US Bridges

ST Charles ST over Bayou Bernard Branch

Fair

Harrison County, Mississippi · Sec 4 T 7S R11W · Structure no. SA2400000000097

Built
1989
36 years old
Condition
Fair
inspected November 2024
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
430
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

ST Charles ST over Bayou Bernard Branch is a concrete channel beam carrying ST Charles ST over Bayou Bernard Branch in Harrison County, Mississippi. It was built in 1989, so it is 36 years old, younger 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 430 vehicles a day, roughly 8% of them trucks, projected to reach 645 by 2044. The structure is 31 ft (9.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST Charles ST
CrossesBayou Bernard Branch
LocationSec 4 T 7S R11W
RouteCounty Highway 800
CountyHarrison County
StateMississippi
Coordinates30.45846, -89.09709
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.6 US tons
Inventory rating35.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2024)
Projected traffic645 by 2044
Trucks8%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Charles ST over Bayou Bernard Branch built?

It was built in 1989, making it 36 years old in 2025.

What condition is ST Charles ST over Bayou Bernard Branch 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 November 2024.

How much traffic does ST Charles ST over Bayou Bernard Branch carry?

About 430 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is ST Charles ST over Bayou Bernard Branch?

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

Who owns ST Charles ST over Bayou Bernard Branch?

It is owned by the City or Municipal Highway Agency.