US Bridges

N15 over Bone Creek

Good

Butler County, Nebraska · 2SW Octavia · Structure no. S015 09916

Built
2000
25 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
2,405
2018 count
Owner
State
State Highway Agency

About this bridge

N15 over Bone Creek is a concrete continuous slab carrying N15 over Bone Creek in Butler County, Nebraska. It was built in 2000, so it is 25 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 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 2,405 vehicles a day, roughly 17% of them trucks, projected to reach 3,247 by 2038. The structure is 102 ft (31.1 m) long and 46 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN15
CrossesBone Creek
Location2SW Octavia
RouteState Highway 15
Coordinates41.336, -97.0984
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 protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.6 US tons
Inventory rating54 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length102 ft (31.1 m)
Longest span40 ft (12.2 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,405 (2018)
Projected traffic3,247 by 2038
Trucks17%
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 Bone Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is N15 over Bone 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 Bone Creek carry?

About 2,405 vehicles per day (2018 count), of which roughly 17% are trucks.

How long is N15 over Bone Creek?

The structure is 102 ft (31.1 m) long with a longest span of 40 ft (12.2 m) and a deck 46 ft wide.

Who owns N15 over Bone Creek?

It is owned by the State Highway Agency.