US Bridges

Old Port Gibson over Big Sand Creek

FairPosted for load

Claiborne County, Mississippi · Sec 4 T13N R 4E B · Structure no. SA1100000000075

Built
1981
44 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
160 ft
3 main spans
Daily traffic
280
2023 count
Owner
County
County Highway Agency

About this bridge

Old Port Gibson over Big Sand Creek is a prestressed concrete stringer/multi-beam or girder carrying Old Port Gibson over Big Sand Creek in Claiborne County, Mississippi. It was built in 1981, so it is 44 years old, older 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. Its operating status is: posted for load restriction.

It carries about 280 vehicles a day, roughly 8% of them trucks, projected to reach 420 by 2043. The structure is 160 ft (48.8 m) long and 29 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesOld Port Gibson
CrossesBig Sand Creek
LocationSec 4 T13N R 4E B
RouteCounty Highway 406
Coordinates32.11735, -90.77361
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 alignment6: Equal to present minimum criteria
Operating rating55.1 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length160 ft (48.8 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2023)
Projected traffic420 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 Old Port Gibson over Big Sand Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Old Port Gibson over Big Sand Creek 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 January 2024.

How much traffic does Old Port Gibson over Big Sand Creek carry?

About 280 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Old Port Gibson over Big Sand Creek?

The structure is 160 ft (48.8 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Old Port Gibson over Big Sand Creek?

It is owned by the County Highway Agency.