US Bridges

I 55 over Ditch

Good

Madison County, Mississippi · 2.5 MI N SR 463 · Structure no. 11000550451098B

Built
1960
65 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
63 ft
3 main spans
Daily traffic
31,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Ditch is a concrete culvert carrying I 55 over Ditch in Madison County, Mississippi. It was built in 1960, so it is 65 years old, older than the Mississippi average of 38.9 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 31,500 vehicles a day, roughly 10% of them trucks, projected to reach 34,500 by 2043. The structure is 63 ft (19.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 55
CrossesDitch
Location2.5 MI N SR 463
RouteInterstate 55
Coordinates32.50272, -90.1182
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating29.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length63 ft (19.2 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,500 (2023)
Projected traffic34,500 by 2043
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 55 over Ditch built?

It was built in 1960, making it 65 years old in 2025.

What condition is I 55 over 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 2024.

How much traffic does I 55 over Ditch carry?

About 31,500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is I 55 over Ditch?

The structure is 63 ft (19.2 m) long with a longest span of 20 ft (6.1 m).

Who owns I 55 over Ditch?

It is owned by the State Highway Agency.