US Bridges

State Route 32 over Mud Creek

Good

Butte County, California · 03-BUT-032-4.38 · Structure no. 12 0045

Built
1963
62 years old
Condition
Good
inspected April 2022
Type
Slab
Concrete Continuous
Length
274 ft
10 main spans
Daily traffic
13,000
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 32 over Mud Creek is a concrete continuous slab carrying State Route 32 over Mud Creek in Butte County, California. It was built in 1963, so it is 62 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, projected to reach 17,883 by 2041. The structure is 274 ft (83.5 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesState Route 32
CrossesMud Creek
Location03-BUT-032-4.38
RouteState Highway 32
Coordinates39.75286, -121.91554
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.2 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length274 ft (83.5 m)
Longest span28 ft (8.5 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2020)
Projected traffic17,883 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 32 over Mud Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is State Route 32 over Mud 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 2022.

How much traffic does State Route 32 over Mud Creek carry?

About 13,000 vehicles per day (2020 count).

How long is State Route 32 over Mud Creek?

The structure is 274 ft (83.5 m) long with a longest span of 28 ft (8.5 m) and a deck 34 ft wide.

Who owns State Route 32 over Mud Creek?

It is owned by the State Highway Agency.