US Bridges

SR 58 over Singer Ditch

Fair

Knox County, Indiana · 00.26 W SR 67 · Structure no. 023750

Built
1932
93 years old, rebuilt 1969
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
100 ft
1 main span
Daily traffic
3,225
2004 count
Owner
State
State Highway Agency

About this bridge

SR 58 over Singer Ditch is a concrete culvert carrying SR 58 over Singer Ditch in Knox County, Indiana. It was built in 1932 and reconstructed in 1969, so it is 93 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 3,225 vehicles a day, roughly 10% of them trucks, projected to reach 4,468 by 2030. The structure is 100 ft (30.4 m) long and 43 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR 58
CrossesSinger Ditch
Location00.26 W SR 67
RouteState Highway 58
CountyKnox County
StateIndiana
Coordinates38.87401, -87.21349
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1 (+2 approach)
Design loadH 20
Structure length100 ft (30.4 m)
Longest span60 ft (18.2 m)
Deck width43 ft (13.1 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,225 (2004)
Projected traffic4,468 by 2030
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 58 over Singer Ditch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1969.

What condition is SR 58 over Singer 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 58 over Singer Ditch carry?

About 3,225 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is SR 58 over Singer Ditch?

The structure is 100 ft (30.4 m) long with a longest span of 60 ft (18.2 m) and a deck 43 ft wide.

Who owns SR 58 over Singer Ditch?

It is owned by the State Highway Agency.