US Bridges

Dayton-Durham RD over Durham Mutual Ditch

Good

Butte County, California · 0.5 MI E of Esquon RD · Structure no. 12C0243

Built
1972
53 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
3,850
2010 count
Owner
County
County Highway Agency

About this bridge

Dayton-Durham RD over Durham Mutual Ditch is a concrete continuous slab carrying Dayton-Durham RD over Durham Mutual Ditch in Butte County, California. It was built in 1972, so it is 53 years old, younger 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 3,850 vehicles a day, roughly 3% of them trucks, projected to reach 5,460 by 2046. The structure is 28 ft (8.6 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesDayton-Durham RD
CrossesDurham Mutual Ditch
Location0.5 MI E of Esquon RD
RouteCounty Highway 0
Coordinates39.64636, -121.75805
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating36.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length28 ft (8.6 m)
Longest span14 ft (4.2 m)
Deck width36 ft (11.1 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,850 (2010)
Projected traffic5,460 by 2046
Trucks3%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dayton-Durham RD over Durham Mutual Ditch built?

It was built in 1972, making it 53 years old in 2025.

What condition is Dayton-Durham RD over Durham Mutual Ditch 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 May 2024.

How much traffic does Dayton-Durham RD over Durham Mutual Ditch carry?

About 3,850 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is Dayton-Durham RD over Durham Mutual Ditch?

The structure is 28 ft (8.6 m) long with a longest span of 14 ft (4.2 m) and a deck 36 ft wide.

Who owns Dayton-Durham RD over Durham Mutual Ditch?

It is owned by the County Highway Agency.