US Bridges

SR 912 Marina Acc over Cn RR Ihb RR

Fair

Lake County, Indiana · 00.83 W US 12 · Structure no. 076452

Built
1998
27 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
323 ft
2 main spans
Daily traffic
4,799
2021 count
Owner
State
State Highway Agency

About this bridge

SR 912 Marina Acc over Cn RR Ihb RR is a steel continuous stringer/multi-beam or girder carrying SR 912 Marina Acc over Cn RR Ihb RR in Lake County, Indiana. It was built in 1998, so it is 27 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 4,799 vehicles a day, roughly 9% of them trucks, projected to reach 2,967 by 2030. The structure is 323 ft (98.6 m) long and 79 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 912 Marina Acc
CrossesCn RR Ihb RR
Location00.83 W US 12
RouteState Highway 912
CountyLake County
StateIndiana
Coordinates41.64945, -87.43568
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating50.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length323 ft (98.6 m)
Longest span170 ft (51.9 m)
Deck width79 ft (24.2 m)
Roadway width76 ft (23.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,799 (2021)
Projected traffic2,967 by 2030
Trucks9%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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 SR 912 Marina Acc over Cn RR Ihb RR built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR 912 Marina Acc over Cn RR Ihb 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 September 2024.

How much traffic does SR 912 Marina Acc over Cn RR Ihb RR carry?

About 4,799 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is SR 912 Marina Acc over Cn RR Ihb RR?

The structure is 323 ft (98.6 m) long with a longest span of 170 ft (51.9 m) and a deck 79 ft wide.

Who owns SR 912 Marina Acc over Cn RR Ihb RR?

It is owned by the State Highway Agency.