US Bridges

4502C over Mountain Fork River

Fair

McCurtain County, Oklahoma · .3S 3E of Beachton · Structure no. 031990000000000

Built
1930
95 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
150 ft
10 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

4502C over Mountain Fork River is a concrete slab carrying 4502C over Mountain Fork River in McCurtain County, Oklahoma. It was built in 1930, so it is 95 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 50 vehicles a day, roughly 15% of them trucks, projected to reach 80 by 2042. The structure is 150 ft (45.7 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries4502C
CrossesMountain Fork River
Location.3S 3E of Beachton
RouteCounty Highway 4502C
CountyMcCurtain County
StateOklahoma
Coordinates34.48651, -94.51433
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadH 10
Structure length150 ft (45.7 m)
Longest span15 ft (4.6 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks15%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$313,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 4502C over Mountain Fork River built?

It was built in 1930, making it 95 years old in 2025.

What condition is 4502C over Mountain Fork River 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 4502C over Mountain Fork River carry?

About 50 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 4502C over Mountain Fork River?

The structure is 150 ft (45.7 m) long with a longest span of 15 ft (4.6 m) and a deck 16 ft wide.

Who owns 4502C over Mountain Fork River?

It is owned by the County Highway Agency.