US Bridges

Coll 7748 over Walnut Creek

Good

Seward County, Nebraska · 2.2E of Beaver Crossing · Structure no. C008004015

Built
1997
28 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
72 ft
3 main spans
Daily traffic
185
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7748 over Walnut Creek is a concrete continuous slab carrying Coll 7748 over Walnut Creek in Seward County, Nebraska. It was built in 1997, so it is 28 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 185 vehicles a day, projected to reach 314 by 2033. The structure is 72 ft (21.9 m) long and 30 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesColl 7748
CrossesWalnut Creek
Location2.2E of Beaver Crossing
RouteCounty Highway 7748
Coordinates40.771, -97.2326
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 inspectionOctober 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 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 loadHS 20
Structure length72 ft (21.9 m)
Longest span28 ft (8.5 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (1998)
Projected traffic314 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 7748 over Walnut Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Coll 7748 over Walnut Creek 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 2024.

How much traffic does Coll 7748 over Walnut Creek carry?

About 185 vehicles per day (1998 count).

How long is Coll 7748 over Walnut Creek?

The structure is 72 ft (21.9 m) long with a longest span of 28 ft (8.5 m) and a deck 30 ft wide.

Who owns Coll 7748 over Walnut Creek?

It is owned by the County Highway Agency.