US Bridges

N66 over Stream

Good

Cass County, Nebraska · 7W Plattsmouth · Structure no. S066 11936

Built
1998
27 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
2,745
2018 count
Owner
State
State Highway Agency

About this bridge

N66 over Stream is a concrete culvert carrying N66 over Stream in Cass County, Nebraska. It was built in 1998, so it is 27 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 2,745 vehicles a day, roughly 8% of them trucks, projected to reach 3,843 by 2038. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 31.1 mi (50 km).

CarriesN66
CrossesStream
Location7W Plattsmouth
RouteState Highway 66
Coordinates41.002, -96.0161
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,745 (2018)
Projected traffic3,843 by 2038
Trucks8%
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 N66 over Stream built?

It was built in 1998, making it 27 years old in 2025.

What condition is N66 over Stream 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 March 2024.

How much traffic does N66 over Stream carry?

About 2,745 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is N66 over Stream?

The structure is 33 ft (10.1 m) long with a longest span of 13 ft (4 m).

Who owns N66 over Stream?

It is owned by the State Highway Agency.