US Bridges

S.H. 99A over Creek

Fair

Seminole County, Oklahoma · 0.6 MI E JCT SH 99 · Structure no. 041090000000000

Built
1934
91 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
960
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 99A over Creek is a concrete culvert carrying S.H. 99A over Creek in Seminole County, Oklahoma. It was built in 1934, so it is 91 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.

It carries about 960 vehicles a day, roughly 15% of them trucks, projected to reach 1,536 by 2042. The structure is 23 ft (7 m) long and 24 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesS.H. 99A
CrossesCreek
Location0.6 MI E JCT SH 99
RouteState Highway 99A
CountySeminole County
StateOklahoma
Coordinates35.34809, -96.66045
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic960 (2022)
Projected traffic1,536 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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. 99A over Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is S.H. 99A 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 February 2024.

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

About 960 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 99A over Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns S.H. 99A over Creek?

It is owned by the State Highway Agency.