US Bridges

Madden Road over Natural Slough

PoorClosed to traffic

Sunflower County, Mississippi · Sec 3 T20N R 4W · Structure no. SA6700000000084

Built
1966
59 years old
Condition
Poor
inspected December 2024
Type
Channel Beam
Concrete
Length
145 ft
7 main spans
Daily traffic
—
2024 count
Owner
County
County Highway Agency

About this bridge

Madden Road over Natural Slough is a concrete channel beam carrying Madden Road over Natural Slough in Sunflower County, Mississippi. It was built in 1966, so it is 59 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 0 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. Its operating status is: closed to all traffic.

No traffic count is recorded. The structure is 145 ft (44.2 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMadden Road
CrossesNatural Slough
LocationSec 3 T20N R 4W
RouteCounty Highway 273
Coordinates33.60181, -90.60156
Functional classRural Local

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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection0 FailedOut of service and beyond corrective action.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourUnknown foundation; not evaluated for scour
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy0: Immediate repair necessary to put back in service
Approach roadway alignment0: Immediate repair necessary to put back in service
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length145 ft (44.2 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic15 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$350,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Madden Road over Natural Slough built?

It was built in 1966, making it 59 years old in 2025.

What condition is Madden Road over Natural 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 December 2024.

How much traffic does Madden Road over Natural Slough carry?

No traffic count is recorded for this structure.

How long is Madden Road over Natural Slough?

The structure is 145 ft (44.2 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Madden Road over Natural Slough?

It is owned by the County Highway Agency.