US Bridges

IRR N4740 (0144C) over Sally Bull Creek

FairPosted for load

Adair County, Oklahoma · 6.9S 3E of Stilwell · Structure no. 182420000000000

Built
1972
53 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
65 ft
4 main spans
Daily traffic
450
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N4740 (0144C) over Sally Bull Creek is a concrete culvert carrying IRR N4740 (0144C) over Sally Bull Creek in Adair County, Oklahoma. It was built in 1972, so it is 53 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. Its operating status is: posted for load restriction.

It carries about 450 vehicles a day, roughly 15% of them trucks, projected to reach 720 by 2042. The structure is 65 ft (19.8 m) long and 26 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

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CarriesIRR N4740 (0144C)
CrossesSally Bull Creek
Location6.9S 3E of Stilwell
RouteCounty Highway N4740
CountyAdair County
StateOklahoma
Coordinates35.71108, -94.57721
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.9 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span17 ft (5.2 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2022)
Projected traffic720 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR N4740 (0144C) over Sally Bull Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is IRR N4740 (0144C) over Sally Bull 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 July 2023.

How much traffic does IRR N4740 (0144C) over Sally Bull Creek carry?

About 450 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR N4740 (0144C) over Sally Bull Creek?

The structure is 65 ft (19.8 m) long with a longest span of 17 ft (5.2 m) and a deck 26 ft wide.

Who owns IRR N4740 (0144C) over Sally Bull Creek?

It is owned by the County Highway Agency.