US Bridges

Coll 7761 over Big Blue River

Good

Seward County, Nebraska · .5E of Staplehurst · Structure no. C008012320

Built
1989
36 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
117 ft
3 main spans
Daily traffic
165
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7761 over Big Blue River is a concrete continuous slab carrying Coll 7761 over Big Blue River in Seward County, Nebraska. It was built in 1989, so it is 36 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 165 vehicles a day, projected to reach 280 by 2033. The structure is 117 ft (35.7 m) long and 30 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesColl 7761
CrossesBig Blue River
Location.5E of Staplehurst
RouteCounty Highway 7761
Coordinates40.9766, -97.1583
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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.1 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length117 ft (35.7 m)
Longest span46 ft (14 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (1998)
Projected traffic280 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 7761 over Big Blue River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Coll 7761 over 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 August 2024.

How much traffic does Coll 7761 over Big Blue River carry?

About 165 vehicles per day (1998 count).

How long is Coll 7761 over Big Blue River?

The structure is 117 ft (35.7 m) long with a longest span of 46 ft (14 m) and a deck 30 ft wide.

Who owns Coll 7761 over Big Blue River?

It is owned by the County Highway Agency.