US Bridges

SR 18 over NS Railroad

FairPosted for load

Monroe County, Georgia · 13 MI E of Forsyth · Structure no. 000000020700060

Built
1962
63 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
139 ft
3 main spans
Daily traffic
4,220
2024 count
Owner
State
State Highway Agency

About this bridge

SR 18 over NS Railroad is a steel stringer/multi-beam or girder carrying SR 18 over NS Railroad in Monroe County, Georgia. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 4,220 vehicles a day, roughly 1% of them trucks, projected to reach 4,230 by 2031. The structure is 139 ft (42.4 m) long and 32 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesSR 18
CrossesNS Railroad
Location13 MI E of Forsyth
RouteState Highway 18
CountyMonroe County
StateGeorgia
Coordinates33.01828, -83.72936
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29 US tons
Inventory rating17 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length139 ft (42.4 m)
Longest span52 ft (15.8 m)
Deck width32 ft (9.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,220 (2024)
Projected traffic4,230 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed16.8 mi (27 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$815,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 18 over NS Railroad built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR 18 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 September 2024.

How much traffic does SR 18 over NS Railroad carry?

About 4,220 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 18 over NS Railroad?

The structure is 139 ft (42.4 m) long with a longest span of 52 ft (15.8 m) and a deck 32 ft wide.

Who owns SR 18 over NS Railroad?

It is owned by the State Highway Agency.