Crossing CL101

Clear and Foster Creek 2002 Fish Passage Assessment


Watershed: Clear Creek

Stream: T Clear Ck.

Road: Sylvan

Latitude: 45.3304389393

Longitude: -122.4260634547

Elevation: 308 ft

Ownership: Private

Fish Presence: fish present

Survey date: 06/26/2002

Crossing Description

Type: round culvert

Number of culverts at crossing: 4

Condition: +5.0 years left

Diameter: 30.0 in

Length: 41.0 ft

Crossing slope: 1.9 %

Avg. embedded: 24.0%

Type of embedding: sparse rock fill

Embedded material: cobble

Inlet design: non-mitered

Backwater drop: + 0.3 ft

Inlet elev: +0.0 ft

Avg. fill height: 5.3 ft

Road width: 13.0 ft

Road armor: cobble / fine

Habitat Description

Channel habitat type: moderate gradient, moderately confined

Catchment acreage: 980

Avg. channel slope: 2.8%

Avg. bankfull width: 16.2 ft

Dist from Clackamas R.: 9.0 miles

Upstream fish-bearing length: 2.7 miles

Dominant channel substrate: cobble / gravel

Comments: Four culverts. Solution – Probably a high priority culvert with CL100. No dirt on top. Very low cover, 15 ft width secondary road.

Prioritization and Cost Information

Fish passage: partial

Habitat priority: 10

Habitat and cost priority: 13

Fix solution: Open slab

Span: 25.0 ft

Material: concrete

Design $5,000

Materials $39,400

Install $22,990

Contingencies $20,217

Total $87,607.00