US Bridges

N12 over Lime Creek

Fair

Dixon County, Nebraska · 1.5W Maskell · Structure no. S012 21579

Built
1963
62 years old, rebuilt 1996
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
127 ft
3 main spans
Daily traffic
1,415
2018 count
Owner
State
State Highway Agency

About this bridge

N12 over Lime Creek is a prestressed concrete stringer/multi-beam or girder carrying N12 over Lime Creek in Dixon County, Nebraska. It was built in 1963 and reconstructed in 1996, so it is 62 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 1,415 vehicles a day, roughly 10% of them trucks, projected to reach 1,981 by 2038. The structure is 127 ft (38.7 m) long and 38 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesN12
CrossesLime Creek
Location1.5W Maskell
RouteState Highway 12
Coordinates42.6911, -97.0026
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 rating76.1 US tons
Inventory rating45.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length127 ft (38.7 m)
Longest span42 ft (12.8 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,415 (2018)
Projected traffic1,981 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 N12 over Lime Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1996.

What condition is N12 over Lime 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 September 2024.

How much traffic does N12 over Lime Creek carry?

About 1,415 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N12 over Lime Creek?

The structure is 127 ft (38.7 m) long with a longest span of 42 ft (12.8 m) and a deck 38 ft wide.

Who owns N12 over Lime Creek?

It is owned by the State Highway Agency.