US Bridges

U.S. 75 SB over S.H. 20 under

Good

Tulsa County, Oklahoma · JCT SH 20 · Structure no. 180760000000000

Built
1971
54 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
166 ft
2 main spans
Daily traffic
10,600
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 75 SB over S.H. 20 under is a prestressed concrete stringer/multi-beam or girder carrying U.S. 75 SB over S.H. 20 under in Tulsa County, Oklahoma. It was built in 1971, so it is 54 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 10,600 vehicles a day, roughly 8% of them trucks, projected to reach 16,960 by 2042. The structure is 166 ft (50.7 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesU.S. 75 SB
CrossesS.H. 20 under
LocationJCT SH 20
RouteU.S. Route 75
CountyTulsa County
StateOklahoma
Coordinates36.36543, -95.92089
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.5 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length166 ft (50.7 m)
Longest span85 ft (25.9 m)
Deck width44 ft (13.3 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2022)
Projected traffic16,960 by 2042
Trucks8%
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$3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 75 SB over S.H. 20 under built?

It was built in 1971, making it 54 years old in 2025.

What condition is U.S. 75 SB over S.H. 20 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 October 2024.

How much traffic does U.S. 75 SB over S.H. 20 under carry?

About 10,600 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is U.S. 75 SB over S.H. 20 under?

The structure is 166 ft (50.7 m) long with a longest span of 85 ft (25.9 m) and a deck 44 ft wide.

Who owns U.S. 75 SB over S.H. 20 under?

It is owned by the State Highway Agency.