US Bridges

County Highway over N Br Mira Creek

FairPosted for load

Valley County, Nebraska · 7.5W .8N North Loup · Structure no. C008803105

Built
1965
60 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
45
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over N Br Mira Creek is a steel stringer/multi-beam or girder carrying County Highway over N Br Mira Creek in Valley County, Nebraska. It was built in 1965, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, roughly 20% of them trucks, projected to reach 76 by 2033. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesCounty Highway
CrossesN Br Mira Creek
Location7.5W .8N North Loup
RouteCounty Highway 31
CountyValley County
StateNebraska
Coordinates41.5142, -98.9244
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.9 US tons
Inventory rating13.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2003)
Projected traffic76 by 2033
Trucks20%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over N Br Mira Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Highway over N Br Mira Creek 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 November 2024.

How much traffic does County Highway over N Br Mira Creek carry?

About 45 vehicles per day (2003 count), of which roughly 20% are trucks.

How long is County Highway over N Br Mira Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns County Highway over N Br Mira Creek?

It is owned by the County Highway Agency.