US Bridges

CR 418 over Topashaw Canal

Good

Calhoun County, Mississippi · Sec 16 T22N R10E · Structure no. SA0700000000106

Built
1986
39 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
260 ft
5 main spans
Daily traffic
230
2014 count
Owner
County
County Highway Agency

About this bridge

CR 418 over Topashaw Canal is a prestressed concrete stringer/multi-beam or girder carrying CR 418 over Topashaw Canal in Calhoun County, Mississippi. It was built in 1986, so it is 39 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 230 vehicles a day, roughly 8% of them trucks, projected to reach 345 by 2034. The structure is 260 ft (79.2 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCR 418
CrossesTopashaw Canal
LocationSec 16 T22N R10E
RouteCounty Highway 812
Coordinates33.77953, -89.24694
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span100 ft (30.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2014)
Projected traffic345 by 2034
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 418 over Topashaw Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is CR 418 over Topashaw Canal 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 March 2024.

How much traffic does CR 418 over Topashaw Canal carry?

About 230 vehicles per day (2014 count), of which roughly 8% are trucks.

How long is CR 418 over Topashaw Canal?

The structure is 260 ft (79.2 m) long with a longest span of 100 ft (30.5 m) and a deck 31 ft wide.

Who owns CR 418 over Topashaw Canal?

It is owned by the County Highway Agency.