US Bridges

Interstate 5 over Funks Creek

Good

Colusa County, California · 03-COL-005-R30.82 · Structure no. 15 0056R

Built
1970
55 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
13,000
2022 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over Funks Creek is a concrete continuous slab carrying Interstate 5 over Funks Creek in Colusa County, California. It was built in 1970, so it is 55 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,000 vehicles a day, roughly 25% of them trucks, projected to reach 21,424 by 2042. The structure is 80 ft (24.3 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 5
CrossesFunks Creek
Location03-COL-005-R30.82
RouteInterstate 5
Coordinates39.33412, -122.19458
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
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 Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length80 ft (24.3 m)
Longest span30 ft (9.1 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2022)
Projected traffic21,424 by 2042
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 5 over Funks Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Interstate 5 over Funks Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Interstate 5 over Funks Creek carry?

About 13,000 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Interstate 5 over Funks Creek?

The structure is 80 ft (24.3 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.

Who owns Interstate 5 over Funks Creek?

It is owned by the State Highway Agency.