US Bridges

U.S. 270 SB N-E over S.H. 9 WB under

Fair

Pottawatomie County, Oklahoma · US 270 SB N-E; @ JCT SH 9 · Structure no. 155430000000000

Built
1962
63 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
160 ft
3 main spans
Daily traffic
7,000
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 270 SB N-E over S.H. 9 WB under is a steel stringer/multi-beam or girder carrying U.S. 270 SB N-E over S.H. 9 WB under in Pottawatomie County, Oklahoma. It was built in 1962, so it is 63 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 7,000 vehicles a day, roughly 16% of them trucks, projected to reach 11,200 by 2042. The structure is 160 ft (48.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesU.S. 270 SB N-E
CrossesS.H. 9 WB under
LocationUS 270 SB N-E; @ JCT SH 9
RouteU.S. Route 270
CountyPottawatomie County
StateOklahoma
Coordinates35.26143, -96.91969
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.5 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length160 ft (48.8 m)
Longest span63 ft (19.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2022)
Projected traffic11,200 by 2042
Trucks16%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 270 SB N-E over S.H. 9 WB under built?

It was built in 1962, making it 63 years old in 2025.

What condition is U.S. 270 SB N-E over S.H. 9 WB 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 N-E over S.H. 9 WB under carry?

About 7,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is U.S. 270 SB N-E over S.H. 9 WB under?

The structure is 160 ft (48.8 m) long with a longest span of 63 ft (19.2 m) and a deck 31 ft wide.

Who owns U.S. 270 SB N-E over S.H. 9 WB under?

It is owned by the State Highway Agency.