US Bridges

N4330 over Squaw Creek

Good

Mayes County, Oklahoma · 5S of Adair · Structure no. 306860000000000

Built
2012
13 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

N4330 over Squaw Creek is a concrete culvert carrying N4330 over Squaw Creek in Mayes County, Oklahoma. It was built in 2012, so it is 13 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2042. The structure is 33 ft (10 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesN4330
CrossesSquaw Creek
Location5S of Adair
RouteCounty Highway N4330
Coordinates36.36354, -95.29192
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length33 ft (10 m)
Longest span10 ft (3 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic40 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4330 over Squaw Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is N4330 over Squaw 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 April 2023.

How much traffic does N4330 over Squaw Creek carry?

About 25 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4330 over Squaw Creek?

The structure is 33 ft (10 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns N4330 over Squaw Creek?

It is owned by the County Highway Agency.