US Bridges

Al 22 over Cahaba River Relief #2

Fair

Dallas County, Alabama · 7.1 Mi.W.Of US 80 · Structure no. 011218

Built
1974
51 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
170 ft
5 main spans
Daily traffic
4,050
2013 count
Owner
State
State Highway Agency

About this bridge

Al 22 over Cahaba River Relief #2 is a concrete tee beam carrying Al 22 over Cahaba River Relief #2 in Dallas County, Alabama. It was built in 1974, so it is 51 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 4,050 vehicles a day, roughly 9% of them trucks, projected to reach 4,912 by 2033. The structure is 170 ft (51.8 m) long and 31 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesAl 22
CrossesCahaba River Relief #2
Location7.1 Mi.W.Of US 80
RouteState Highway 22
StateAlabama
Coordinates32.36595, -87.11558
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.7 US tons
Inventory rating29.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,050 (2013)
Projected traffic4,912 by 2033
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed49.7 mi (80 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Al 22 over Cahaba River Relief #2 built?

It was built in 1974, making it 51 years old in 2025.

What condition is Al 22 over Cahaba River Relief #2 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 Al 22 over Cahaba River Relief #2 carry?

About 4,050 vehicles per day (2013 count), of which roughly 9% are trucks.

How long is Al 22 over Cahaba River Relief #2?

The structure is 170 ft (51.8 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Al 22 over Cahaba River Relief #2?

It is owned by the State Highway Agency.