US Bridges

Car-Thstown Road over Shiola Creek

Fair

Leake County, Mississippi · Sec 29 T11N R 7E B · Structure no. SA4000000000057

Built
1956
69 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
980
2023 count
Owner
County
County Highway Agency

About this bridge

Car-Thstown Road over Shiola Creek is a concrete culvert carrying Car-Thstown Road over Shiola Creek in Leake County, Mississippi. It was built in 1956, so it is 69 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 980 vehicles a day, roughly 8% of them trucks, projected to reach 1,470 by 2030. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCar-Thstown Road
CrossesShiola Creek
LocationSec 29 T11N R 7E B
RouteCounty Highway 521
CountyLeake County
StateMississippi
Coordinates32.77897, -89.60973
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length26 ft (7.8 m)
Longest span12 ft (3.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic980 (2023)
Projected traffic1,470 by 2030
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$450,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Car-Thstown Road over Shiola Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Car-Thstown Road over Shiola Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Car-Thstown Road over Shiola Creek carry?

About 980 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Car-Thstown Road over Shiola Creek?

The structure is 26 ft (7.8 m) long with a longest span of 12 ft (3.8 m).

Who owns Car-Thstown Road over Shiola Creek?

It is owned by the County Highway Agency.