0406C over Beaver River Br.

GoodPosted for load

Beaver County, Oklahoma · 4. E 9.5 N of Balko · Structure no. 103510000000000

Built: 1946; 79 years old
Condition: Good; inspected November 2024
Type: Culvert; Concrete
Length: 22 ft; 2 main spans
Daily traffic: 100; 2022 count
Owner: County; County Highway Agency

About this bridge

0406C over Beaver River Br. is a concrete culvert carrying 0406C over Beaver River Br. in Beaver County, Oklahoma. It was built in 1946, so it is 79 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps

Carries0406C

CrossesBeaver River Br.

Location4. E 9.5 N of Balko

RouteCounty Highway 406C

CountyBeaver County

StateOklahoma

Coordinates36.75406, -100.75665

Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	7 Good	Some minor problems.

Last inspectionNovember 2024

Inspection intervalevery 24 months

Operating statusPosted for load restriction

ScourCountermeasures installed to correct a previously existing problem

Structural evaluation5: 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 rating36 US tons

Inventory rating21.1 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans2

Design loadH 20

Structure length22 ft (6.7 m)

Longest span10 ft (3 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 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 closed3.1 mi (5 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 0406C over Beaver River Br. built?

It was built in 1946, making it 79 years old in 2025.

What condition is 0406C over Beaver River Br. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does 0406C over Beaver River Br. carry?

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

How long is 0406C over Beaver River Br.?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns 0406C over Beaver River Br.?

It is owned by the County Highway Agency.