US Bridges

Camp 11 RD over Black Bayou

Fair

Coahoma County, Mississippi · Sec 21 T25N R 3W B · Structure no. SA1400000000010

Built
1978
47 years old
Condition
Fair
inspected February 2023
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

Camp 11 RD over Black Bayou is a concrete channel beam carrying Camp 11 RD over Black Bayou in Coahoma County, Mississippi. It was built in 1978, so it is 47 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.

It carries about 40 vehicles a day, projected to reach 60 by 2043. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCamp 11 RD
CrossesBlack Bayou
LocationSec 21 T25N R 3W B
RouteCounty Highway 319
CountyCoahoma County
StateMississippi
Coordinates34.01928, -90.52194
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.3 US tons
Inventory rating59.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic60 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$156,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Camp 11 RD over Black Bayou built?

It was built in 1978, making it 47 years old in 2025.

What condition is Camp 11 RD over Black Bayou 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 February 2023.

How much traffic does Camp 11 RD over Black Bayou carry?

About 40 vehicles per day (2023 count).

How long is Camp 11 RD over Black Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Camp 11 RD over Black Bayou?

It is owned by the County Highway Agency.