US Bridges

Durham-Pentz RD over Hayes Canyon

Fair

Butte County, California · 0.8 MI E of S.R. 99 · Structure no. 12C0245

Built
1970
55 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
27 ft
1 main span
Daily traffic
7,146
2019 count
Owner
County
County Highway Agency

About this bridge

Durham-Pentz RD over Hayes Canyon is a concrete stringer/multi-beam or girder carrying Durham-Pentz RD over Hayes Canyon in Butte 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 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 7,146 vehicles a day, roughly 11% of them trucks, projected to reach 4,943 by 2046. The structure is 27 ft (8.3 m) long and 35 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

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CarriesDurham-Pentz RD
CrossesHayes Canyon
Location0.8 MI E of S.R. 99
RouteCounty Highway 0
CountyButte County
StateCalifornia
Coordinates39.63915, -121.70366
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.
Superstructure7 GoodSome minor problems.
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length27 ft (8.3 m)
Longest span26 ft (8 m)
Deck width35 ft (10.6 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,146 (2019)
Projected traffic4,943 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Durham-Pentz RD over Hayes Canyon built?

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

What condition is Durham-Pentz RD over Hayes Canyon 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 May 2024.

How much traffic does Durham-Pentz RD over Hayes Canyon carry?

About 7,146 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Durham-Pentz RD over Hayes Canyon?

The structure is 27 ft (8.3 m) long with a longest span of 26 ft (8 m) and a deck 35 ft wide.

Who owns Durham-Pentz RD over Hayes Canyon?

It is owned by the County Highway Agency.