US Bridges

Unionacdmy-Ada Rd. over Drainage Ditch

Good

Montgomery County, Alabama · .5 MI S of US 31 · Structure no. 014201

Built
1987
38 years old
Condition
Good
inspected January 2024
Type
Channel Beam
Concrete
Length
72 ft
3 main spans
Daily traffic
118
1989 count
Owner
County
County Highway Agency

About this bridge

Unionacdmy-Ada Rd. over Drainage Ditch is a concrete channel beam carrying Unionacdmy-Ada Rd. over Drainage Ditch in Montgomery County, Alabama. It was built in 1987, so it is 38 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 118 vehicles a day, roughly 1% of them trucks, projected to reach 109 by 2044. The structure is 72 ft (21.9 m) long and 27 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesUnionacdmy-Ada Rd.
CrossesDrainage Ditch
Location.5 MI S of US 31
RouteCounty Highway 14
StateAlabama
Coordinates32.11408, -86.39186
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 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 rating76.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span24 ft (7.3 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118 (1989)
Projected traffic109 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$609,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Unionacdmy-Ada Rd. over Drainage Ditch built?

It was built in 1987, making it 38 years old in 2025.

What condition is Unionacdmy-Ada Rd. over Drainage Ditch 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 2024.

How much traffic does Unionacdmy-Ada Rd. over Drainage Ditch carry?

About 118 vehicles per day (1989 count), of which roughly 1% are trucks.

How long is Unionacdmy-Ada Rd. over Drainage Ditch?

The structure is 72 ft (21.9 m) long with a longest span of 24 ft (7.3 m) and a deck 27 ft wide.

Who owns Unionacdmy-Ada Rd. over Drainage Ditch?

It is owned by the County Highway Agency.