US Bridges

I 55 over Tallahatchie Relief

Good

Panola County, Mississippi · 4.0 MI N SR 6 · Structure no. 11000550542473A

Built
1960
65 years old, rebuilt 2020
Condition
Good
inspected March 2024
Type
Tee Beam
Concrete
Length
160 ft
4 main spans
Daily traffic
12,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Tallahatchie Relief is a concrete tee beam carrying I 55 over Tallahatchie Relief in Panola County, Mississippi. It was built in 1960 and reconstructed in 2020, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,500 vehicles a day, roughly 26% of them trucks, projected to reach 15,000 by 2043. The structure is 160 ft (48.8 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 55
CrossesTallahatchie Relief
Location4.0 MI N SR 6
RouteInterstate 55
CountyPanola County
StateMississippi
Coordinates34.3672, -89.91191
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length160 ft (48.8 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2023)
Projected traffic15,000 by 2043
Trucks26%
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 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 55 over Tallahatchie Relief built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2020.

What condition is I 55 over Tallahatchie Relief in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does I 55 over Tallahatchie Relief carry?

About 12,500 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I 55 over Tallahatchie Relief?

The structure is 160 ft (48.8 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns I 55 over Tallahatchie Relief?

It is owned by the State Highway Agency.