US Bridges

U.S. 270 SB over S.H. 9 under

Fair

Pottawatomie County, Oklahoma · 8.0 MI S of SH3 · Structure no. 223810000000000

Built
1989
36 years old
Condition
Fair
inspected May 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
200 ft
2 main spans
Daily traffic
5,000
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 270 SB over S.H. 9 under is a steel continuous girder and floorbeam system carrying U.S. 270 SB over S.H. 9 under in Pottawatomie County, Oklahoma. It was built in 1989, so it is 36 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 5,000 vehicles a day, roughly 16% of them trucks, projected to reach 8,000 by 2042. The structure is 200 ft (61 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesU.S. 270 SB
CrossesS.H. 9 under
Location8.0 MI S of SH3
RouteU.S. Route 270
CountyPottawatomie County
StateOklahoma
Coordinates35.26105, -96.92283
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length200 ft (61 m)
Longest span100 ft (30.5 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2022)
Projected traffic8,000 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$1.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 270 SB over S.H. 9 under built?

It was built in 1989, making it 36 years old in 2025.

What condition is U.S. 270 SB over S.H. 9 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 May 2023.

How much traffic does U.S. 270 SB over S.H. 9 under carry?

About 5,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is U.S. 270 SB over S.H. 9 under?

The structure is 200 ft (61 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.

Who owns U.S. 270 SB over S.H. 9 under?

It is owned by the State Highway Agency.