US Bridges

SR 15 over Ditch

Good

Union County, Mississippi · 2.0 MI S US 78 · Structure no. 310001507329280

Built
1947
78 years old, rebuilt 1967
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
11,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR 15 over Ditch is a concrete culvert carrying SR 15 over Ditch in Union County, Mississippi. It was built in 1947 and reconstructed in 1967, so it is 78 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 11,000 vehicles a day, roughly 14% of them trucks, projected to reach 12,000 by 2043. The structure is 33 ft (10 m) long. If it were closed, the detour would be 29.2 mi (47 km).

CarriesSR 15
CrossesDitch
Location2.0 MI S US 78
RouteState Highway 15
Coordinates34.45425, -89.01392
Functional classRural Minor 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length33 ft (10 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2023)
Projected traffic12,000 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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 15 over Ditch built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1967.

What condition is SR 15 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 November 2023.

How much traffic does SR 15 over Ditch carry?

About 11,000 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 15 over Ditch?

The structure is 33 ft (10 m) long with a longest span of 16 ft (4.9 m).

Who owns SR 15 over Ditch?

It is owned by the State Highway Agency.