US Bridges

N4 over Turkey Creek

Good

Harlan County, Nebraska · 3W Ragan · Structure no. S004 01525

Built
1981
44 years old
Condition
Good
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
78 ft
3 main spans
Daily traffic
385
2018 count
Owner
State
State Highway Agency

About this bridge

N4 over Turkey Creek is a prestressed concrete tee beam carrying N4 over Turkey Creek in Harlan County, Nebraska. It was built in 1981, so it is 44 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 385 vehicles a day, roughly 13% of them trucks, projected to reach 558 by 2038. The structure is 78 ft (23.8 m) long and 31 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

Location

Open in Google Maps
CarriesN4
CrossesTurkey Creek
Location3W Ragan
RouteState Highway 4
CountyHarlan County
StateNebraska
Coordinates40.3073, -99.3447
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating54 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length78 ft (23.8 m)
Longest span26 ft (7.9 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic385 (2018)
Projected traffic558 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 N4 over Turkey Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is N4 over Turkey 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 April 2023.

How much traffic does N4 over Turkey Creek carry?

About 385 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is N4 over Turkey Creek?

The structure is 78 ft (23.8 m) long with a longest span of 26 ft (7.9 m) and a deck 31 ft wide.

Who owns N4 over Turkey Creek?

It is owned by the State Highway Agency.