US Bridges

S.Railroad Ave. over Grand Bayou

Good

Hancock County, Mississippi · Sec 9 T 9S R14W · Structure no. SA2300000000050

Built
2009
16 years old
Condition
Good
inspected October 2023
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
300
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

S.Railroad Ave. over Grand Bayou is a concrete channel beam carrying S.Railroad Ave. over Grand Bayou in Hancock County, Mississippi. It was built in 2009, so it is 16 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 300 vehicles a day, roughly 8% of them trucks, projected to reach 450 by 2041. The structure is 57 ft (17.4 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesS.Railroad Ave.
CrossesGrand Bayou
LocationSec 9 T 9S R14W
RouteCity Street 605
CountyHancock County
StateMississippi
Coordinates30.2725, -89.40278
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103 US tons
Inventory rating61.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2021)
Projected traffic450 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Grand Bayou built?

It was built in 2009, making it 16 years old in 2025.

What condition is S.Railroad Ave. over Grand 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 October 2023.

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

About 300 vehicles per day (2021 count), of which roughly 8% are trucks.

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

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns S.Railroad Ave. over Grand Bayou?

It is owned by the City or Municipal Highway Agency.