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excavators with jackhammer attachments

If you know the model of those Caterpillar excavators, , please post a comment or email me, thanks!

Caterpillar excavators with hydraulic jackhammers are breaking the street paving.­

View more photos of railroad workers replacing a Muni lightrail track section on Church street in San Francisco.

2099 Market St, San Francisco, CA 94114, USA

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.­