US Bridges

N14 over Merriman Creek

Good

Antelope County, Nebraska · JCT US20/N14 6.2N · Structure no. S014 17709

Built
1978
47 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
905
2018 count
Owner
State
State Highway Agency

About this bridge

N14 over Merriman Creek is a concrete culvert carrying N14 over Merriman Creek in Antelope County, Nebraska. It was built in 1978, so it is 47 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 905 vehicles a day, roughly 24% of them trucks, projected to reach 1,222 by 2038. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN14
CrossesMerriman Creek
LocationJCT US20/N14 6.2N
RouteState Highway 14
Coordinates42.4368, -98.03
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.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic905 (2018)
Projected traffic1,222 by 2038
Trucks24%
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 Merriman Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is N14 over Merriman 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 October 2024.

How much traffic does N14 over Merriman Creek carry?

About 905 vehicles per day (2018 count), of which roughly 24% are trucks.

How long is N14 over Merriman Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns N14 over Merriman Creek?

It is owned by the State Highway Agency.