US Bridges

Black Bayou RD over Ditch No 3

Fair

Washington County, Mississippi · Sec 28 T18N R 7W · Structure no. SA7600000000236

Built
1966
59 years old
Condition
Fair
inspected January 2024
Type
Channel Beam
Concrete
Length
38 ft
2 main spans
Daily traffic
100
2013 count
Owner
County
County Highway Agency

About this bridge

Black Bayou RD over Ditch No 3 is a concrete channel beam carrying Black Bayou RD over Ditch No 3 in Washington County, Mississippi. It was built in 1966, so it is 59 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: open, temporary structure in place while original is closed.

It carries about 100 vehicles a day, projected to reach 150 by 2033. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesBlack Bayou RD
CrossesDitch No 3
LocationSec 28 T18N R 7W
RouteCounty Highway 853
CountyWashington County
StateMississippi
Coordinates33.37894, -90.92081
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, temporary structure in place while original is closed
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2013)
Projected traffic150 by 2033
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$199,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Black Bayou RD over Ditch No 3 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Black Bayou RD over Ditch No 3 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does Black Bayou RD over Ditch No 3 carry?

About 100 vehicles per day (2013 count).

How long is Black Bayou RD over Ditch No 3?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Black Bayou RD over Ditch No 3?

It is owned by the County Highway Agency.