US Bridges

N.W. 178th St. over Bluff Creek

Good

Oklahoma County, Oklahoma · .3 E of Meridian Ave. · Structure no. 284070000000000

Built
2008
17 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
220 ft
4 main spans
Daily traffic
4,200
2022 count
Owner
County
County Highway Agency

About this bridge

N.W. 178th St. over Bluff Creek is a prestressed concrete tee beam carrying N.W. 178th St. over Bluff Creek 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 4,200 vehicles a day, roughly 10% of them trucks, projected to reach 6,720 by 2042. The structure is 220 ft (67.1 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN.W. 178th St.
CrossesBluff Creek
Location.3 E of Meridian Ave.
RouteCounty Highway E0940
CountyOklahoma County
StateOklahoma
Coordinates35.65306, -97.5975
Functional classRural Major 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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span55 ft (16.8 m)
Deck width65 ft (19.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2022)
Projected traffic6,720 by 2042
Trucks10%
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

OwnerCounty Highway Agency
Maintained byCounty 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$3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was N.W. 178th St. over Bluff Creek built?

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

What condition is N.W. 178th St. over Bluff Creek 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 2023.

How much traffic does N.W. 178th St. over Bluff Creek carry?

About 4,200 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N.W. 178th St. over Bluff Creek?

The structure is 220 ft (67.1 m) long with a longest span of 55 ft (16.8 m) and a deck 65 ft wide.

Who owns N.W. 178th St. over Bluff Creek?

It is owned by the County Highway Agency.