ELEPHANT BAR HABITAT ENHANCEMENT

2026-11-03

Two slough channels are to be excavated into Elephant Bar and tidally connected to God Wants You Slough to create new off - channel habitat for coho salmon and other aquatic species . The sloughs total 3 , 550 ft in length and ~ 118 , 400 cubic yards of material will be excavated in their creation over a 10 . 8 - acre area . Most of the excavated sediments will be moved to a nearby spoils area except for approximately 8 , 400 cubic yards of soil material which will be placed as shallow fill over a 3 . 2 - acre floodplain area . The project site is naturally isolated from tides and flows during the anticipated construction window , however groundwater is present at elevations ranging from approximately 3 . 5 to 4 . 5 ft ( based on limited summer observations ). Finished thalweg grades range from - 1 . 5 to 1 . 7 ft and finished intertidal bench grades range from 2 . 7 to 5 . 8 ft . Work in God Wants You Slough and in making the final connection to the newly excavated sloughs will be subject to tidal fluctuations where MLLW is 1 . 9 ft and MHHW is 6 . 9 ft . Most of the site is relatively free of vegetation except for the lower ~ 1 . 4 acres which is heavily vegetated and contains at least nine trees greater than 12 " in diameter . Twenty - two large wood structures will be installed and stabilized through partial burial for ballast . The bottom of the wood structures ranges from - 2 . 1 to 1 . 9 ft with maximum burial depths ranging from 9 . 2 to 9 . 8 ft .

Oregon

2026-04-08