Friday, November 01, 2013

Installing A New Dam - an update on the restoration at Silver Creek

Editor's note: The Kilpatrick Pond project is the largest enhancement project to take place at Silver Creek. The project is restoring the impounded section of the creek known as Kilpatrick Pond to address rising water temperatures and decades of sediment build up. Presently the pond contributes a significant amount of warm water into the system because of its large surface area. This affects over 15 miles of creek downstream. Every month we will post an update about the project on this blog.

We are nearing the end of the first phase of the restoration at Kilpatrick Pond. This month we completed dredging of the pond on the Purdy property, and began installing a new dam structure that is designed to allow for fish passage and the flow of cooler water under the dam. Recently water was diverted out of the pond to allow for the dam's installation. Fall is upon us and we are making steady progress. Stay tuned for more ...

Learn more about the project and how you can contribute at the Kilpatrick Pond Project webpage.
Looking upstream at The Nature Conservancy’s half of Kilpatrick Pond, following the downstream diversion of Silver Creek. Photo taken from the float tube access farthest downstream on Silver Creek Preserve, just above Kilpatrick Bridge. Photo © Rydell Welch/TNC.

Looking downstream from Kilpatrick Bridge, towards the Purdy’s (RR Ranch) half of Kilpatrick Pond.  Diverting Silver Creek through one of the Purdy’s irrigation canals exposed much of the ‘pond’ sediment for restoration work. Photo © Rydell Welch/TNC.

Silver Creek diverted through Albrethson Ditch, an irrigation canal on the Purdy’s property. Diverting Silver Creek at this point exposes most of the pond sediment and allows for the construction of a new irrigation dam. Photo © Rydell Welch/TNC.

The old dam used for irrigation on the Purdy’s property. The new dam is designed to allow fish passage and the flow of cooler water under the dam. Photo © Rydell Welch/TNC.

An overview of the Purdy’s half of Kilpatrick Pond, taken from the south side of Silver Creek. Silver Creek is visible along the northern side of the pond until it disappears into Albrethson Ditch. Photo © Rydell Welch/TNC.

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