US Bridges

SR 55 over Tully Ditch

Fair

Lake County, Indiana · 06.01 S SR 2 · Structure no. 019830

Built
1988
37 years old, rebuilt 2011
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
370
2007 count
Owner
State
State Highway Agency

About this bridge

SR 55 over Tully Ditch is a prestressed concrete stringer/multi-beam or girder carrying SR 55 over Tully Ditch in Lake County, Indiana. It was built in 1988 and reconstructed in 2011, so it is 37 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 370 vehicles a day, roughly 18% of them trucks, projected to reach 460 by 2029. The structure is 55 ft (16.8 m) long and 47 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 55
CrossesTully Ditch
Location06.01 S SR 2
RouteState Highway 55
StateIndiana
Coordinates41.20264, -87.34317
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating31.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span52 ft (15.8 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic370 (2007)
Projected traffic460 by 2029
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Tully Ditch built?

It was built in 1988, making it 37 years old in 2025. It was reconstructed in 2011.

What condition is SR 55 over Tully Ditch 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 2023.

How much traffic does SR 55 over Tully Ditch carry?

About 370 vehicles per day (2007 count), of which roughly 18% are trucks.

How long is SR 55 over Tully Ditch?

The structure is 55 ft (16.8 m) long with a longest span of 52 ft (15.8 m) and a deck 47 ft wide.

Who owns SR 55 over Tully Ditch?

It is owned by the State Highway Agency.