US Bridges

U.S. 177 over Little River

Fair

Pottawatomie County, Oklahoma · 6.4 MI S JCT SH 9 · Structure no. 170370000000000

Built
1967
58 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
408 ft
3 main spans
Daily traffic
5,800
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 177 over Little River is a steel continuous stringer/multi-beam or girder carrying U.S. 177 over Little River in Pottawatomie County, Oklahoma. It was built in 1967, so it is 58 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 5 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 5,800 vehicles a day, roughly 16% of them trucks, projected to reach 9,280 by 2042. The structure is 408 ft (124.4 m) long and 31 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

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CarriesU.S. 177
CrossesLittle River
Location6.4 MI S JCT SH 9
RouteU.S. Route 177
CountyPottawatomie County
StateOklahoma
Coordinates35.17197, -96.93201
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length408 ft (124.4 m)
Longest span110 ft (33.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,800 (2022)
Projected traffic9,280 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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$4.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 177 over Little River built?

It was built in 1967, making it 58 years old in 2025.

What condition is U.S. 177 over Little River 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 February 2024.

How much traffic does U.S. 177 over Little River carry?

About 5,800 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is U.S. 177 over Little River?

The structure is 408 ft (124.4 m) long with a longest span of 110 ft (33.5 m) and a deck 31 ft wide.

Who owns U.S. 177 over Little River?

It is owned by the State Highway Agency.