US Bridges

N8/N15 over Little Blue River

Good

Jefferson County, Nebraska · 1S Fairbury · Structure no. S008 05189

Built
2024
1 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
561 ft
3 main spans
Daily traffic
1,860
2018 count
Owner
State
State Highway Agency

About this bridge

N8/N15 over Little Blue River is a steel continuous stringer/multi-beam or girder carrying N8/N15 over Little Blue River in Jefferson County, Nebraska. It was built in 2024, so it is 1 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 1,860 vehicles a day, roughly 10% of them trucks, projected to reach 2,232 by 2038. The structure is 561 ft (171 m) long and 47 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN8/N15
CrossesLittle Blue River
Location1S Fairbury
RouteState Highway 8
Coordinates40.1157, -97.1713
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.5 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length561 ft (171 m)
Longest span120 ft (36.6 m)
Deck width47 ft (14.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,860 (2018)
Projected traffic2,232 by 2038
Trucks10%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N8/N15 over Little Blue River built?

It was built in 2024, making it 1 years old in 2025.

What condition is N8/N15 over Little 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 June 2023.

How much traffic does N8/N15 over Little Blue River carry?

About 1,860 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N8/N15 over Little Blue River?

The structure is 561 ft (171 m) long with a longest span of 120 ft (36.6 m) and a deck 47 ft wide.

Who owns N8/N15 over Little Blue River?

It is owned by the State Highway Agency.