US Bridges

SR 28 over French Ditch

Fair

Warren County, Indiana · 02.25 W US 41 · Structure no. 007600

Built
1934
91 years old
Condition
Fair
inspected January 2024
Type
Arch - Deck
Concrete
Length
39 ft
1 main span
Daily traffic
3,777
2021 count
Owner
State
State Highway Agency

About this bridge

SR 28 over French Ditch is a concrete arch - deck carrying SR 28 over French Ditch in Warren County, Indiana. It was built in 1934, so it is 91 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 5 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 3,777 vehicles a day, roughly 7% of them trucks, projected to reach 5,707 by 2032. The structure is 39 ft (11.8 m) long and 40 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR 28
CrossesFrench Ditch
Location02.25 W US 41
RouteState Highway 28
CountyWarren County
StateIndiana
Coordinates40.2799, -87.30503
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating52.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length39 ft (11.8 m)
Longest span35 ft (10.6 m)
Deck width40 ft (12.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,777 (2021)
Projected traffic5,707 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 28 over French Ditch built?

It was built in 1934, making it 91 years old in 2025.

What condition is SR 28 over French 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 January 2024.

How much traffic does SR 28 over French Ditch carry?

About 3,777 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR 28 over French Ditch?

The structure is 39 ft (11.8 m) long with a longest span of 35 ft (10.6 m) and a deck 40 ft wide.

Who owns SR 28 over French Ditch?

It is owned by the State Highway Agency.