US Bridges

SR 587 over Unnamed Stream

Good

Marion County, Mississippi · 4.5 MI N SR 586 · Structure no. 310058704600500

Built
1983
42 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
45 ft
2 main spans
Daily traffic
960
2023 count
Owner
State
State Highway Agency

About this bridge

SR 587 over Unnamed Stream is a concrete culvert carrying SR 587 over Unnamed Stream in Marion County, Mississippi. It was built in 1983, so it is 42 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 960 vehicles a day, roughly 9% of them trucks, projected to reach 960 by 2043. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 19.9 mi (32 km).

CarriesSR 587
CrossesUnnamed Stream
Location4.5 MI N SR 586
RouteState Highway 587
Coordinates31.29186, -89.89623
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic960 (2023)
Projected traffic960 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 587 over Unnamed Stream built?

It was built in 1983, making it 42 years old in 2025.

What condition is SR 587 over Unnamed Stream 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 January 2024.

How much traffic does SR 587 over Unnamed Stream carry?

About 960 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SR 587 over Unnamed Stream?

The structure is 45 ft (13.7 m) long with a longest span of 16 ft (4.9 m).

Who owns SR 587 over Unnamed Stream?

It is owned by the State Highway Agency.