US Bridges

Thompson Road over Chicken Creek Trib

Fair

Fulton County, Georgia · 4 MI N of Alpharetta · Structure no. 000000012150090

Built
1962
63 years old
Condition
Fair
inspected October 2023
Type
Channel Beam
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
2,047
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Thompson Road over Chicken Creek Trib is a prestressed concrete channel beam carrying Thompson Road over Chicken Creek Trib in Fulton County, Georgia. It was built in 1962, so it is 63 years old, older than the Georgia average of 47.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,047 vehicles a day, roughly 1% of them trucks, projected to reach 2,910 by 2031. The structure is 90 ft (27.4 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesThompson Road
CrossesChicken Creek Trib
Location4 MI N of Alpharetta
RouteCounty Highway 19
CountyFulton County
StateGeorgia
Coordinates34.13314, -84.30765
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 alignment7: Better than present minimum criteria
Operating rating39.9 US tons
Inventory rating23.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,047 (2024)
Projected traffic2,910 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$527,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Thompson Road over Chicken Creek Trib built?

It was built in 1962, making it 63 years old in 2025.

What condition is Thompson Road over Chicken Creek Trib in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

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

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

How long is Thompson Road over Chicken Creek Trib?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns Thompson Road over Chicken Creek Trib?

It is owned by the City or Municipal Highway Agency.