US Bridges

SR 43 over Bayou Lacroix

Good

Hancock County, Mississippi · 2.3 MI S I 10 · Structure no. 310004302300330

Built
1961
64 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
574 ft
11 main spans
Daily traffic
17,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR 43 over Bayou Lacroix is a prestressed concrete stringer/multi-beam or girder carrying SR 43 over Bayou Lacroix in Hancock County, Mississippi. It was built in 1961, so it is 64 years old, older 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 17,000 vehicles a day, roughly 7% of them trucks, projected to reach 17,000 by 2043. The structure is 574 ft (175 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 43
CrossesBayou Lacroix
Location2.3 MI S I 10
RouteState Highway 43
CountyHancock County
StateMississippi
Coordinates30.3294, -89.42442
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 15
Structure length574 ft (175 m)
Longest span52 ft (15.8 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2023)
Projected traffic17,000 by 2043
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1,000 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 43 over Bayou Lacroix built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR 43 over Bayou Lacroix 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 February 2023.

How much traffic does SR 43 over Bayou Lacroix carry?

About 17,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 43 over Bayou Lacroix?

The structure is 574 ft (175 m) long with a longest span of 52 ft (15.8 m) and a deck 31 ft wide.

Who owns SR 43 over Bayou Lacroix?

It is owned by the State Highway Agency.