US Bridges

0421C over Beaver River Br.

FairPosted for load

Beaver County, Oklahoma · 6. N 2.8 W of Balko · Structure no. 171260000000000

Built
1968
57 years old, rebuilt 1989
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

0421C over Beaver River Br. is a steel stringer/multi-beam or girder carrying 0421C over Beaver River Br. in Beaver County, Oklahoma. It was built in 1968 and reconstructed in 1989, so it is 57 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, roughly 15% of them trucks, projected to reach 40 by 2042. The structure is 36 ft (11 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries0421C
CrossesBeaver River Br.
Location6. N 2.8 W of Balko
RouteCounty Highway 421C
CountyBeaver County
StateOklahoma
Coordinates36.70341, -100.87961
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating18 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic40 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$294,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 0421C over Beaver River Br. built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1989.

What condition is 0421C over Beaver River Br. 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 0421C over Beaver River Br. carry?

About 25 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 0421C over Beaver River Br.?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 24 ft wide.

Who owns 0421C over Beaver River Br.?

It is owned by the County Highway Agency.