U.s. Highway 101 over West Slough

Fair Condition66 years old45,500 vehicles/day

Location

StateCalifornia
CountySonoma
Location04-son-101-34.65-hlbg
CarriesU.s. Highway 101
CrossesWest Slough
Coordinates38.60512, -122.86982

Condition Ratings

Overall ConditionFair
Channel/Waterway6 (Satisfactory)
Culvert6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length20.0 ft (6.1 m)
Max Span9.8 ft (3 m)
Deck Area146.4 sq m
Main Spans2
Year Built1960

Traffic

Avg Daily Traffic45,500 (2015)
Truck Traffic13%
Lanes On Bridge4

Inspection & Ownership

Last Inspection423
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number20 0213

Nearby Bridges

US Highway 101 NB over Healdsburg Av-s101 On-rp 0.1 mi Fair US Highway 101 SB over Healdsburg Av-s101 On-rp 0.1 mi Fair Kinley DR over West Slough 0.2 mi Fair U.s. Highway 101 over Westside RD 0.2 mi Poor Westside RD over Norton Slough 0.3 mi Fair Healdsburg AVE over Russian River 0.5 mi Fair Westside Road over Dry Creek 0.7 mi Fair Healdsburg AVE over Russian River Overflow 0.7 mi Fair Grant ST over Foss Creek 0.8 mi Fair US Highway 101 NB over Russian River 0.9 mi Fair