US Bridges

N0470 over Fork of Beaver Creek

Good

Cimarron County, Oklahoma · 4E 7.2S of SH3/171 Jct. · Structure no. 263720000000000

Built
2001
24 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
49 ft
1 main span
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N0470 over Fork of Beaver Creek is a concrete culvert carrying N0470 over Fork of Beaver Creek in Cimarron County, Oklahoma. It was built in 2001, so it is 24 years old, younger 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.

It carries about 24 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2042. The structure is 49 ft (14.9 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesN0470
CrossesFork of Beaver Creek
Location4E 7.2S of SH3/171 Jct.
RouteCounty Highway N0470
Coordinates36.65643, -102.17569
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 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
Waterway adequacy7: Better than present minimum 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 spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic38 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N0470 over Fork of Beaver Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is N0470 over Fork of Beaver Creek 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 October 2023.

How much traffic does N0470 over Fork of Beaver Creek carry?

About 24 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N0470 over Fork of Beaver Creek?

The structure is 49 ft (14.9 m) long with a longest span of 15 ft (4.6 m).

Who owns N0470 over Fork of Beaver Creek?

It is owned by the County Highway Agency.