US Bridges

N8 over Plum Creek

Good

Gage County, Nebraska · 2E Barneston · Structure no. S008 08863

Built
1964
61 years old, rebuilt 1991
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
340
2018 count
Owner
State
State Highway Agency

About this bridge

N8 over Plum Creek is a concrete continuous slab carrying N8 over Plum Creek in Gage County, Nebraska. It was built in 1964 and reconstructed in 1991, so it is 61 years old, older 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 340 vehicles a day, roughly 15% of them trucks, projected to reach 391 by 2038. The structure is 110 ft (33.5 m) long and 38 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN8
CrossesPlum Creek
Location2E Barneston
RouteState Highway 8
Coordinates40.0444, -96.5404
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: 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 rating48.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length110 ft (33.5 m)
Longest span44 ft (13.4 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2018)
Projected traffic391 by 2038
Trucks15%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N8 over Plum Creek built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1991.

What condition is N8 over Plum 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 July 2024.

How much traffic does N8 over Plum Creek carry?

About 340 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is N8 over Plum Creek?

The structure is 110 ft (33.5 m) long with a longest span of 44 ft (13.4 m) and a deck 38 ft wide.

Who owns N8 over Plum Creek?

It is owned by the State Highway Agency.