US Bridges

30940 Bluff Road over Ck

Good

Clay County, South Dakota · 4.6N & 0.2W Meckling · Structure no. 000000014044120

Built
2019
6 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
121
2022 count
Owner
County
County Highway Agency

About this bridge

30940 Bluff Road over Ck is a steel stringer/multi-beam or girder carrying 30940 Bluff Road over Ck in Clay County, South Dakota. It was built in 2019, so it is 6 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 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.

It carries about 121 vehicles a day, roughly 3% of them trucks, projected to reach 121 by 2032. The structure is 35 ft (10.7 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Carries30940 Bluff Road
CrossesCk
Location4.6N & 0.2W Meckling
RouteCounty Highway 0
Coordinates42.9091, -97.07467
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.1 US tons
Inventory rating37.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span33 ft (10.2 m)
Deck width33 ft (10.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic121 (2022)
Projected traffic121 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 30940 Bluff Road over Ck built?

It was built in 2019, making it 6 years old in 2025.

What condition is 30940 Bluff Road 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 August 2024.

How much traffic does 30940 Bluff Road over Ck carry?

About 121 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 30940 Bluff Road over Ck?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.2 m) and a deck 33 ft wide.

Who owns 30940 Bluff Road over Ck?

It is owned by the County Highway Agency.