Projects

Project Name

Howard Creek Culvert Replacement

Category
Fish Passage and Screening
Client / Agency
Lake County Watershed Councils
Partners
JWTR
Location
Lakeview, Oregon
Date
2010 to 2011
Project Description
The Lake County Umbrella Watershed Councils (LCUWC) with funding provided by the Oregon Watershed Enhancement Board, retained River Design Group, Inc. (RDG) to evaluate an existing culvert and prepare a fish passage solution for Howard Creek near Lakeview, Oregon. The existing culvert is a fish passage barrier due to the vertical drop at the culvert outlet. A secondary culvert provides high flow relief, but is also a passage barrier. The proposed design included replacing the existing culverts with a streambed simulation pipe arch culvert to provide fish passage on Howard Creek.

The overall goal of the project was to provide fish passage on Howard Creek. Fish species with a high probability of using lower Howard Creek include Goose Lake redband trout, Goose Lake sucker, and Goose Lake lamprey. Each of these endemic species is classified as a state (redband) or federal species of concern. The culvert replacement is expected to improve watershed continuity and restore fish access to historical spawning and rearing habitats.

RDG collaborated with LCUWC, JWTR, and a local equipment operator to replace the culvert in 2011. The installed pipe arch was a 32 ft long, 150 inch by 96 inch pipe that replaced the two existing perched pipes. Streambed simulation material was acquired on-site and imported from a nearby source. A low flow channel was designed through the pipe arch to ensure low flow consolidation and fish passage. The channel was reconstructed upstream and downstream of the pipe to ensure stability and slope continuity.

Related Content

  • Howard Creek Plan Set
    The Lake County Watershed Councils (LCWC) with funding provided by the Oregon Watershed Enhancement Board, retained River Design Group, Inc. (RDG) to evaluate an existing culvert and prepare a fish passage solution for Howard Creek near Lakeview, Oregon. The existing culvert is a fish passage barrier due to the vertical drop at the culvert outlet. [ Download ]
  • Howard Creek Report
    The Lake County Watershed Councils (LCWC) with funding provided by the Oregon Watershed Enhancement Board, retained River Design Group, Inc. (RDG) to evaluate an existing culvert and prepare a fish passage solution for Howard Creek near Lakeview, Oregon. The existing culvert is a fish passage barrier due to the vertical drop at the culvert outlet. [ | Download ]
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Project Images

Existing perched culverts on Howard Creek
Pipe arch delivery to project site
RDG completed fish salvage and sampled Goose Lake redband trout
Placing streambed material in the culvert
Streambed material and grade control in the culvert
An upstream view of the culvert nearing completion
A downstream view of the completed streambed in the culvert