US Bridges

368 Ave over Ck

Fair

Hand County, South Dakota · 1.7 S Rockham · Structure no. 000000030240017

Built
1936
89 years old, rebuilt 1963
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
2 main spans
Daily traffic
116
2022 count
Owner
County
County Highway Agency

About this bridge

368 Ave over Ck is a steel stringer/multi-beam or girder carrying 368 Ave over Ck in Hand County, South Dakota. It was built in 1936 and reconstructed in 1963, so it is 89 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 116 vehicles a day, roughly 3% of them trucks, projected to reach 116 by 2032. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries368 Ave
CrossesCk
Location1.7 S Rockham
RouteCounty Highway 0
CountyHand County
StateSouth Dakota
Coordinates44.87118, -98.82534
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic116 (2022)
Projected traffic116 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$25,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 368 Ave over Ck built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1963.

What condition is 368 Ave over Ck in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does 368 Ave over Ck carry?

About 116 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 368 Ave over Ck?

The structure is 41 ft (12.5 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns 368 Ave over Ck?

It is owned by the County Highway Agency.