US Bridges

SR 66 over Dredged Ditch

Good

Spencer County, Indiana · 01.07 E SR 161 · Structure no. 023480

Built
1960
65 years old, rebuilt 2020
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
80 ft
3 main spans
Daily traffic
7,408
2020 count
Owner
State
State Highway Agency

About this bridge

SR 66 over Dredged Ditch is a concrete stringer/multi-beam or girder carrying SR 66 over Dredged Ditch in Spencer County, Indiana. It was built in 1960 and reconstructed in 2020, so it is 65 years old, older 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 7,408 vehicles a day, roughly 7% of them trucks, projected to reach 9,040 by 2040. The structure is 80 ft (24.3 m) long and 44 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesSR 66
CrossesDredged Ditch
Location01.07 E SR 161
RouteState Highway 66
CountySpencer County
StateIndiana
Coordinates37.89577, -87.07824
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length80 ft (24.3 m)
Longest span24 ft (7.3 m)
Deck width44 ft (13.3 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,408 (2020)
Projected traffic9,040 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 66 over Dredged Ditch built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2020.

What condition is SR 66 over Dredged 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 March 2023.

How much traffic does SR 66 over Dredged Ditch carry?

About 7,408 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is SR 66 over Dredged Ditch?

The structure is 80 ft (24.3 m) long with a longest span of 24 ft (7.3 m) and a deck 44 ft wide.

Who owns SR 66 over Dredged Ditch?

It is owned by the State Highway Agency.