Dempsey Creek Family Forest Fish Passage Project


The Family Forest Fish Passage Program (FFFPP) assists private forestland owners in removing culverts and other stream crossing structures that prevent ESA listed salmonids from migrating upstream. Through the management of the Department of Natural Resources Washington State Recreation and Conservation Office some 376 landowners have taken advantage of the program to remove 433 barriers since 2003.

This project removed two barrier culverts and improved access to 0.7 miles of coho, cutthroat and steelhead habitat up to the headwater lake. The first barrier was a culvert with a 3.27% slope (67% passible) and was replaced with a 5.5ft high, 12ft wide and 12ft tall concrete box. The second barrier had a 1 meter outfall drop (0% passible) and was replaced with a 40ft long steel bridge.

Start Date
Dempsey Creek, a tributary to the Black River in the Chehalis Watershed
Project Type
Completion Date
Fish Passage

Goals & Objectives

The goal of this project is to replace the two impassable crossings on the MacKenzie property with two structures that will allow fish to migrate both upstream and downstream of the new crossings increasing the amount of useable habitat.

Primary Habitats Impacted By Project:
Managing Agency/ Organization:
Riparian Stream Channel
Washington State Recreation and Conservation Office
Project Contact:
Budget or Project Cost:
Jamie Glasgow
Funding Sources:
Family Forest Fish Passage Grants
Landowners Meagan and James MacKenzie