US Bridges

Michigan Avenue over SR 912 Eb/Wb Ramps Rrs

Fair

Lake County, Indiana · 01.34 W US 12 · Structure no. 033032

Built
1959
66 years old, rebuilt 2000
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
686 ft
7 main spans
Daily traffic
3,096
2021 count
Owner
State
State Highway Agency

About this bridge

Michigan Avenue over SR 912 Eb/Wb Ramps Rrs is a steel continuous stringer/multi-beam or girder carrying Michigan Avenue over SR 912 Eb/Wb Ramps Rrs in Lake County, Indiana. It was built in 1959 and reconstructed in 2000, so it is 66 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 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 3,096 vehicles a day, roughly 13% of them trucks, projected to reach 7,320 by 2030. The structure is 686 ft (209 m) long and 74 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMichigan Avenue
CrossesSR 912 Eb/Wb Ramps Rrs
Location01.34 W US 12
RouteCity Street 0
CountyLake County
StateIndiana
Coordinates41.65288, -87.44316
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 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 alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length686 ft (209 m)
Longest span104 ft (31.6 m)
Deck width74 ft (22.6 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,096 (2021)
Projected traffic7,320 by 2030
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Michigan Avenue over SR 912 Eb/Wb Ramps Rrs built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2000.

What condition is Michigan Avenue over SR 912 Eb/Wb Ramps Rrs 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 July 2024.

How much traffic does Michigan Avenue over SR 912 Eb/Wb Ramps Rrs carry?

About 3,096 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Michigan Avenue over SR 912 Eb/Wb Ramps Rrs?

The structure is 686 ft (209 m) long with a longest span of 104 ft (31.6 m) and a deck 74 ft wide.

Who owns Michigan Avenue over SR 912 Eb/Wb Ramps Rrs?

It is owned by the State Highway Agency.