US Bridges

N15 over Kezar Creek

Good

Butler County, Nebraska · 20N Seward · Structure no. S015 08602

Built
1974
51 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
82 ft
3 main spans
Daily traffic
3,015
2018 count
Owner
State
State Highway Agency

About this bridge

N15 over Kezar Creek is a prestressed concrete tee beam carrying N15 over Kezar Creek 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 3,015 vehicles a day, roughly 13% of them trucks, projected to reach 4,523 by 2038. The structure is 82 ft (25 m) long and 43 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesN15
CrossesKezar Creek
Location20N Seward
RouteState Highway 15
Coordinates41.1903, -97.1012
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.4 US tons
Inventory rating34.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length82 ft (25 m)
Longest span31 ft (9.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,015 (2018)
Projected traffic4,523 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 Kezar Creek built?

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

What condition is N15 over Kezar 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 June 2024.

How much traffic does N15 over Kezar Creek carry?

About 3,015 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is N15 over Kezar Creek?

The structure is 82 ft (25 m) long with a longest span of 31 ft (9.4 m) and a deck 43 ft wide.

Who owns N15 over Kezar Creek?

It is owned by the State Highway Agency.