Still
glides the stream, and shall forever glide; the form remains; the function
never dies.
William Wordsworth,
The River Duddon, 1820
Streams
Bring Life to a Watershed
The Chesapeake Bay watershed includes all the land, rivers,
creeks and streams that drain into the Chesapeake Bay. There are more than
100,000 miles of streams and creeks in this watershed and virtually everyone
living here lives within a half-mile of a stream or creek that eventually
flows into the Bay.
Streams shape our landscape. Flowing water transforms
land features, transporting and depositing soil from one place to another.
Deposited onto a floodplain, these mineral-rich soils are highly prized
as farmland. Streams are an important source of freshwater for our reservoirs.
Many wildlife species depend on these waterways. Streams
provide spawning and breeding habitat for fish and other wildlife like
aquatic insects, turtles, frogs, toads and salamanders. The land alongside
streams is also important as habitat for amphibians, reptiles, birds and
mammals. Known as riparian habitat, these areas provide food, water, shelter
and shade.
Nationally, freshwater rivers and streams have been seriously
degraded by our activities on the land. Sediment from runoff and in-stream
erosion are the primary sources of non-point source pollution in our nation’s
waterways. Ninety-two to 98 percent of the miles of rivers and streams
are so altered that they no longer fit the criteria for National Wild and
Scenic Rivers or U. S. Geologic Survey Benchmark Streams. These alterations
reduce habitat for fish and wildlife. Due to loss of habitat and pollution,
33 to 75 percent of aquatic species are rare or extinct.
The Chesapeake Bay watershed reflects this national picture.
Fifty percent of the stream miles lack sufficient buffers, and many, if
not most, of lowland streams have been physically altered by 300 years
of agriculture and development.
Stream
Assessment and Restoration Program
To address stream resource issues, the U.S Fish and Wildlife
Service’s Chesapeake Bay Field Office developed a stream restoration program
which provides assistance to landowners and local, state and federal agencies
in evaluating and restoring stream systems.
The program focuses in three areas:
• Training and education in stream assessment and restoration;
• Technical assistance; and
• Design and construction of demonstration projects.
Training
Applied Fluvial Geomorphology Courses
The Chesapeake Bay Field Office and many federal and
state agencies and conservation organizations cosponsored a series of applied
fluvial geomorphology workshops. The workshops are extremely popular with
participants, representing local, state and federal agencies and nongovernmental
organizations. Participants learn basic concepts of stream assessment and
behavior and how it applies to stream and riparian restoration. The Stream
Restoration Program continues to support River Short Courses through our
partners and the National Conservation Training Center.
Stream Corridor Restoration
The Chesapeake Bay Field Office stream staff with other
federal agencies developed a Stream Corridor Restoration handbook, which
advocates a multi-disciplinary approach to stream corridor restoration
through evaluation of principles, processes, and practices. A.training
course in the use of the handbook and basics of stream corridor assessment
and restoration is offered by the National Conservation Training Center.
Other Training
The Chesapeake Bay Field Office stream staff provides
training in stream survey techniques and basic data analysis through cooperation
with other state and nonprofit agencies. For instance stream staff assisted
the Virginia Riparian Advisory Committee in conducting a series of hands-on
riparian restoration projects which trained 500 federal, state and local
resource management staff throughout Virginia. Technical Assistance
Technical
Assistance
Maryland Stream Survey
The Chesapeake Bay Field Office stream staff is leading
an effort to survey streams at U.S. Geological Survey (USGS) gage stations
in four hydro-physiographic regions in Maryland to develop quantitative
regional relationships between drainage area and stream discharge and dimensions.
This is a cooperative project with the Maryland Department of Transportation,
State Highway Administration (SHA) and USGS, along with advisory agencies:
Maryland Department of Natural Resources and Department of the Environment,
Federal Highway Administration, U.S. Forest Service, Natural Resources
Conservation Service, and U.S. Army Corps of Engineers. Survey results
will provide basic information to reduce impacts to streams from road crossings,
develop improved stream channel restoration designs, and evaluate stream
channel conditions. The Piedmont physiographic region survey is complete
and the report: Bankfull Discharge and Channel Characteristics of Streams
in the Piedmont Hydrologic Region is available for download. Download
a copy of the Maryland Stream Survey in .pdf format (8.8 megabytes). You
will need a copy of Adobe's Acrobat
Reader in order to view and print this document. The second
report of the Maryland Stream Survey is available: Bankfull Discharge
and Channel Characteristics of Streams in the Allegheny Plateau and Valley
and Ridge Hydrologic Regions (10.3 megabytes). Additionally, the third report, Bankfull Discharge and Channel Characteristics of Streams in the Coastal Plain Hydrologic Region is available as well.
Patuxent River Naval Air Station
The Chesapeake Bay Field Office stream staff is assessing
stream conditions and stability in one of five major watersheds at the
Patuxent River Naval Air Station (PRNAS). The report provides information
and recommendations for stream and riparian protection and restoration.
The PRNAS natural resources staff will evaluate this effort as a model
for the remaining watersheds at the facility as well as other Navy facilities
in the Chesapeake Bay watershed.
Riparian Forest Buffers
Chesapeake Bay Field Office stream staff is developing
a rapid riparian and channel assessment method in support of the EPA Chesapeake
Bay Program Federal Agency Committee. The Bay Program partners have committed
to restoring 2,010 miles of riparian forest buffer throughout the Chesapeake
Bay watershed by the year 2010.
Helping Other Partners
The Chesapeake Bay Field Office stream staff assessed
the design and monitoring plan for stream restoration projects in Maryland
and Virginia for the Natural Resources Conservation Service (NRCS) and
local government partners, and in Maryland for the U. S. Army Corps of
Engineers (COE). Staff is currently assisting the COE with assessing channel
conditions and making recommendations for enhancement as part of the Anacostia
Levee Corridor Study.
Demonstration
Projects
Alloway Creek
In Carroll County, Maryland, stream staff designed and
constructed a demonstration stream restoration project in a rural watershed
targeted by the State of Maryland for comprehensive watershed restoration.
The project restored one-half mile of Alloway Creek and one acre of riparian
forest habitat.
Marsh Run
In Washington County, Maryland, stream staff designed
and constructed a demonstration stream restoration project on 1,500 feet
of Marsh Run, a spring-fed stream degraded by agricultural and livestock
activities. The project, a cooperative effort with the Washington County
Soil Conservation District, demonstrates restoration practices to local
landowners.
Tributary to Little Paint Branch
Stream staff trained Natural Resources Conservation Service
(NRCS) engineers in stream assessment, design and construction on 1,700
feet of a tributary to Little Paint Branch in Prince Georges County, Maryland,
on the grounds of the U. S. Department of Agriculture Beltsville Agricultural
Research Center (BARC). Conducted in collaboration with the NRCS and BARC,
the project reduces sediment into Little Paint Branch and demonstrates
stream restoration techniques. The site is used for bioengineering workshops
by NRCS and the Maryland Department of Natural Resources.
Links to Other Stream Sites
U.S. Geological Survey site:
http://water.usgs.gov
EPA National Showcase Watersheds:
http://www.epa.gov/owow/showcase/
Stream Corridor Restoration: Principles, Processes, and
Actions:
http://www.usda.gov/stream_restoration/
Maryland Streams:
http://www.dnr.state.md.us/streams/
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