US Bridges

Co. Rd. 6438C over Ind. Nation Tp under

Good

Pushmataha County, Oklahoma · 70.1 Mis S. JCT I-40 · Structure no. 173160000000000

Built
1968
57 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
188 ft
2 main spans
Daily traffic
100
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

Co. Rd. 6438C over Ind. Nation Tp under is a prestressed concrete stringer/multi-beam or girder carrying Co. Rd. 6438C over Ind. Nation Tp under in Pushmataha County, Oklahoma. It was built in 1968, so it is 57 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 188 ft (57.3 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCo. Rd. 6438C
CrossesInd. Nation Tp under
Location70.1 Mis S. JCT I-40
RouteCounty Highway 6438C
CountyPushmataha County
StateOklahoma
Coordinates34.47694, -95.73139
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating88 US tons
Inventory rating37.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length188 ft (57.3 m)
Longest span95 ft (29 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Co. Rd. 6438C over Ind. Nation Tp under built?

It was built in 1968, making it 57 years old in 2025.

What condition is Co. Rd. 6438C over Ind. Nation Tp under 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 February 2023.

How much traffic does Co. Rd. 6438C over Ind. Nation Tp under carry?

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

How long is Co. Rd. 6438C over Ind. Nation Tp under?

The structure is 188 ft (57.3 m) long with a longest span of 95 ft (29 m) and a deck 29 ft wide.

Who owns Co. Rd. 6438C over Ind. Nation Tp under?

It is owned by the State Toll Authority.