US Bridges

Bangor HWY over Branch Rockyhoncut Creek

Fair

Butte County, California · 1.7 MI N of LA Porte RD · Structure no. 12C0291

Built
1940
85 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
22 ft
1 main span
Daily traffic
1,740
2019 count
Owner
County
County Highway Agency

About this bridge

Bangor HWY over Branch Rockyhoncut Creek is a concrete tee beam carrying Bangor HWY over Branch Rockyhoncut Creek in Butte County, California. It was built in 1940, so it is 85 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 1,740 vehicles a day, roughly 17% of them trucks, projected to reach 2,095 by 2041. The structure is 22 ft (6.7 m) long and 23 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesBangor HWY
CrossesBranch Rockyhoncut Creek
Location1.7 MI N of LA Porte RD
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.40972, -121.42005
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
Deck7 GoodSome minor problems.
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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,740 (2019)
Projected traffic2,095 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Bangor HWY over Branch Rockyhoncut Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Bangor HWY over Branch Rockyhoncut 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 Bangor HWY over Branch Rockyhoncut Creek carry?

About 1,740 vehicles per day (2019 count), of which roughly 17% are trucks.

How long is Bangor HWY over Branch Rockyhoncut Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 23 ft wide.

Who owns Bangor HWY over Branch Rockyhoncut Creek?

It is owned by the County Highway Agency.