US Bridges

N3720 over Little Wewoka Creek

Good

Hughes County, Oklahoma · .7 N & 4 E of Butner · Structure no. 219430000000000

Built
1988
37 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N3720 over Little Wewoka Creek is a prestressed concrete stringer/multi-beam or girder carrying N3720 over Little Wewoka Creek in Hughes County, Oklahoma. It was built in 1988, so it is 37 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 82 ft (25.1 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesN3720
CrossesLittle Wewoka Creek
Location.7 N & 4 E of Butner
RouteCounty Highway N3720
Coordinates35.27164, -96.38816
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.1 US tons
Inventory rating53 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 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 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$460,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3720 over Little Wewoka Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is N3720 over Little Wewoka 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 October 2023.

How much traffic does N3720 over Little Wewoka Creek carry?

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

How long is N3720 over Little Wewoka Creek?

The structure is 82 ft (25.1 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns N3720 over Little Wewoka Creek?

It is owned by the County Highway Agency.