Tidal Marsh Restoration Construction Completed for 2010
On Tuesday morning Ducks Unlimited engineer Randy Van Hoy directed a crew with Coos-Curry Electric Cooperative in the placement of new power poles and transmission lines outside of the newly restored creek and wetland area on the Smith Tract of Bandon Marsh NWR. The powerline formerly ran through the cranberry bogs that were present in this location. The cranberry bogs and surrounding area were recontoured last week into a floodplain wetland. Once the powerline was relocated and re-energized, Ducks Unlimited (Knife River Corporation) diverted Fahys Creek on the north end of the Smith Tract from the old ditched channel into the newly constructed "natural" channel configuration. This removed the stream flow from the straight-lined agricultural ditch where it had been located for many decades. Approximately 200' of the old ditch was filled and the remaining ditch will remain to serve as off channel wetland and wildlife habitat. As Fahys Creek was diverted USFWS personnel together with fisheries biologists from the Confederated Tribes of the Siletz Indians were present to capture and relocate any remaining fish and amphibians from the de-watered agricultural ditch.
With the diversion of Fahys Creek into the new meandering channel through the Smith Tract, restoration for 2010 was almost complete and on Wednesday, Knife River Corporation demobilized from the refuge. They will return next summer to complete the restoration project. The final task to complete this year's wetland restoration activities was to reduce erosion by establishing a vegetative cover on the disturbed ground in the former cranberry bogs. Approximately 4 acres of disturbed ground were hydro-seeded on Thursday with a mixture of native grasses to create this cover.
Work on the undergrounding of the Coos-Curry Electric Cooperative powerline through the marsh and under the river continued all week by Doyon Project Services (Michels Power). The underground cables were terminated to newly installed powerpoles, and vault lids were installed. The systems will be tested early next week and plans are being finalized for switching the power from the existing above ground system to the new underground system.
Federal Highways Administration and their contractor Tidewater Construction continued work on the raising of the Fahys Creek section of North Bank Lane this week after a brief delay in this effort. Tidewater also began cleanup operations on the job site as they edge closer to shutting down work for the winter.
Posted by the Oregon Coast National Wildlife Refuge Complex Staff at 2:39 PM in Category: Ni-les'tun Tidal Marsh Restoration Project