US Bridges

465th Avenue over Blind Ck

PoorClosed to traffic

Lincoln County, South Dakota · 6W & 2.5N Beresford · Structure no. 000000042010265

Built
1935
90 years old
Condition
Poor
inspected August 2006
Type
Slab
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

465th Avenue over Blind Ck is a concrete continuous slab carrying 465th Avenue over Blind Ck in Lincoln County, South Dakota. It was built in 1935, so it is 90 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 poor condition with a lowest component rating of 2 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. Its operating status is: closed to all traffic.

It carries about 35 vehicles a day, roughly 2% of them trucks, projected to reach 35 by 2032. The structure is 31 ft (9.4 m) long and 19 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries465th Avenue
CrossesBlind Ck
Location6W & 2.5N Beresford
RouteCounty Highway 0
Coordinates43.12068, -96.90468
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2006
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span15 ft (4.5 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$189,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 465th Avenue over Blind Ck built?

It was built in 1935, making it 90 years old in 2025.

What condition is 465th Avenue over Blind 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 2006.

How much traffic does 465th Avenue over Blind Ck carry?

About 35 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 465th Avenue over Blind Ck?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.5 m) and a deck 19 ft wide.

Who owns 465th Avenue over Blind Ck?

It is owned by the County Highway Agency.