Coleman Creek Project

The Coleman Creek project is nearly complete. The project included removing the existing concrete diversion dam and pump vault and replacing them with rock weirs for fish passage, a headgate above the upper weir, a fish screen, and a new pump vault. Work began the last week of October and is expected to be completed by early December.

This is the diversion structure during the '09 irrigation season. It was a barrier to fish passage and was unscreened.

The reach of the creek where the work occurred was dewatered and then a fish salvage occurred. Above are Ryan and Sara from the District and Jen Scott from WDFW with an electrofisher. They work for quite a while to remove all the fish under the existing diversion dam.

The first order of business was to remove the old diversion dam.

The rock weirs were constructed, beginning with the apex rock.

Below each rock weir, a scour pool was excavated.

The new pump vault was set in two pieces by a large crane.

The water was released back into the creek.

The remaining work includes finishing the gates, the fish screen installation and all the automation for the water measuring.

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Jack Creek/Indian Creek Update and Fall Construction Projects

The Jack Creek and Indian Creek culvert replacement projects are nearing completion. The Jack Creek culvert is installed and the creek is now running through the culvert. The road portion (paving and guardrail) will not be complete until the end of the month.

The newly shaped streambed inside the Jack Creek culvert

The Indian Creek culvert has been assembled and is being backfilled this week. The streambed gravel is being placed inside the culvert. That work should be complete by the September 22.

Backfilling the Indian Creek culvert this week.

The Coleman Creek Irrigation Modification Project bids were received last week. A construction contract will be executed next week with the lowest responsive and responsible bidder. That project is expected to begin in mid October. It involves removal of the existing dam and installation of rock weirs and a fish screen. The new diversion configuration will include automated gates and telemetry for the water measuring devices.
The Manastash Restoration Project make a significant leap this fall. The Barnes Road Fish Screen project will begin construction on October 5th. That project is contracted by the District and includes a fish ladder, a fish screen and water measuring equipment with telemetry and automated gates. The MWDA/Consolidated diversion fish screen structure will also be constructed this fall. That project is contracted directly by BPA through HDR and includes a fish screen, rock weirs for fish passage, and water measuring equipment with telemetry and automated gates.



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