US Bridges

I 59 over Relief

Fair

Clarke County, Mississippi · 2.9 MI N SR 18 · Structure no. 11000590121283B

Built
1965
60 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete
Length
220 ft
11 main spans
Daily traffic
6,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 59 over Relief is a concrete slab carrying I 59 over Relief in Clarke 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 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 6,500 vehicles a day, roughly 39% of them trucks, projected to reach 7,000 by 2043. The structure is 220 ft (67.1 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 59
CrossesRelief
Location2.9 MI N SR 18
RouteInterstate 59
CountyClarke County
StateMississippi
Coordinates32.09831, -88.8915
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating80.8 US tons
Inventory rating48.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20 + Mod
Structure length220 ft (67.1 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2023)
Projected traffic7,000 by 2043
Trucks39%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 59 over Relief built?

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

What condition is I 59 over Relief 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 2023.

How much traffic does I 59 over Relief carry?

About 6,500 vehicles per day (2023 count), of which roughly 39% are trucks.

How long is I 59 over Relief?

The structure is 220 ft (67.1 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns I 59 over Relief?

It is owned by the State Highway Agency.