US Bridges

SR 55 over Singleton Ditch

Good

Lake County, Indiana · 02.97 S SR 2 · Structure no. 019851

Built
2014
11 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
2,380
2014 count
Owner
State
State Highway Agency

About this bridge

SR 55 over Singleton Ditch is a prestressed concrete continuous box beam or girders - single or spread carrying SR 55 over Singleton Ditch in Lake County, Indiana. It was built in 2014, so it is 11 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 2,380 vehicles a day, roughly 2% of them trucks, projected to reach 2,980 by 2034. The structure is 101 ft (30.7 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 55
CrossesSingleton Ditch
Location02.97 S SR 2
RouteState Highway 55
CountyLake County
StateIndiana
Coordinates41.24675, -87.34368
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length101 ft (30.7 m)
Longest span44 ft (13.4 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,380 (2014)
Projected traffic2,980 by 2034
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 55 over Singleton Ditch built?

It was built in 2014, making it 11 years old in 2025.

What condition is SR 55 over Singleton 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 September 2023.

How much traffic does SR 55 over Singleton Ditch carry?

About 2,380 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is SR 55 over Singleton Ditch?

The structure is 101 ft (30.7 m) long with a longest span of 44 ft (13.4 m) and a deck 37 ft wide.

Who owns SR 55 over Singleton Ditch?

It is owned by the State Highway Agency.