US Bridges

I-235 over NW 36th St. under

Good

Oklahoma County, Oklahoma · 3.8 Mi. N of I 40 · Structure no. 283110000000000

Built
2008
17 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
148 ft
1 main span
Daily traffic
83,500
2022 count
Owner
State
State Highway Agency

About this bridge

I-235 over NW 36th St. under is a steel stringer/multi-beam or girder carrying I-235 over NW 36th St. under in Oklahoma County, Oklahoma. It was built in 2008, so it is 17 years old, younger 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 83,500 vehicles a day, roughly 12% of them trucks, projected to reach 133,600 by 2042. The structure is 148 ft (45.1 m) long and 129 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-235
CrossesNW 36th St. under
Location3.8 Mi. N of I 40
RouteInterstate 235
CountyOklahoma County
StateOklahoma
Coordinates35.5081, -97.51439
Functional classUrban Principal Arterial - Interstate

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating68 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length148 ft (45.1 m)
Longest span148 ft (45.1 m)
Deck width129 ft (39.3 m)
Roadway width124 ft (37.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83,500 (2022)
Projected traffic133,600 by 2042
Trucks12%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-235 over NW 36th St. under built?

It was built in 2008, making it 17 years old in 2025.

What condition is I-235 over NW 36th St. 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 August 2024.

How much traffic does I-235 over NW 36th St. under carry?

About 83,500 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is I-235 over NW 36th St. under?

The structure is 148 ft (45.1 m) long with a longest span of 148 ft (45.1 m) and a deck 129 ft wide.

Who owns I-235 over NW 36th St. under?

It is owned by the State Highway Agency.