Beaverdam Creek: An Environmental Perspective

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Beaverdam CreekAn Environmental Perspective
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Chesapeake Bay Watershed
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Anacostia Watershed Background

• Urban, over 75 Developed
• Size 176 mi2 avg. daily discharge 138 cfs
• Drains both Piedmont and Coastal Plain
• 8.4 mile long tidal freshwater river portion
• Overall, approximately 25 impervious
• 805,000 residents
• Diversity of people and streams

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Six Restoration Goals

• Goal 1 Reduce Pollutant Loads
• Goal 2 Enhance Aquatic diversity and Encourage a
  Quality Urban Fishery
• Goal 3 Restore Anadromous Fish Spawning Range
• Goal 4 Increase Acreage and Quality of Wetlands
• Goal 5 Expand Forest Cover and Riparian Buffers
• Goal 6 Increase Public Awareness, Citizen
  Participation and Friends of Groups

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Beaverdam Creek Background

• Drainage Area 14.1 mi2
• Mainstem Length 5 miles
• Median Baseflow 10-12 cubic feet per second
• Located in the Coastal Plain Physiographic
  Province
• Imperviousness 11 percent
• Population 9,000
• Forested Area 8.54 mi2 (60.7 percent of the
  drainage area)

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Beaverdam Creek Subwatershed
Powder Mill Road
Springfield Road
Edmonston Road
Soil Conservation Road
Research Road
City of Greenbelt
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How Does Beaverdam Creek Compare?
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Estimated Percent Impervious Surface For Selected
Anacostia Subwatersheds
Subwatershed Watershed Area Watershed Area Estimated Impervious Surfaces
Subwatershed Acres Sq. Miles Estimated Impervious Surfaces
Sligo Creek 7,404.7 11.57 35.0
Northwest Branch 26,808.6 41.89 17.0
Paint Branch 13,285.6 20.76 18.0
Little Paint Branch 6,687.3 10.45 19.0
Indian Creek 9,930.5 15.52 20.0
Upper Beaverdam Creek 9,007.9 14.07 11.0
Still Creek 2,550.2 4.0 15.1
Brier Ditch 2,598.3 4.1 26.4
Northeast Branch 4,268.9 6.67 36.0
Lower Beaverdam Creek 10,064.2 15.73 39.0
Watts Branch 2,404.8 3.76 29.0
Fort Chaplin 318.7 0.50 36.3
Fort Dupont 457.1 0.71 13.3
Pope Branch 249.9 0.39 28.0
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Forest Cover For Selected Anacostia Subwatersheds
Subwatershed Forest Forest Watershed Area Watershed Area Watershed Covered by Forest
Subwatershed Acres Sq. Miles Acres Sq. Miles Watershed Covered by Forest
Sligo Creek 1,100.9 1.72 7,404.7 11.57 14.9
Northwest Branch 8,282.0 12.94 26,808.6 41.89 30.9
Paint Branch 4,829.8 7.55 13,285.6 20.76 36.4
Little Paint Branch 2,105.7 3.29 6,687.3 10.45 31.5
Indian Creek 3,064.5 4.79 9,930.5 15.52 30.9
Upper Beaverdam Creek 5,464.2 8.54 9,007.9 14.07 60.7
Still Creek 1,400.8 2.19 2,550.2 4.0 54.9
Brier Ditch 762.7 1.19 2,598.3 4.1 29.4
Northeast Branch 984.5 1.54 4,268.9 6.67 23.1
Lower Beaverdam Creek 2,515.2 3.93 10,064.2 15.73 25.0
Watts Branch 529.4 0.83 2,404.8 3.76 22.0
Piney Run 91.2 0.14 1,014.6 1.59 9.0
Fort Chaplin 62.2 0.10 318.7 0.50 19.5
Fort Dupont 292.3 0.46 457.1 0.71 63.9
Pope Branch 89.8 0.14 249.9 0.39 35.9
Fort Davis 171.4 0.27 588.1 0.92 29.1
Fort Stanton 104.6 0.16 366.9 0.57 28.5
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Macroinvertebrate Index of Biotic Integrity (IBI)
Macroinvertebrates Macroinvertebrates
Scores Verbal Rating
36 - 40 Excellent
27 35 Good
17 - 26 Fair
0 - 16 Poor
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Fish Index of Biotic Integrity (IBI)
Fish Fish
Scores Verbal Rating
47 50 Excellent
35 46 Good
23 34 Fair
0 - 22 Poor