US Bridges

S21B Callaway Spur over Sand Creek

Good

Custer County, Nebraska · 0S Callaway · Structure no. SS21B00056

Built
1962
63 years old, rebuilt 1994
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
1 main span
Daily traffic
845
2018 count
Owner
State
State Highway Agency

About this bridge

S21B Callaway Spur over Sand Creek is a steel stringer/multi-beam or girder carrying S21B Callaway Spur over Sand Creek in Custer County, Nebraska. It was built in 1962 and reconstructed in 1994, so it is 63 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 845 vehicles a day, roughly 9% of them trucks, projected to reach 1,141 by 2038. The structure is 81 ft (24.7 m) long and 33 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesS21B Callaway Spur
CrossesSand Creek
Location0S Callaway
RouteState Highway 0S21B
Coordinates41.2856, -99.9256
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.2 US tons
Inventory rating26.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length81 ft (24.7 m)
Longest span80 ft (24.4 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic845 (2018)
Projected traffic1,141 by 2038
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 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 S21B Callaway Spur over Sand Creek built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1994.

What condition is S21B Callaway Spur over Sand 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 November 2024.

How much traffic does S21B Callaway Spur over Sand Creek carry?

About 845 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is S21B Callaway Spur over Sand Creek?

The structure is 81 ft (24.7 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.

Who owns S21B Callaway Spur over Sand Creek?

It is owned by the State Highway Agency.