US Bridges

Bois Darc over Willow Creek

Good

Stephens County, Oklahoma · 0.9 MI E US 81 · Structure no. 255620000000000

Built
1960
65 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
1,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bois Darc over Willow Creek is a concrete culvert carrying Bois Darc over Willow Creek in Stephens County, Oklahoma. It was built in 1960, so it is 65 years old, older than the Oklahoma average of 47.8 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,600 by 2042. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesBois Darc
CrossesWillow Creek
Location0.9 MI E US 81
RouteCity Street 4680
Coordinates34.49258, -97.95409
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating41 US tons
Inventory rating24 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span14 ft (4.3 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic1,600 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bois Darc over Willow Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Bois Darc over Willow Creek 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 November 2024.

How much traffic does Bois Darc over Willow Creek carry?

About 1,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Bois Darc over Willow Creek?

The structure is 40 ft (12.2 m) long with a longest span of 14 ft (4.3 m) and a deck 32 ft wide.

Who owns Bois Darc over Willow Creek?

It is owned by the City or Municipal Highway Agency.