US Bridges

US 51 over Ditch

Good

Madison County, Mississippi · 1.3 MI N SR 16 East · Structure no. 210005104512060

Built
1929
96 years old, rebuilt 1986
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
6,800
2023 count
Owner
State
State Highway Agency

About this bridge

US 51 over Ditch is a concrete culvert carrying US 51 over Ditch in Madison County, Mississippi. It was built in 1929 and reconstructed in 1986, so it is 96 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,800 vehicles a day, roughly 6% of them trucks, projected to reach 6,800 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 16.2 mi (26 km).

CarriesUS 51
CrossesDitch
Location1.3 MI N SR 16 East
RouteU.S. Route 51
Coordinates32.59826, -90.03617
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.9 US tons
Inventory rating39.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,800 (2023)
Projected traffic6,800 by 2043
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 51 over Ditch built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1986.

What condition is US 51 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 US 51 over Ditch carry?

About 6,800 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 51 over Ditch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns US 51 over Ditch?

It is owned by the State Highway Agency.