US Bridges

Cogburn Road over Chicken Creek Trib

Good

Fulton County, Georgia · 4 MI N of Alpharetta · Structure no. 000000012152020

Built
1986
39 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
18,106
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cogburn Road over Chicken Creek Trib is a prestressed concrete box beam or girders - multiple carrying Cogburn Road over Chicken Creek Trib in Fulton County, Georgia. It was built in 1986, so it is 39 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 1% of them trucks, projected to reach 9,930 by 2031. The structure is 30 ft (9.1 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCogburn Road
CrossesChicken Creek Trib
Location4 MI N of Alpharetta
RouteCounty Highway 37
StateGeorgia
Coordinates34.13231, -84.2822
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.9 US tons
Inventory rating22.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,106 (2024)
Projected traffic9,930 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$176,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Cogburn Road over Chicken Creek Trib built?

It was built in 1986, making it 39 years old in 2025.

What condition is Cogburn Road over Chicken Creek Trib 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 October 2023.

How much traffic does Cogburn Road over Chicken Creek Trib carry?

About 18,106 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Cogburn Road over Chicken Creek Trib?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Cogburn Road over Chicken Creek Trib?

It is owned by the City or Municipal Highway Agency.