US Bridges

N23 over Plum Creek

Good

Gosper County, Nebraska · 4E Eustis · Structure no. S023 12549

Built
1959
66 years old, rebuilt 2014
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
990
2018 count
Owner
State
State Highway Agency

About this bridge

N23 over Plum Creek is a concrete continuous slab carrying N23 over Plum Creek in Gosper County, Nebraska. It was built in 1959 and reconstructed in 2014, so it is 66 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 990 vehicles a day, roughly 15% of them trucks, projected to reach 1,287 by 2038. The structure is 122 ft (37.2 m) long and 33 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesN23
CrossesPlum Creek
Location4E Eustis
RouteState Highway 23
CountyGosper County
StateNebraska
Coordinates40.6475, -99.9581
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.2 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length122 ft (37.2 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic990 (2018)
Projected traffic1,287 by 2038
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 N23 over Plum Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2014.

What condition is N23 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 April 2023.

How much traffic does N23 over Plum Creek carry?

About 990 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is N23 over Plum Creek?

The structure is 122 ft (37.2 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns N23 over Plum Creek?

It is owned by the State Highway Agency.