US Bridges

Ramp B - WB over Conrail RR

Fair

Lake County, Indiana · 00.19 E US 12 · Structure no. 033025

Built
1983
42 years old, rebuilt 2010
Condition
Fair
inspected October 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
616 ft
4 main spans
Daily traffic
1,239
2004 count
Owner
Private
Private (other than railroad)

About this bridge

Ramp B - WB over Conrail RR is a prestressed concrete continuous segmental box girder carrying Ramp B - WB over Conrail RR in Lake County, Indiana. It was built in 1983 and reconstructed in 2010, so it is 42 years old, younger 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 1,239 vehicles a day, roughly 5% of them trucks, projected to reach 1,747 by 2030. The structure is 616 ft (187.8 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesRamp B - WB
CrossesConrail RR
Location00.19 E US 12
RouteState Highway 912
StateIndiana
Coordinates41.65386, -87.47517
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating44 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length616 ft (187.8 m)
Longest span197 ft (60 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,239 (2004)
Projected traffic1,747 by 2030
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 km)
TollToll bridge
National Highway SystemYes

Ownership and planned work

OwnerPrivate (other than railroad)
Maintained byPrivate (other than railroad)
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 Ramp B - WB over Conrail RR built?

It was built in 1983, making it 42 years old in 2025. It was reconstructed in 2010.

What condition is Ramp B - WB over Conrail RR 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 October 2024.

How much traffic does Ramp B - WB over Conrail RR carry?

About 1,239 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is Ramp B - WB over Conrail RR?

The structure is 616 ft (187.8 m) long with a longest span of 197 ft (60 m) and a deck 28 ft wide.

Who owns Ramp B - WB over Conrail RR?

It is owned by the Private (other than railroad).