US Bridges

N2430 over Salt Fork River

Fair

Woods County, Oklahoma · 1W 3.8 N of Alva · Structure no. 213180000000000

Built
1986
39 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
300
2022 count
Owner
County
County Highway Agency

About this bridge

N2430 over Salt Fork River is a prestressed concrete stringer/multi-beam or girder carrying N2430 over Salt Fork River in Woods County, Oklahoma. It was built in 1986, so it is 39 years old, younger 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 300 vehicles a day, roughly 15% of them trucks, projected to reach 480 by 2042. The structure is 165 ft (50.4 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesN2430
CrossesSalt Fork River
Location1W 3.8 N of Alva
RouteCounty Highway N2430
CountyWoods County
StateOklahoma
Coordinates36.85235, -98.6841
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating77.1 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.4 m)
Longest span55 ft (16.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic480 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$646,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2430 over Salt Fork River built?

It was built in 1986, making it 39 years old in 2025.

What condition is N2430 over Salt 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 January 2024.

How much traffic does N2430 over Salt Fork River carry?

About 300 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N2430 over Salt Fork River?

The structure is 165 ft (50.4 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.

Who owns N2430 over Salt Fork River?

It is owned by the County Highway Agency.