|
|
|||||||||
|
Table 6-1. Case Study Summary TableAnacostia River (Metropolitan Washington, DC
Restoration Technique Restoration
Goals Catagory Techniques
------------------- --- -------------------------------
Reduction in Control of CSOs and urban
pollutant loading U stormwater and land use controls
Stream channel restoration
Restoration of (e.g., channel geometry;
ecological integrity I stream bank stabilization)
Restoration of
spawning range I Removal of key fish barriers
Increased quality and Protection of existing
quantity of wetlands I and creation of new wetlands
Expansion of Extensive riparian and
forest cover R upland reforestation
Public awareness U Public outreach program
---
Bear Creek (Iowa)Restoration Technique Restoration Goals Catagory Techniques ------------------- --- ------------------------------- Improve water quality, aquatic habitat, and the aquatic community Create multi-species in the creek I riparian buffer strip Provide design specifications for other projects U Monitor and collect data --- Boulder Creek (East slope, high plains in central Rocky Mountains, Boulder, CO)
Restoration Technique Restoration
Goals Catagory Techniques
------------------- --- -------------------------------
Restoration of aquatic
life by reducing un- Restoration of natural stream
ionized ammonia geometry and contour (i.e.,
concentrations and replacing channelized berms,
improving stream water thalweg excavation, aeration
quality conditions I structures)
Riparian zone revegetation
R and wetland creation
Streambank stabilization
(biotechnical method using
I wattles and brush layering)
Improved timing and placement
of irrigation diversion and
R return flows
Restrictive fencing and gating;
U grazing BMPs
Enhanced wastewater treatment
facilities for removal of
T nitrate
---
Upper Grande Ronde River (NE Oregon
Restoration Technique Restoration
Goals Catagory Techniques
------------------- --- -------------------------------
Characterization and Characterization and evaluation
modeling of of impact of modified hydrology
restoration factors and sedimentation patterns
that will contribute attributable to land use on
to reduction of stream channel morphology and
summer water their effect on habitat
temperatures to I suitability
sustain a healthy
coldwaterecosystem Characterization and evaluation
of the condition of riparian
corridor vegetation and its
ability to act as a sediment
buffer and provide shade for
R the river
---
South Fork of the Salmon River (Idaho)
Restoration Technique Restoration
Goals Catagory Techniques
------------------- --- -------------------------------
Reduce ground-disturbing
activities through land
reclamation, road closures
Reduce sediment and reconstruction, and BMPs
loads I for forestry and roadbuilding
Remove sand from pools,
Stabilize stream in-stream gravel cleaning,
bank U and riparian restoration
Assess progress Collect and analyze monitoring
data such as core samples and
fish populations
---
Wildcat Creek, San Francisco Bay tributary (Richmond, CA)Restoration Technique Restoration Goals Catagory Techniques ------------------- --- ------------------------------- Flood control and Restoration of natural stream biological diversity I channel geometry and contour Preservation/ enhancement of riparian habitat R Planting of native species Provision of Construction of regional trail recreation, education, system and educational and open space U facilities Reduction in sediment loads and peak runoff U Grazing management plan --- Association of State Wetland Managers (1991)Technique Categories:
R = Riparian; U = Upland; T = Conventional Technology.
|
|
|
||
|
|