US Bridges

IRR E1340 over Washita River

Good

Caddo County, Oklahoma · 1.5W of Anadarko · Structure no. 310320000000000

Built
2016
9 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
264 ft
3 main spans
Daily traffic
250
2022 count
Owner
County
County Highway Agency

About this bridge

IRR E1340 over Washita River is a prestressed concrete stringer/multi-beam or girder carrying IRR E1340 over Washita River in Caddo County, Oklahoma. It was built in 2016, so it is 9 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 250 vehicles a day, roughly 15% of them trucks, projected to reach 400 by 2042. The structure is 264 ft (80.5 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesIRR E1340
CrossesWashita River
Location1.5W of Anadarko
RouteCounty Highway E1340
Coordinates35.07333, -98.26778
Functional classRural Major Collector

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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length264 ft (80.5 m)
Longest span105 ft (32 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic400 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 IRR E1340 over Washita River built?

It was built in 2016, making it 9 years old in 2025.

What condition is IRR E1340 over Washita 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 January 2024.

How much traffic does IRR E1340 over Washita River carry?

About 250 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR E1340 over Washita River?

The structure is 264 ft (80.5 m) long with a longest span of 105 ft (32 m) and a deck 34 ft wide.

Who owns IRR E1340 over Washita River?

It is owned by the County Highway Agency.