US Bridges

Commercial Route over US014

Fair

Beadle County, South Dakota · 1.4 E JCT Sd 37 · Structure no. 000000003254180

Built
1960
65 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
254 ft
4 main spans
Daily traffic
600
2023 count
Owner
State
State Highway Agency

About this bridge

Commercial Route over US014 is a concrete continuous slab carrying Commercial Route over US014 in Beadle County, South Dakota. It was built in 1960, so it is 65 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 12% of them trucks, projected to reach 600 by 2043. The structure is 254 ft (77.4 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesCommercial Route
CrossesUS014
Location1.4 E JCT Sd 37
RouteCity Street 0
CountyBeadle County
StateSouth Dakota
Coordinates44.37096, -98.18588
Functional classUrban Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.2 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length254 ft (77.4 m)
Longest span65 ft (19.8 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic600 by 2043
Trucks12%
Lanes on structure2
Traffic directionOne-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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Commercial Route over US014 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Commercial Route over US014 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 May 2024.

How much traffic does Commercial Route over US014 carry?

About 600 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Commercial Route over US014?

The structure is 254 ft (77.4 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.

Who owns Commercial Route over US014?

It is owned by the State Highway Agency.