US Bridges

SR 8 over Dougherly Bayou

Fair

Sunflower County, Mississippi · 1.3 MI W US 49W · Structure no. 310000806702780

Built
1940
85 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
7,900
2023 count
Owner
State
State Highway Agency

About this bridge

SR 8 over Dougherly Bayou is a concrete culvert carrying SR 8 over Dougherly Bayou in Sunflower County, Mississippi. It was built in 1940, so it is 85 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 7,900 vehicles a day, roughly 13% of them trucks, projected to reach 7,900 by 2043. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 34.2 mi (55 km).

Location

Open in Google Maps
CarriesSR 8
CrossesDougherly Bayou
Location1.3 MI W US 49W
RouteState Highway 8
CountySunflower County
StateMississippi
Coordinates33.73089, -90.56263
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 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 alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating100.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,900 (2023)
Projected traffic7,900 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 8 over Dougherly Bayou built?

It was built in 1940, making it 85 years old in 2025.

What condition is SR 8 over Dougherly 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 2024.

How much traffic does SR 8 over Dougherly Bayou carry?

About 7,900 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SR 8 over Dougherly Bayou?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m).

Who owns SR 8 over Dougherly Bayou?

It is owned by the State Highway Agency.