US Bridges

SR 20 (wbl) over SR 417 (I-575)

Good

Cherokee County, Georgia · In East Canton · Structure no. 000000005700130

Built
1976
49 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
353 ft
4 main spans
Daily traffic
12,300
2024 count
Owner
State
State Highway Agency

About this bridge

SR 20 (wbl) over SR 417 (I-575) is a steel stringer/multi-beam or girder carrying SR 20 (wbl) over SR 417 (I-575) in Cherokee County, Georgia. It was built in 1976, so it is 49 years old, older 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 12,300 vehicles a day, roughly 8% of them trucks, projected to reach 18,450 by 2031. The structure is 353 ft (107.6 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 20 (wbl)
CrossesSR 417 (I-575)
LocationIn East Canton
RouteState Highway 20
StateGeorgia
Coordinates34.23832, -84.46601
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Last inspectionMay 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 rating50.9 US tons
Inventory rating35.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length353 ft (107.6 m)
Longest span125 ft (38.1 m)
Deck width49 ft (15 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,300 (2024)
Projected traffic18,450 by 2031
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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$2.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 20 (wbl) over SR 417 (I-575) built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR 20 (wbl) 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 May 2024.

How much traffic does SR 20 (wbl) over SR 417 (I-575) carry?

About 12,300 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SR 20 (wbl) over SR 417 (I-575)?

The structure is 353 ft (107.6 m) long with a longest span of 125 ft (38.1 m) and a deck 49 ft wide.

Who owns SR 20 (wbl) over SR 417 (I-575)?

It is owned by the State Highway Agency.