US Bridges

SR 155 over NS Railroad

Fair

Henry County, Georgia · City of Mcdonough · Structure no. 000000015100180

Built
1969
56 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
221 ft
4 main spans
Daily traffic
20,100
2024 count
Owner
State
State Highway Agency

About this bridge

SR 155 over NS Railroad is a steel stringer/multi-beam or girder carrying SR 155 over NS Railroad in Henry County, Georgia. It was built in 1969, 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 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 20,100 vehicles a day, roughly 7% of them trucks, projected to reach 29,100 by 2031. The structure is 221 ft (67.4 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 155
CrossesNS Railroad
LocationCity of Mcdonough
RouteState Highway 155
CountyHenry County
StateGeorgia
Coordinates33.42531, -84.14896
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating52.9 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length221 ft (67.4 m)
Longest span71 ft (21.6 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,100 (2024)
Projected traffic29,100 by 2031
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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$1.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 155 over NS Railroad built?

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

What condition is SR 155 over NS Railroad 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 November 2024.

How much traffic does SR 155 over NS Railroad carry?

About 20,100 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 155 over NS Railroad?

The structure is 221 ft (67.4 m) long with a longest span of 71 ft (21.6 m) and a deck 35 ft wide.

Who owns SR 155 over NS Railroad?

It is owned by the State Highway Agency.