US Bridges

I-35 over Washita River

Fair

Garvin County, Oklahoma · 3.3 N of JCT S.H. 19 · Structure no. 311310000000000

Built
2017
8 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
761 ft
7 main spans
Daily traffic
15,450
2022 count
Owner
State
State Highway Agency

About this bridge

I-35 over Washita River is a prestressed concrete stringer/multi-beam or girder carrying I-35 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 fair condition with a lowest component rating of 6 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 15,450 vehicles a day, roughly 36% of them trucks, projected to reach 24,720 by 2042. The structure is 761 ft (232 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesI-35
CrossesWashita River
Location3.3 N of JCT S.H. 19
RouteInterstate 35
CountyGarvin County
StateOklahoma
Coordinates34.77877, -97.29272
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length761 ft (232 m)
Longest span200 ft (61 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,450 (2022)
Projected traffic24,720 by 2042
Trucks36%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-35 over Washita River built?

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

What condition is I-35 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 March 2024.

How much traffic does I-35 over Washita River carry?

About 15,450 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is I-35 over Washita River?

The structure is 761 ft (232 m) long with a longest span of 200 ft (61 m) and a deck 40 ft wide.

Who owns I-35 over Washita River?

It is owned by the State Highway Agency.