US Bridges

State Route 29 over Scotts Creek

Fair

Lake County, California · 01-LAK-029-52.11 · Structure no. 14 0050

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
337 ft
4 main spans
Daily traffic
5,700
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 29 over Scotts Creek is a prestressed concrete continuous box beam or girders - multiple carrying State Route 29 over Scotts Creek in Lake County, California. It was built in 1989, so it is 36 years old, younger 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 5,700 vehicles a day, roughly 6% of them trucks, projected to reach 10,439 by 2046. The structure is 337 ft (102.7 m) long and 46 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Route 29
CrossesScotts Creek
Location01-LAK-029-52.11
RouteState Highway 29
Coordinates39.15729, -122.92074
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length337 ft (102.7 m)
Longest span98 ft (29.9 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2009)
Projected traffic10,439 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Scotts Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is State Route 29 over Scotts 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 Scotts Creek carry?

About 5,700 vehicles per day (2009 count), of which roughly 6% are trucks.

How long is State Route 29 over Scotts Creek?

The structure is 337 ft (102.7 m) long with a longest span of 98 ft (29.9 m) and a deck 46 ft wide.

Who owns State Route 29 over Scotts Creek?

It is owned by the State Highway Agency.