US Bridges

Coll 7397 over South Loup River

Good

Custer County, Nebraska · 7W 5.5N of Callaway · Structure no. C002112105

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
103 ft
1 main span
Daily traffic
50
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7397 over South Loup River is a steel stringer/multi-beam or girder carrying Coll 7397 over South Loup River in Custer County, Nebraska. It was built in 1985, so it is 40 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 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 50 vehicles a day, projected to reach 85 by 2033. The structure is 103 ft (31.4 m) long and 31 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesColl 7397
CrossesSouth Loup River
Location7W 5.5N of Callaway
RouteCounty Highway 7397
Coordinates41.3725, -100.0649
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.5 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span100 ft (30.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (1998)
Projected traffic85 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 7397 over South Loup River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Coll 7397 over South Loup 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 October 2023.

How much traffic does Coll 7397 over South Loup River carry?

About 50 vehicles per day (1998 count).

How long is Coll 7397 over South Loup River?

The structure is 103 ft (31.4 m) long with a longest span of 100 ft (30.5 m) and a deck 31 ft wide.

Who owns Coll 7397 over South Loup River?

It is owned by the County Highway Agency.