US Bridges

U.S. 270 over Old U.S. 270 under

Fair

Pittsburg County, Oklahoma · 12.9 SE JCT US 69B · Structure no. 013780000000000

Built
1924
101 years old, rebuilt 1965
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
9,200
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 270 over Old U.S. 270 under is a steel stringer/multi-beam or girder carrying U.S. 270 over Old U.S. 270 under in Pittsburg County, Oklahoma. It was built in 1924 and reconstructed in 1965, so it is 101 years old, older 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 9,200 vehicles a day, roughly 16% of them trucks, projected to reach 14,720 by 2042. The structure is 30 ft (9.1 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesU.S. 270
CrossesOld U.S. 270 under
Location12.9 SE JCT US 69B
RouteU.S. Route 270
CountyPittsburg County
StateOklahoma
Coordinates34.85523, -95.58593
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating47.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span26 ft (7.9 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,200 (2022)
Projected traffic14,720 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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$2.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 270 over Old U.S. 270 under built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1965.

What condition is U.S. 270 over Old U.S. 270 under 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 September 2023.

How much traffic does U.S. 270 over Old U.S. 270 under carry?

About 9,200 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is U.S. 270 over Old U.S. 270 under?

The structure is 30 ft (9.1 m) long with a longest span of 26 ft (7.9 m) and a deck 46 ft wide.

Who owns U.S. 270 over Old U.S. 270 under?

It is owned by the State Highway Agency.