US Bridges

S.H. 74 over Washita River

Good

Garvin County, Oklahoma · 1.4 MI N JCT SH 19 · Structure no. 306210000000000

Built
2017
8 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
542 ft
1 main span
Daily traffic
2,800
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 74 over Washita River is a prestressed concrete stringer/multi-beam or girder carrying S.H. 74 over Washita River in Garvin County, Oklahoma. It was built in 2017, so it is 8 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 2,800 vehicles a day, roughly 15% of them trucks, projected to reach 4,480 by 2042. The structure is 542 ft (165.1 m) long and 42 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesS.H. 74
CrossesWashita River
Location1.4 MI N JCT SH 19
RouteState Highway 74
CountyGarvin County
StateOklahoma
Coordinates34.83787, -97.40522
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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 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 rating54 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+3 approach)
Design loadHL 93
Structure length542 ft (165.1 m)
Longest span200 ft (61 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2022)
Projected traffic4,480 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 74 over Washita River built?

It was built in 2017, making it 8 years old in 2025.

What condition is S.H. 74 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 S.H. 74 over Washita River carry?

About 2,800 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 74 over Washita River?

The structure is 542 ft (165.1 m) long with a longest span of 200 ft (61 m) and a deck 42 ft wide.

Who owns S.H. 74 over Washita River?

It is owned by the State Highway Agency.