US Bridges

N.W. 36th St. over I-44 under

Good

Oklahoma County, Oklahoma · 3.3 MI N I-40 · Structure no. 185920000000000

Built
1973
52 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
285 ft
3 main spans
Daily traffic
5,000
2022 count
Owner
State
State Highway Agency

About this bridge

N.W. 36th St. over I-44 under is a steel continuous stringer/multi-beam or girder carrying N.W. 36th St. over I-44 under in Oklahoma County, Oklahoma. It was built in 1973, so it is 52 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 5,000 vehicles a day, roughly 5% of them trucks, projected to reach 8,000 by 2042. The structure is 285 ft (86.9 m) long and 73 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesN.W. 36th St.
CrossesI-44 under
Location3.3 MI N I-40
RouteCity Street 0
CountyOklahoma County
StateOklahoma
Coordinates35.50764, -97.57562
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating29.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length285 ft (86.9 m)
Longest span116 ft (35.4 m)
Deck width73 ft (22.4 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2022)
Projected traffic8,000 by 2042
Trucks5%
Lanes on structure5
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$6.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was N.W. 36th St. over I-44 under built?

It was built in 1973, making it 52 years old in 2025.

What condition is N.W. 36th St. over I-44 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 2023.

How much traffic does N.W. 36th St. over I-44 under carry?

About 5,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is N.W. 36th St. over I-44 under?

The structure is 285 ft (86.9 m) long with a longest span of 116 ft (35.4 m) and a deck 73 ft wide.

Who owns N.W. 36th St. over I-44 under?

It is owned by the State Highway Agency.