US Bridges

Westport Rd. over U.S. 64 under

Good

Pawnee County, Oklahoma · 16.0 MI E SH 99 · Structure no. 190700000000000

Built
1975
50 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
191 ft
2 main spans
Daily traffic
100
2022 count
Owner
State
State Highway Agency

About this bridge

Westport Rd. over U.S. 64 under is a prestressed concrete stringer/multi-beam or girder carrying Westport Rd. over U.S. 64 under in Pawnee County, Oklahoma. It was built in 1975, so it is 50 years old, older 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 191 ft (58.1 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesWestport Rd.
CrossesU.S. 64 under
Location16.0 MI E SH 99
RouteCounty Highway 0
CountyPawnee County
StateOklahoma
Coordinates36.21628, -96.34946
Functional classRural Major Collector

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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.9 US tons
Inventory rating34.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length191 ft (58.1 m)
Longest span95 ft (29 m)
Deck width45 ft (13.8 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Westport Rd. over U.S. 64 under built?

It was built in 1975, making it 50 years old in 2025.

What condition is Westport Rd. over U.S. 64 under 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 2024.

How much traffic does Westport Rd. over U.S. 64 under carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Westport Rd. over U.S. 64 under?

The structure is 191 ft (58.1 m) long with a longest span of 95 ft (29 m) and a deck 45 ft wide.

Who owns Westport Rd. over U.S. 64 under?

It is owned by the State Highway Agency.