CROSSING CL030 / CV6684
Clear and Foster Creek 2002 Fish Passage Assessment
Watershed: Clear Creek
Stream: T Clear Ck.
Road: Hillockburn
Latitude: 45.2111015789
Longitude: -122.2761328576
Elevation: 1414 ft
Ownership: County
Fish Presence: fish present
Survey date: 06/12/2002
Crossing Description
Type: round culvert
Condition: 10.0 years left
Diameter: 24.0 in
Length: 74.0 ft
Crossing slope: 0.4 %
Backwater drop: + 1.3 ft
Inlet elev: +0.4 ft
Avg. fill height: 7.6 ft
Habitat Description
Channel habitat type: Moderate gradient, moderately confined
Catchment acreage: 145.0
Avg. channel slope: 4.9%
Avg. bankfull width: 4.0 ft
Distance from Clackamas R.: 26.9 miles
Upstream fish-bearing length: 1022 ft
Dominant channel substrate: none recorded
Comments: Heavy debris at inlet. Moss on downstream scour plate. Wide valley. Culvert transverse to road. There were nine road measurements. Solution – Extreme length. Pipe arch or round with 71 ft long. County estimate based on box culvert.
Prioritization and Cost Information
Fish passage: no
Habitat priority: 66
Habitat and cost priority: 71
Fix solution: culvert w/ simulated streambed
Span: 5.0 ft
Material: metal
Design NA
Materials NA
Install NA
Contingencies NA
Total $95,000.00