US Bridges

Old Milton Parkway over SR 400 (us 19)

Fair

Fulton County, Georgia · In NE Alpharetta · Structure no. 000000012100750

Built
1969
56 years old, rebuilt 1995
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
304 ft
4 main spans
Daily traffic
48,400
2024 count
Owner
State
State Highway Agency

About this bridge

Old Milton Parkway over SR 400 (us 19) is a steel continuous stringer/multi-beam or girder carrying Old Milton Parkway over SR 400 (us 19) in Fulton County, Georgia. It was built in 1969 and reconstructed in 1995, so it is 56 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 6 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 48,400 vehicles a day, roughly 1% of them trucks, projected to reach 53,280 by 2031. The structure is 304 ft (92.7 m) long and 108 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOld Milton Parkway
CrossesSR 400 (us 19)
LocationIn NE Alpharetta
RouteState Highway 120
CountyFulton County
StateGeorgia
Coordinates34.06875, -84.27197
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length304 ft (92.7 m)
Longest span97 ft (29.6 m)
Deck width108 ft (33 m)
Roadway width94 ft (28.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,400 (2024)
Projected traffic53,280 by 2031
Trucks1%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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$4.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Old Milton Parkway over SR 400 (us 19) built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1995.

What condition is Old Milton Parkway over SR 400 (us 19) 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 September 2023.

How much traffic does Old Milton Parkway over SR 400 (us 19) carry?

About 48,400 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Old Milton Parkway over SR 400 (us 19)?

The structure is 304 ft (92.7 m) long with a longest span of 97 ft (29.6 m) and a deck 108 ft wide.

Who owns Old Milton Parkway over SR 400 (us 19)?

It is owned by the State Highway Agency.