US Bridges

N3900 Bentley RD over Creek

Good

Atoka County, Oklahoma · .1E 2.9N of Bentley · Structure no. 070110000000000

Built
1939
86 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

N3900 Bentley RD over Creek is a concrete continuous slab carrying N3900 Bentley RD over Creek in Atoka County, Oklahoma. It was built in 1939, so it is 86 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 150 vehicles a day, roughly 15% of them trucks, projected to reach 240 by 2042. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesN3900 Bentley RD
CrossesCreek
Location.1E 2.9N of Bentley
RouteCounty Highway 308
Coordinates34.25486, -96.07559
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length32 ft (9.8 m)
Longest span14 ft (4.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic240 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$276,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3900 Bentley RD over Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is N3900 Bentley RD over 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 January 2024.

How much traffic does N3900 Bentley RD over Creek carry?

About 150 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N3900 Bentley RD over Creek?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.3 m) and a deck 26 ft wide.

Who owns N3900 Bentley RD over Creek?

It is owned by the County Highway Agency.