US Bridges

U.S. 270 over Old S.H. 18(G.COOPER Und

Good

Pottawatomie County, Oklahoma · 7.1 MI S JCT SH 3 · Structure no. 250460000000000

Built
1997
28 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
235 ft
4 main spans
Daily traffic
6,100
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 270 over Old S.H. 18(G.COOPER Und is a steel stringer/multi-beam or girder carrying U.S. 270 over Old S.H. 18(G.COOPER Und in Pottawatomie County, Oklahoma. It was built in 1997, so it is 28 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 6,100 vehicles a day, roughly 16% of them trucks, projected to reach 9,760 by 2042. The structure is 235 ft (71.6 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesU.S. 270
CrossesOld S.H. 18(G.COOPER Und
Location7.1 MI S JCT SH 3
RouteU.S. Route 270
CountyPottawatomie County
StateOklahoma
Coordinates35.27252, -96.93087
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionMay 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 alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating33.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length235 ft (71.6 m)
Longest span59 ft (18 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2022)
Projected traffic9,760 by 2042
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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$1.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 270 over Old S.H. 18(G.COOPER Und built?

It was built in 1997, making it 28 years old in 2025.

What condition is U.S. 270 over Old S.H. 18(G.COOPER Und 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 May 2023.

How much traffic does U.S. 270 over Old S.H. 18(G.COOPER Und carry?

About 6,100 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is U.S. 270 over Old S.H. 18(G.COOPER Und?

The structure is 235 ft (71.6 m) long with a longest span of 59 ft (18 m) and a deck 41 ft wide.

Who owns U.S. 270 over Old S.H. 18(G.COOPER Und?

It is owned by the State Highway Agency.