US Bridges

St. Mary Street over Unnamed Channel

Good

Hinds County, Mississippi · Sec 35 T 6N R 1E · Structure no. SA2500000000429

Built
2021
4 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
600
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

St. Mary Street over Unnamed Channel is a concrete culvert carrying St. Mary Street over Unnamed Channel in Hinds County, Mississippi. It was built in 2021, so it is 4 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.

It carries about 600 vehicles a day, projected to reach 900 by 2044. The structure is 26 ft (7.8 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSt. Mary Street
CrossesUnnamed Channel
LocationSec 35 T 6N R 1E
RouteCity Street 0
Coordinates32.31939, -90.16372
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.2 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span12 ft (3.6 m)
Deck width45 ft (13.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2024)
Projected traffic900 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 St. Mary Street over Unnamed Channel built?

It was built in 2021, making it 4 years old in 2025.

What condition is St. Mary Street over Unnamed Channel 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 August 2024.

How much traffic does St. Mary Street over Unnamed Channel carry?

About 600 vehicles per day (2024 count).

How long is St. Mary Street over Unnamed Channel?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.6 m) and a deck 45 ft wide.

Who owns St. Mary Street over Unnamed Channel?

It is owned by the City or Municipal Highway Agency.