US Bridges

SR 327 over Diehl Ditch

Good

DeKalb County, Indiana · 01.53 N SR 8 · Structure no. 031350

Built
1984
41 years old, rebuilt 2017
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
2,220
2020 count
Owner
State
State Highway Agency

About this bridge

SR 327 over Diehl Ditch is a concrete continuous slab carrying SR 327 over Diehl Ditch in DeKalb County, Indiana. It was built in 1984 and reconstructed in 2017, so it is 41 years old, younger 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 2,220 vehicles a day, roughly 4% of them trucks, projected to reach 5,836 by 2030. The structure is 90 ft (27.4 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR 327
CrossesDiehl Ditch
Location01.53 N SR 8
RouteState Highway 327
CountyDeKalb County
StateIndiana
Coordinates41.38846, -85.1367
Functional classRural Major 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 protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span35 ft (10.6 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,220 (2020)
Projected traffic5,836 by 2030
Trucks4%
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

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 327 over Diehl Ditch built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2017.

What condition is SR 327 over Diehl 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 April 2023.

How much traffic does SR 327 over Diehl Ditch carry?

About 2,220 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SR 327 over Diehl Ditch?

The structure is 90 ft (27.4 m) long with a longest span of 35 ft (10.6 m) and a deck 46 ft wide.

Who owns SR 327 over Diehl Ditch?

It is owned by the State Highway Agency.