US Bridges

I 59 over Cnic RR

Fair

Forrest County, Mississippi · 0.2 MI N US 49 · Structure no. 11000590180671A

Built
1960
65 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
150 ft
5 main spans
Daily traffic
17,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 59 over Cnic RR is a concrete slab carrying I 59 over Cnic RR 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 17,500 vehicles a day, roughly 17% of them trucks, projected to reach 18,500 by 2043. The structure is 150 ft (45.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 59
CrossesCnic RR
Location0.2 MI N US 49
RouteInterstate 59
Coordinates31.36014, -89.34359
Functional classUrban 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,500 (2023)
Projected traffic18,500 by 2043
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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$300 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 59 over Cnic RR built?

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

What condition is I 59 over Cnic RR 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 Cnic RR carry?

About 17,500 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is I 59 over Cnic RR?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns I 59 over Cnic RR?

It is owned by the State Highway Agency.