Fish Passage Case Studies
Stream Simulation

Case Studies .: About .:. Evaluate

Stream simulation at 4% slope with bed retention sills

Stream simulation of steep (7.7%) step-pool channel using bed retention sills

Stream Simulation Bottomless Arch Culvert

Cheese Creek Embedded Squash Pipe

Bottomless Arch Culvert w/Concrete Footings, Stream Simulation Design

Stream Simulation Bottomless Arch Culvert with Step-Pool Reaches to Control Channel Profile

Open Bottom Arch with Stream Simulation Channel Bed and Banks

Stream Simulation, submersible bridge with collapsible railings

Embedded Circular Culvert

Vented ford using three embedded box culverts sized to match bankfull width and depth.

Concrete Bottomless Arch Culvert with Regraded Channel and Sediment Removal, Stream Simulation Design

Arch culvert with simulated steep boulder channel anticipated to form step-pools

Embedded pipe-arch culvert with downstream boulder grade control

Pre-Cast Concrete Bridge with Boulder Steps on Steep Stream

Reconstruction of incised channel to eliminate perched bridge apron

Stream Simulation, bottomless arch, undermined footing retrofit with concrete weir-struts

Stream Simulation, Open Bottom Concrete Arch

Open bottom arch culvert with stream simulation channel bed. Construction included excavation of a deep fill which limited equipment access, requiring use of a crane and concrete pump truck.

Complete removal of the road-stream crossing and reconstructing of the stream channel

Culvert embedded and channel regraded with boulder weirs that failed during first year

Concrete Bottomless Arch Culvert with Grade Control

Stream Simulation with Modular Bridge

Stream Simulation, Bottomless Arch Culvert

Bottomless Arch Culvert w/ Concrete Footings, Stream Simulation