US Bridges

I 55 over SR 310

Good

Panola County, Mississippi · I 55 over SR 310 · Structure no. 11000550542576A

Built
1959
66 years old, rebuilt 2020
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
153 ft
3 main spans
Daily traffic
13,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over SR 310 is a concrete continuous box beam or girders - single or spread carrying I 55 over SR 310 in Panola County, Mississippi. It was built in 1959 and reconstructed in 2020, so it is 66 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 13,500 vehicles a day, roughly 23% of them trucks, projected to reach 16,500 by 2043. The structure is 153 ft (46.6 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
CrossesSR 310
LocationI 55 over SR 310
RouteInterstate 55
CountyPanola County
StateMississippi
Coordinates34.51038, -89.92249
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 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 rating46.5 US tons
Inventory rating27.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length153 ft (46.6 m)
Longest span63 ft (19.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,500 (2023)
Projected traffic16,500 by 2043
Trucks23%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 55 over SR 310 built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2020.

What condition is I 55 over SR 310 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 SR 310 carry?

About 13,500 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I 55 over SR 310?

The structure is 153 ft (46.6 m) long with a longest span of 63 ft (19.2 m) and a deck 30 ft wide.

Who owns I 55 over SR 310?

It is owned by the State Highway Agency.