US Bridges

SR-77 over I-20

Fair

Talladega County, Alabama · JCT I-20 and SR-77 · Structure no. 011549

Built
1964
61 years old, rebuilt 1976
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
265 ft
4 main spans
Daily traffic
19,882
2020 count
Owner
State
State Highway Agency

About this bridge

SR-77 over I-20 is a concrete continuous tee beam carrying SR-77 over I-20 in Talladega County, Alabama. It was built in 1964 and reconstructed in 1976, so it is 61 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 19,882 vehicles a day, roughly 4% of them trucks, projected to reach 27,835 by 2040. The structure is 265 ft (80.8 m) long and 60 ft wide.

Location

Open in Google Maps
CarriesSR-77
CrossesI-20
LocationJCT I-20 and SR-77
RouteState Highway 77
CountyTalladega County
StateAlabama
Coordinates33.58991, -86.12439
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.9 US tons
Inventory rating37.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length265 ft (80.8 m)
Longest span73 ft (22.3 m)
Deck width60 ft (18.2 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,882 (2020)
Projected traffic27,835 by 2040
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-77 over I-20 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1976.

What condition is SR-77 over I-20 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 April 2024.

How much traffic does SR-77 over I-20 carry?

About 19,882 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SR-77 over I-20?

The structure is 265 ft (80.8 m) long with a longest span of 73 ft (22.3 m) and a deck 60 ft wide.

Who owns SR-77 over I-20?

It is owned by the State Highway Agency.