US Bridges

I 59 over Mcphail Road

Fair

Forrest County, Mississippi · 1.7 MI S Jones Cl · Structure no. 11000590180710A

Built
1960
65 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
161 ft
1 main span
Daily traffic
16,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 59 over Mcphail Road is a concrete continuous box beam or girders - single or spread carrying I 59 over Mcphail Road in Forrest County, Mississippi. It was built in 1960, so it is 65 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 16,000 vehicles a day, roughly 14% of them trucks, projected to reach 17,500 by 2043. The structure is 161 ft (49.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 59
CrossesMcphail Road
Location1.7 MI S Jones Cl
RouteInterstate 59
Coordinates31.41098, -89.31856
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.3 US tons
Inventory rating32.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length161 ft (49.1 m)
Longest span67 ft (20.4 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2023)
Projected traffic17,500 by 2043
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$412 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 59 over Mcphail Road built?

It was built in 1960, making it 65 years old in 2025.

What condition is I 59 over Mcphail Road 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 December 2024.

How much traffic does I 59 over Mcphail Road carry?

About 16,000 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I 59 over Mcphail Road?

The structure is 161 ft (49.1 m) long with a longest span of 67 ft (20.4 m) and a deck 33 ft wide.

Who owns I 59 over Mcphail Road?

It is owned by the State Highway Agency.