US Bridges

Thach Road over Piney CR

Good

Limestone County, Alabama · SEC28 T1S R3W · Structure no. 006372

Built
1958
67 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
59 ft
4 main spans
Daily traffic
880
2010 count
Owner
County
County Highway Agency

About this bridge

Thach Road over Piney CR is a concrete culvert carrying Thach Road over Piney CR in Limestone County, Alabama. It was built in 1958, so it is 67 years old, older than the Alabama average of 51.1 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 880 vehicles a day, roughly 1% of them trucks, projected to reach 1,300 by 2030. The structure is 59 ft (18 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesThach Road
CrossesPiney CR
LocationSEC28 T1S R3W
RouteCounty Highway 100
StateAlabama
Coordinates34.91867, -86.83956
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length59 ft (18 m)
Longest span14 ft (4.3 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic880 (2010)
Projected traffic1,300 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost$479,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Thach Road over Piney CR built?

It was built in 1958, making it 67 years old in 2025.

What condition is Thach Road over Piney CR 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 May 2024.

How much traffic does Thach Road over Piney CR carry?

About 880 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Thach Road over Piney CR?

The structure is 59 ft (18 m) long with a longest span of 14 ft (4.3 m) and a deck 30 ft wide.

Who owns Thach Road over Piney CR?

It is owned by the County Highway Agency.