US Bridges

US 6 over Anderson Ditch

Good

Marshall County, Indiana · 01.62 E SR 23 · Structure no. 001710

Built
1932
93 years old, rebuilt 2000
Condition
Good
inspected November 2024
Type
Arch - Deck
Concrete
Length
44 ft
1 main span
Daily traffic
3,623
2021 count
Owner
State
State Highway Agency

About this bridge

US 6 over Anderson Ditch is a concrete arch - deck carrying US 6 over Anderson Ditch in Marshall County, Indiana. It was built in 1932 and reconstructed in 2000, 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 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 3,623 vehicles a day, roughly 18% of them trucks, projected to reach 6,798 by 2029. The structure is 44 ft (13.4 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 6
CrossesAnderson Ditch
Location01.62 E SR 23
RouteU.S. Route 6
StateIndiana
Coordinates41.45125, -86.4589
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
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
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 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 rating100 US tons
Inventory rating97.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length44 ft (13.4 m)
Longest span40 ft (12.1 m)
Deck width39 ft (11.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,623 (2021)
Projected traffic6,798 by 2029
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 US 6 over Anderson Ditch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2000.

What condition is US 6 over Anderson 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 November 2024.

How much traffic does US 6 over Anderson Ditch carry?

About 3,623 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is US 6 over Anderson Ditch?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.1 m) and a deck 39 ft wide.

Who owns US 6 over Anderson Ditch?

It is owned by the State Highway Agency.