US Bridges

US 33 over Johnson Ditch

Good

Allen County, Indiana · 05.33 N US 30 · Structure no. 010900

Built
1949
76 years old, rebuilt 2020
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
11,086
2019 count
Owner
State
State Highway Agency

About this bridge

US 33 over Johnson Ditch is a concrete continuous slab carrying US 33 over Johnson Ditch in Allen County, Indiana. It was built in 1949 and reconstructed in 2020, so it is 76 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 11,086 vehicles a day, roughly 14% of them trucks, projected to reach 12,036 by 2039. The structure is 71 ft (21.7 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 33
CrossesJohnson Ditch
Location05.33 N US 30
RouteU.S. Route 33
StateIndiana
Coordinates41.17519, -85.26904
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating44.6 US tons
Inventory rating34.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length71 ft (21.7 m)
Longest span28 ft (8.5 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,086 (2019)
Projected traffic12,036 by 2039
Trucks14%
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 33 over Johnson Ditch built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2020.

What condition is US 33 over Johnson 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 June 2024.

How much traffic does US 33 over Johnson Ditch carry?

About 11,086 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is US 33 over Johnson Ditch?

The structure is 71 ft (21.7 m) long with a longest span of 28 ft (8.5 m) and a deck 46 ft wide.

Who owns US 33 over Johnson Ditch?

It is owned by the State Highway Agency.