US Bridges

Bolivar CO Line RD over Bch of Porter Bayou

FairPosted for load

Bolivar County, Mississippi · Sec 24 T20N R 6W · Structure no. SA0600000000011

Built
1995
30 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

Bolivar CO Line RD over Bch of Porter Bayou is a steel stringer/multi-beam or girder carrying Bolivar CO Line RD over Bch of Porter Bayou in Bolivar County, Mississippi. It was built in 1995, so it is 30 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 30 by 2042. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesBolivar CO Line RD
CrossesBch of Porter Bayou
LocationSec 24 T20N R 6W
RouteCounty Highway 506
Coordinates33.56401, -90.76345
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 15
Structure length46 ft (14 m)
Longest span46 ft (14 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic30 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bolivar CO Line RD over Bch of Porter Bayou built?

It was built in 1995, making it 30 years old in 2025.

What condition is Bolivar CO Line RD over Bch of Porter 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 January 2025.

How much traffic does Bolivar CO Line RD over Bch of Porter Bayou carry?

About 20 vehicles per day (2022 count).

How long is Bolivar CO Line RD over Bch of Porter Bayou?

The structure is 46 ft (14 m) long with a longest span of 46 ft (14 m) and a deck 24 ft wide.

Who owns Bolivar CO Line RD over Bch of Porter Bayou?

It is owned by the County Highway Agency.