US Bridges

S.H. 115 over Washita River Oflow

Good

Kiowa County, Oklahoma · 0.9 MI N S.H. 9 · Structure no. 165960000000000

Built
1965
60 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
201 ft
5 main spans
Daily traffic
650
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 115 over Washita River Oflow is a steel stringer/multi-beam or girder carrying S.H. 115 over Washita River Oflow in Kiowa County, Oklahoma. It was built in 1965, so it is 60 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 650 vehicles a day, roughly 15% of them trucks, projected to reach 1,040 by 2042. The structure is 201 ft (61.3 m) long and 33 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

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CarriesS.H. 115
CrossesWashita River Oflow
Location0.9 MI N S.H. 9
RouteState Highway 115
CountyKiowa County
StateOklahoma
Coordinates35.11037, -98.74697
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length201 ft (61.3 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2022)
Projected traffic1,040 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed26.1 mi (42 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$2.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 115 over Washita River Oflow built?

It was built in 1965, making it 60 years old in 2025.

What condition is S.H. 115 over Washita River Oflow 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 June 2023.

How much traffic does S.H. 115 over Washita River Oflow carry?

About 650 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 115 over Washita River Oflow?

The structure is 201 ft (61.3 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns S.H. 115 over Washita River Oflow?

It is owned by the State Highway Agency.