US Bridges

NW 50th St. over Bluff Creek

Fair

Oklahoma County, Oklahoma · W of Council · Structure no. 101110000000000

Built
1944
81 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
50 ft
4 main spans
Daily traffic
1,025
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

NW 50th St. over Bluff Creek is a concrete culvert carrying NW 50th St. over Bluff Creek in Oklahoma County, Oklahoma. It was built in 1944, so it is 81 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 5 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 1,025 vehicles a day, roughly 10% of them trucks, projected to reach 1,640 by 2042. The structure is 50 ft (15.1 m) long and 74 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNW 50th St.
CrossesBluff Creek
LocationW of Council
RouteCity Street E1030
CountyOklahoma County
StateOklahoma
Coordinates35.52222, -97.6575
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating13.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length50 ft (15.1 m)
Longest span11 ft (3.5 m)
Deck width74 ft (22.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,025 (2022)
Projected traffic1,640 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 50th St. over Bluff Creek built?

It was built in 1944, making it 81 years old in 2025.

What condition is NW 50th St. over Bluff Creek 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 June 2024.

How much traffic does NW 50th St. over Bluff Creek carry?

About 1,025 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is NW 50th St. over Bluff Creek?

The structure is 50 ft (15.1 m) long with a longest span of 11 ft (3.5 m) and a deck 74 ft wide.

Who owns NW 50th St. over Bluff Creek?

It is owned by the City or Municipal Highway Agency.