US Bridges

N3940 (deer Creek) over Delaware Creek

Good

Atoka County, Oklahoma · 4.1 E; 2.7 S Bentley · Structure no. 284520000000000

Built
2007
18 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
111 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N3940 (deer Creek) over Delaware Creek is a prestressed concrete tee beam carrying N3940 (deer Creek) over Delaware Creek in Atoka County, Oklahoma. It was built in 2007, so it is 18 years old, younger 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 111 ft (33.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesN3940 (deer Creek)
CrossesDelaware Creek
Location4.1 E; 2.7 S Bentley
RouteCounty Highway N3940
Coordinates34.17615, -96.00592
Functional classRural Local

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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length111 ft (33.7 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3940 (deer Creek) over Delaware Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is N3940 (deer Creek) over Delaware 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 N3940 (deer Creek) over Delaware Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3940 (deer Creek) over Delaware Creek?

The structure is 111 ft (33.7 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns N3940 (deer Creek) over Delaware Creek?

It is owned by the County Highway Agency.