US Bridges

SR 25 over Plummer Slough

Poor

Rankin County, Mississippi · 0.2 MI N SR 471 · Structure no. 310002506101270

Built
1981
44 years old
Condition
Poor
inspected October 2024
Type
Culvert
Concrete
Length
86 ft
4 main spans
Daily traffic
20,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR 25 over Plummer Slough is a concrete culvert carrying SR 25 over Plummer Slough in Rankin County, Mississippi. It was built in 1981, so it is 44 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 20,000 vehicles a day, roughly 7% of them trucks, projected to reach 20,000 by 2043. The structure is 86 ft (26.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 25
CrossesPlummer Slough
Location0.2 MI N SR 471
RouteState Highway 25
CountyRankin County
StateMississippi
Coordinates32.38024, -89.96299
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating52.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2023)
Projected traffic20,000 by 2043
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 25 over Plummer Slough built?

It was built in 1981, making it 44 years old in 2025.

What condition is SR 25 over Plummer Slough in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does SR 25 over Plummer Slough carry?

About 20,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 25 over Plummer Slough?

The structure is 86 ft (26.2 m) long with a longest span of 20 ft (6.1 m).

Who owns SR 25 over Plummer Slough?

It is owned by the State Highway Agency.