US Bridges

N66 over Oak Creek

Good

Butler County, Nebraska · 4E Dwight · Structure no. S066 05451

Built
2017
8 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
132 ft
1 main span
Daily traffic
805
2018 count
Owner
State
State Highway Agency

About this bridge

N66 over Oak Creek is a prestressed concrete stringer/multi-beam or girder carrying N66 over Oak Creek in Butler County, Nebraska. It was built in 2017, so it is 8 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 805 vehicles a day, roughly 9% of them trucks, projected to reach 1,248 by 2038. The structure is 132 ft (40.1 m) long and 38 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN66
CrossesOak Creek
Location4E Dwight
RouteState Highway 66
Coordinates41.0752, -96.9545
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length132 ft (40.1 m)
Longest span130 ft (39.5 m)
Deck width38 ft (11.5 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic805 (2018)
Projected traffic1,248 by 2038
Trucks9%
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 N66 over Oak Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is N66 over Oak 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 June 2024.

How much traffic does N66 over Oak Creek carry?

About 805 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is N66 over Oak Creek?

The structure is 132 ft (40.1 m) long with a longest span of 130 ft (39.5 m) and a deck 38 ft wide.

Who owns N66 over Oak Creek?

It is owned by the State Highway Agency.