US Bridges

369 Ave over Ck

PoorPosted for load

Hand County, South Dakota · 1 E & 6.2 S Rockham · Structure no. 000000030250062

Built
1935
90 years old
Condition
Poor
inspected August 2023
Type
Slab
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
10
2022 count
Owner
County
County Highway Agency

About this bridge

369 Ave over Ck is a concrete continuous slab carrying 369 Ave over Ck in Hand County, South Dakota. It was built in 1935, so it is 90 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 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 2% of them trucks, projected to reach 10 by 2032. The structure is 38 ft (11.6 m) long and 21 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries369 Ave
CrossesCk
Location1 E & 6.2 S Rockham
RouteCounty Highway 0
Coordinates44.80558, -98.80737
Functional classRural Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27 US tons
Inventory rating16.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span14 ft (4.3 m)
Deck width21 ft (6.5 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic10 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$373,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 369 Ave over Ck built?

It was built in 1935, making it 90 years old in 2025.

What condition is 369 Ave over Ck 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 2023.

How much traffic does 369 Ave over Ck carry?

About 10 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 369 Ave over Ck?

The structure is 38 ft (11.6 m) long with a longest span of 14 ft (4.3 m) and a deck 21 ft wide.

Who owns 369 Ave over Ck?

It is owned by the County Highway Agency.