US Bridges

New Garden RD over Knollenberg Ditch

Fair

Wayne County, Indiana · 00.20 W of Mag Study RD · Structure no. 8900115

Built
1967
58 years old
Condition
Fair
inspected April 2024
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
206
2024 count
Owner
County
County Highway Agency

About this bridge

New Garden RD over Knollenberg Ditch is a steel culvert carrying New Garden RD over Knollenberg Ditch in Wayne County, Indiana. It was built in 1967, so it is 58 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 206 vehicles a day, roughly 5% of them trucks, projected to reach 278 by 2044. The structure is 23 ft (7 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesNew Garden RD
CrossesKnollenberg Ditch
Location00.20 W of Mag Study RD
RouteCounty Highway 0
CountyWayne County
StateIndiana
Coordinates39.94275, -84.93393
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.7 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic206 (2024)
Projected traffic278 by 2044
Trucks5%
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

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 New Garden RD over Knollenberg Ditch built?

It was built in 1967, making it 58 years old in 2025.

What condition is New Garden RD over Knollenberg 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 April 2024.

How much traffic does New Garden RD over Knollenberg Ditch carry?

About 206 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is New Garden RD over Knollenberg Ditch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns New Garden RD over Knollenberg Ditch?

It is owned by the County Highway Agency.