US Bridges

Middle Honcut RD over Wyman Ravine

Fair

Butte County, California · 0.3 MI E of SH 70 · Structure no. 12C0112

Built
1968
57 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
107 ft
4 main spans
Daily traffic
70
2019 count
Owner
County
County Highway Agency

About this bridge

Middle Honcut RD over Wyman Ravine is a concrete continuous slab carrying Middle Honcut RD over Wyman Ravine in Butte County, California. It was built in 1968, so it is 57 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 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 70 vehicles a day, roughly 5% of them trucks, projected to reach 74 by 2041. The structure is 107 ft (32.6 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMiddle Honcut RD
CrossesWyman Ravine
Location0.3 MI E of SH 70
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.33513, -121.59258
Functional classRural Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span26 ft (7.9 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2019)
Projected traffic74 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Middle Honcut RD over Wyman Ravine built?

It was built in 1968, making it 57 years old in 2025.

What condition is Middle Honcut RD over Wyman Ravine 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 July 2023.

How much traffic does Middle Honcut RD over Wyman Ravine carry?

About 70 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Middle Honcut RD over Wyman Ravine?

The structure is 107 ft (32.6 m) long with a longest span of 26 ft (7.9 m) and a deck 27 ft wide.

Who owns Middle Honcut RD over Wyman Ravine?

It is owned by the County Highway Agency.