US Bridges

Coll 7778 over Dry Creek

Fair

Colfax County, Nebraska · 5S 1E Clarkson · Structure no. C001901615

Built
1979
46 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
83 ft
3 main spans
Daily traffic
40
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7778 over Dry Creek is a concrete continuous slab carrying Coll 7778 over Dry Creek in Colfax County, Nebraska. It was built in 1979, so it is 46 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 40 vehicles a day, projected to reach 68 by 2033. The structure is 83 ft (25.3 m) long and 30 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesColl 7778
CrossesDry Creek
Location5S 1E Clarkson
RouteCounty Highway 7778
CountyColfax County
StateNebraska
Coordinates41.6411, -97.1009
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length83 ft (25.3 m)
Longest span32 ft (9.8 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 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 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7778 over Dry Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Coll 7778 over Dry Creek 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 2024.

How much traffic does Coll 7778 over Dry Creek carry?

About 40 vehicles per day (1998 count).

How long is Coll 7778 over Dry Creek?

The structure is 83 ft (25.3 m) long with a longest span of 32 ft (9.8 m) and a deck 30 ft wide.

Who owns Coll 7778 over Dry Creek?

It is owned by the County Highway Agency.