Corby AVE over Colgan Creek

Fair Condition96 years old3,000 vehicles/day

Location

StateCalifornia
CountySonoma
Location0.1 Mile South Of Hearn
CarriesCorby AVE
CrossesColgan Creek
Coordinates38.42032, -122.71733

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure5 (Fair)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length32.2 ft (9.8 m)
Max Span27.9 ft (8.5 m)
Deck Width25.9 ft (7.9 m)
Deck Area77.4 sq m
Main Spans1
Year Built1930

Traffic

Avg Daily Traffic3,000 (2019)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last Inspection624
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number20C0190

Nearby Bridges