US Bridges

State Route 29 over Chabot Creek

Fair

Solano County, California · 04-SOL-029-4.90-VAL · Structure no. 23 0237

Built
1960
65 years old, rebuilt 1970
Condition
Fair
inspected January 2022
Type
Culvert
Concrete Continuous
Length
25 ft
3 main spans
Daily traffic
25,150
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 29 over Chabot Creek is a concrete continuous culvert carrying State Route 29 over Chabot Creek in Solano County, California. It was built in 1960 and reconstructed in 1970, so it is 65 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 25,150 vehicles a day, roughly 8% of them trucks, projected to reach 50,208 by 2044. The structure is 25 ft (7.7 m) long and 131 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesState Route 29
CrossesChabot Creek
Location04-SOL-029-4.90-VAL
RouteState Highway 29
Coordinates38.14064, -122.25578
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length25 ft (7.7 m)
Longest span9 ft (2.6 m)
Deck width131 ft (40 m)
Roadway width87 ft (26.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,150 (2009)
Projected traffic50,208 by 2044
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 29 over Chabot Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1970.

What condition is State Route 29 over Chabot Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2022.

How much traffic does State Route 29 over Chabot Creek carry?

About 25,150 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is State Route 29 over Chabot Creek?

The structure is 25 ft (7.7 m) long with a longest span of 9 ft (2.6 m) and a deck 131 ft wide.

Who owns State Route 29 over Chabot Creek?

It is owned by the State Highway Agency.