US Bridges

N57 over Butterfly Creek

Fair

Stanton County, Nebraska · 8S Stanton · Structure no. S057 00859

Built
1941
84 years old, rebuilt 1962
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
1,140
2018 count
Owner
State
State Highway Agency

About this bridge

N57 over Butterfly Creek is a concrete culvert carrying N57 over Butterfly Creek in Stanton County, Nebraska. It was built in 1941 and reconstructed in 1962, so it is 84 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 1,140 vehicles a day, roughly 10% of them trucks, projected to reach 1,767 by 2038. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesN57
CrossesButterfly Creek
Location8S Stanton
RouteState Highway 57
CountyStanton County
StateNebraska
Coordinates41.8385, -97.2138
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,140 (2018)
Projected traffic1,767 by 2038
Trucks10%
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 N57 over Butterfly Creek built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1962.

What condition is N57 over Butterfly 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 June 2023.

How much traffic does N57 over Butterfly Creek carry?

About 1,140 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N57 over Butterfly Creek?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns N57 over Butterfly Creek?

It is owned by the State Highway Agency.