US Bridges

State Route 70 over Middle Honcut Creek

Fair

Butte County, California · 03-BUT-070-0.09 · Structure no. 12 0059

Built
1941
84 years old, rebuilt 1987
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
197 ft
7 main spans
Daily traffic
11,700
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 70 over Middle Honcut Creek is a concrete continuous slab carrying State Route 70 over Middle Honcut Creek in Butte County, California. It was built in 1941 and reconstructed in 1987, so it is 84 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 11,700 vehicles a day, roughly 13% of them trucks, projected to reach 21,305 by 2043. The structure is 197 ft (60 m) long and 44 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesState Route 70
CrossesMiddle Honcut Creek
Location03-BUT-070-0.09
RouteState Highway 70
CountyButte County
StateCalifornia
Coordinates39.30805, -121.59534
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating40.3 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length197 ft (60 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,700 (2020)
Projected traffic21,305 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 70 over Middle Honcut Creek built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1987.

What condition is State Route 70 over Middle Honcut 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 August 2023.

How much traffic does State Route 70 over Middle Honcut Creek carry?

About 11,700 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is State Route 70 over Middle Honcut Creek?

The structure is 197 ft (60 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns State Route 70 over Middle Honcut Creek?

It is owned by the State Highway Agency.