US Bridges

US6/N15 over Johnson Creek

Fair

Saline County, Nebraska · 3N Dorchester · Structure no. S006 28424

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
1,760
2018 count
Owner
State
State Highway Agency

About this bridge

US6/N15 over Johnson Creek is a steel stringer/multi-beam or girder carrying US6/N15 over Johnson Creek in Saline County, Nebraska. It was built in 1976, so it is 49 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 1,760 vehicles a day, roughly 16% of them trucks, projected to reach 2,816 by 2038. The structure is 92 ft (28 m) long and 43 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesUS6/N15
CrossesJohnson Creek
Location3N Dorchester
RouteU.S. Route 6
CountySaline County
StateNebraska
Coordinates40.698, -97.1217
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
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 loadHS 20
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,760 (2018)
Projected traffic2,816 by 2038
Trucks16%
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 US6/N15 over Johnson Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is US6/N15 over Johnson 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 US6/N15 over Johnson Creek carry?

About 1,760 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is US6/N15 over Johnson Creek?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 43 ft wide.

Who owns US6/N15 over Johnson Creek?

It is owned by the State Highway Agency.