US Bridges

US 49 over Bayou Bernard

Good

Harrison County, Mississippi · 0.5 MI N I 10 · Structure no. 210004902400530

Built
1993
32 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
262 ft
5 main spans
Daily traffic
43,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 49 over Bayou Bernard is a prestressed concrete continuous stringer/multi-beam or girder carrying US 49 over Bayou Bernard in Harrison County, Mississippi. It was built in 1993, so it is 32 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 43,000 vehicles a day, roughly 4% of them trucks, projected to reach 43,000 by 2043. The structure is 262 ft (79.9 m) long and 133 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS 49
CrossesBayou Bernard
Location0.5 MI N I 10
RouteU.S. Route 49
Coordinates30.43895, -89.09739
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating32.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length262 ft (79.9 m)
Longest span60 ft (18.3 m)
Deck width133 ft (40.5 m)
Roadway width108 ft (33 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,000 (2023)
Projected traffic43,000 by 2043
Trucks4%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$750 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 49 over Bayou Bernard built?

It was built in 1993, making it 32 years old in 2025.

What condition is US 49 over Bayou Bernard 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 2023.

How much traffic does US 49 over Bayou Bernard carry?

About 43,000 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 49 over Bayou Bernard?

The structure is 262 ft (79.9 m) long with a longest span of 60 ft (18.3 m) and a deck 133 ft wide.

Who owns US 49 over Bayou Bernard?

It is owned by the State Highway Agency.