US Bridges

29895 Boyer Ave over Ck

Poor

Union County, South Dakota · 12.5E & 0.9S Beresford · Structure no. 000000064145019

Built
1992
33 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
28 ft
2 main spans
Daily traffic
70
2022 count
Owner
County
County Highway Agency

About this bridge

29895 Boyer Ave over Ck is a steel continuous stringer/multi-beam or girder carrying 29895 Boyer Ave over Ck in Union County, South Dakota. It was built in 1992, so it is 33 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 70 vehicles a day, roughly 2% of them trucks, projected to reach 70 by 2032. The structure is 28 ft (8.4 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries29895 Boyer Ave
CrossesCk
Location12.5E & 0.9S Beresford
RouteCounty Highway 0
CountyUnion County
StateSouth Dakota
Coordinates43.05518, -96.51946
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating25.2 US tons
Inventory rating18.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadUnknown
Structure length28 ft (8.4 m)
Longest span13 ft (4.1 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic70 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 29895 Boyer Ave over Ck built?

It was built in 1992, making it 33 years old in 2025.

What condition is 29895 Boyer Ave over Ck in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does 29895 Boyer Ave over Ck carry?

About 70 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 29895 Boyer Ave over Ck?

The structure is 28 ft (8.4 m) long with a longest span of 13 ft (4.1 m) and a deck 25 ft wide.

Who owns 29895 Boyer Ave over Ck?

It is owned by the County Highway Agency.