US Bridges

N97 over North Loup River

FairPosted for load

Cherry County, Nebraska · 25N Mullen · Structure no. S097 09250

Built
1982
43 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
78 ft
3 main spans
Daily traffic
95
2018 count
Owner
State
State Highway Agency

About this bridge

N97 over North Loup River is a wood or timber stringer/multi-beam or girder carrying N97 over North Loup River in Cherry County, Nebraska. It was built in 1982, so it is 43 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 95 vehicles a day, roughly 11% of them trucks, projected to reach 166 by 2038. The structure is 78 ft (23.8 m) long and 29 ft wide. If it were closed, the detour would be 118.1 mi (190 km).

CarriesN97
CrossesNorth Loup River
Location25N Mullen
RouteState Highway 97
Coordinates42.3995, -101.0306
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating33.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length78 ft (23.8 m)
Longest span26 ft (7.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2018)
Projected traffic166 by 2038
Trucks11%
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 N97 over North Loup River built?

It was built in 1982, making it 43 years old in 2025.

What condition is N97 over North Loup 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 March 2025.

How much traffic does N97 over North Loup River carry?

About 95 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is N97 over North Loup River?

The structure is 78 ft (23.8 m) long with a longest span of 26 ft (7.9 m) and a deck 29 ft wide.

Who owns N97 over North Loup River?

It is owned by the State Highway Agency.