US Bridges

IRR 0840C over Washita River

Fair

Caddo County, Oklahoma · 2.9 MI N US 281 · Structure no. 243030000000000

Built
1996
29 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
293 ft
3 main spans
Daily traffic
475
2022 count
Owner
County
County Highway Agency

About this bridge

IRR 0840C over Washita River is a prestressed concrete stringer/multi-beam or girder carrying IRR 0840C over Washita River in Caddo County, Oklahoma. It was built in 1996, so it is 29 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 475 vehicles a day, roughly 15% of them trucks, projected to reach 760 by 2042. The structure is 293 ft (89.3 m) long and 34 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesIRR 0840C
CrossesWashita River
Location2.9 MI N US 281
RouteCounty Highway 840C
Coordinates35.06937, -98.31627
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating40.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length293 ft (89.3 m)
Longest span100 ft (30.5 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2022)
Projected traffic760 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$880,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR 0840C over Washita River built?

It was built in 1996, making it 29 years old in 2025.

What condition is IRR 0840C over Washita River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does IRR 0840C over Washita River carry?

About 475 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR 0840C over Washita River?

The structure is 293 ft (89.3 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.

Who owns IRR 0840C over Washita River?

It is owned by the County Highway Agency.