US Bridges

N15 over So Fk Swan CR Trib

Good

Jefferson County, Nebraska · 10N Fairbury · Structure no. S015 02037

Built
2020
5 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
2,120
2018 count
Owner
State
State Highway Agency

About this bridge

N15 over So Fk Swan CR Trib is a concrete culvert carrying N15 over So Fk Swan CR Trib in Jefferson County, Nebraska. It was built in 2020, so it is 5 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 2,120 vehicles a day, roughly 18% of them trucks, projected to reach 2,756 by 2038. The structure is 40 ft (12.1 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesN15
CrossesSo Fk Swan CR Trib
Location10N Fairbury
RouteState Highway 15
CountyJefferson County
StateNebraska
Coordinates40.295, -97.1798
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.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating54 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length40 ft (12.1 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,120 (2018)
Projected traffic2,756 by 2038
Trucks18%
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 So Fk Swan CR Trib built?

It was built in 2020, making it 5 years old in 2025.

What condition is N15 over So Fk Swan CR Trib 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 August 2024.

How much traffic does N15 over So Fk Swan CR Trib carry?

About 2,120 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is N15 over So Fk Swan CR Trib?

The structure is 40 ft (12.1 m) long with a longest span of 13 ft (3.9 m).

Who owns N15 over So Fk Swan CR Trib?

It is owned by the State Highway Agency.