US Bridges

Coll 7206 over Niobrara River

Fair

Cherry County, Nebraska · 13S 15W of Merriman · Structure no. C001604005

Built
1984
41 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
138 ft
3 main spans
Daily traffic
40
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7206 over Niobrara River is a prestressed concrete stringer/multi-beam or girder carrying Coll 7206 over Niobrara River in Cherry County, Nebraska. It was built in 1984, so it is 41 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.

It carries about 40 vehicles a day, projected to reach 68 by 2033. The structure is 138 ft (42.1 m) long and 31 ft wide. If it were closed, the detour would be 111.8 mi (180 km).

Location

Open in Google Maps
CarriesColl 7206
CrossesNiobrara River
Location13S 15W of Merriman
RouteCounty Highway 7206
CountyCherry County
StateNebraska
Coordinates42.7331, -102.0132
Functional classRural Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
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
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 rating23.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length138 ft (42.1 m)
Longest span46 ft (14 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1998)
Projected traffic68 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed111.8 mi (180 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 Coll 7206 over Niobrara River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Coll 7206 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 January 2025.

How much traffic does Coll 7206 over Niobrara River carry?

About 40 vehicles per day (1998 count).

How long is Coll 7206 over Niobrara River?

The structure is 138 ft (42.1 m) long with a longest span of 46 ft (14 m) and a deck 31 ft wide.

Who owns Coll 7206 over Niobrara River?

It is owned by the County Highway Agency.