Columbus Road Emergency Pump Station Engineering

Accelerated Pump Station Design Services

In February, 2006 a portion of Riverbed Street, on the west bank of the Cuyahoga River, failed due to movement of the adjacent riverbank slope. The Northeast Ohio Regional Sewer District (NEORSD) immediately engaged NTH Consultants to investigate the sewer and design a temporary support system. During construction of the support system, a second portion of the same sewer was threatened at a point further upstream, also by a slope failure.

Due to the on-going failures, NEORSD requested NTH Consultants begin an accelerated design for a 7 MGD Emergency Pump Station, called the Columbus Road Emergency Pump Station (CREPS).

Scope of Work
NTH Consultants immediately assembled a highly qualified team of consultants, including Tucker Young Jackson Tull, Inc. and MWH Americas, to assist in the design.

The design project included the following scope:

Development of a Conceptual Plan for a temporary pump station shaft which could later be incorporated into a permanent pump station facility.
Development of a two-phase construction sequence in order to expedite direct access to the sewer in case a failure occurred during construction of the pump station mechanical items.
Research and selection of a preferred site for the 30-foot diameter, 45- foot deep pump station shaft.
Geotechnical and Environmental investigations (Phase 1 and Phase 2) for the preferred site.
Development of a Basis of Design document and design drawings at 30%, 60%, 95% and 100% (Issued for Bid) levels. The project included coordination of civil, structural, mechanical, electrical, and instrumentation/controls designs.
Development of General and Technical specifications for bidding.
Development of Opinion of Probable Construction Cost.

The NTH Consultants Team completed the full design and submitted it to NEORSD in October, 2008. Throughout the process, NTH Consultants served as Project Manager and Prime Consultant to NEORSD.