US Bridges

S.Railroad Ave. over Mud Bayou

Good

Hancock County, Mississippi · Sec 9 T 9S R14W · Structure no. SA230000000A049

Built
2023
2 years old
Condition
Good
inspected April 2024
Type
Channel Beam
Concrete
Length
40 ft
1 main span
Daily traffic
450
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

S.Railroad Ave. over Mud Bayou is a concrete channel beam carrying S.Railroad Ave. over Mud Bayou in Hancock County, Mississippi. It was built in 2023, so it is 2 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 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 450 vehicles a day, roughly 8% of them trucks, projected to reach 495 by 2041. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesS.Railroad Ave.
CrossesMud Bayou
LocationSec 9 T 9S R14W
RouteCity Street 605
Coordinates30.26906, -89.40871
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2021)
Projected traffic495 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 S.Railroad Ave. over Mud Bayou built?

It was built in 2023, making it 2 years old in 2025.

What condition is S.Railroad Ave. over Mud 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 April 2024.

How much traffic does S.Railroad Ave. over Mud Bayou carry?

About 450 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is S.Railroad Ave. over Mud Bayou?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns S.Railroad Ave. over Mud Bayou?

It is owned by the City or Municipal Highway Agency.