US Bridges

N1930 over Beaver River

Fair

Woodward County, Oklahoma · .3N of Ft Supply · Structure no. 205690000000000

Built
1983
42 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
243 ft
6 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N1930 over Beaver River is a concrete stringer/multi-beam or girder carrying N1930 over Beaver River in Woodward County, Oklahoma. It was built in 1983, so it is 42 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 243 ft (74.1 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesN1930
CrossesBeaver River
Location.3N of Ft Supply
RouteCounty Highway N1930
CountyWoodward County
StateOklahoma
Coordinates36.57726, -99.56944
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length243 ft (74.1 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$795,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N1930 over Beaver River built?

It was built in 1983, making it 42 years old in 2025.

What condition is N1930 over Beaver 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 May 2024.

How much traffic does N1930 over Beaver River carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N1930 over Beaver River?

The structure is 243 ft (74.1 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns N1930 over Beaver River?

It is owned by the County Highway Agency.