US Bridges

US016 over Newton Fork Ck

Fair

Pennington County, South Dakota · 0.3N & 0.4E Hill City · Structure no. 000000052245405

Built
1995
30 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
6,868
2024 count
Owner
State
State Highway Agency

About this bridge

US016 over Newton Fork Ck is a concrete continuous culvert carrying US016 over Newton Fork Ck in Pennington County, South Dakota. It was built in 1995, so it is 30 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 6,868 vehicles a day, roughly 4% of them trucks, projected to reach 10,831 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 14.3 mi (23 km).

CarriesUS016
CrossesNewton Fork Ck
Location0.3N & 0.4E Hill City
RouteU.S. Route 16
Coordinates43.93503, -103.56788
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating56.3 US tons
Inventory rating33.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,868 (2024)
Projected traffic10,831 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Newton Fork Ck built?

It was built in 1995, making it 30 years old in 2025.

What condition is US016 over Newton Fork 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 2023.

How much traffic does US016 over Newton Fork Ck carry?

About 6,868 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is US016 over Newton Fork Ck?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3.2 m).

Who owns US016 over Newton Fork Ck?

It is owned by the State Highway Agency.