US Bridges

College City RD over South Fork Brush Creek

Fair

Colusa County, California · 1.2 MI N of White RD · Structure no. 15C0095

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
402
2014 count
Owner
County
County Highway Agency

About this bridge

College City RD over South Fork Brush Creek is a concrete slab carrying College City RD over South Fork Brush Creek in Colusa County, California. It was built in 1972, so it is 53 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 5 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 402 vehicles a day, roughly 10% of them trucks, projected to reach 909 by 2042. The structure is 29 ft (8.9 m) long and 33 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

CarriesCollege City RD
CrossesSouth Fork Brush Creek
Location1.2 MI N of White RD
RouteCounty Highway 0
Coordinates38.98031, -121.9982
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.5 US tons
Inventory rating61.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.9 m)
Longest span28 ft (8.5 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic402 (2014)
Projected traffic909 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 College City RD over South Fork Brush Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is College City RD over South Fork Brush 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 2023.

How much traffic does College City RD over South Fork Brush Creek carry?

About 402 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is College City RD over South Fork Brush Creek?

The structure is 29 ft (8.9 m) long with a longest span of 28 ft (8.5 m) and a deck 33 ft wide.

Who owns College City RD over South Fork Brush Creek?

It is owned by the County Highway Agency.