US Bridges

Shallowford Road over SR 417 (I-575)

Good

Cobb County, Georgia · 5.3 MI NE of Kennesaw · Structure no. 000000006701310

Built
1980
45 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
287 ft
2 main spans
Daily traffic
14,900
2024 count
Owner
State
State Highway Agency

About this bridge

Shallowford Road over SR 417 (I-575) is a prestressed concrete continuous box beam or girders - single or spread carrying Shallowford Road over SR 417 (I-575) in Cobb County, Georgia. It was built in 1980, so it is 45 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 14,900 vehicles a day, roughly 1% of them trucks, projected to reach 16,605 by 2032. The structure is 287 ft (87.5 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesShallowford Road
CrossesSR 417 (I-575)
Location5.3 MI NE of Kennesaw
RouteCity Street 9360
CountyCobb County
StateGeorgia
Coordinates34.06848, -84.54027
Functional classUrban 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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating35.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length287 ft (87.5 m)
Longest span150 ft (45.7 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,900 (2024)
Projected traffic16,605 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Shallowford Road over SR 417 (I-575) built?

It was built in 1980, making it 45 years old in 2025.

What condition is Shallowford Road 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 August 2023.

How much traffic does Shallowford Road over SR 417 (I-575) carry?

About 14,900 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Shallowford Road over SR 417 (I-575)?

The structure is 287 ft (87.5 m) long with a longest span of 150 ft (45.7 m) and a deck 48 ft wide.

Who owns Shallowford Road over SR 417 (I-575)?

It is owned by the State Highway Agency.