US Bridges

I - 20 over Cook Springs Road

Good

St. Clair County, Alabama · I-20 over Cook Springs RD · Structure no. 019784

Built
2010
15 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
220 ft
3 main spans
Daily traffic
51,890
2024 count
Owner
State
State Highway Agency

About this bridge

I - 20 over Cook Springs Road is a prestressed concrete stringer/multi-beam or girder carrying I - 20 over Cook Springs Road in St. Clair County, Alabama. It was built in 2010, so it is 15 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 51,890 vehicles a day, roughly 28% of them trucks, projected to reach 62,692 by 2044. The structure is 220 ft (67.1 m) long and 148 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI - 20
CrossesCook Springs Road
LocationI-20 over Cook Springs RD
RouteInterstate 20
CountySt. Clair County
StateAlabama
Coordinates33.59577, -86.39597
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span90 ft (27.4 m)
Deck width148 ft (45.2 m)
Roadway width142 ft (43.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,890 (2024)
Projected traffic62,692 by 2044
Trucks28%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$8.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I - 20 over Cook Springs Road built?

It was built in 2010, making it 15 years old in 2025.

What condition is I - 20 over Cook Springs Road 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 March 2024.

How much traffic does I - 20 over Cook Springs Road carry?

About 51,890 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is I - 20 over Cook Springs Road?

The structure is 220 ft (67.1 m) long with a longest span of 90 ft (27.4 m) and a deck 148 ft wide.

Who owns I - 20 over Cook Springs Road?

It is owned by the State Highway Agency.