US Bridges

3526C over Big Sandy Creek

Fair

Johnston County, Oklahoma · 5.1N & 2.9E of Tishamingo · Structure no. 068280000000000

Built
1939
86 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
640
2022 count
Owner
County
County Highway Agency

About this bridge

3526C over Big Sandy Creek is a concrete continuous slab carrying 3526C over Big Sandy Creek in Johnston County, Oklahoma. It was built in 1939, so it is 86 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.

It carries about 640 vehicles a day, roughly 15% of them trucks, projected to reach 1,024 by 2042. The structure is 24 ft (7.3 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries3526C
CrossesBig Sandy Creek
Location5.1N & 2.9E of Tishamingo
RouteCounty Highway 3526C
CountyJohnston County
StateOklahoma
Coordinates34.31038, -96.62948
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2022)
Projected traffic1,024 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 3526C over Big Sandy Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is 3526C over Big Sandy 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 April 2023.

How much traffic does 3526C over Big Sandy Creek carry?

About 640 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 3526C over Big Sandy Creek?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 22 ft wide.

Who owns 3526C over Big Sandy Creek?

It is owned by the County Highway Agency.