US Bridges

U.S. 412 over N. Canadian River Oflow

Fair

Woodward County, Oklahoma · 5.8 MI E JCT US 183 · Structure no. 236360000000000

Built
1992
33 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
623 ft
7 main spans
Daily traffic
2,950
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 412 over N. Canadian River Oflow is a prestressed concrete stringer/multi-beam or girder carrying U.S. 412 over N. Canadian River Oflow in Woodward County, Oklahoma. It was built in 1992, so it is 33 years old, younger 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 2,950 vehicles a day, roughly 25% of them trucks, projected to reach 4,720 by 2042. The structure is 623 ft (189.9 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesU.S. 412
CrossesN. Canadian River Oflow
Location5.8 MI E JCT US 183
RouteU.S. Route 412
CountyWoodward County
StateOklahoma
Coordinates36.43638, -99.28622
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length623 ft (189.9 m)
Longest span100 ft (30.5 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,950 (2022)
Projected traffic4,720 by 2042
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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$3.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 412 over N. Canadian River Oflow built?

It was built in 1992, making it 33 years old in 2025.

What condition is U.S. 412 over N. Canadian River Oflow 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 May 2024.

How much traffic does U.S. 412 over N. Canadian River Oflow carry?

About 2,950 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is U.S. 412 over N. Canadian River Oflow?

The structure is 623 ft (189.9 m) long with a longest span of 100 ft (30.5 m) and a deck 40 ft wide.

Who owns U.S. 412 over N. Canadian River Oflow?

It is owned by the State Highway Agency.