US Bridges

SR 584 over I 55

Good

Pike County, Mississippi · SR 584 over I 55 · Structure no. 310058405702430

Built
1965
60 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
266 ft
2 main spans
Daily traffic
790
2023 count
Owner
State
State Highway Agency

About this bridge

SR 584 over I 55 is a concrete continuous box beam or girders - single or spread carrying SR 584 over I 55 in Pike 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 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 790 vehicles a day, roughly 11% of them trucks, projected to reach 790 by 2043. The structure is 266 ft (81.1 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 584
CrossesI 55
LocationSR 584 over I 55
RouteState Highway 584
Coordinates31.0112, -90.50392
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating68.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length266 ft (81.1 m)
Longest span77 ft (23.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2023)
Projected traffic790 by 2043
Trucks11%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 584 over I 55 built?

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

What condition is SR 584 over I 55 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 October 2024.

How much traffic does SR 584 over I 55 carry?

About 790 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 584 over I 55?

The structure is 266 ft (81.1 m) long with a longest span of 77 ft (23.5 m) and a deck 31 ft wide.

Who owns SR 584 over I 55?

It is owned by the State Highway Agency.