US Bridges

Al 77 over I 59

Fair

Etowah County, Alabama · Al 77 * I 59 · Structure no. 010073

Built
1969
56 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
310 ft
4 main spans
Daily traffic
12,210
2022 count
Owner
State
State Highway Agency

About this bridge

Al 77 over I 59 is a concrete continuous tee beam carrying Al 77 over I 59 in Etowah County, Alabama. It was built in 1969, so it is 56 years old, older 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 5 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 12,210 vehicles a day, roughly 12% of them trucks, projected to reach 17,094 by 2042. The structure is 310 ft (94.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAl 77
CrossesI 59
LocationAl 77 * I 59
RouteState Highway 77
StateAlabama
Coordinates33.9969, -86.08682
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.6 US tons
Inventory rating54.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length310 ft (94.5 m)
Longest span85 ft (25.9 m)
Deck width43 ft (13 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,210 (2022)
Projected traffic17,094 by 2042
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$3.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Al 77 over I 59 built?

It was built in 1969, making it 56 years old in 2025.

What condition is Al 77 over I 59 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 February 2024.

How much traffic does Al 77 over I 59 carry?

About 12,210 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Al 77 over I 59?

The structure is 310 ft (94.5 m) long with a longest span of 85 ft (25.9 m) and a deck 43 ft wide.

Who owns Al 77 over I 59?

It is owned by the State Highway Agency.