US Bridges

N3710 over Little Walnut Creek

Good

Okfuskee County, Oklahoma · .1S 3W of Mason · Structure no. 330150000000000

Built
2013
12 years old
Condition
Good
inspected May 2024
Type
Truss - Thru
Steel
Length
80 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N3710 over Little Walnut Creek is a steel truss - thru carrying N3710 over Little Walnut Creek in Okfuskee County, Oklahoma. It was built in 2013, so it is 12 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 80 ft (24.4 m) long and 15 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesN3710
CrossesLittle Walnut Creek
Location.1S 3W of Mason
RouteCounty Highway N3710
Coordinates35.5662, -96.40575
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 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 alignment6: Equal to present minimum criteria
Operating rating56.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckSteel plate
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span80 ft (24.4 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 N3710 over Little Walnut Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is N3710 over Little Walnut 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 May 2024.

How much traffic does N3710 over Little Walnut Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3710 over Little Walnut Creek?

The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 15 ft wide.

Who owns N3710 over Little Walnut Creek?

It is owned by the County Highway Agency.