US Bridges

NW 136th St. over Walnut Creek

Fair

Oklahoma County, Oklahoma · .2E of N Council RD · Structure no. 044070000000000

Built
1941
84 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
3,125
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

NW 136th St. over Walnut Creek is a concrete culvert carrying NW 136th St. over Walnut Creek in Oklahoma County, Oklahoma. It was built in 1941, so it is 84 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 6 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 3,125 vehicles a day, roughly 5% of them trucks, projected to reach 5,000 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNW 136th St.
CrossesWalnut Creek
Location.2E of N Council RD
RouteCity Street E0970
CountyOklahoma County
StateOklahoma
Coordinates35.60911, -97.65344
Functional classUrban Minor Arterial

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,125 (2022)
Projected traffic5,000 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
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 136th St. over Walnut Creek built?

It was built in 1941, making it 84 years old in 2025.

What condition is NW 136th St. over Walnut 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 September 2023.

How much traffic does NW 136th St. over Walnut Creek carry?

About 3,125 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is NW 136th St. over Walnut Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns NW 136th St. over Walnut Creek?

It is owned by the City or Municipal Highway Agency.