US Bridges

322 Avenue over South Medicine Ck

Fair

Hughes County, South Dakota · 1.0E & 1.5S Harrold · Structure no. 000000033420025

Built
1968
57 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
62 ft
2 main spans
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

322 Avenue over South Medicine Ck is a concrete channel beam carrying 322 Avenue over South Medicine Ck in Hughes County, South Dakota. It was built in 1968, so it is 57 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 6 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 33 vehicles a day, roughly 2% of them trucks, projected to reach 33 by 2032. The structure is 62 ft (18.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries322 Avenue
CrossesSouth Medicine Ck
Location1.0E & 1.5S Harrold
RouteCounty Highway 0
Coordinates44.51132, -99.72446
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 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 closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$15,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 322 Avenue over South Medicine Ck built?

It was built in 1968, making it 57 years old in 2025.

What condition is 322 Avenue over South Medicine 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 June 2024.

How much traffic does 322 Avenue over South Medicine Ck carry?

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

How long is 322 Avenue over South Medicine Ck?

The structure is 62 ft (18.9 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns 322 Avenue over South Medicine Ck?

It is owned by the County Highway Agency.