US Bridges

SR 9 over Yalobusha Canal

PoorPosted for load

Calhoun County, Mississippi · 2.8 MI E SR 8 West · Structure no. 310000900704090

Built
1952
73 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
560 ft
1 main span
Daily traffic
3,400
2023 count
Owner
State
State Highway Agency

About this bridge

SR 9 over Yalobusha Canal is a steel stringer/multi-beam or girder carrying SR 9 over Yalobusha Canal in Calhoun County, Mississippi. It was built in 1952, so it is 73 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. Its operating status is: posted for load restriction.

It carries about 3,400 vehicles a day, roughly 17% of them trucks, projected to reach 3,400 by 2043. The structure is 560 ft (170.7 m) long and 26 ft wide. If it were closed, the detour would be 70.2 mi (113 km).

CarriesSR 9
CrossesYalobusha Canal
Location2.8 MI E SR 8 West
RouteState Highway 9
Coordinates33.83754, -89.31644
Functional classRural Minor 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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.8 US tons
Inventory rating24.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+16 approach)
Design loadH 15
Structure length560 ft (170.7 m)
Longest span80 ft (24.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2023)
Projected traffic3,400 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed70.2 mi (113 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 9 over Yalobusha Canal built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR 9 over Yalobusha Canal 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 February 2024.

How much traffic does SR 9 over Yalobusha Canal carry?

About 3,400 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is SR 9 over Yalobusha Canal?

The structure is 560 ft (170.7 m) long with a longest span of 80 ft (24.4 m) and a deck 26 ft wide.

Who owns SR 9 over Yalobusha Canal?

It is owned by the State Highway Agency.