US Bridges

Service Road over Niobrara River

Fair

Sioux County, Nebraska · Entrance Road Toward Visi · Structure no. 6710001S0000000

Built
1985
40 years old
Condition
Fair
inspected October 2023
Type
Other
Wood or Timber
Length
26 ft
1 main span
Daily traffic
4
2011 count
Owner
Federal
National Park Service

About this bridge

Service Road over Niobrara River is a wood or timber other carrying Service Road over Niobrara River in Sioux County, Nebraska. It was built in 1985, so it is 40 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 4 vehicles a day, roughly 1% of them trucks, projected to reach 5 by 2031. The structure is 26 ft (7.8 m) long and 13 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesService Road
CrossesNiobrara River
LocationEntrance Road Toward Visi
RouteFederal Lands Road 0
Coordinates42.42165, -103.74598
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating28 US tons

Structure

Structure typeOther
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span23 ft (7 m)
Deck width13 ft (4.1 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4 (2011)
Projected traffic5 by 2031
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$900,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Service Road over Niobrara River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Service Road over Niobrara River 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 October 2023.

How much traffic does Service Road over Niobrara River carry?

About 4 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Service Road over Niobrara River?

The structure is 26 ft (7.8 m) long with a longest span of 23 ft (7 m) and a deck 13 ft wide.

Who owns Service Road over Niobrara River?

It is owned by the National Park Service.