US Bridges

SD034 over Four Mile Ck

Good

Meade County, South Dakota · 19.5 NE JCT Sd 79 N · Structure no. 000000047230373

Built
2015
10 years old
Condition
Good
inspected April 2021
Type
Culvert
Concrete
Length
54 ft
4 main spans
Daily traffic
833
2024 count
Owner
State
State Highway Agency

About this bridge

SD034 over Four Mile Ck is a concrete culvert carrying SD034 over Four Mile Ck in Meade County, South Dakota. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 833 vehicles a day, roughly 19% of them trucks, projected to reach 1,328 by 2044. The structure is 54 ft (16.6 m) long. If it were closed, the detour would be 46 mi (74 km).

CarriesSD034
CrossesFour Mile Ck
Location19.5 NE JCT Sd 79 N
RouteState Highway 34
Coordinates44.49911, -103.10421
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating63.9 US tons
Inventory rating49.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHL 93
Structure length54 ft (16.6 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic833 (2024)
Projected traffic1,328 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SD034 over Four Mile Ck built?

It was built in 2015, making it 10 years old in 2025.

What condition is SD034 over Four Mile 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 April 2021.

How much traffic does SD034 over Four Mile Ck carry?

About 833 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is SD034 over Four Mile Ck?

The structure is 54 ft (16.6 m) long with a longest span of 13 ft (4 m).

Who owns SD034 over Four Mile Ck?

It is owned by the State Highway Agency.