US Bridges

U.S. 75 Ramp N-W over I-444 SB under

Good

Tulsa County, Oklahoma · At JCT I-244 & I-444 · Structure no. 180330000000000

Built
1971
54 years old
Condition
Good
inspected June 2023
Type
Girder and Floorbeam System
Steel
Length
102 ft
2 main spans
Daily traffic
43,200
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 75 Ramp N-W over I-444 SB under is a steel girder and floorbeam system carrying U.S. 75 Ramp N-W over I-444 SB 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 43,200 vehicles a day, roughly 15% of them trucks, projected to reach 69,120 by 2042. The structure is 102 ft (31.2 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesU.S. 75 Ramp N-W
CrossesI-444 SB under
LocationAt JCT I-244 & I-444
RouteU.S. Route 75
CountyTulsa County
StateOklahoma
Coordinates36.15879, -95.98078
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.7 US tons
Inventory rating35.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length102 ft (31.2 m)
Longest span68 ft (20.7 m)
Deck width22 ft (6.7 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,200 (2022)
Projected traffic69,120 by 2042
Trucks15%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
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$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 75 Ramp N-W over I-444 SB under built?

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

What condition is U.S. 75 Ramp N-W over I-444 SB 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 June 2023.

How much traffic does U.S. 75 Ramp N-W over I-444 SB under carry?

About 43,200 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is U.S. 75 Ramp N-W over I-444 SB under?

The structure is 102 ft (31.2 m) long with a longest span of 68 ft (20.7 m) and a deck 22 ft wide.

Who owns U.S. 75 Ramp N-W over I-444 SB under?

It is owned by the State Highway Agency.