US Bridges

Coll 7601 over Little Blue River

GoodPosted for load

Clay County, Nebraska · JCT N74/S-18B 2S · Structure no. C001800305

Built
1969
56 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
140 ft
3 main spans
Daily traffic
120
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7601 over Little Blue River is a steel continuous stringer/multi-beam or girder carrying Coll 7601 over Little Blue River in Clay County, Nebraska. It was built in 1969, so it is 56 years old, older 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. Its operating status is: posted for load restriction.

It carries about 120 vehicles a day, projected to reach 204 by 2041. The structure is 140 ft (42.7 m) long and 28 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesColl 7601
CrossesLittle Blue River
LocationJCT N74/S-18B 2S
RouteCounty Highway 7601
Coordinates40.4083, -98.2603
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating26.5 US tons
Inventory rating16.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length140 ft (42.7 m)
Longest span68 ft (20.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (1998)
Projected traffic204 by 2041
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7601 over Little Blue River built?

It was built in 1969, making it 56 years old in 2025.

What condition is Coll 7601 over Little Blue 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 November 2024.

How much traffic does Coll 7601 over Little Blue River carry?

About 120 vehicles per day (1998 count).

How long is Coll 7601 over Little Blue River?

The structure is 140 ft (42.7 m) long with a longest span of 68 ft (20.7 m) and a deck 28 ft wide.

Who owns Coll 7601 over Little Blue River?

It is owned by the County Highway Agency.