US Bridges

N15 over US30

Good

Colfax County, Nebraska · .5N Schuyler · Structure no. S015 10949

Built
2002
23 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
158 ft
2 main spans
Daily traffic
3,845
2018 count
Owner
State
State Highway Agency

About this bridge

N15 over US30 is a prestressed concrete stringer/multi-beam or girder carrying N15 over US30 in Colfax County, Nebraska. It was built in 2002, so it is 23 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 3,845 vehicles a day, roughly 12% of them trucks, projected to reach 4,422 by 2038. The structure is 158 ft (48.2 m) long and 54 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN15
CrossesUS30
Location.5N Schuyler
RouteState Highway 15
Coordinates41.4666, -97.0596
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.1 US tons
Inventory rating38.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length158 ft (48.2 m)
Longest span78 ft (23.8 m)
Deck width54 ft (16.6 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,845 (2018)
Projected traffic4,422 by 2038
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N15 over US30 built?

It was built in 2002, making it 23 years old in 2025.

What condition is N15 over US30 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 N15 over US30 carry?

About 3,845 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is N15 over US30?

The structure is 158 ft (48.2 m) long with a longest span of 78 ft (23.8 m) and a deck 54 ft wide.

Who owns N15 over US30?

It is owned by the State Highway Agency.