US Bridges

Concord Road over Silver Comet Trail

Good

Cobb County, Georgia · 2.5 Miles South West of S · Structure no. 000000006752710

Built
2009
16 years old
Condition
Good
inspected May 2023
Type
Truss - Thru
Steel
Length
65 ft
1 main span
Daily traffic
2,047
2024 count
Owner
County
County Highway Agency

About this bridge

Concord Road over Silver Comet Trail is a steel truss - thru carrying Concord Road over Silver Comet Trail in Cobb County, Georgia. It was built in 2009, so it is 16 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 2,047 vehicles a day, roughly 1% of them trucks, projected to reach 7,755 by 2032. The structure is 65 ft (19.8 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesConcord Road
CrossesSilver Comet Trail
Location2.5 Miles South West of S
RouteCounty Highway 1782
CountyCobb County
StateGeorgia
Coordinates33.85175, -84.55836
Functional classUrban Local

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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating35.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length65 ft (19.8 m)
Longest span65 ft (19.8 m)
Deck width18 ft (5.4 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,047 (2024)
Projected traffic7,755 by 2032
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed3.7 mi (6 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$277,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Concord Road over Silver Comet Trail built?

It was built in 2009, making it 16 years old in 2025.

What condition is Concord Road 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 May 2023.

How much traffic does Concord Road over Silver Comet Trail carry?

About 2,047 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Concord Road over Silver Comet Trail?

The structure is 65 ft (19.8 m) long with a longest span of 65 ft (19.8 m) and a deck 18 ft wide.

Who owns Concord Road over Silver Comet Trail?

It is owned by the County Highway Agency.