McMahon & Mann Consulting Engineering and Geology, P.C.

Cambridge Springs WWTP

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Cambridge Springs WWTP
Project Details
Location: Cambridge Springs, Pennsylvania
Client: Hill Engineering, Inc.
Client Contact: Mr. Clayton Fails 814-725-8659

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MMCE completed subsurface exploration and field and laboratory testing programs to characterize the site for an expansion to an existing wastewater treatment plant. The site is underlain by granular soil deposits with relatively high permeability. Construction of several tanks and a pump building required excavations extending 15 to 20 feet below the groundwater level.

MMCE prepared foundation recommendation and excavation and dewatering recommendations for construction. For most structures, surrounding the excavations with a series of dewatering wells and sloping the excavations was sufficient. However, the deepest structure required tight sheeting driven to a lower permeability deposit below the granular zone to limit contaminated groundwater migration into the excavation.

MMCE prepared a conceptual design for the braced sheet pile cofferdam and provided the client with recommendations and comments on the specifications. MMCE also reviewed and commented on the contractor’s plans for shoring the excavation. 

Related Documents

Cambridge Springs WWTP Project Description - This document contains information on this project

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