US Bridges

County Road 417 over Nppid Canal

Good

Dawson County, Nebraska · 5E 2N of Gothenburg · Structure no. C002431910

Built
1935
90 years old, rebuilt 1972
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
40
2003 count
Owner
Local
Other Local Agency

About this bridge

County Road 417 over Nppid Canal is a concrete culvert carrying County Road 417 over Nppid Canal in Dawson County, Nebraska. It was built in 1935 and reconstructed in 1972, so it is 90 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 56 by 2033. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesCounty Road 417
CrossesNppid Canal
Location5E 2N of Gothenburg
RouteCounty Highway 319
CountyDawson County
StateNebraska
Coordinates40.9617, -100.0517
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than 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 loadUnknown
Structure length28 ft (8.5 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2003)
Projected traffic56 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 Road 417 over Nppid Canal built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1972.

What condition is County Road 417 over Nppid Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does County Road 417 over Nppid Canal carry?

About 40 vehicles per day (2003 count).

How long is County Road 417 over Nppid Canal?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m).

Who owns County Road 417 over Nppid Canal?

It is owned by the Other Local Agency.