US Bridges

Coll 7746 over W Fk Big Blue River

Good

Seward County, Nebraska · 4.5E 2S Beaver Crossing · Structure no. C008004415

Built
1985
40 years old
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
198 ft
4 main spans
Daily traffic
85
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7746 over W Fk Big Blue River is a concrete continuous slab carrying Coll 7746 over W Fk Big Blue River in Seward 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 85 vehicles a day, projected to reach 144 by 2033. The structure is 198 ft (60.4 m) long and 31 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesColl 7746
CrossesW Fk Big Blue River
Location4.5E 2S Beaver Crossing
RouteCounty Highway 7746
Coordinates40.7422, -97.1904
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating104.7 US tons
Inventory rating40.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length198 ft (60.4 m)
Longest span56 ft (17.1 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic85 (1998)
Projected traffic144 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7746 over W Fk Big Blue River built?

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

What condition is Coll 7746 over W Fk Big 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 October 2022.

How much traffic does Coll 7746 over W Fk Big Blue River carry?

About 85 vehicles per day (1998 count).

How long is Coll 7746 over W Fk Big Blue River?

The structure is 198 ft (60.4 m) long with a longest span of 56 ft (17.1 m) and a deck 31 ft wide.

Who owns Coll 7746 over W Fk Big Blue River?

It is owned by the County Highway Agency.