US Bridges

NW 50th St. over I-235/ R.R.Under

Good

Oklahoma County, Oklahoma · 4.7 N I-40 · Structure no. 300600000000000

Built
2018
7 years old
Condition
Good
inspected July 2024
Type
Mixed Types
Steel
Length
495 ft
2 main spans
Daily traffic
5,000
2022 count
Owner
State
State Highway Agency

About this bridge

NW 50th St. over I-235/ R.R.Under is a steel mixed types carrying NW 50th St. over I-235/ R.R.Under in Oklahoma County, Oklahoma. It was built in 2018, so it is 7 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 5,000 vehicles a day, projected to reach 8,000 by 2042. The structure is 495 ft (150.9 m) long and 73 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesNW 50th St.
CrossesI-235/ R.R.Under
Location4.7 N I-40
RouteInterstate 235
CountyOklahoma County
StateOklahoma
Coordinates35.52237, -97.51634
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable 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 rating55.3 US tons
Inventory rating42.7 US tons

Structure

Structure typeMixed Types
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+3 approach)
Design loadHL 93
Structure length495 ft (150.9 m)
Longest span152 ft (46.3 m)
Deck width73 ft (22.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2022)
Projected traffic8,000 by 2042
Trucks—
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NW 50th St. over I-235/ R.R.Under built?

It was built in 2018, making it 7 years old in 2025.

What condition is NW 50th St. over I-235/ R.R.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 July 2024.

How much traffic does NW 50th St. over I-235/ R.R.Under carry?

About 5,000 vehicles per day (2022 count).

How long is NW 50th St. over I-235/ R.R.Under?

The structure is 495 ft (150.9 m) long with a longest span of 152 ft (46.3 m) and a deck 73 ft wide.

Who owns NW 50th St. over I-235/ R.R.Under?

It is owned by the State Highway Agency.