US Bridges

Bobo-New Africa RD over Harris Bayou

Fair

Coahoma County, Mississippi · Sec 7 T26N R 4W B · Structure no. SA1400000000031

Built
1973
52 years old
Condition
Fair
inspected February 2023
Type
Channel Beam
Concrete
Length
209 ft
11 main spans
Daily traffic
160
2023 count
Owner
County
County Highway Agency

About this bridge

Bobo-New Africa RD over Harris Bayou is a concrete channel beam carrying Bobo-New Africa RD over Harris Bayou in Coahoma County, Mississippi. It was built in 1973, so it is 52 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 6 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 160 vehicles a day, roughly 8% of them trucks, projected to reach 240 by 2043. The structure is 209 ft (63.7 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesBobo-New Africa RD
CrossesHarris Bayou
LocationSec 7 T26N R 4W B
RouteCounty Highway 16
CountyCoahoma County
StateMississippi
Coordinates34.13342, -90.64825
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating38.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans11
Design loadH 15
Structure length209 ft (63.7 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2023)
Projected traffic240 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$539,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bobo-New Africa RD over Harris Bayou built?

It was built in 1973, making it 52 years old in 2025.

What condition is Bobo-New Africa RD over Harris 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 Bobo-New Africa RD over Harris Bayou carry?

About 160 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Bobo-New Africa RD over Harris Bayou?

The structure is 209 ft (63.7 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Bobo-New Africa RD over Harris Bayou?

It is owned by the County Highway Agency.