US Bridges

Coll 7718 over N.F. Elkhorn River Tribu

Fair

Knox County, Nebraska · 2W 1.6N of Wausa · Structure no. C005407505

Built
2009
16 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
60
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7718 over N.F. Elkhorn River Tribu is a steel stringer/multi-beam or girder carrying Coll 7718 over N.F. Elkhorn River Tribu in Knox County, Nebraska. It was built in 2009, so it is 16 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 60 vehicles a day, projected to reach 60 by 2033. The structure is 33 ft (10.1 m) long and 29 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesColl 7718
CrossesN.F. Elkhorn River Tribu
Location2W 1.6N of Wausa
RouteCounty Highway 7718
CountyKnox County
StateNebraska
Coordinates42.5207, -97.5834
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.2 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (1998)
Projected traffic60 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7718 over N.F. Elkhorn River Tribu built?

It was built in 2009, making it 16 years old in 2025.

What condition is Coll 7718 over N.F. Elkhorn River Tribu in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Coll 7718 over N.F. Elkhorn River Tribu carry?

About 60 vehicles per day (1998 count).

How long is Coll 7718 over N.F. Elkhorn River Tribu?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 29 ft wide.

Who owns Coll 7718 over N.F. Elkhorn River Tribu?

It is owned by the County Highway Agency.