US Bridges

Coll 7397 over Stump Ditch

Good

Custer County, Nebraska · 14.5W 2.5S of Oconto #421 · Structure no. C002102310P

Built
1985
40 years old
Condition
Good
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
40
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7397 over Stump Ditch is a steel stringer/multi-beam or girder carrying Coll 7397 over Stump Ditch 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 40 vehicles a day, projected to reach 68 by 2033. The structure is 40 ft (12.2 m) long and 28 ft wide. If it were closed, the detour would be 99.4 mi (160 km).

Location

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CarriesColl 7397
CrossesStump Ditch
Location14.5W 2.5S of Oconto #421
RouteCounty Highway 7397
CountyCuster County
StateNebraska
Coordinates41.0983, -100.0366
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating41.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 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 closed99.4 mi (160 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 Stump Ditch built?

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

What condition is Coll 7397 over Stump Ditch 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 2022.

How much traffic does Coll 7397 over Stump Ditch carry?

About 40 vehicles per day (1998 count).

How long is Coll 7397 over Stump Ditch?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 28 ft wide.

Who owns Coll 7397 over Stump Ditch?

It is owned by the County Highway Agency.