US Bridges

N14 over School Creek

Fair

Clay County, Nebraska · 7S Clay/Hamilton Co. Line · Structure no. S014 04519

Built
1957
68 years old, rebuilt 1989
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
1,660
2018 count
Owner
State
State Highway Agency

About this bridge

N14 over School Creek is a concrete continuous slab carrying N14 over School Creek in Clay County, Nebraska. It was built in 1957 and reconstructed in 1989, so it is 68 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 1,660 vehicles a day, roughly 18% of them trucks, projected to reach 2,158 by 2038. The structure is 81 ft (24.7 m) long and 38 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesN14
CrossesSchool Creek
Location7S Clay/Hamilton Co. Line
RouteState Highway 14
CountyClay County
StateNebraska
Coordinates40.5901, -97.9952
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating60.6 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span33 ft (10.1 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,660 (2018)
Projected traffic2,158 by 2038
Trucks18%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N14 over School Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1989.

What condition is N14 over School 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 August 2023.

How much traffic does N14 over School Creek carry?

About 1,660 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is N14 over School Creek?

The structure is 81 ft (24.7 m) long with a longest span of 33 ft (10.1 m) and a deck 38 ft wide.

Who owns N14 over School Creek?

It is owned by the State Highway Agency.