stream restoration design and environmental … pdfs/h_session_web/3_h_berg.pdfstream restoration...
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Stream Restoration Design and
Environmental Benefit
Joe Berg
2010
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Source of Photos: Underwood & Associates
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Conveyance Channel
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Well connected, but no water storage on the landscape
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Make Opportunities for Storage
Integrated Stream and Wetland
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Set weirs to retain water on landscape
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Tributary to Rock Creek Washington, DC February 2011 ~10 ft Incised
What is the Stream Design Solution?
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Tributary to Rock Creek Washington, DC October 2011 Connected to Riparian Zone
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incised groundwater
Groundwater Restoration
Reconnect Stream – PB-1
Raising groundwater elevation to near top of bank would store
8.5 ac-ft of water
Estimated to extend baseflow by 19 days
Significant benefits to Stream hydrograph, shear s, instream-
habitat, adjacent wetland hydrology, etc.
Source: Solange Filoso, University of Maryland
Source: Palmer and Filoso, 2009
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Wilelinor
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Hydro-Modification
Source: Palmer and Filoso, 2009
Source: Solange Filoso, University of Maryland
Carriage Hils
Carriage Hills, Source: Solange Filoso, University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory
0
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jan mar apr may jun
TSS
(m
g/L
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control (degraded) stream restored stream
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1000
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TSS
(mg/
L)
time in 10 min. intervals
degraded control stream restored stream
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Wat
er
tem
pe
ratu
re (
Ce
nti
grad
e)
Aug to Sept 2011
control restored
Discussion?