US Bridges

I 55 over Big Creek

Fair

Lincoln County, Mississippi · 6.0 MI N Pike Cl · Structure no. 11000550430303A

Built
1965
60 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
1 main span
Daily traffic
10,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Big Creek is a prestressed concrete stringer/multi-beam or girder carrying I 55 over Big Creek in Lincoln County, Mississippi. It was built in 1965, so it is 60 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.

It carries about 10,500 vehicles a day, roughly 23% of them trucks, projected to reach 14,000 by 2043. The structure is 300 ft (91.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 55
CrossesBig Creek
Location6.0 MI N Pike Cl
RouteInterstate 55
CountyLincoln County
StateMississippi
Coordinates31.438, -90.47993
Functional classRural Principal Arterial - Interstate

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating72.6 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadHS 20 + Mod
Structure length300 ft (91.4 m)
Longest span60 ft (18.3 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic14,000 by 2043
Trucks23%
Lanes on structure20
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$439 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 55 over Big Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is I 55 over Big 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 2025.

How much traffic does I 55 over Big Creek carry?

About 10,500 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I 55 over Big Creek?

The structure is 300 ft (91.4 m) long with a longest span of 60 ft (18.3 m) and a deck 45 ft wide.

Who owns I 55 over Big Creek?

It is owned by the State Highway Agency.