US Bridges

S66A Douglas Spur over Little Nemaha River Trib

Good

Otoe County, Nebraska · 0N Palmyra · Structure no. SS66A00006

Built
1951
74 years old, rebuilt 1997
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,285
2018 count
Owner
State
State Highway Agency

About this bridge

S66A Douglas Spur over Little Nemaha River Trib is a concrete culvert carrying S66A Douglas Spur over Little Nemaha River Trib in Otoe County, Nebraska. It was built in 1951 and reconstructed in 1997, so it is 74 years old, older 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 1,285 vehicles a day, roughly 5% of them trucks, projected to reach 1,735 by 2038. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 37.3 mi (60 km).

CarriesS66A Douglas Spur
CrossesLittle Nemaha River Trib
Location0N Palmyra
RouteState Highway 0S66A
Coordinates40.7106, -96.3874
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
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 loadHS 20
Structure length22 ft (6.7 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 traffic1,285 (2018)
Projected traffic1,735 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 S66A Douglas Spur over Little Nemaha River Trib built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1997.

What condition is S66A Douglas Spur over Little Nemaha River Trib 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 February 2025.

How much traffic does S66A Douglas Spur over Little Nemaha River Trib carry?

About 1,285 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is S66A Douglas Spur over Little Nemaha River Trib?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns S66A Douglas Spur over Little Nemaha River Trib?

It is owned by the State Highway Agency.