Coll 7137 over Niobrara River

Good

Sioux County, Nebraska · 12.5S 1W of Harrison · Structure no. C008307005P

Built: 2002; 23 years old
Condition: Good; inspected November 2023
Type: Culvert; Concrete
Length: 32 ft; 3 main spans
Daily traffic: 40; 1998 count
Owner: County; County Highway Agency

About this bridge

Coll 7137 over Niobrara River is a concrete culvert carrying Coll 7137 over Niobrara River in Sioux County, Nebraska. It was built in 2002, so it is 23 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 40 vehicles a day, projected to reach 68 by 2033. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps

CarriesColl 7137

CrossesNiobrara River

Location12.5S 1W of Harrison

RouteCounty Highway 7137

CountySioux County

StateNebraska

Coordinates42.5053, -103.8989

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.

Component	Rating	Meaning
Channel and channel protection	9 Excellent	No problems noted.
Culvert	9 Excellent	No problems noted.

Last inspectionNovember 2023

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 alignment8: Equal to present desirable criteria

Operating rating36.4 US tons

Inventory rating24.3 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckNot applicable

Main spans3

Design loadUnknown

Structure length32 ft (9.8 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 traffic40 (1998)

Projected traffic68 by 2033

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed49.7 mi (80 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—

NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7137 over Niobrara River built?

It was built in 2002, making it 23 years old in 2025.

What condition is Coll 7137 over Niobrara River 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 2023.

How much traffic does Coll 7137 over Niobrara River carry?

About 40 vehicles per day (1998 count).

How long is Coll 7137 over Niobrara River?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns Coll 7137 over Niobrara River?

It is owned by the County Highway Agency.