US Bridges

N15 over N Fk Swan Creek

Fair

Saline County, Nebraska · 4N Western · Structure no. S015 03097

Built
1961
64 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
1,270
2018 count
Owner
State
State Highway Agency

About this bridge

N15 over N Fk Swan Creek is a steel stringer/multi-beam or girder carrying N15 over N Fk Swan Creek in Saline County, Nebraska. It was built in 1961, so it is 64 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,270 vehicles a day, roughly 23% of them trucks, projected to reach 1,905 by 2038. The structure is 92 ft (28 m) long and 33 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesN15
CrossesN Fk Swan Creek
Location4N Western
RouteState Highway 15
CountySaline County
StateNebraska
Coordinates40.4484, -97.1793
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.7 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,270 (2018)
Projected traffic1,905 by 2038
Trucks23%
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 N Fk Swan Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is N15 over N Fk Swan Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does N15 over N Fk Swan Creek carry?

About 1,270 vehicles per day (2018 count), of which roughly 23% are trucks.

How long is N15 over N Fk Swan Creek?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 33 ft wide.

Who owns N15 over N Fk Swan Creek?

It is owned by the State Highway Agency.