US Bridges

Unionacdmy-Ada Rd. over Drainage Relief

Good

Montgomery County, Alabama · 4.6 MI East of US 31 · Structure no. 014206

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

About this bridge

Unionacdmy-Ada Rd. over Drainage Relief is a concrete channel beam carrying Unionacdmy-Ada Rd. over Drainage Relief 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 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 118 vehicles a day, roughly 1% of them trucks, projected to reach 109 by 2044. The structure is 68 ft (20.7 m) long and 27 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesUnionacdmy-Ada Rd.
CrossesDrainage Relief
Location4.6 MI East of US 31
RouteCounty Highway 14
StateAlabama
Coordinates32.10805, -86.32809
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating80.2 US tons
Inventory rating48.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span34 ft (10.4 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$578,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

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

What condition is Unionacdmy-Ada Rd. over Drainage Relief 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 Relief carry?

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

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

The structure is 68 ft (20.7 m) long with a longest span of 34 ft (10.4 m) and a deck 27 ft wide.

Who owns Unionacdmy-Ada Rd. over Drainage Relief?

It is owned by the County Highway Agency.