LWSC Large Lock Center Gate Replacement (Sources Sought Amd_0001).pdf

SOURCES SOUGHT SYNOPSIS

Amendment 0001

This sources sought synopsis will provide market research to identify parties having an interest in, and the resources to support this requirement for the replacement of the two (2) center miter gates for the main lock leaves at Ballard (Hiram M. Chittenden) Locks, Seattle, WA. Replacement of the existing 100-year old miter gate leaves will require removal and disposal of the old gates and fabrication/delivery/installation of two new gate leaves. The result of this market research will help determine an appropriate acquisition strategy. The applicable North American Industry Classification System (NAICS) code assigned to this procurement is 237990 Other Heavy and Civil Engineering Construction.

MAGNITUDE OF CONSTRUCTION: The magnitude of this construction project is between $10,000,000 and $25,000,000

There is no solicitation at this time. This request for capability information does not constitute a request for proposals; submission of any information in response to this market survey is purely voluntary; the government assumes no financial responsibility for any costs incurred.

If your organization has the potential capacity to perfor m these contract services, please provide the following information:

1) organization name, address, email address, website address, telephone number, and either DUNS number or CAGE code, as well as type of ownership for the organization; and

2) tailored capability statements addressing the particulars of this effort, with appropriate documentation supporting claims of organizational and staff capability. If significant subcontracting or teaming is anticipated in order to deliver technical capability, organizations should address the administrative and management structure of such arrangements.

The U.S. Army Corps of Engineers, Seattle District is hosting an Industry Day on March 24, 2021 at the Ballard Locks to provide more information on an upcoming requirement for the replacement of the large lock center miter gate and associated infrastructure. During Industry Day, Corps officials will provide an updated overview of the LWSC Large Lock Center Gate Replacement project requirements.

Responses to this sources sought notice/market research will determine if this requirement may be set-aside for small businesses or procured through full and open competition. Telephone inquiries will not be accepted or acknowledged, and no feedback or evaluations will be provided to companies regarding their submissions.

Submission Instructions:

Interested parties who consider themselves qualified to perform the above-listed services are invited to submit a response to this Sources Sought Notice by March 19, 2021; 2:30 pm local time (PST). All responses under this Sources Sought Notice must be emailed to Vincent.e.daniels@usace.army.mil.

If you have any questions concerning this opportunity, please contact:

Vincent E. Daniels Acquisition Management Specialist Email: vincent.e.daniels@usace.army.mil.

mailto:Vincent.e.daniels@usace.army.mil mailto:vincent.e.daniels@usace.army.mil

APPENDIX 1: Purpose and Objectives

DEMOLITION/DECONSTRUCTION:

Replacement of the existing 100-year old miter gate leaves will require removal and disposal of the old gates and fabrication/delivery of two (2) new gate leaves. Each new gate leaf is estimated to weigh approximately 375,000 lbs. Horizontal and vertical concrete removal will be required to remove the existing gate quoin blocks, pintles, and gate anchorage embedded metals.

Heavy-lift crane operations for removal and installation of the new miter gates will be required, with limited land based access to the gate location for equipment. Any use of floating-plant heavy-lift cranes will need to operate within the constraints of the lock dimensions and existing structures for adequate boom clearance and swing radius. The main lock chamber is 80 feet wide, with an overall chamber length of 825 feet, and an upstream pool draft of 33.5 feet when the saltwater barrier is down, and an upstream draft of 16.0 feet with the saltwater barrier raised. Downstream pool elevation varies with two (2) high tides, and two (2) low tides each day. Average water surface elevation for lower pool is 29.0 feet but can vary down to 15.0 feet of draft during extreme low tide (See Figure 3).

The sequencing of concrete modifications, in conjunction with allowing navigation traffic thru the lock chamber, will require the design/fabrication/installation/dewatering of localized steel cofferdams to isolate work areas “in the dry” to perform the work.

One lock chamber dewatering is anticipated to adjust and commission the miter gate after installation.

The duration of the dewatering is expected to be 45 days. The dewatering will be scheduled in advance and shall not be executed consecutive to another dewatering. The Government will perform the initial dewatering of the lock chamber for each closure period and the Contractor will be responsible for all maintenance pumping to keep the lock in a dewatered condition during the construction periods.

NEW GATE INSTALLATION:

The new contractor-fabricated miter gate leaves will be installed in the existing gate recesses with new gate anchorages placed into the concrete. New intermittent contact quoin blocks and sealing surfaces will be retrofitted vertically in the concrete gate monoliths. The new gate pintles will incorporate self-lubricating pintle balls as part of a fixed-pintle design into new embedded metals at the bottom of the lock chamber. The existing gate operating machinery will be reused and connected to the new gates. Existing electrical equipment on the gates will be removed and reinstalled on the new gates.

Figure 1. Site Map of Ballard Locks

Figure 2. Satellite Image Ballard Locks

Figure 3. Mean Water Elevation