US Bridges

265th Street over North Br Twelve Mile Ck

Fair

Davison County, South Dakota · 4.2 W JCT Sd 37 · Structure no. 000000018118210

Built
1977
48 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
356
2022 count
Owner
County
County Highway Agency

About this bridge

265th Street over North Br Twelve Mile Ck is a prestressed concrete tee beam carrying 265th Street over North Br Twelve Mile Ck in Davison County, South Dakota. It was built in 1977, so it is 48 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 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 356 vehicles a day, roughly 3% of them trucks, projected to reach 356 by 2032. The structure is 50 ft (15.2 m) long and 31 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Carries265th Street
CrossesNorth Br Twelve Mile Ck
Location4.2 W JCT Sd 37
RouteCounty Highway 0
Coordinates43.54211, -98.08765
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
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 statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic356 (2022)
Projected traffic356 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 265th Street over North Br Twelve Mile Ck built?

It was built in 1977, making it 48 years old in 2025.

What condition is 265th Street 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 August 2024.

How much traffic does 265th Street over North Br Twelve Mile Ck carry?

About 356 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 265th Street over North Br Twelve Mile Ck?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns 265th Street over North Br Twelve Mile Ck?

It is owned by the County Highway Agency.