US Bridges

264th Sreet over North Br Twelve Mile Ck

Fair

Davison County, South Dakota · 10 S & 7.6W Mitchell · Structure no. 000000018074200

Built
1945
80 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

264th Sreet over North Br Twelve Mile Ck is a concrete culvert carrying 264th Sreet over North Br Twelve Mile Ck in Davison County, South Dakota. It was built in 1945, so it is 80 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.

It carries about 15 vehicles a day, roughly 2% of them trucks, projected to reach 15 by 2032. The structure is 23 ft (7 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries264th Sreet
CrossesNorth Br Twelve Mile Ck
Location10 S & 7.6W Mitchell
RouteCounty Highway 0
Coordinates43.5563, -98.17812
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 264th Sreet over North Br Twelve Mile Ck built?

It was built in 1945, making it 80 years old in 2025.

What condition is 264th Sreet over North Br Twelve Mile 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 264th Sreet over North Br Twelve Mile Ck carry?

About 15 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 264th Sreet over North Br Twelve Mile Ck?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns 264th Sreet over North Br Twelve Mile Ck?

It is owned by the County Highway Agency.