US Bridges

Dallas Powder Spr over Silver Comet Trail

Good

Cobb County, Georgia · 2.8 MI W Powder Springs · Structure no. 000000006702130

Built
1995
30 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
266 ft
3 main spans
Daily traffic
18,106
2024 count
Owner
County
County Highway Agency

About this bridge

Dallas Powder Spr over Silver Comet Trail is a prestressed concrete stringer/multi-beam or girder carrying Dallas Powder Spr over Silver Comet Trail in Cobb County, Georgia. It was built in 1995, so it is 30 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 18,106 vehicles a day, roughly 3% of them trucks, projected to reach 5,430 by 2032. The structure is 266 ft (81.1 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDallas Powder Spr
CrossesSilver Comet Trail
Location2.8 MI W Powder Springs
RouteCounty Highway 4516
StateGeorgia
Coordinates33.87805, -84.71813
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 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 rating92.9 US tons
Inventory rating39.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length266 ft (81.1 m)
Longest span102 ft (31.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,106 (2024)
Projected traffic5,430 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dallas Powder Spr over Silver Comet Trail built?

It was built in 1995, making it 30 years old in 2025.

What condition is Dallas Powder Spr over Silver Comet Trail 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 2023.

How much traffic does Dallas Powder Spr over Silver Comet Trail carry?

About 18,106 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Dallas Powder Spr over Silver Comet Trail?

The structure is 266 ft (81.1 m) long with a longest span of 102 ft (31.1 m) and a deck 47 ft wide.

Who owns Dallas Powder Spr over Silver Comet Trail?

It is owned by the County Highway Agency.