US Bridges

N51 over Logan Creek

Fair

Burt County, Nebraska · 4E Bancroft · Structure no. S051 02305

Built
1967
58 years old, rebuilt 1996
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
252 ft
3 main spans
Daily traffic
1,815
2018 count
Owner
State
State Highway Agency

About this bridge

N51 over Logan Creek is a steel continuous stringer/multi-beam or girder carrying N51 over Logan Creek in Burt County, Nebraska. It was built in 1967 and reconstructed in 1996, so it is 58 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 1,815 vehicles a day, roughly 16% of them trucks, projected to reach 2,450 by 2038. The structure is 252 ft (76.8 m) long and 42 ft wide. If it were closed, the detour would be 118.1 mi (190 km).

CarriesN51
CrossesLogan Creek
Location4E Bancroft
RouteState Highway 51
Coordinates42.0029, -96.4912
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to 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 rating59.5 US tons
Inventory rating36.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span105 ft (32 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,815 (2018)
Projected traffic2,450 by 2038
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed118.1 mi (190 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 N51 over Logan Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1996.

What condition is N51 over Logan 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 May 2023.

How much traffic does N51 over Logan Creek carry?

About 1,815 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is N51 over Logan Creek?

The structure is 252 ft (76.8 m) long with a longest span of 105 ft (32 m) and a deck 42 ft wide.

Who owns N51 over Logan Creek?

It is owned by the State Highway Agency.