construction workers bolting railroad ties to new tracks

Railroad construction workers bolting ties to the new tracks of the San Francisco Municipal Railway.­

In this project, reinforced concrete is poured under the rails, and the rail ties bolts (large black bolts) will be encased in that layer of concrete.­

View more photos of railroad workers replacing a Muni lightrail tracks in San Francisco.

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598-630 Duboce Ave, San Francisco, CA 94114, USA

Photos of construction workers at work, with their heavy machinery and power tools.­

Road construction, infrastructure, building constructions etc.­

Photos of railroad workers replacing a Muni light rail track section on Duboce street, Church street and Market street (San Francisco).­

Each section of track work, such as replacement of the double diamond crossing structure at Church st and Market st, takes 2 or 3 days with crews working 24h during week-ends.­

The work was realized by local contractor NTK Construction.

I must thank NTK management and crew for letting me shoot those amazing photos on their construction site.­