US Bridges

Coll 7724 over Silver Creek

Good

Jefferson County, Nebraska · 1.5E 3.5S of Thompson · Structure no. C004824810

Built
2012
13 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
15
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7724 over Silver Creek is a steel stringer/multi-beam or girder carrying Coll 7724 over Silver Creek in Jefferson County, Nebraska. It was built in 2012, so it is 13 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 15 vehicles a day, projected to reach 25 by 2033. The structure is 40 ft (12.2 m) long and 29 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
CarriesColl 7724
CrossesSilver Creek
Location1.5E 3.5S of Thompson
RouteCounty Highway 7724
CountyJefferson County
StateNebraska
Coordinates40.0165, -97.2289
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (1998)
Projected traffic25 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7724 over Silver Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Coll 7724 over Silver Creek 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 7724 over Silver Creek carry?

About 15 vehicles per day (1998 count).

How long is Coll 7724 over Silver Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 29 ft wide.

Who owns Coll 7724 over Silver Creek?

It is owned by the County Highway Agency.