US Bridges

SR 501 over I 20

Fair

Scott County, Mississippi · SR 501 over I 20 · Structure no. 310050106202440

Built
1966
59 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
290 ft
2 main spans
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

SR 501 over I 20 is a concrete continuous box beam or girders - single or spread carrying SR 501 over I 20 in Scott County, Mississippi. It was built in 1966, so it is 59 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 5 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 1,600 vehicles a day, roughly 19% of them trucks, projected to reach 1,700 by 2043. The structure is 290 ft (88.4 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 501
CrossesI 20
LocationSR 501 over I 20
RouteState Highway 501
CountyScott County
StateMississippi
Coordinates32.32871, -89.45955
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating64.3 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length290 ft (88.4 m)
Longest span83 ft (25.3 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,700 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

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$450 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 501 over I 20 built?

It was built in 1966, making it 59 years old in 2025.

What condition is SR 501 over I 20 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 SR 501 over I 20 carry?

About 1,600 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is SR 501 over I 20?

The structure is 290 ft (88.4 m) long with a longest span of 83 ft (25.3 m) and a deck 29 ft wide.

Who owns SR 501 over I 20?

It is owned by the State Highway Agency.