US Bridges

Windmill Rd. CR20 over Polecat Creek

Fair

Perry County, Alabama · 1.75M East Co. Line · Structure no. 011590

Built
1976
49 years old
Condition
Fair
inspected November 2024
Type
Channel Beam
Concrete
Length
68 ft
2 main spans
Daily traffic
130
1993 count
Owner
County
County Highway Agency

About this bridge

Windmill Rd. CR20 over Polecat Creek is a concrete channel beam carrying Windmill Rd. CR20 over Polecat Creek in Perry County, Alabama. It was built in 1976, so it is 49 years old, younger than the Alabama average of 51.1 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 130 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2033. The structure is 68 ft (20.7 m) long and 30 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesWindmill Rd. CR20
CrossesPolecat Creek
Location1.75M East Co. Line
RouteCounty Highway 20
StateAlabama
Coordinates32.583, -87.49311
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating28.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 15
Structure length68 ft (20.7 m)
Longest span34 ft (10.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (1993)
Projected traffic160 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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$620,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Windmill Rd. CR20 over Polecat Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Windmill Rd. CR20 over Polecat 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 November 2024.

How much traffic does Windmill Rd. CR20 over Polecat Creek carry?

About 130 vehicles per day (1993 count), of which roughly 5% are trucks.

How long is Windmill Rd. CR20 over Polecat Creek?

The structure is 68 ft (20.7 m) long with a longest span of 34 ft (10.4 m) and a deck 30 ft wide.

Who owns Windmill Rd. CR20 over Polecat Creek?

It is owned by the County Highway Agency.