US Bridges

N4370 over Creek

FairPosted for load

Craig County, Oklahoma · 4.NW of Vinita · Structure no. 050550000000000

Built
1937
88 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N4370 over Creek is a concrete continuous slab carrying N4370 over Creek in Craig County, Oklahoma. It was built in 1937, so it is 88 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 26 ft (7.9 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesN4370
CrossesCreek
Location4.NW of Vinita
RouteCounty Highway N4370
Coordinates36.69934, -95.21553
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.6 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.6 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$246,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4370 over Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is N4370 over 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 August 2024.

How much traffic does N4370 over Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4370 over Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.6 m) and a deck 32 ft wide.

Who owns N4370 over Creek?

It is owned by the County Highway Agency.