US Bridges

N4 over Liberty Creek

Fair

Nuckolls County, Nebraska · 2E Lawrence · Structure no. S004 07603

Built
2002
23 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
142 ft
1 main span
Daily traffic
575
2018 count
Owner
State
State Highway Agency

About this bridge

N4 over Liberty Creek is a prestressed concrete stringer/multi-beam or girder carrying N4 over Liberty Creek in Nuckolls County, Nebraska. It was built in 2002, so it is 23 years old, younger 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 575 vehicles a day, roughly 19% of them trucks, projected to reach 834 by 2038. The structure is 142 ft (43.3 m) long and 38 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
CarriesN4
CrossesLiberty Creek
Location2E Lawrence
RouteState Highway 4
CountyNuckolls County
StateNebraska
Coordinates40.2928, -98.2108
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 inspectionJuly 2023
Inspection intervalevery 24 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 rating91.5 US tons
Inventory rating55.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length142 ft (43.3 m)
Longest span140 ft (42.7 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic575 (2018)
Projected traffic834 by 2038
Trucks19%
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 N4 over Liberty Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is N4 over Liberty 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 July 2023.

How much traffic does N4 over Liberty Creek carry?

About 575 vehicles per day (2018 count), of which roughly 19% are trucks.

How long is N4 over Liberty Creek?

The structure is 142 ft (43.3 m) long with a longest span of 140 ft (42.7 m) and a deck 38 ft wide.

Who owns N4 over Liberty Creek?

It is owned by the State Highway Agency.