US Bridges

Montreal Road over SR 410(US78)- SR 410 Rmp

Good

DeKalb County, Georgia · 0.7 MI N of Clarkston · Structure no. 000000008901810

Built
1968
57 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
287 ft
5 main spans
Daily traffic
7,906
2024 count
Owner
State
State Highway Agency

About this bridge

Montreal Road over SR 410(US78)- SR 410 Rmp is a steel continuous stringer/multi-beam or girder carrying Montreal Road over SR 410(US78)- SR 410 Rmp in DeKalb County, Georgia. It was built in 1968, so it is 57 years old, older 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 2% of them trucks, projected to reach 10,050 by 2031. The structure is 287 ft (87.5 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMontreal Road
CrossesSR 410(US78)- SR 410 Rmp
Location0.7 MI N of Clarkston
RouteCity Street 9226
CountyDeKalb County
StateGeorgia
Coordinates33.81841, -84.24679
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.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating25.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length287 ft (87.5 m)
Longest span76 ft (23.2 m)
Deck width39 ft (11.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,906 (2024)
Projected traffic10,050 by 2031
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Montreal Road over SR 410(US78)- SR 410 Rmp built?

It was built in 1968, making it 57 years old in 2025.

What condition is Montreal Road over SR 410(US78)- SR 410 Rmp 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 June 2024.

How much traffic does Montreal Road over SR 410(US78)- SR 410 Rmp carry?

About 7,906 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Montreal Road over SR 410(US78)- SR 410 Rmp?

The structure is 287 ft (87.5 m) long with a longest span of 76 ft (23.2 m) and a deck 39 ft wide.

Who owns Montreal Road over SR 410(US78)- SR 410 Rmp?

It is owned by the State Highway Agency.