US Bridges

3530C over Little Sandy Creek

Fair

Johnston County, Oklahoma · 1 N & 3 W of Filmore · Structure no. 152830000000000

Built
1961
64 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
370
2022 count
Owner
County
County Highway Agency

About this bridge

3530C over Little Sandy Creek is a concrete culvert carrying 3530C over Little Sandy Creek in Johnston County, Oklahoma. It was built in 1961, so it is 64 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 370 vehicles a day, roughly 15% of them trucks, projected to reach 592 by 2042. The structure is 45 ft (13.6 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries3530C
CrossesLittle Sandy Creek
Location1 N & 3 W of Filmore
RouteCounty Highway 3530C
CountyJohnston County
StateOklahoma
Coordinates34.28874, -96.54877
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 protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.6 m)
Longest span14 ft (4.3 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic370 (2022)
Projected traffic592 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 3530C over Little Sandy Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is 3530C over Little 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 May 2023.

How much traffic does 3530C over Little Sandy Creek carry?

About 370 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 3530C over Little Sandy Creek?

The structure is 45 ft (13.6 m) long with a longest span of 14 ft (4.3 m) and a deck 28 ft wide.

Who owns 3530C over Little Sandy Creek?

It is owned by the County Highway Agency.