US Bridges

N22 over S Br Mira Creek

Fair

Valley County, Nebraska · 3W North Loup · Structure no. S022 00879

Built
1970
55 years old, rebuilt 2015
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
82 ft
3 main spans
Daily traffic
500
2018 count
Owner
State
State Highway Agency

About this bridge

N22 over S Br Mira Creek is a prestressed concrete tee beam carrying N22 over S Br Mira Creek in Valley County, Nebraska. It was built in 1970 and reconstructed in 2015, so it is 55 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 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 500 vehicles a day, roughly 12% of them trucks, projected to reach 725 by 2038. The structure is 82 ft (25 m) long and 35 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesN22
CrossesS Br Mira Creek
Location3W North Loup
RouteState Highway 22
Coordinates41.4882, -98.8152
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.3 US tons
Inventory rating34.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (25 m)
Longest span31 ft (9.4 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2018)
Projected traffic725 by 2038
Trucks12%
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

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 N22 over S Br Mira Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2015.

What condition is N22 over S 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 December 2024.

How much traffic does N22 over S Br Mira Creek carry?

About 500 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is N22 over S Br Mira Creek?

The structure is 82 ft (25 m) long with a longest span of 31 ft (9.4 m) and a deck 35 ft wide.

Who owns N22 over S Br Mira Creek?

It is owned by the State Highway Agency.