US Bridges

Zierdt RD over Swan Pond Creek

Good

Madison County, Alabama · 1 Mi. NE of Beadle Lane · Structure no. 017970

Built
2000
25 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
650
2000 count
Owner
County
County Highway Agency

About this bridge

Zierdt RD over Swan Pond Creek is a concrete culvert carrying Zierdt RD over Swan Pond Creek in Madison County, Alabama. It was built in 2000, so it is 25 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 650 vehicles a day, roughly 4% of them trucks, projected to reach 980 by 2042. The structure is 31 ft (9.4 m) long and 46 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesZierdt RD
CrossesSwan Pond Creek
Location1 Mi. NE of Beadle Lane
RouteCounty Highway 10
StateAlabama
Coordinates34.62361, -86.72801
Functional classRural Minor 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.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.2 US tons
Inventory rating51.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span12 ft (3.7 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2000)
Projected traffic980 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$460,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Zierdt RD over Swan Pond Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Zierdt RD over Swan Pond 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 February 2024.

How much traffic does Zierdt RD over Swan Pond Creek carry?

About 650 vehicles per day (2000 count), of which roughly 4% are trucks.

How long is Zierdt RD over Swan Pond Creek?

The structure is 31 ft (9.4 m) long with a longest span of 12 ft (3.7 m) and a deck 46 ft wide.

Who owns Zierdt RD over Swan Pond Creek?

It is owned by the County Highway Agency.