Alki Transfer/CSO Project

Tukwila, Washington

Owner: Municipality of Metropolitan Seattle

Client Name: Constructors-Pamco

Engagement Scope

The Sutor Group was engaged by Constructors - Pamco to prepare a price proposal for equitable adjustment. The amount of the equitable adjustment was $1,685,184. We presented our findings in negotiation proceedings between Pamco and King County.

Project description

Constructors - Pamco was a subcontractor to Volker Stevin Pacific. Volker Stevin was the prime contractor. Constructors - Pamco's work scope included the construction of a pump station, a siphon structure and all micro tunneling required by the contract. A total of 2,361 feet was micro tunneled using a Herrenknecht AVN 1200.

Entitlement issues

Changed soil conditions and breach of warranty in design

Type of impacts

Labor impacts resulting from the changed soil conditions encountered. Extended contract performance costs relating to the tunneling activities. Standby and additional equipment costs resulting from eh changed soil conditions.