US Bridges

SR 12 over Ditch # 4

Good

Washington County, Mississippi · 1.2 M W Humphereys Cl · Structure no. 310001207602250

Built
2005
20 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
2,200
2023 count
Owner
State
State Highway Agency

About this bridge

SR 12 over Ditch # 4 is a concrete culvert carrying SR 12 over Ditch # 4 in Washington County, Mississippi. It was built in 2005, so it is 20 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 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 2,200 vehicles a day, roughly 25% of them trucks, projected to reach 2,200 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 44.7 mi (72 km).

CarriesSR 12
CrossesDitch # 4
Location1.2 M W Humphereys Cl
RouteState Highway 12
Coordinates33.18461, -90.71018
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.6 US tons
Inventory rating55.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2023)
Projected traffic2,200 by 2043
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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 12 over Ditch # 4 built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR 12 over Ditch # 4 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 2024.

How much traffic does SR 12 over Ditch # 4 carry?

About 2,200 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is SR 12 over Ditch # 4?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns SR 12 over Ditch # 4?

It is owned by the State Highway Agency.