 42.9-percent AEP flood 142 ft^3/s 18 20-percent AEP flood 275 ft^3/s 20 10-percent AEP flood 437 ft^3/s 24 4-percent AEP flood 700 ft^3/s 29 2-percent AEP flood 962 ft^3/s 32 1-percent AEP flood 1380 ft^3/s 30 0.5-percent AEP flood 1750 ft^3/s 33 Peak -Flow Statistics Citations Austin, S.H., Krstolic, J.L., and Wiegand, Ute,2011, Peak -flow characteristics of Virginia streams: U.S. Geological Survey Scientific Investigations Report 2011-5144, 106 p. + 3 tables and 2 appendixes on CD. (http://pubs.usgs.gov/sir/2011/5144/) USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS). Although the software has been subjected to rigorous review, the USGS reserves the right to update the software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use. USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Application Version: 4.7.0 StreamStats Services Version: 1.2.22 NSS Services Version: 2.1.2 Bridge Beam 1 of 4 BeamChek ✓2020licensed to: Blackwell Engineering, PLC Reg # 6181-66221 16' Bridge 1 of 4 Prepared by: TBF Date: 3/02/22 Selection W 12x 40 50 ksi Wide Flange Steel Lateral Support: Lc = 7.2 ft max. Conditions Actual Size is 8 x 12 in. Min Bearing Length R1= 1.3 in. R2= 1.3 in. (1.0) DL Defl= 0.07 in Recom Camber-- 0.10 in Data Attributes Actual Critical Status Ratio Values Adjustments Beam Span 16.0 ft Reaction 1 LL 9480 # Reaction 2 LL 9480 # Beam Wt per ft 40.0 # Reaction 1 TL 12680 # Reaction 2 TL 12680 # Bm Wt Included 640 # Maximum V 12680 # Max Moment 707201 Max V (Reduced) N/A TL Max Defl L / 240 TL Actual Defl L / 601 LL Max Defl L / 360 LL Actual Defl L / 755 Section (in) Shear (in) TL Defl (in) LL Defl 51.90 3.52 0.32 0.25 25.72 0.63 0.80 0.53 OK OK OK OK 50% 18% 40% 48% Fb (psi) FV (psi) E (psi x mil) Ref. Value Fy Adjusted Values 50000 33000 50000 29.0 20000 29.0 YP Factor, Lc 0.66 0.40 At Point Loads: Provide these minimum bearing lengths in inches or provide web stiffeners. B = 1.3 Loads Uniform LL: 560 Uniform TL: 920 =A Point LL Point TL Distance 10000 B = 10000 8.0 Uniform Load A Pt loads: 0 0 R1 = 12680 R2 = 12680 SPAN = 16 FT Uniform and partial uniform loads are Ibs per lineal ft. Notes LL = 100 psf x 1.4 + DL = 75 psf ( 2" corrugated metal deck with 5" of concrete above top rib ) x 1.2 + Point load at mid -span = 10 kips