Bringing Life to Streams 

400 Restoration Projects Since 1991!  

Map NSEA Projects.jpg

Removing Barriers to Migrating Fish

Since 1991, NSEA has worked to remove migratory barriers to fish by fixing broken culverts  or replacing culverts with bridges (see below). This work has resulted in the opening of over 50 miles of upstream habitat for young fish and spawning adults. 

No migration - fish stuck below the culvert

No migration - fish stuck below the culvert

Freedom to migrate up and down restored!

Freedom to migrate up and down restored!


The planting of native trees and shrubs along stream banks restores function in the riparian zone. This work improves salmon habitat by shading the stream (keeping water temperatures cool) and limiting erosion (keeping the water clear). 

Even more, a well intact riparian zone:

  • Provides adequate habitat for salmon and other wildlife. 
  • Contributes to consistent stream flows throughout the year. 
  • Buffers against high flood flows and low summer flows. 
  • Helps to filter pollutants.

During 2015 alone, NSEA

  • Completed 11 Salmon Habitat Enhancement Projects
  • Installed 14 Large Woody Debris (LWD) structures
  • Removed 6 migratory obstacles resulting in full access to 0.3 miles of habitat
  • Planted 6,644 trees and shrub seedlings along stream banks
  • Maintained 28 past riparian projects along more than 3.4 miles of stream bank 


In-stream salmon habitat improvement projects include adding massive root wads, whole tree trunks, gravel, and other features to create crucial salmon rearing and spawning habitat.

NSEA's connects resources and people together for the common good.  Even small sections of improved streams, amid otherwise degraded habitat, can immediately provide an island of habitat for salmon.


View the projects we're monitoring and working on now!