US Bridges

S76D Swanton Spur over Walnut Grove Creek

Poor

Saline County, Nebraska · 2N Swanton · Structure no. SS76D00494

Built
1964
61 years old
Condition
Poor
inspected August 2024
Type
Slab
Concrete Continuous
Length
66 ft
3 main spans
Daily traffic
220
2018 count
Owner
State
State Highway Agency

About this bridge

S76D Swanton Spur over Walnut Grove Creek is a concrete continuous slab carrying S76D Swanton Spur over Walnut Grove Creek in Saline County, Nebraska. It was built in 1964, so it is 61 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 220 vehicles a day, roughly 11% of them trucks, projected to reach 319 by 2038. The structure is 66 ft (20.1 m) long and 34 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesS76D Swanton Spur
CrossesWalnut Grove Creek
Location2N Swanton
RouteState Highway 0S76D
CountySaline County
StateNebraska
Coordinates40.4085, -97.0845
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length66 ft (20.1 m)
Longest span26 ft (7.9 m)
Deck width34 ft (10.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2018)
Projected traffic319 by 2038
Trucks11%
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 S76D Swanton Spur over Walnut Grove Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is S76D Swanton Spur over Walnut Grove Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does S76D Swanton Spur over Walnut Grove Creek carry?

About 220 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is S76D Swanton Spur over Walnut Grove Creek?

The structure is 66 ft (20.1 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.

Who owns S76D Swanton Spur over Walnut Grove Creek?

It is owned by the State Highway Agency.