Fish Barrier

Shields & Smith Drainages Aquatic Improvements
Dominion Creek Trestle
Pulaski Tunnel Trail
Milltown Dam Sheet Pile
NF Spruce Creek Bridge
Swan River Bridge

Jordan Bridge Rehabilitation

Shields & Smith Drainages Aquatic Improvements*

Client: USDA Forest Service      Where:  NE of Bozeman, MT

Project Background:
DJ&A worked with the Gallatin National Forest in applying a unique approach to solving fish habitat recovery and providing aquatics organism passage (AOP) by improving the entire Shields/Smith Drainage systems.  Drainage system improvements included:  roadway reconstruction and paving, bridge widening, road reshaping and surfacing, sedimentation and erosion protection, dust abatement, stream bank protection and stabilization, excess roadway  closures/restoration, AOP structures, fish barriers, ATV, snowmobile and horse trails, mountain bike routes and trailhead parking improvements. 

While protecting and restoring the entire drainage resources, the complete drainage basins were raised to a higher level of recreational service for the public.

  • Over 38 miles of aquatic habitat covering 41,000 acres were opened or protected
  • 78 miles of excess roadways closed or restored
  • 12 aquatic organism passage structures installed (with 6 more planned)
  • 2 fish barriers installed (with another planned)

*DJ&A was awarded the "Carl Anderson Conservation Engineering Special Award of Excellence" (by the Association of Conservation Engineers) and the Montana Chapter of the American Fisheries Society "Conservation Award" for the Smith and Shields Drainage Fish Passage project that included numerous AOP projects, fish barriers, road design, and construction management. 

More Project Information (Click on the Image below)


  DJ&A, P.C. 
3203 Russell Street / Missoula, MT, 59801
P: 406/721-4320  F: 406/549-6371
Visit our Linkedin page Connect with us on Linkedin
DJ&A, P.C.
Click here