• Fish Habitat Permit Application
• Fish Habitat Permit Information(PDF 56KB)
• Salix Applied Earthcare
• ADF&G Streambank Restoration Guide
• International Erosion Control Association
• River Corridor and Wetlands Restoration
• River Management Society
• NOAA Habitat Restoration

• U.S. Army Corps of Engineers
• U.S. Forest Service Land
• U.S. Environmental Protection Agency
• Alaska Department of Environmental Conservation
• Alaska Department of Natural Resources, Division of Mining Land and Water
• Kenai Peninsula Multi Agency Permitting

These Activities Require a Fish Habitat Permit

The following is a typical procedure for installing flumes in fish streams. Please see notes for additional information.

1. Ductile iron pipe(s) are placed in the stream.
2. The entire stream flow is diverted through the pipes by means of temporary dams composed of sandbags, jersey barriers and visqueen, or any other means which does not expose erodible fill to stream flow. (Excavation and berming of native streambed material is not an acceptable technique for diverting streams).
3. Place a temporary dam at the downstream end of the flume to prevent backflow and to totally isolate the work area.
4. Install a utility line or pipeline by digging under the flume and pulling the line under the flume.
5. Water from the trench should not be pumped directly into the stream, but rather to a settling basin or an area where it can be naturally filtered, such as a wetland, before it reenters the stream.
6. Sumps can also be dug adjacent to the trench to dewater the trench.
7. After the utility line or pipeline is installed, the trench should be backfilled, and the top 2 feet should be filled with clean, washed 1" to 6" rock.
8. The flume is then removed along with all other material foreign to the stream.
9. Stream banks are restored to preproject contours and revegetated.

NOTES:

1. Fluming enables a utility or pipeline trench to be isolated from the stream flow, which reduces stream pollution. Vehicular access across a stream is also provided.
2. Flumes (temporary pipes) can be used in streams up to 100 cfs. Timing should coincide with the low flow period, unless sensitive life stages or the presence of ice are more critical.
3. Fluming procedures may vary according to site specific conditions.
4. Pipes must be large and strong enough to handle the maximum flow of the streams. Except for the smallest streams, corrugated metal pipes (cmp) must not be used because they will not support the weight of the water. Ductile iron or other heavy metal pipes must be used.
5. The length of the flume is dependent on the stability of the trench. The more unstable the walls or deeper the trench, the longer the pipes.
6. Flumes can be used in the winter, when ice can be placed on top, or in the summer when clean fill can be placed on top, but cover is not required.
7. For typical fluming procedure see the above procedure.