US Bridges

30370 458 Ave over Ck

Fair

Clay County, South Dakota · 6.7S & 6E Irene · Structure no. 000000014060067

Built
2002
23 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

30370 458 Ave over Ck is a prestressed concrete tee beam carrying 30370 458 Ave over Ck in Clay County, South Dakota. It was built in 2002, so it is 23 years old, younger 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 20 vehicles a day, roughly 3% of them trucks, projected to reach 31 by 2032. The structure is 47 ft (14.3 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries30370 458 Ave
CrossesCk
Location6.7S & 6E Irene
RouteCounty Highway 0
Coordinates42.98794, -97.04214
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length47 ft (14.3 m)
Longest span43 ft (13.1 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2022)
Projected traffic31 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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
NavigationNo navigation control on waterway

Frequently asked questions

When was 30370 458 Ave over Ck built?

It was built in 2002, making it 23 years old in 2025.

What condition is 30370 458 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 2024.

How much traffic does 30370 458 Ave over Ck carry?

About 20 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 30370 458 Ave over Ck?

The structure is 47 ft (14.3 m) long with a longest span of 43 ft (13.1 m) and a deck 31 ft wide.

Who owns 30370 458 Ave over Ck?

It is owned by the County Highway Agency.