US Bridges

Greenbrier Parkway over Unnamed Creek

Good

Limestone County, Alabama · _0.5 Mile West of HWY 20 · Structure no. 021539

Built
2019
6 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
6,000
2025 count
Owner
City
City or Municipal Highway Agency

About this bridge

Greenbrier Parkway over Unnamed Creek is a concrete continuous culvert carrying Greenbrier Parkway over Unnamed Creek in Limestone County, Alabama. It was built in 2019, so it is 6 years old, younger 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 6,000 vehicles a day, projected to reach 27,500 by 2045. The structure is 25 ft (7.6 m) long and 104 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesGreenbrier Parkway
CrossesUnnamed Creek
Location_0.5 Mile West of HWY 20
RouteCity Street 393
CountyLimestone County
StateAlabama
Coordinates34.68292, -86.85918
Functional classUrban Local

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating93 US tons
Inventory rating55.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width104 ft (31.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2025)
Projected traffic27,500 by 2045
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Greenbrier Parkway over Unnamed Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is Greenbrier Parkway over Unnamed Creek 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 January 2025.

How much traffic does Greenbrier Parkway over Unnamed Creek carry?

About 6,000 vehicles per day (2025 count).

How long is Greenbrier Parkway over Unnamed Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 104 ft wide.

Who owns Greenbrier Parkway over Unnamed Creek?

It is owned by the City or Municipal Highway Agency.