US Bridges

Main Street Road over Williams Ditch

Good

Knox County, Indiana · 00.18 S of Henry Road · Structure no. 4200125

Built
1970
55 years old, rebuilt 1991
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
130
2015 count
Owner
County
County Highway Agency

About this bridge

Main Street Road over Williams Ditch is a prestressed concrete box beam or girders - multiple carrying Main Street Road over Williams Ditch in Knox County, Indiana. It was built in 1970 and reconstructed in 1991, so it is 55 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 130 vehicles a day, roughly 2% of them trucks, projected to reach 170 by 2035. The structure is 60 ft (18.2 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMain Street Road
CrossesWilliams Ditch
Location00.18 S of Henry Road
RouteCounty Highway 0
StateIndiana
Coordinates38.60281, -87.4842
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length60 ft (18.2 m)
Longest span56 ft (17 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2015)
Projected traffic170 by 2035
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Main Street Road over Williams Ditch built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1991.

What condition is Main Street Road over Williams 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 Main Street Road over Williams Ditch carry?

About 130 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Main Street Road over Williams Ditch?

The structure is 60 ft (18.2 m) long with a longest span of 56 ft (17 m) and a deck 23 ft wide.

Who owns Main Street Road over Williams Ditch?

It is owned by the County Highway Agency.