US Bridges

U.S. 77 over Washita River

Good

Garvin County, Oklahoma · 5.3 MI S Paoli · Structure no. 168140000000000

Built
1966
59 years old, rebuilt 2022
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
552 ft
5 main spans
Daily traffic
2,100
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 77 over Washita River is a steel stringer/multi-beam or girder carrying U.S. 77 over Washita River in Garvin County, Oklahoma. It was built in 1966 and reconstructed in 2022, so it is 59 years old, older 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 2,100 vehicles a day, roughly 15% of them trucks, projected to reach 3,360 by 2042. The structure is 552 ft (168.2 m) long and 46 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesU.S. 77
CrossesWashita River
Location5.3 MI S Paoli
RouteU.S. Route 77
CountyGarvin County
StateOklahoma
Coordinates34.75448, -97.25126
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.7 US tons
Inventory rating29.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5 (+1 approach)
Design loadH 20
Structure length552 ft (168.2 m)
Longest span100 ft (30.5 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2022)
Projected traffic3,360 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

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$3.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 77 over Washita River built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2022.

What condition is U.S. 77 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 March 2024.

How much traffic does U.S. 77 over Washita River carry?

About 2,100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is U.S. 77 over Washita River?

The structure is 552 ft (168.2 m) long with a longest span of 100 ft (30.5 m) and a deck 46 ft wide.

Who owns U.S. 77 over Washita River?

It is owned by the State Highway Agency.