US Bridges

US016 over Spring Ck

Fair

Pennington County, South Dakota · 0.2 E JCT US 385 · Structure no. 000000052273394

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
5,607
2024 count
Owner
State
State Highway Agency

About this bridge

US016 over Spring Ck is a concrete slab carrying US016 over Spring Ck in Pennington County, South Dakota. It was built in 1985, so it is 40 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 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 5,607 vehicles a day, roughly 14% of them trucks, projected to reach 8,842 by 2044. The structure is 39 ft (12 m) long and 47 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesUS016
CrossesSpring Ck
Location0.2 E JCT US 385
RouteU.S. Route 16
Coordinates43.94789, -103.51359
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.9 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length39 ft (12 m)
Longest span34 ft (10.5 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,607 (2024)
Projected traffic8,842 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemYes

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 US016 over Spring Ck built?

It was built in 1985, making it 40 years old in 2025.

What condition is US016 over Spring 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 2024.

How much traffic does US016 over Spring Ck carry?

About 5,607 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is US016 over Spring Ck?

The structure is 39 ft (12 m) long with a longest span of 34 ft (10.5 m) and a deck 47 ft wide.

Who owns US016 over Spring Ck?

It is owned by the State Highway Agency.