US Bridges

U.S. 75 NB over 49th St. under

Fair

Tulsa County, Oklahoma · 10.2 MI N JCT SH 67 · Structure no. 182670000000000

Built
1972
53 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
102 ft
1 main span
Daily traffic
25,300
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 75 NB over 49th St. under is a steel stringer/multi-beam or girder carrying U.S. 75 NB over 49th St. under in Tulsa County, Oklahoma. It was built in 1972, so it is 53 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 25,300 vehicles a day, roughly 8% of them trucks, projected to reach 40,480 by 2042. The structure is 102 ft (31.1 m) long and 52 ft wide.

Location

Open in Google Maps
CarriesU.S. 75 NB
Crosses49th St. under
Location10.2 MI N JCT SH 67
RouteU.S. Route 75
CountyTulsa County
StateOklahoma
Coordinates36.09222, -96.00643
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.8 US tons
Inventory rating57.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width52 ft (15.9 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,300 (2022)
Projected traffic40,480 by 2042
Trucks8%
Lanes on structure3
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$2.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 75 NB over 49th St. under built?

It was built in 1972, making it 53 years old in 2025.

What condition is U.S. 75 NB over 49th St. 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 October 2024.

How much traffic does U.S. 75 NB over 49th St. under carry?

About 25,300 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is U.S. 75 NB over 49th St. under?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 52 ft wide.

Who owns U.S. 75 NB over 49th St. under?

It is owned by the State Highway Agency.