US Bridges

Old Downing Mill R over Choccolacco Creek

Good

Calhoun County, Alabama · Old Downing Mill RD · Structure no. 019603

Built
2005
20 years old
Condition
Good
inspected March 2024
Type
Truss - Thru
Steel Continuous
Length
200 ft
1 main span
Daily traffic
241
2023 count
Owner
County
County Highway Agency

About this bridge

Old Downing Mill R over Choccolacco Creek is a steel continuous truss - thru carrying Old Downing Mill R over Choccolacco Creek in Calhoun County, Alabama. It was built in 2005, so it is 20 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 241 vehicles a day, roughly 10% of them trucks, projected to reach 365 by 2044. The structure is 200 ft (61 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesOld Downing Mill R
CrossesChoccolacco Creek
LocationOld Downing Mill RD
RouteCounty Highway 30
StateAlabama
Coordinates33.6444, -85.69582
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating41.4 US tons
Inventory rating24.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length200 ft (61 m)
Longest span120 ft (36.6 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic241 (2023)
Projected traffic365 by 2044
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$1.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Downing Mill R over Choccolacco Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Old Downing Mill R over Choccolacco 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 March 2024.

How much traffic does Old Downing Mill R over Choccolacco Creek carry?

About 241 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Old Downing Mill R over Choccolacco Creek?

The structure is 200 ft (61 m) long with a longest span of 120 ft (36.6 m) and a deck 31 ft wide.

Who owns Old Downing Mill R over Choccolacco Creek?

It is owned by the County Highway Agency.