US Bridges

N14 over N Br Big Blue River

Good

Hamilton County, Nebraska · 6N Aurora · Structure no. S014 07081

Built
2008
17 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
2,300
2018 count
Owner
State
State Highway Agency

About this bridge

N14 over N Br Big Blue River is a concrete culvert carrying N14 over N Br Big Blue River in Hamilton County, Nebraska. It was built in 2008, so it is 17 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,300 vehicles a day, roughly 15% of them trucks, projected to reach 2,990 by 2038. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN14
CrossesN Br Big Blue River
Location6N Aurora
RouteState Highway 14
Coordinates40.9608, -97.9982
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2018)
Projected traffic2,990 by 2038
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 N14 over N Br Big Blue River built?

It was built in 2008, making it 17 years old in 2025.

What condition is N14 over N Br Big Blue River 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 July 2021.

How much traffic does N14 over N Br Big Blue River carry?

About 2,300 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is N14 over N Br Big Blue River?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns N14 over N Br Big Blue River?

It is owned by the State Highway Agency.