US Bridges

Mack Dobbs Road over Bulter Creek

Good

Cobb County, Georgia · 1.6 MI W of Kennesaw · Structure no. 000000006752120

Built
1997
28 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
6,540
2024 count
Owner
County
County Highway Agency

About this bridge

Mack Dobbs Road over Bulter Creek is a prestressed concrete box beam or girders - multiple carrying Mack Dobbs Road over Bulter Creek in Cobb County, Georgia. It was built in 1997, so it is 28 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 6,540 vehicles a day, roughly 1% of them trucks, projected to reach 2,895 by 2032. The structure is 46 ft (14 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMack Dobbs Road
CrossesBulter Creek
Location1.6 MI W of Kennesaw
RouteCounty Highway 102
StateGeorgia
Coordinates34.0174, -84.6431
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.9 US tons
Inventory rating36.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length46 ft (14 m)
Longest span46 ft (14 m)
Deck width44 ft (13.4 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,540 (2024)
Projected traffic2,895 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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$270,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mack Dobbs Road over Bulter Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Mack Dobbs Road over Bulter Creek 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 2023.

How much traffic does Mack Dobbs Road over Bulter Creek carry?

About 6,540 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Mack Dobbs Road over Bulter Creek?

The structure is 46 ft (14 m) long with a longest span of 46 ft (14 m) and a deck 44 ft wide.

Who owns Mack Dobbs Road over Bulter Creek?

It is owned by the County Highway Agency.