US Bridges

County Highway over Superior Canal

Fair

Nuckolls County, Nebraska · East Edge Bostwick · Structure no. C006511105

Built
1947
78 years old, rebuilt 1980
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
68 ft
3 main spans
Daily traffic
40
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over Superior Canal is a steel stringer/multi-beam or girder carrying County Highway over Superior Canal in Nuckolls County, Nebraska. It was built in 1947 and reconstructed in 1980, so it is 78 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 5 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 40 vehicles a day, projected to reach 68 by 2033. The structure is 68 ft (20.7 m) long and 22 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesCounty Highway
CrossesSuperior Canal
LocationEast Edge Bostwick
RouteCounty Highway 111
CountyNuckolls County
StateNebraska
Coordinates40.0467, -98.18
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating94.8 US tons
Inventory rating57.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length68 ft (20.7 m)
Longest span29 ft (8.8 m)
Deck width22 ft (6.6 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2003)
Projected traffic68 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Highway over Superior Canal built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1980.

What condition is County Highway over Superior Canal 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 County Highway over Superior Canal carry?

About 40 vehicles per day (2003 count).

How long is County Highway over Superior Canal?

The structure is 68 ft (20.7 m) long with a longest span of 29 ft (8.8 m) and a deck 22 ft wide.

Who owns County Highway over Superior Canal?

It is owned by the County Highway Agency.