Dobson’s Run Drainage Improvement Project Update

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JPC has completed the wingwalls for the outfall at Dobson’s Run in East Falls. Another company, Jaydee Contractors of Michigan is constructing the drainage tunnel from Scotts Lane down Allegheny Ave. and under Laurel Hill Cemetery to the outfall below the ex-Reading Railroad bridges at East Falls. Apparently, early projections that the tunneling through mica schist would be slow going have proven false. Down at the Schuylkill, to build the forms for the concrete walls below river level, the Blackwood, NJ-based general contractor had go above and beyond the normal sheetpile coffer dam and build an earthen dam reinforced with vertical steel piles. A series of pumps keep the work area relatively dry though the foreman on the site remarked that during heavy flow, the work area is allowed to flood and then water is pumped out.

Follow the jump for more images.

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3 thoughts on “Dobson’s Run Drainage Improvement Project Update

  1. Please see comment below.

    “Apparently, early projections that the tunneling through mica schist would be slow going have proven false.”

    The tunneling did not start yet.

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