US Bridges

Kimball Bridge RD over Big Creek

Good

Fulton County, Georgia · 2 MI SE of Alpharetta · Structure no. 000000012153520

Built
2011
14 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
3 main spans
Daily traffic
7,906
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kimball Bridge RD over Big Creek is a prestressed concrete stringer/multi-beam or girder carrying Kimball Bridge RD over Big Creek in Fulton County, Georgia. It was built in 2011, so it is 14 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 7,906 vehicles a day, roughly 1% of them trucks, projected to reach 10,200 by 2030. The structure is 210 ft (64 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKimball Bridge RD
CrossesBig Creek
Location2 MI SE of Alpharetta
RouteCounty Highway 85
StateGeorgia
Coordinates34.05071, -84.26928
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.9 US tons
Inventory rating35.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length210 ft (64 m)
Longest span95 ft (29 m)
Deck width52 ft (15.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,906 (2024)
Projected traffic10,200 by 2030
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Kimball Bridge RD over Big Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Kimball Bridge RD over Big 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 September 2023.

How much traffic does Kimball Bridge RD over Big Creek carry?

About 7,906 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Kimball Bridge RD over Big Creek?

The structure is 210 ft (64 m) long with a longest span of 95 ft (29 m) and a deck 52 ft wide.

Who owns Kimball Bridge RD over Big Creek?

It is owned by the City or Municipal Highway Agency.