US Bridges

State Route 29 over Coyote Creek

Fair

Lake County, California · 01-LAK-029-11.89 · Structure no. 14 0051

Built
1948
77 years old, rebuilt 2003
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
9,000
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 29 over Coyote Creek is a concrete slab carrying State Route 29 over Coyote Creek in Lake County, California. It was built in 1948 and reconstructed in 2003, so it is 77 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 9,000 vehicles a day, projected to reach 19,026 by 2042. The structure is 33 ft (10.2 m) long and 42 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesState Route 29
CrossesCoyote Creek
Location01-LAK-029-11.89
RouteState Highway 29
Coordinates38.81924, -122.57598
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length33 ft (10.2 m)
Longest span32 ft (9.8 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2009)
Projected traffic19,026 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

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 Coyote Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2003.

What condition is State Route 29 over Coyote 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 October 2024.

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

About 9,000 vehicles per day (2009 count).

How long is State Route 29 over Coyote Creek?

The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.8 m) and a deck 42 ft wide.

Who owns State Route 29 over Coyote Creek?

It is owned by the State Highway Agency.