US Bridges

US 31 over Canary Ditch

Fair

Johnson County, Indiana · 01.30 N SR 44 · Structure no. 009400

Built
1946
79 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
25,834
2022 count
Owner
State
State Highway Agency

About this bridge

US 31 over Canary Ditch is a concrete culvert carrying US 31 over Canary Ditch in Johnson County, Indiana. It was built in 1946, so it is 79 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 25,834 vehicles a day, roughly 5% of them trucks, projected to reach 39,614 by 2031. The structure is 28 ft (8.5 m) long and 123 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesUS 31
CrossesCanary Ditch
Location01.30 N SR 44
RouteU.S. Route 31
CountyJohnson County
StateIndiana
Coordinates39.49877, -86.06703
Functional classUrban Other Principal 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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width123 ft (37.4 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,834 (2022)
Projected traffic39,614 by 2031
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 US 31 over Canary Ditch built?

It was built in 1946, making it 79 years old in 2025.

What condition is US 31 over Canary 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 October 2024.

How much traffic does US 31 over Canary Ditch carry?

About 25,834 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is US 31 over Canary Ditch?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 123 ft wide.

Who owns US 31 over Canary Ditch?

It is owned by the State Highway Agency.