US Bridges

SR20 (ebl) (A-588) over SR 417 (I-575)

Good

Cherokee County, Georgia · Level 2 of Tri-Level · Structure no. 000000005700110

Built
1982
43 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
277 ft
2 main spans
Daily traffic
23,600
2024 count
Owner
State
State Highway Agency

About this bridge

SR20 (ebl) (A-588) over SR 417 (I-575) is a steel continuous stringer/multi-beam or girder carrying SR20 (ebl) (A-588) over SR 417 (I-575) in Cherokee County, Georgia. It was built in 1982, so it is 43 years old, younger than the Georgia average of 47.5 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 23,600 vehicles a day, roughly 1% of them trucks, projected to reach 23,010 by 2031. The structure is 277 ft (84.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR20 (ebl) (A-588)
CrossesSR 417 (I-575)
LocationLevel 2 of Tri-Level
RouteState Highway 20
CountyCherokee County
StateGeorgia
Coordinates34.21944, -84.48938
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length277 ft (84.4 m)
Longest span140 ft (42.7 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic23,600 (2024)
Projected traffic23,010 by 2031
Trucks1%
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
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 proposedNone recorded
Estimated improvement cost$1.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR20 (ebl) (A-588) over SR 417 (I-575) built?

It was built in 1982, making it 43 years old in 2025.

What condition is SR20 (ebl) (A-588) over SR 417 (I-575) 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 April 2024.

How much traffic does SR20 (ebl) (A-588) over SR 417 (I-575) carry?

About 23,600 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR20 (ebl) (A-588) over SR 417 (I-575)?

The structure is 277 ft (84.4 m) long with a longest span of 140 ft (42.7 m) and a deck 45 ft wide.

Who owns SR20 (ebl) (A-588) over SR 417 (I-575)?

It is owned by the State Highway Agency.