US Bridges

12th St. over U.S. 64 / US 75 / SH 51

Fair

Tulsa County, Oklahoma · 0.5 MI E JCT I-244 · Structure no. 181290000000000

Built
1971
54 years old
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
362 ft
2 main spans
Daily traffic
2,100
2022 count
Owner
State
State Highway Agency

About this bridge

12th St. over U.S. 64 / US 75 / SH 51 is a steel continuous girder and floorbeam system carrying 12th St. over U.S. 64 / US 75 / SH 51 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 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 2,100 vehicles a day, roughly 5% of them trucks, projected to reach 3,360 by 2042. The structure is 362 ft (110.3 m) long and 63 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries12th St.
CrossesU.S. 64 / US 75 / SH 51
Location0.5 MI E JCT I-244
RouteCity Street 0
CountyTulsa County
StateOklahoma
Coordinates36.14517, -95.99508
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length362 ft (110.3 m)
Longest span134 ft (40.8 m)
Deck width63 ft (19.2 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2022)
Projected traffic3,360 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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$7.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 12th St. over U.S. 64 / US 75 / SH 51 built?

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

What condition is 12th St. over U.S. 64 / US 75 / SH 51 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 June 2023.

How much traffic does 12th St. over U.S. 64 / US 75 / SH 51 carry?

About 2,100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 12th St. over U.S. 64 / US 75 / SH 51?

The structure is 362 ft (110.3 m) long with a longest span of 134 ft (40.8 m) and a deck 63 ft wide.

Who owns 12th St. over U.S. 64 / US 75 / SH 51?

It is owned by the State Highway Agency.