DOCSLIB.ORG

Flood Insurance Study

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Flood Insurance Study FLOOD INSURANCE STUDY ARLINGTON COUNTY, VIRGINIA AND INCORPORATED AREAS COMMUNITY COMMUNITY NAME NUMBER Arlington ARLINGTON COUNTY County (UNINCORPORATED AREAS) 515520 Federal Emergency Management Agency FLOOD INSURANCE STUDY NUMBER 51013CV000A NOTICE TO FLOOD INSURANCE STUDY USERS Communities participating in the National Flood Insurance Program have established repositories of flood hazard data for floodplain management and flood insurance purposes. This Flood Insurance Study (FIS) may not contain all data available within the repository. It is advisable to contact the community repository for any additional data. Part or all of this FIS may be revised and republished at any time. In addition, part of this FIS may be revised by the Letter of Map Revision process, which does not involve republication or redistribution of the FIS. It is, therefore, the responsibility of the user to consult with community officials and to check the community repository to obtain the most current FIS components. Selected Flood Insurance Rate Map Panels for this community contain information that was previously shown separately on the corresponding Flood Boundary and Floodway Map panels (e.g. floodways, cross-sections). In addition, former flood hazard zones designations have been changed as follows: Old Zones New Zones A1 through A30 AE B X C X Initial Countywide FIS Effective Date: [TBD] TABLE OF CONTENTS Page 1.0 INTRODUCTION 1 1.1 Purpose of Study 1 1.2 Authority and Acknowledgments 1 1.3 Coordination 2 2.0 AREA STUDIED 3 2.1 Scope of Study 3 2.2 Community Description 5 2.3 Principal Flood Problems 6 2.4 Flood Protection Measures 8 3.0 ENGINEERING METHODS 8 3.1 Hydrologic Analyses 8 3.2 Hydraulic Analyses 11 3.3 Vertical Datum 14 4.0 FLOODPLAIN MANAGEMENT APPLICATIONS 15 4.1 Floodplain Boundaries 15 4.2 Floodways 15 5.0 INSURANCE APPLICATIONS 25 6.0 FLOOD INSURANCE RATE MAP 25 7.0 OTHER STUDIES 26 8.0 LOCATION OF DATA 26 9.0 BIBLIOGRAPHY AND REFERENCES 26 i TABLE OF CONTENTS – continued Page FIGURES Figure 1 - Floodway Schematic 17 TABLES Table 1 - Flooding Sources Studied by Detailed Methods 3 Table 2 - Stream Name Changes 4 Table 3 - Letters of Map Revision 4 Table 4 - Summary of Discharges 9-10 Table 5 – Hydraulic Capacity Analysis 12 Table 6 - Manning's "n" Values 13 Table 7 - Floodway Data 18-24 Table 8 - Community Map History 27 EXHIBITS Exhibit 1 - Flood Profiles Doctors Branch Panels 01P – 02P Donaldson Run Panels 03P – 04P Four Mile Run Panels 05P – 12P Gulf Branch Panels 13P – 14P Little Pimmit Run Panels 15P – 16P Little Pimmit Run Tributary Panels 17P – 18P Lower Long Branch Panels 19P – 20P Lubber Run Panels 21P – 22P North Branch Donaldson Run Panel 23P Potomac River Panels 24P – 27P Spout Run Panel 28P Upper Long Branch Panel 29P Windy Run Panel 30P Exhibit 2 - Flood Insurance Rate Map Index Flood Insurance Rate Map ii FLOOD INSURANCE STUDY ARLINGTON COUNTY, VIRGINIA AND INCORPORATED AREAS 1.0 INTRODUCTION 1.1 Purpose of Study This countywide Flood Insurance Study (FIS) investigates the existence and severity of flood hazards in, or revises and updates previous FIS’s / Flood Insurance Rate Maps (FIRMs) in the geographic area of Arlington County, Virginia, and aids in the administration of the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. This FIS has developed flood-risk data for various areas of the community that will be used to establish actuarial flood insurance rates. This information will also be used by Arlington County to update existing floodplain regulations as part of the Regular Phase of the National Flood Insurance Program (NFIP), and will also be used by local and regional planners to further promote sound land use and floodplain development. Minimum floodplain management requirements for participation in the NFIP are set forth in the Code of Federal Regulations at 44 CFR, 60.3. In some states or communities, floodplain management criteria or regulations may exist that are more restrictive or comprehensive than the minimum Federal requirements. In such cases, the more restrictive criteria take precedence, and the State (or other jurisdictional agency) shall be able to explain them. 1.2 Authority and Acknowledgments The sources of authority for this FIS are the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. This FIS was prepared to include the unincorporated areas of Arlington County in a countywide format. Information on the authority and acknowledgments for each jurisdiction included in this countywide FIS, as compiled from their previously printed FIS reports, is shown below. Arlington County: The hydrologic and hydraulic analyses from the FIS report dated November 3, 1981, were performed by the U. S. Army Corps of Engineers (USACE) for the Federal Emergency Management Agency (FEMA), under Inter- Agency Agreement No. IAA-H-7-66, Project Order No. 29. This work was completed in April 1980. For this FIS revision, the hydrologic and hydraulic analysis for the Potomac River was taken from the FIS for Washington D.C, effective _________. Previously, the flooding effects from the Potomac River were not included in the Arlington County FIS and FIRM. A revised analysis for the Potomac River 1% annual chance tidal elevation was performed for FEMA by USACE under Contract No. HSFE03-04-X- 0016. This work was completed in August 2008. For all other detailed studies in 1 Arlington County, AMEC Earth & Environmental, Inc. used the existing hydraulic analyses for Arlington County to redelineate floodplains based on more detailed and up-to-date topographic information. Culvert capacities were also evaluated in select areas to determine whether floodplain reduction or removal was justified where previous open channels had been piped. This work was done under Contract No. FS-2001-EMP-2001-RP-2411, and was completed in April 2006. The extents of these analyses are listed in Section 2.0 of this report. Planimetric base map information for all FIRM panels was provided in digital format by the Arlington County’s GIS Mapping Center. This information was photogrammetrically compiled at a scale of 1’’=50’ from aerial photography dated September 2003. Digital orthophotographs, published in 2003, were also provided by the Arlington County’s GIS Mapping Center. Users of this FIRM should be aware that minor adjustments may have been made to specific base map features to align them to 1":120’ digital orthophotographs. The coordinate system used for the production of this FIRM is Universal Transverse Mercator (UTM), Zone 18 North, North American Datum of 1983 (NAD 83), GRS 80 spheroid. Corner coordinates shown on the FIRM are in latitude and longitude referenced to the UTM projection, NAD 83. Differences in the datum and spheroid used in the production of FIRMs for adjacent counties may result in slight positional differences in map features at the county boundaries. These differences do not affect the accuracy of information shown on the FIRM. 1.3 Coordination Consultation and Coordination Officer’s (CCO) meetings may be held for each jurisdiction in this countywide FIS. An initial CCO meeting is held typically with representatives of FEMA, the community, and the study contractor to explain the nature and purpose of a FIS, and to identify the streams to be studied by detailed methods. A final CCO meeting is held typically with representatives of FEMA, the community, and the study contractor to review the results of the study. Two initial CCO meetings were held in July and December 1975. These meetings were attended by representatives of FEMA, USACE (the study contractor), and county officials. The study was also coordinated with the Arlington County Department of Transportation, the Northern Virginia Planning District Commission, and the U.S. Geological Survey (USGS) to gather background information and obtain other data. On June 30, 1981, the results of the study were reviewed at the final CCO meeting attended by representatives of the study contractor, FEMA, and county officials. For this countywide FIS, an initial CCO meeting was held May 26, 2004. This meeting was attended by representatives of FEMA, the study contractors, and Arlington County. A final CCO meeting was held on _________ to discuss the results of this study. This meeting was attended by representatives from FEMA, the study contractors, and Arlington County. 2 2.0 AREA STUDIED 2.1 Scope of Study This FIS covers the geographic area of Arlington County, Virginia. All or portions of the flooding sources listed in Table 1, "Flooding Sources Studied by Detailed Methods," were studied by detailed methods. Limits of detailed study are indicated on the Flood Profiles (Exhibit 1) and on the FIRM (Exhibit 2). TABLE 1 - FLOODING SOURCES STUDIED BY DETAILED METHODS Stream Length of Study Doctors Branch From its confluence with Four Mile Run to approximately 1950 feet upstream Donaldson Run From its confluence with the Potomac River to approximately 8100 feet upstream Four Mile Run From its confluence with the Potomac River to approximately 44,600 feet upstream Gulf Branch From its confluence with the Potomac River to approximately 6850 feet upstream Little Pimmitt Run From the Arlington County boundary to approximately 5150 feet upstream Little Pimmitt Run Tributary From its confluence with Little Pimmitt Run to approximately 1350 feet upstream Lower Long Branch From its confluence with Four Mile Run to approximately 10,000 feet upstream Lubber Run From its confluence with Four Mile Run to approximately 8550 feet upstream North Branch Donaldson Run From approximately 5000 feet above the confluence of Donaldson Run with the Potomac River to approximately 2550 feet upstream Potomac River The entire length along the Arlington County boundary Spout Run From its confluence with the Potomac River to approximately 5800 feet upstream Upper Long Branch From its confluence with Four Mile Run to approximately 3850 feet upstream Windy Run From its confluence with the Potomac River to approximately 3300 feet upstream As noted in Section 1.2 of this FIS, hydrologic and hydraulic analysis for the Potomac River was taken from the FIS for Washington D.C, effective _________.
Load more

Recommended publications
  • Authorization to Discharge Under the Virginia Stormwater Management Program and the Virginia Stormwater Management Act
    COMMONWEALTHof VIRGINIA DEPARTMENTOFENVIRONMENTAL QUALITY Permit No.: VA0088587 Effective Date: April 1, 2015 Expiration Date: March 31, 2020 AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT Pursuant to the Clean Water Act as amended and the Virginia Stormwater Management Act and regulations adopted pursuant thereto, the following owner is authorized to discharge in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in this state permit. Permittee: Fairfax County Facility Name: Fairfax County Municipal Separate Storm Sewer System County Location: Fairfax County is 413.15 square miles in area and is bordered by the Potomac River to the East, the city of Alexandria and the county of Arlington to the North, the county of Loudoun to the West, and the county of Prince William to the South. The owner is authorized to discharge from municipal-owned storm sewer outfalls to the surface waters in the following watersheds: Watersheds: Stormwater from Fairfax County discharges into twenty-two 6lh order hydrologic units: Horsepen Run (PL18), Sugarland Run (PL21), Difficult Run (PL22), Potomac River- Nichols Run-Scott Run (PL23), Potomac River-Pimmit Run (PL24), Potomac River- Fourmile Run (PL25), Cameron Run (PL26), Dogue Creek (PL27), Potomac River-Little Hunting Creek (PL28), Pohick Creek (PL29), Accotink Creek (PL30),(Upper Bull Run (PL42), Middle Bull Run (PL44), Cub Run (PL45), Lower Bull Run (PL46), Occoquan River/Occoquan Reservoir (PL47), Occoquan River-Belmont Bay (PL48), Potomac River- Occoquan Bay (PL50) There are 15 major streams: Accotink Creek, Bull Run, Cameron Run (Hunting Creek), Cub Run, Difficult Run, Dogue Creek, Four Mile Run, Horsepen Run, Little Hunting Creek, Little Rocky Run, Occoquan Receiving Streams: River, Pimmit run, Pohick creek, Popes Head Creek, Sugarland Run, and various other minor streams.
    [Show full text]
  • Corridor Analysis for the Potomac Heritage National Scenic Trail in Northern Virginia
    Corridor Analysis For The Potomac Heritage National Scenic Trail In Northern Virginia June 2011 Acknowledgements The Northern Virginia Regional Commission (NVRC) wishes to acknowledge the following individuals for their contributions to this report: Don Briggs, Superintendent of the Potomac Heritage National Scenic Trail for the National Park Service; Liz Cronauer, Fairfax County Park Authority; Mike DePue, Prince William Park Authority; Bill Ference, City of Leesburg Park Director; Yon Lambert, City of Alexandria Department of Transportation; Ursula Lemanski, Rivers, Trails and Conservation Assistance Program for the National Park Service; Mark Novak, Loudoun County Park Authority; Patti Pakkala, Prince William County Park Authority; Kate Rudacille, Northern Virginia Regional Park Authority; Jennifer Wampler, Virginia Department of Conservation and Recreation; and Greg Weiler, U.S. Fish and Wildlife Service. The report is an NVRC staff product, supported with funds provided through a cooperative agreement with the National Capital Region National Park Service. Any assessments, conclusions, or recommendations contained in this report represent the results of the NVRC staff’s technical investigation and do not represent policy positions of the Northern Virginia Regional Commission unless so stated in an adopted resolution of said Commission. The views expressed in this document are those of the authors and do not necessarily reflect the views of the jurisdictions, the National Park Service, or any of its sub agencies. Funding for this report was through a cooperative agreement with The National Park Service Report prepared by: Debbie Spiliotopoulos, Senior Environmental Planner Northern Virginia Regional Commission with assistance from Samantha Kinzer, Environmental Planner The Northern Virginia Regional Commission 3060 Williams Drive, Suite 510 Fairfax, VA 22031 703.642.0700 www.novaregion.org Page 2 Northern Virginia Regional Commission As of May 2011 Chairman Hon.
    [Show full text]
  • Arlington County, Virginia (All Jurisdictions)
    VOLUME 1 OF 1 ARLINGTON COUNTY, VIRGINIA (ALL JURISDICTIONS) COMMUNITY NAME COMMUNITY NUMBER ARLINGTON COUNTY, 515520 UNINCORPORATED AREAS PRELIMINARY 9/18/2020 REVISED: TBD FLOOD INSURANCE STUDY NUMBER 51013CV000B Version Number 2.6.4.6 TABLE OF CONTENTS Volume 1 Page SECTION 1.0 – INTRODUCTION 1 1.1 The National Flood Insurance Program 1 1.2 Purpose of this Flood Insurance Study Report 2 1.3 Jurisdictions Included in the Flood Insurance Study Project 2 1.4 Considerations for using this Flood Insurance Study Report 2 SECTION 2.0 – FLOODPLAIN MANAGEMENT APPLICATIONS 13 2.1 Floodplain Boundaries 13 2.2 Floodways 17 2.3 Base Flood Elevations 18 2.4 Non-Encroachment Zones 19 2.5 Coastal Flood Hazard Areas 19 2.5.1 Water Elevations and the Effects of Waves 19 2.5.2 Floodplain Boundaries and BFEs for Coastal Areas 21 2.5.3 Coastal High Hazard Areas 21 2.5.4 Limit of Moderate Wave Action 22 SECTION 3.0 – INSURANCE APPLICATIONS 22 3.1 National Flood Insurance Program Insurance Zones 22 SECTION 4.0 – AREA STUDIED 22 4.1 Basin Description 22 4.2 Principal Flood Problems 23 4.3 Non-Levee Flood Protection Measures 24 4.4 Levees 24 SECTION 5.0 – ENGINEERING METHODS 27 5.1 Hydrologic Analyses 27 5.2 Hydraulic Analyses 32 5.3 Coastal Analyses 37 5.3.1 Total Stillwater Elevations 38 5.3.2 Waves 38 5.3.3 Coastal Erosion 38 5.3.4 Wave Hazard Analyses 38 5.4 Alluvial Fan Analyses 39 SECTION 6.0 – MAPPING METHODS 39 6.1 Vertical and Horizontal Control 39 6.2 Base Map 40 6.3 Floodplain and Floodway Delineation 41 6.4 Coastal Flood Hazard Mapping 51 6.5 FIRM
    [Show full text]
  • Discover the Potomac Gorge
    Discover the Potomac Gorge: A National Treasure n the outskirts of Washington, D.C., O the Potomac River passes through a landscape of surprising beauty and ecological significance. Here, over many millennia, an unusual combination of natural forces has produced a unique corridor known as the Potomac Gorge. This 15-mile river stretch is one of the country’s most biologically diverse areas, home to more than 1,400 plant species. Scientists have identified at least 30 distinct natural vegetation communities, several of which are globally rare and imperiled. The Gorge also supports a rich array of animal life, from rare invertebrates to the bald eagle and fish like the American shad. g g n n In total, the Potomac Gorge provides habitat to i i m m e e l l F F more than 200 rare plant species and natural . P P y y r r communities, making it one of the most important a a G G © © natural areas in the eastern United States. The heart of the Potomac Gorge is also known as Mather Gorge, named This riverside prairie at Great Falls, Virginia, results from periodic river flooding, after Stephen T. Mather, first director of the National Park Service. a natural disturbance that creates and sustains rare habitats. g g g n n n i i i e n m m m e r y e e e l l l a e l F F F P C . y e P P P e L y y y v f r r r r f a a a a e G G H G J © © © © © Flowering dogwood, a native forest understory species in our Specially adapted to withstand river The Potomac Gorge is home to Clinging precariously to the cliff’s edge, Brightly colored in its immature form, a reptile known as the region, is being decimated by an introduced fungal disease.
    [Show full text]
  • 46 Pola Negri in 1927
    Courtesy LofC, Prints & Photo Div, LC-DIG-ggbain-37938 Pola Negri in 1927 46 ARLINGTON HISTORICAL MAGAZINE Pola Negri Slept Here? Unraveling the Mystery of a Screen Siren's Stay in Arlington BY JENNIFER SALE CRANE With Arlington having few Hollywood connections to boast of, save For­ rest Tucker, Warren Beatty, Shirley MacLaine, and Sandra Bullock, the story about a modest stone bungalow nestled in the Gulf Branch stream valley off of Military Road is curious indeed. According to a long-held local legend, silent film star Pola Negri once stayed there. Local accounts have varied- some say the house was rented by Negri as her "Virginia hideaway," others think it was built as Negri and Rudolph Valen­ tino's love nest, and played host to Hollywood-style pool parties. The cozy bungalow at 3608 N. Military Road, 1 with quite a few additions and alterations, is now home to the Gulf Branch Nature Center, established in 1966 and operated by Arlington County Department of Parks, Recreation and Cultural Resources. The swimming pool, filled in and planted with a garden, can still be identified by the exposed segments of its curved concrete walls. The Nature Center's connection to the early Hollywood star was investi­ gated in the 1970s by ComeliaB. Rose, Jr., a founding member of the Arlington Historical Society. Rose's documentation leaves a few questions unanswered. But despite the lack of unequivocal primary source evidence, the story of Pola egri and the Gulf Branch Nature Center has become an important part of the oral tradition of Arlington County.
    [Show full text]
  • Natural Resources Management Plan Background…
    ARLINGTON COUNTY NATURAL HERITAGE RESOURCE INVENTORY AND NATURAL RESOURCES MANAGEMENT PLAN BACKGROUND… PUBLIC SPACES MASTER PLAN (2005) “CREATE A NATURAL RESOURCE INVENTORY AND TO DEVELOP A MANAGEMENT STRATEGY FOR NATURAL RESOURCE PROTECTION” • Bring together various plans & practices to protect the County’s natural resources. • Develop a classification system of the various types of natural resources. • Define lines of authority & responsibilities among various agencies. • Create an additional GIS Layer to identify significant natural resources. NATURAL HERITAGE RESOURCE INVENTORY: LAYING THE GROUNDWORK…2005-2008 ARLINGTON’S FIRST COMPREHENSIVE NATURAL RESOURCE INVENTORY…. Partnership development… PROJECT ELEMENTS: WATER RESOURCES GEOLOGY NATIVE FLORA TREE RESOURCES INVASIVE PLANTS URBAN WILDLIFE GIS WATER RESOURCES… SPRINGS AND SEEPS STREAM MAPPING WETLANDS CONSTRUCTED WETLANDS GEOLOGICAL FEATURES… SCENIC WATERFALLS OUTCROPS HIGH VALUE EXPOSURES HISTORIC QUARRIES NATIVE FLORA… LOCALLY-RARE PLANTS NATIVE FLORA STATE-RARE PLANTS SPECIMEN PREPARATION NATIVE PLANT COMMUNITIES & TREE RESOURCES… CHAMPION TREES SIGNIFICANT TREES FOREST TYPES PLANT COMMUNITIES INVASIVE PLANTS… 500 acres of parkland mapped… GOOSEBERRY FIVE-LEAVED AKEBIA ENGLISH IVY “Invasive plants represent the greatest current threat to the natural succession of local native forests in Arlington County” URBAN WILDLIFE: LEPIDOPTERA AVIFAUNA AMPHIBIANS ODONATA REPTILES MAMMALS GEOGRAPHIC INFORMATION SYSTEM (GIS) … Mapping Examples: Native Plant Communities Donaldson Run Park
    [Show full text]
  • Mills and Mill Sites in Fairfax County, Virginia and Washington, Dc
    Grist Mills of Fairfax County and Washington, DC MILLS AND MILL SITES IN FAIRFAX COUNTY, VIRGINIA AND WASHINGTON, DC Marjorie Lundegard Friends of Colvin Run Mill August 10, 2009 ACKNOWLEDGMENTS Most of the research for this catalogue of mills of Fairfax County was obtained from the owners, staff members, or neighbors of these mills. I want to thank all these persons who helped in the assembling of the history of these mills. Resource information was also acquired from: the library at the National Park at Great Falls, Virginia; the book, COLVIN RUN MILL, by Ross D. Nether ton; brochures from the Fairfax County Park Authority; and from the staff and Friends of Peirce Mill in the District of Columbia. Significant information on the mill sites in Fairfax County was obtained from the Historic American Building Survey (HABS/HAER) reports that were made in 1936 and are available from the Library of Congress. I want to give special thanks to my husband, Robert Lundegard, who encouraged me to complete this survey. He also did the word processing to assemble the reports and pictures in book form. He designed the attractive cover page and many other features of the book. It is hoped that you will receive as much enjoyment from the reading of the booklet as I had in preparing it for publication. 0 Grist Mills of Fairfax County and Washington, DC Contents ACKNOWLEDGMENTS ......................................................................................................................... 0 GRIST MILLS of FAIRFAX COUNTY and WASHINGTON, DC .............................................................
    [Show full text]
  • Guide to Trail Management
    Appendix D Additional Reference Material Appendix D contains the following reference documents that relate to the Park Authority’s Guide to Trail Management • FCPA Policy 101.3­ Greenways, Including Stream Valleys • FCPA Policy 103.2­ Trails Fairfax County Park Authority Policy Manual – December 1998 Policy 101.3 Greenways, Including Stream Valleys The Fairfax County Park Authority shall provide leadership for establishment and management of an integrated network of Greenways within the County to conserve open space, to protect sensitive environmental and cult ural resources including wildlife habitat, riparian corridors, water quality, archaeological and historic sites and aesthetic values, to control flooding and erosion, and to provide continuity of non-motorized access between places where citizens and visitors live, work and play. As defined in the Countywide Policy Plan, Greenways are "linear open space corridors which include and connect, parks and recreation sites, areas of significant and sensitive ecological and heritage (cultural) resource value, wildlife habitats, riparian corridors and Countywide trails with each other and with residential communities, employment and commercial areas and transit destinations. Designated Greenways may be comprised of one or several components which will provide the desired resource protection and/or continuity of non-motorized access to destinations throughout the County. They may be established along natural corridors such as Environmental Quality Corridors, along scenic roadways, urban sidewalks and plazas, or other natural or landscaped courses for pedestrian, bicycle or equestrian passage. In addition to publicly accessible parklands and trails, Greenways may also incorporate private open space managed for the protection of significant natural and heritage (cult ural) resources under voluntary agreements with property owners." The Park Authority shall coordinate the establishment of the Countywide network of Greenways in accordance with the following guidelines: 1.
    [Show full text]
  • Attachment C Receiving Waters by Watershed
    ATTACHMENT C RECEIVING WATERS BY WATERSHED ACCOTINK CREEK ACCOTINK BAY ACCOTINK CREEK BEAR BRANCH CALAMO RUN COON BRANCH CROOK BRANCH DANIELS RUN FIELD LARK BRANCH FLAG RUN GUNSTON COVE HUNTERS BRANCH KERNAN RUN LAKE ACCOTINK LONG BRANCH MASON RUN POHICK BAY TURKEY RUN BELLE HAVEN CAMERON RUN HUNTING CREEK POTOMAC RIVER QUANDER BROOK BULL NECK RUN BLACK POND BULLNECK RUN POTOMAC RIVER BULL RUN BULL RUN CAMERON RUN BACKLICK RUN CAMERON RUN COW BRANCH FAIRVIEW LAKE HOLMES RUN INDIAN RUN LAKE BARCROFT PIKES BRANCH POPLAR RUN TRIPPS RUN TURKEYCOCK CREEK TURKEYCOCK RUN Page 1 of 12 CUB RUN BIG ROCKY RUN BULL RUN CAIN BRANCH CUB RUN DEAD RUN ELKLICK RUN FLATLICK BRANCH FROG BRANCH OXLICK BRANCH ROCKY RUN ROUND LICK ROUND RUN SAND BRANCH SCHNEIDER BRANCH UPPER OCCOQUAN SEWAGE AUTHORITY DEAD RUN DEAD RUN POTOMAC RIVER DIFFICULT RUN ANGELICO BRANCH BRIDGE BRANCH BROWNS BRANCH CAPTAIN HICKORY RUN COLVIN MILL RUN COLVIN RUN DIFFICULT RUN DOG RUN FOX LAKE HICKORY RUN LAKE ANNE LAKE AUDUBON LAKE FAIRFAX LAKE NEWPORT LAKE THOREAU LITTLE DIFFICULT RUN MOONAC CREEK OLD COURTHOUSE SPRING BRANCH PINEY BRANCH PINEY RUN POTOMAC RIVER ROCKY BRANCH ROCKY RUN SHARPERS RUN SNAKEDEN BRANCH SOUTH FORK RUN Page 2 of 12 THE GLADE TIMBER LAKE WOLFTRAP CREEK WOLFTRAP RUN WOODSIDE LAKE DOGUE CREEK ACCOTINK BAY BARNYARD RUN DOGUE CREEK DOGUE RUN GUNSTON COVE LAKE D'EVEREUX NORTH FORK DOGUE CREEK PINEY RUN POTOMAC RIVER FOUR MILE RUN CAMERON RUN FOUR MILE RUN HUNTING CREEK LONG BRANCH POTOMAC RIVER HIGH POINT BELMONT BAY GUNSTON COVE MASON NECK OCCOQUAN BAY POHICK BAY
    [Show full text]
  • CHAIN BRIDGE a HISTORY of the BRIDGE and ITS SURROUNDING TERRITORY 1608 -1991 by Jim Pearson
    CHAIN BRIDGE A HISTORY OF THE BRIDGE AND ITS SURROUNDING TERRITORY 1608 -1991 By Jim Pearson Most modern day Arlington commuters who use Chain Bridge in their daily trek to and from the District would be astonished to learn how prominent the area at Pimmit Run at the Virginia end of the bridge was in the early days of our fledgling country. At the mouth of the Pimmit was an early river crossing; two Indian trails from the interior country met at this spot and it is believed there was an Indian settlement and fishing ground here. 1 This spot, the first break in the palisades below Little Falls supported among other endeavors: Indian gatherings, taverns, ferries, a tobacco warehouse, the first industrial park in Northern Virginia, an extensive stone quarry operation, a Civil War outpost in the defense of the City, a sleepy crossroads settlement that came alive each spring during the herring and shad runs, and finally a high volume traffic artery to the City. It is also the site of a proposed town that failed to materialize. The area on the Virginia side of the river at Chain Bridge is rich in history, its past now noted only by a small roadside historical marker. The area was explored as early as 1608 "as high as the Falls" by Captain John Smith. An Indian settlement was believed to be at Pimmit Run with two trails that correspond approximately to the Fairfax Road (Route 123) and the other following Pimmit Run turning south and joining what is the present day Glebe Road at Walker Chapel.
    [Show full text]
  • Corridor Analysis for the Potomac Heritage National Scenic Trail in Northern Virginia
    Corridor Analysis For The Potomac Heritage National Scenic Trail In Northern Virginia June 2011 Acknowledgements The Northern Virginia Regional Commission (NVRC) wishes to acknowledge the following individuals for their contributions to this report: Don Briggs, Superintendent of the Potomac Heritage National Scenic Trail for the National Park Service; Liz Cronauer, Fairfax County Park Authority; Mike DePue, Prince William Park Authority; Bill Ference, City of Leesburg Park Director; Yon Lambert, City of Alexandria Department of Transportation; Ursula Lemanski, Rivers, Trails and Conservation Assistance Program for the National Park Service; Mark Novak, Loudoun County Park Authority; Patti Pakkala, Prince William County Park Authority; Kate Rudacille, Northern Virginia Regional Park Authority; Jennifer Wampler, Virginia Department of Conservation and Recreation; and Greg Weiler, U.S. Fish and Wildlife Service. The report is an NVRC staff product, supported with funds provided through a cooperative agreement with the National Capital Region National Park Service. Any assessments, conclusions, or recommendations contained in this report represent the results of the NVRC staff’s technical investigation and do not represent policy positions of the Northern Virginia Regional Commission unless so stated in an adopted resolution of said Commission. The views expressed in this document are those of the authors and do not necessarily reflect the views of the jurisdictions, the National Park Service, or any of its sub agencies. Funding for this report was through a cooperative agreement with The National Park Service Report prepared by: Debbie Spiliotopoulos, Senior Environmental Planner Northern Virginia Regional Commission with assistance from Samantha Kinzer, Environmental Planner The Northern Virginia Regional Commission 3060 Williams Drive, Suite 510 Fairfax, VA 22031 703.642.0700 www.novaregion.org Page 2 Northern Virginia Regional Commission As of May 2011 Chairman Hon.
    [Show full text]
  • Under the Ice Frogs and Turtles Sometimes Become Active Under the Ice and Can Be Seen Moving Slowly About
    WINTER 2015-2016 CHECK OUT OUR GREAT NATURE PROGRAMS! REGISTRATION BEGINS November 16, 2015 WHAT’S HAPPENING Sign up to receive THE SNAG and to find other information about our nature and conservation programs at http://parks.arlingtonva.us GULF BRANCH NATURE CENTER LONG BRANCH NATURE CENTER FORT C.F. SMITH PARK 3608 Military Road 625 S. Carlin Springs Road 2411 N. 24th St. Arlington, VA 22207 Arlington, VA 22204 Arlington, VA 22207 [email protected] [email protected] [email protected] 703-228-3403 703-228-6535 703-228-7033 Some frogs hibernate at the bottom of ponds, breathing through their skin. Frogs usually lie on the bottom rather than dig into the oxygen-poor mud because they require more oxygen than the mud can supply. Painted, snapping, and other native aquatic turtles also breathe through their skin during hibernation, but maintain a much lower metabolism than frogs. Consequently, they need less oxygen and can afford to bury themselves in the mud. In more northern latitudes, where ice can cover ponds and lakes for months and oxygen can become depleted, turtles have another trick up their shell. They can switch to anaerobic respiration, meaning respiration without oxygen. They can keep this up for weeks or even months! Under the Ice Frogs and turtles sometimes become active under the ice and can be seen moving slowly about. You might also see fish and aquatic insects such as water boatmen and predacious diving beetles. Check it out — under the ice! n the summer ponds are obviously lively places. Frogs sit along the edge or float in the water while turtles bask on logs and rocks.
    [Show full text]