US Bridges

County Highway over Prairie Slough

Good

Merrick County, Nebraska · 1N 1.8W Archer · Structure no. C006103205

Built
1979
46 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
35
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over Prairie Slough is a concrete culvert carrying County Highway over Prairie Slough in Merrick County, Nebraska. It was built in 1979, so it is 46 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, projected to reach 49 by 2033. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesCounty Highway
CrossesPrairie Slough
Location1N 1.8W Archer
RouteCounty Highway 32
Coordinates41.1767, -98.17
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 protection7 GoodSome minor problems.
Culvert9 ExcellentNo 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.9 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 traffic35 (2003)
Projected traffic49 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 County Highway over Prairie Slough built?

It was built in 1979, making it 46 years old in 2025.

What condition is County Highway over Prairie Slough 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 County Highway over Prairie Slough carry?

About 35 vehicles per day (2003 count).

How long is County Highway over Prairie Slough?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns County Highway over Prairie Slough?

It is owned by the County Highway Agency.