US Bridges

Private DR/US16 F over Spring Ck

Fair

Pennington County, South Dakota · 0.5M S & 0.5M W Hill City · Structure no. 000000052239411

Built
1980
45 years old, rebuilt 2002
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
10
2023 count
Owner
State
State Highway Agency

About this bridge

Private DR/US16 F over Spring Ck is a steel stringer/multi-beam or girder carrying Private DR/US16 F over Spring Ck in Pennington County, South Dakota. It was built in 1980 and reconstructed in 2002, so it is 45 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 10 vehicles a day, roughly 3% of them trucks, projected to reach 15 by 2043. The structure is 25 ft (7.7 m) long and 15 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesPrivate DR/US16 F
CrossesSpring Ck
Location0.5M S & 0.5M W Hill City
RouteU.S. Route 16
Coordinates43.92033, -103.58406
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.4 US tons
Inventory rating52.9 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length25 ft (7.7 m)
Longest span23 ft (7.1 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic15 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 Private DR/US16 F over Spring Ck built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2002.

What condition is Private DR/US16 F 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 December 2024.

How much traffic does Private DR/US16 F over Spring Ck carry?

About 10 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Private DR/US16 F over Spring Ck?

The structure is 25 ft (7.7 m) long with a longest span of 23 ft (7.1 m) and a deck 15 ft wide.

Who owns Private DR/US16 F over Spring Ck?

It is owned by the State Highway Agency.