US Bridges

Gibson Swamp Road over Lanes Bayou

Good

Bolivar County, Mississippi · Sec 29 T24N R 7W B · Structure no. SA0600000000218

Built
1999
26 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
3 main spans
Daily traffic
60
2024 count
Owner
County
County Highway Agency

About this bridge

Gibson Swamp Road over Lanes Bayou is a prestressed concrete stringer/multi-beam or girder carrying Gibson Swamp Road over Lanes Bayou in Bolivar County, Mississippi. It was built in 1999, so it is 26 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2044. The structure is 140 ft (42.6 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesGibson Swamp Road
CrossesLanes Bayou
LocationSec 29 T24N R 7W B
RouteCounty Highway 1627
Coordinates33.89464, -90.94706
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length140 ft (42.6 m)
Longest span60 ft (18.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2024)
Projected traffic90 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Gibson Swamp Road over Lanes Bayou built?

It was built in 1999, making it 26 years old in 2025.

What condition is Gibson Swamp Road over Lanes 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 February 2024.

How much traffic does Gibson Swamp Road over Lanes Bayou carry?

About 60 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Gibson Swamp Road over Lanes Bayou?

The structure is 140 ft (42.6 m) long with a longest span of 60 ft (18.2 m) and a deck 33 ft wide.

Who owns Gibson Swamp Road over Lanes Bayou?

It is owned by the County Highway Agency.