US Bridges

Avalanch Rd. over Ck

GoodPosted for load

Meade County, South Dakota · 0.5 W Sturgis · Structure no. 000000047015425

Built
1963
62 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
106 ft
5 main spans
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

Avalanch Rd. over Ck is a concrete continuous slab carrying Avalanch Rd. over Ck in Meade County, South Dakota. It was built in 1963, so it is 62 years old, older than the South Dakota average of 48.9 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. Its operating status is: posted for load restriction.

It carries about 33 vehicles a day, roughly 2% of them trucks, projected to reach 33 by 2032. The structure is 106 ft (32.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesAvalanch Rd.
CrossesCk
Location0.5 W Sturgis
RouteCounty Highway 0
Coordinates44.42168, -103.53959
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating37.9 US tons
Inventory rating22.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length106 ft (32.3 m)
Longest span18 ft (5.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$15,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Avalanch Rd. over Ck built?

It was built in 1963, making it 62 years old in 2025.

What condition is Avalanch Rd. over Ck 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 July 2024.

How much traffic does Avalanch Rd. over Ck carry?

About 33 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Avalanch Rd. over Ck?

The structure is 106 ft (32.3 m) long with a longest span of 18 ft (5.5 m) and a deck 24 ft wide.

Who owns Avalanch Rd. over Ck?

It is owned by the County Highway Agency.