US Bridges

N11 over Mira Creek

Good

Valley County, Nebraska · 0NW of North Loup · Structure no. S011 06360

Built
2019
6 years old
Condition
Good
inspected November 2022
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
1,950
2018 count
Owner
State
State Highway Agency

About this bridge

N11 over Mira Creek is a concrete continuous slab carrying N11 over Mira Creek in Valley County, Nebraska. It was built in 2019, so it is 6 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,950 vehicles a day, roughly 10% of them trucks, projected to reach 2,535 by 2038. The structure is 110 ft (33.5 m) long and 43 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesN11
CrossesMira Creek
Location0NW of North Loup
RouteState Highway 11
Coordinates41.4983, -98.7799
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating41.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length110 ft (33.5 m)
Longest span44 ft (13.4 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,950 (2018)
Projected traffic2,535 by 2038
Trucks10%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N11 over Mira Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is N11 over Mira Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2022.

How much traffic does N11 over Mira Creek carry?

About 1,950 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is N11 over Mira Creek?

The structure is 110 ft (33.5 m) long with a longest span of 44 ft (13.4 m) and a deck 43 ft wide.

Who owns N11 over Mira Creek?

It is owned by the State Highway Agency.