US Bridges

I-275 SB over Auction Lane

Fair

Dearborn County, Indiana · 01.34 N US 50 · Structure no. 049690

Built
1974
51 years old, rebuilt 2019
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
16,654
2022 count
Owner
State
State Highway Agency

About this bridge

I-275 SB over Auction Lane is a steel continuous stringer/multi-beam or girder carrying I-275 SB over Auction Lane in Dearborn County, Indiana. It was built in 1974 and reconstructed in 2019, so it is 51 years old, older than the Indiana average of 46.6 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 16,654 vehicles a day, roughly 20% of them trucks, projected to reach 18,520 by 2038. The structure is 151 ft (45.9 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-275 SB
CrossesAuction Lane
Location01.34 N US 50
RouteInterstate 275
CountyDearborn County
StateIndiana
Coordinates39.14028, -84.82725
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length151 ft (45.9 m)
Longest span56 ft (17 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,654 (2022)
Projected traffic18,520 by 2038
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-275 SB over Auction Lane built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2019.

What condition is I-275 SB over Auction Lane 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 January 2023.

How much traffic does I-275 SB over Auction Lane carry?

About 16,654 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is I-275 SB over Auction Lane?

The structure is 151 ft (45.9 m) long with a longest span of 56 ft (17 m) and a deck 42 ft wide.

Who owns I-275 SB over Auction Lane?

It is owned by the State Highway Agency.