US Bridges

N15 over Stream

Good

Butler County, Nebraska · 10N Seward · Structure no. S015 07669

Built
1974
51 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
2,605
2018 count
Owner
State
State Highway Agency

About this bridge

N15 over Stream is a concrete culvert carrying N15 over Stream in Butler County, Nebraska. It was built in 1974, so it is 51 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 2,605 vehicles a day, roughly 14% of them trucks, projected to reach 3,908 by 2038. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN15
CrossesStream
Location10N Seward
RouteState Highway 15
Coordinates41.0546, -97.0999
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.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 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 traffic2,605 (2018)
Projected traffic3,908 by 2038
Trucks14%
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 N15 over Stream built?

It was built in 1974, making it 51 years old in 2025.

What condition is N15 over Stream 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 2024.

How much traffic does N15 over Stream carry?

About 2,605 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is N15 over Stream?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m).

Who owns N15 over Stream?

It is owned by the State Highway Agency.