US Bridges

361st Ave over Little Turtle Ck

Fair

Hand County, South Dakota · 5.3N & 1E Miller · Structure no. 000000030170197

Built
1962
63 years old
Condition
Fair
inspected July 2024
Type
Channel Beam
Concrete
Length
36 ft
1 main span
Daily traffic
43
2022 count
Owner
County
County Highway Agency

About this bridge

361st Ave over Little Turtle Ck is a concrete channel beam carrying 361st Ave over Little Turtle Ck in Hand County, South Dakota. It was built in 1962, so it is 63 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 43 vehicles a day, roughly 2% of them trucks, projected to reach 43 by 2032. The structure is 36 ft (11 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries361st Ave
CrossesLittle Turtle Ck
Location5.3N & 1E Miller
RouteCounty Highway 0
Coordinates44.61026, -98.96838
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43 (2022)
Projected traffic43 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 361st Ave over Little Turtle Ck built?

It was built in 1962, making it 63 years old in 2025.

What condition is 361st Ave over Little Turtle 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 July 2024.

How much traffic does 361st Ave over Little Turtle Ck carry?

About 43 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 361st Ave over Little Turtle Ck?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 29 ft wide.

Who owns 361st Ave over Little Turtle Ck?

It is owned by the County Highway Agency.