US Bridges

5736C over Belford Creek

Fair

Osage County, Oklahoma · 7 MI West of Ralston · Structure no. 086130000000000

Built
1940
85 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
112
2022 count
Owner
County
County Highway Agency

About this bridge

5736C over Belford Creek is a concrete culvert carrying 5736C over Belford Creek in Osage County, Oklahoma. It was built in 1940, so it is 85 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 112 vehicles a day, roughly 15% of them trucks, projected to reach 179 by 2042. The structure is 36 ft (11 m) long and 33 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
Carries5736C
CrossesBelford Creek
Location7 MI West of Ralston
RouteCounty Highway 5736C
CountyOsage County
StateOklahoma
Coordinates36.50716, -96.86643
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.8 US tons
Inventory rating31.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span11 ft (3.4 m)
Deck width33 ft (10 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112 (2022)
Projected traffic179 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

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 5736C over Belford Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 5736C over Belford 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 March 2024.

How much traffic does 5736C over Belford Creek carry?

About 112 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 5736C over Belford Creek?

The structure is 36 ft (11 m) long with a longest span of 11 ft (3.4 m) and a deck 33 ft wide.

Who owns 5736C over Belford Creek?

It is owned by the County Highway Agency.