US Bridges

N89 over Sappa Creek

Good

Harlan County, Nebraska · 1W Stamford · Structure no. S089 05367

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
345
2018 count
Owner
State
State Highway Agency

About this bridge

N89 over Sappa Creek is a concrete culvert carrying N89 over Sappa Creek in Harlan County, Nebraska. It was built in 2017, so it is 8 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 345 vehicles a day, roughly 13% of them trucks, projected to reach 449 by 2038. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
CarriesN89
CrossesSappa Creek
Location1W Stamford
RouteState Highway 89
CountyHarlan County
StateNebraska
Coordinates40.1316, -99.6141
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 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 rating80.5 US tons
Inventory rating60.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length38 ft (11.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic345 (2018)
Projected traffic449 by 2038
Trucks13%
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 N89 over Sappa Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is N89 over Sappa 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 April 2023.

How much traffic does N89 over Sappa Creek carry?

About 345 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is N89 over Sappa Creek?

The structure is 38 ft (11.5 m) long with a longest span of 12 ft (3.7 m).

Who owns N89 over Sappa Creek?

It is owned by the State Highway Agency.