US Bridges

County Highway over Warm Slough

Good

Merrick County, Nebraska · 1.5W Central City · Structure no. C006102705

Built
1999
26 years old
Condition
Good
inspected October 2021
Type
Culvert
Steel
Length
25 ft
5 main spans
Daily traffic
50
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over Warm Slough is a steel culvert carrying County Highway over Warm Slough in Merrick County, Nebraska. It was built in 1999, so it is 26 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 50 vehicles a day, projected to reach 85 by 2033. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesWarm Slough
Location1.5W Central City
RouteCounty Highway 27
CountyMerrick County
StateNebraska
Coordinates41.1067, -98.0383
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 inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans5
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2003)
Projected traffic85 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 Warm Slough built?

It was built in 1999, making it 26 years old in 2025.

What condition is County Highway over Warm 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 October 2021.

How much traffic does County Highway over Warm Slough carry?

About 50 vehicles per day (2003 count).

How long is County Highway over Warm Slough?

The structure is 25 ft (7.6 m) long with a longest span of 5 ft (1.5 m).

Who owns County Highway over Warm Slough?

It is owned by the County Highway Agency.