Skyway over State Route 99

Good Condition61 years old37,400 vehicles/day

Location

StateCalifornia
CountyButte
Location03-but-099-r30.60-chc
CarriesSkyway
CrossesState Route 99
Coordinates39.71486, -121.80116

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length294.0 ft (89.6 m)
Max Span77.1 ft (23.5 m)
Deck Width60.0 ft (18.3 m)
Deck Area1639.7 sq m
Main Spans4
Year Built1965

Traffic

Avg Daily Traffic37,400 (2020)
Truck Traffic1%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number12 0167

Nearby Bridges