US Bridges

I 20 over Potterchitto Creek

Fair

Newton County, Mississippi · 1.4 MI E SR 15 · Structure no. 11000200511107A

Built
1961
64 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
280 ft
7 main spans
Daily traffic
11,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 over Potterchitto Creek is a prestressed concrete stringer/multi-beam or girder carrying I 20 over Potterchitto Creek in Newton 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 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 11,500 vehicles a day, roughly 45% of them trucks, projected to reach 11,500 by 2043. The structure is 280 ft (85.3 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 20
CrossesPotterchitto Creek
Location1.4 MI E SR 15
RouteInterstate 20
CountyNewton County
StateMississippi
Coordinates32.34099, -89.1191
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20 + Mod
Structure length280 ft (85.3 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2023)
Projected traffic11,500 by 2043
Trucks45%
Lanes on structure2
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$407 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 20 over Potterchitto Creek built?

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

What condition is I 20 over Potterchitto 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 February 2023.

How much traffic does I 20 over Potterchitto Creek carry?

About 11,500 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I 20 over Potterchitto Creek?

The structure is 280 ft (85.3 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns I 20 over Potterchitto Creek?

It is owned by the State Highway Agency.