US Bridges

SR 59 over Conneley Ditch

Fair

Clay County, Indiana · 02.11 N SR 246 · Structure no. 021250

Built
1955
70 years old, rebuilt 2021
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
585 ft
6 main spans
Daily traffic
4,098
2021 count
Owner
State
State Highway Agency

About this bridge

SR 59 over Conneley Ditch is a steel continuous stringer/multi-beam or girder carrying SR 59 over Conneley Ditch in Clay County, Indiana. It was built in 1955 and reconstructed in 2021, so it is 70 years old, older 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 4,098 vehicles a day, roughly 7% of them trucks, projected to reach 4,236 by 2041. The structure is 585 ft (178.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR 59
CrossesConneley Ditch
Location02.11 N SR 246
RouteState Highway 59
CountyClay County
StateIndiana
Coordinates39.31035, -87.10987
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating42.5 US tons
Inventory rating32.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length585 ft (178.2 m)
Longest span104 ft (31.6 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,098 (2021)
Projected traffic4,236 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 59 over Conneley Ditch built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2021.

What condition is SR 59 over Conneley 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 October 2024.

How much traffic does SR 59 over Conneley Ditch carry?

About 4,098 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR 59 over Conneley Ditch?

The structure is 585 ft (178.2 m) long with a longest span of 104 ft (31.6 m) and a deck 32 ft wide.

Who owns SR 59 over Conneley Ditch?

It is owned by the State Highway Agency.