US Bridges

Dowling Bayou Road over Dowling Bayou

Good

Sharkey County, Mississippi · Sec 29 T13N R 5W · Structure no. SA630000000A035

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Channel Beam
Concrete
Length
286 ft
10 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Dowling Bayou Road over Dowling Bayou is a concrete channel beam carrying Dowling Bayou Road over Dowling Bayou in Sharkey County, Mississippi. It was built in 2024, so it is 1 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: new structure not yet open to traffic.

It carries about 50 vehicles a day, roughly 8% of them trucks, projected to reach 70 by 2044. The structure is 286 ft (87.2 m) long and 32 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesDowling Bayou Road
CrossesDowling Bayou
LocationSec 29 T13N R 5W
RouteCounty Highway 70
Coordinates32.9437, -90.728
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans10
Design loadHL 93
Structure length286 ft (87.2 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic70 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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$2.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dowling Bayou Road over Dowling Bayou built?

It was built in 2024, making it 1 years old in 2025.

What condition is Dowling Bayou Road over Dowling 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 December 2024.

How much traffic does Dowling Bayou Road over Dowling Bayou carry?

About 50 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Dowling Bayou Road over Dowling Bayou?

The structure is 286 ft (87.2 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns Dowling Bayou Road over Dowling Bayou?

It is owned by the County Highway Agency.