US Bridges

N2920 over West Mud Creek

Good

Stephens County, Oklahoma · 1. S 10. E of US-81/SH-53 · Structure no. 257360000000000

Built
2001
24 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N2920 over West Mud Creek is a prestressed concrete stringer/multi-beam or girder carrying N2920 over West Mud Creek in Stephens County, Oklahoma. It was built in 2001, so it is 24 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 94 ft (28.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesN2920
CrossesWest Mud Creek
Location1. S 10. E of US-81/SH-53
RouteCounty Highway N2920
Coordinates34.35434, -97.78987
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 protection8 Very GoodNo problems noted.
Last inspectionJune 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating49.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span94 ft (28.7 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 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$492,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2920 over West Mud Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is N2920 over West Mud 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 June 2024.

How much traffic does N2920 over West Mud Creek carry?

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

How long is N2920 over West Mud Creek?

The structure is 94 ft (28.7 m) long with a longest span of 94 ft (28.7 m) and a deck 28 ft wide.

Who owns N2920 over West Mud Creek?

It is owned by the County Highway Agency.