US Bridges

SR 4 over Smith Ditch

Good

Tate County, Mississippi · 4.3 MI W US 51 · Structure no. 310000406903520

Built
2013
12 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
182 ft
1 main span
Daily traffic
4,900
2023 count
Owner
State
State Highway Agency

About this bridge

SR 4 over Smith Ditch is a prestressed concrete stringer/multi-beam or girder carrying SR 4 over Smith Ditch in Tate County, Mississippi. It was built in 2013, so it is 12 years old, younger 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 4,900 vehicles a day, roughly 8% of them trucks, projected to reach 4,900 by 2043. The structure is 182 ft (55.4 m) long and 43 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSR 4
CrossesSmith Ditch
Location4.3 MI W US 51
RouteState Highway 4
Coordinates34.61915, -90.0435
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length182 ft (55.4 m)
Longest span100 ft (30.5 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2023)
Projected traffic4,900 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 4 over Smith Ditch built?

It was built in 2013, making it 12 years old in 2025.

What condition is SR 4 over Smith 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 August 2023.

How much traffic does SR 4 over Smith Ditch carry?

About 4,900 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 4 over Smith Ditch?

The structure is 182 ft (55.4 m) long with a longest span of 100 ft (30.5 m) and a deck 43 ft wide.

Who owns SR 4 over Smith Ditch?

It is owned by the State Highway Agency.