US Bridges

SD063 over Black Pipe Ck

Fair

Mellette County, South Dakota · 1.8 E of Norris · Structure no. 000000048035280

Built
1954
71 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
87 ft
3 main spans
Daily traffic
282
2024 count
Owner
State
State Highway Agency

About this bridge

SD063 over Black Pipe Ck is a concrete continuous slab carrying SD063 over Black Pipe Ck in Mellette County, South Dakota. It was built in 1954, so it is 71 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 6 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 282 vehicles a day, roughly 7% of them trucks, projected to reach 412 by 2044. The structure is 87 ft (26.4 m) long and 28 ft wide. If it were closed, the detour would be 39.1 mi (63 km).

CarriesSD063
CrossesBlack Pipe Ck
Location1.8 E of Norris
RouteState Highway 63
Coordinates43.46165, -101.16866
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.8 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length87 ft (26.4 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282 (2024)
Projected traffic412 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SD063 over Black Pipe Ck built?

It was built in 1954, making it 71 years old in 2025.

What condition is SD063 over Black Pipe 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 October 2023.

How much traffic does SD063 over Black Pipe Ck carry?

About 282 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SD063 over Black Pipe Ck?

The structure is 87 ft (26.4 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns SD063 over Black Pipe Ck?

It is owned by the State Highway Agency.