US Bridges

Coll 7486 over Cottonwood Creek

Good

Valley County, Nebraska · 2.5N 2W Arcadia · Structure no. C008804005

Built
1980
45 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
80
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7486 over Cottonwood Creek is a concrete culvert carrying Coll 7486 over Cottonwood Creek in Valley County, Nebraska. It was built in 1980, so it is 45 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, projected to reach 80 by 2033. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 18.6 mi (30 km).

CarriesColl 7486
CrossesCottonwood Creek
Location2.5N 2W Arcadia
RouteCounty Highway 7486
Coordinates41.4667, -99.1717
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (1998)
Projected traffic80 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7486 over Cottonwood Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Coll 7486 over Cottonwood 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 November 2024.

How much traffic does Coll 7486 over Cottonwood Creek carry?

About 80 vehicles per day (1998 count).

How long is Coll 7486 over Cottonwood Creek?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Coll 7486 over Cottonwood Creek?

It is owned by the County Highway Agency.