US Bridges

S.H. 11 over Salt Fork Arkansas River

Good

Alfalfa County, Oklahoma · 6.8E of JCT U.S. 64 · Structure no. 293660000000000

Built
2014
11 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
300 ft
3 main spans
Daily traffic
1,500
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 11 over Salt Fork Arkansas River is a concrete stringer/multi-beam or girder carrying S.H. 11 over Salt Fork Arkansas River in Alfalfa County, Oklahoma. It was built in 2014, so it is 11 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 1,500 vehicles a day, roughly 16% of them trucks, projected to reach 2,400 by 2042. The structure is 300 ft (91.4 m) long and 42 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

Open in Google Maps
CarriesS.H. 11
CrossesSalt Fork Arkansas River
Location6.8E of JCT U.S. 64
RouteState Highway 11
CountyAlfalfa County
StateOklahoma
Coordinates36.80677, -98.24029
Functional classRural Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating40.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length300 ft (91.4 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2022)
Projected traffic2,400 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 11 over Salt Fork Arkansas River built?

It was built in 2014, making it 11 years old in 2025.

What condition is S.H. 11 over Salt Fork Arkansas River 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 S.H. 11 over Salt Fork Arkansas River carry?

About 1,500 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 11 over Salt Fork Arkansas River?

The structure is 300 ft (91.4 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns S.H. 11 over Salt Fork Arkansas River?

It is owned by the State Highway Agency.