US Bridges

N88 over Willow Creek

Good

Banner County, Nebraska · Njct N71/N88 4.6W · Structure no. S088 01491

Built
1994
31 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
735
2018 count
Owner
State
State Highway Agency

About this bridge

N88 over Willow Creek is a concrete culvert carrying N88 over Willow Creek in Banner County, Nebraska. It was built in 1994, so it is 31 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 735 vehicles a day, roughly 16% of them trucks, projected to reach 919 by 2038. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 37.3 mi (60 km).

CarriesN88
CrossesWillow Creek
LocationNjct N71/N88 4.6W
RouteState Highway 88
Coordinates41.6405, -103.7647
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic735 (2018)
Projected traffic919 by 2038
Trucks16%
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

OwnerState Highway Agency
Maintained byState 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 N88 over Willow Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is N88 over Willow 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 September 2021.

How much traffic does N88 over Willow Creek carry?

About 735 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is N88 over Willow Creek?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns N88 over Willow Creek?

It is owned by the State Highway Agency.