US Bridges

IRR US012 over Burlington Northern RR

Good

Corson County, South Dakota · 0.2 W JCT Sd 65 S · Structure no. 000000016328018

Built
2024
1 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
198 ft
3 main spans
Daily traffic
470
2024 count
Owner
State
State Highway Agency

About this bridge

IRR US012 over Burlington Northern RR is a prestressed concrete stringer/multi-beam or girder carrying IRR US012 over Burlington Northern RR in Corson County, South Dakota. It was built in 2024, so it is 1 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 470 vehicles a day, roughly 19% of them trucks, projected to reach 614 by 2044. The structure is 198 ft (60.3 m) long and 39 ft wide.

CarriesIRR US012
CrossesBurlington Northern RR
Location0.2 W JCT Sd 65 S
RouteU.S. Route 12
Coordinates45.92253, -101.265
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating63.9 US tons
Inventory rating51.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length198 ft (60.3 m)
Longest span70 ft (21.3 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2024)
Projected traffic614 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR US012 over Burlington Northern RR built?

It was built in 2024, making it 1 years old in 2025.

What condition is IRR US012 over Burlington Northern RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does IRR US012 over Burlington Northern RR carry?

About 470 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is IRR US012 over Burlington Northern RR?

The structure is 198 ft (60.3 m) long with a longest span of 70 ft (21.3 m) and a deck 39 ft wide.

Who owns IRR US012 over Burlington Northern RR?

It is owned by the State Highway Agency.