US Bridges

I-575 (nbl) over Sharp Mountain Creek

Good

Cherokee County, Georgia · 2.5 MI SW of Ball Ground · Structure no. 000000005700830

Built
1985
40 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
450 ft
4 main spans
Daily traffic
24,700
2024 count
Owner
State
State Highway Agency

About this bridge

I-575 (nbl) over Sharp Mountain Creek is a prestressed concrete stringer/multi-beam or girder carrying I-575 (nbl) over Sharp Mountain Creek in Cherokee County, Georgia. It was built in 1985, so it is 40 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 24,700 vehicles a day, roughly 1% of them trucks, projected to reach 42,375 by 2032. The structure is 450 ft (137.2 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-575 (nbl)
CrossesSharp Mountain Creek
Location2.5 MI SW of Ball Ground
RouteInterstate 575
StateGeorgia
Coordinates34.31335, -84.40865
Functional classRural Principal Arterial - Interstate

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 inspectionMarch 2024
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 geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length450 ft (137.2 m)
Longest span113 ft (34.4 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,700 (2024)
Projected traffic42,375 by 2032
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$2.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-575 (nbl) over Sharp Mountain Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is I-575 (nbl) over Sharp Mountain 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 March 2024.

How much traffic does I-575 (nbl) over Sharp Mountain Creek carry?

About 24,700 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-575 (nbl) over Sharp Mountain Creek?

The structure is 450 ft (137.2 m) long with a longest span of 113 ft (34.4 m) and a deck 45 ft wide.

Who owns I-575 (nbl) over Sharp Mountain Creek?

It is owned by the State Highway Agency.