US Bridges

Sunflwr Plantation over Bayou

Good

Sunflower County, Mississippi · Sec 31 T23N R 4W B · Structure no. SA6700000000150

Built
1979
46 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
220 ft
2 main spans
Daily traffic
650
2024 count
Owner
County
County Highway Agency

About this bridge

Sunflwr Plantation over Bayou is a concrete culvert carrying Sunflwr Plantation over Bayou in Sunflower County, Mississippi. It was built in 1979, so it is 46 years old, older 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 650 vehicles a day, roughly 8% of them trucks, projected to reach 975 by 2044. The structure is 220 ft (67.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSunflwr Plantation
CrossesBayou
LocationSec 31 T23N R 4W B
RouteCounty Highway 602
Coordinates33.81822, -90.64245
Functional classRural Major Collector

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating29.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span110 ft (33.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2024)
Projected traffic975 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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$450,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sunflwr Plantation over Bayou built?

It was built in 1979, making it 46 years old in 2025.

What condition is Sunflwr Plantation over Bayou 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 May 2024.

How much traffic does Sunflwr Plantation over Bayou carry?

About 650 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Sunflwr Plantation over Bayou?

The structure is 220 ft (67.1 m) long with a longest span of 110 ft (33.5 m).

Who owns Sunflwr Plantation over Bayou?

It is owned by the County Highway Agency.