US Bridges

Tower Drive over US016

Fair

Pennington County, South Dakota · 1.9 S JCT Sd 44 E · Structure no. 000000052410318

Built
1964
61 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
295 ft
5 main spans
Daily traffic
600
2023 count
Owner
State
State Highway Agency

About this bridge

Tower Drive over US016 is a steel continuous stringer/multi-beam or girder carrying Tower Drive over US016 in Pennington County, South Dakota. It was built in 1964, so it is 61 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 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 600 vehicles a day, roughly 2% of them trucks, projected to reach 600 by 2043. The structure is 295 ft (89.8 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTower Drive
CrossesUS016
Location1.9 S JCT Sd 44 E
RouteCity Street 0
CountyPennington County
StateSouth Dakota
Coordinates44.05591, -103.23193
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48 US tons
Inventory rating28.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length295 ft (89.8 m)
Longest span69 ft (21.1 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic600 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$180,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Tower Drive over US016 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Tower Drive over US016 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 September 2024.

How much traffic does Tower Drive over US016 carry?

About 600 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Tower Drive over US016?

The structure is 295 ft (89.8 m) long with a longest span of 69 ft (21.1 m) and a deck 26 ft wide.

Who owns Tower Drive over US016?

It is owned by the State Highway Agency.