US Bridges

S.H. 99 over Little Sandy Creek

Good

Johnston County, Oklahoma · 2.4 MI S JCT SH7 · Structure no. 032740000000000

Built
1931
94 years old, rebuilt 2018
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
22 ft
3 main spans
Daily traffic
1,500
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 99 over Little Sandy Creek is a concrete culvert carrying S.H. 99 over Little Sandy Creek in Johnston County, Oklahoma. It was built in 1931 and reconstructed in 2018, so it is 94 years old, older 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 1,500 vehicles a day, roughly 16% of them trucks, projected to reach 2,400 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 31.7 mi (51 km).

CarriesS.H. 99
CrossesLittle Sandy Creek
Location2.4 MI S JCT SH7
RouteState Highway 99
Coordinates34.32334, -96.66564
Functional classRural Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length22 ft (6.7 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2022)
Projected traffic2,400 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 99 over Little Sandy Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 2018.

What condition is S.H. 99 over Little Sandy 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 May 2024.

How much traffic does S.H. 99 over Little Sandy Creek carry?

About 1,500 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 99 over Little Sandy Creek?

The structure is 22 ft (6.7 m) long with a longest span of 6 ft (1.8 m).

Who owns S.H. 99 over Little Sandy Creek?

It is owned by the State Highway Agency.