US Bridges

Ridge Road over Hart Ditch

Good

Lake County, Indiana · 00.40 W US 41 · Structure no. 4500117

Built
1996
29 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
110 ft
1 main span
Daily traffic
16,879
2019 count
Owner
County
County Highway Agency

About this bridge

Ridge Road over Hart Ditch is a steel stringer/multi-beam or girder carrying Ridge Road over Hart Ditch in Lake County, Indiana. It was built in 1996, so it is 29 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16,879 vehicles a day, roughly 4% of them trucks, projected to reach 20,802 by 2040. The structure is 110 ft (33.5 m) long and 66 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesRidge Road
CrossesHart Ditch
Location00.40 W US 41
RouteCity Street 0
CountyLake County
StateIndiana
Coordinates41.55732, -87.48092
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.4 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span108 ft (32.9 m)
Deck width66 ft (20.1 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,879 (2019)
Projected traffic20,802 by 2040
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ridge Road over Hart Ditch built?

It was built in 1996, making it 29 years old in 2025.

What condition is Ridge Road over Hart Ditch 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 August 2024.

How much traffic does Ridge Road over Hart Ditch carry?

About 16,879 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Ridge Road over Hart Ditch?

The structure is 110 ft (33.5 m) long with a longest span of 108 ft (32.9 m) and a deck 66 ft wide.

Who owns Ridge Road over Hart Ditch?

It is owned by the County Highway Agency.