US Bridges

355 Avenue over Smith Ck

FairPosted for load

Brule County, South Dakota · 9.7N & 5E Pukwana · Structure no. 000000008190013

Built
1959
66 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
186 ft
5 main spans
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

355 Avenue over Smith Ck is a concrete continuous slab carrying 355 Avenue over Smith Ck in Brule County, South Dakota. It was built in 1959, so it is 66 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 41 vehicles a day, roughly 2% of them trucks, projected to reach 41 by 2032. The structure is 186 ft (56.7 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries355 Avenue
CrossesSmith Ck
Location9.7N & 5E Pukwana
RouteCounty Highway 0
Coordinates43.91519, -99.08807
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to 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 rating32.8 US tons
Inventory rating19.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length186 ft (56.7 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2022)
Projected traffic41 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$35,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 355 Avenue over Smith Ck built?

It was built in 1959, making it 66 years old in 2025.

What condition is 355 Avenue over Smith 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 355 Avenue over Smith Ck carry?

About 41 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 355 Avenue over Smith Ck?

The structure is 186 ft (56.7 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns 355 Avenue over Smith Ck?

It is owned by the County Highway Agency.