Department of the Army, New England Division, Corps of Engineers, 424 Trapelo Road, Waltham, Massachusetts 02254-9149

36 -- SELF-REGULATING TIDE GATES POC Michelle Kewer, 617-647-8414 This is a search for sources. The U.S. Army Corps of Engineers, New England Division, requests submissions of technical data from companies that manufacture/market self-regulating tide gates. This data will be used to evaluate whether or not a company's gates are similar or equal to gates manufactured by Nekton of Fairfield, CT. The tide gates will be installed at the entrance of a concrete box culvert leading to a tidal salt marsh. The gates shall be equipped with floats to automatically open and close at predetermined water elevations. The gates shall not require electricity of any kind. The gates shall be controlled so that they are open during an incoming tide to allow water to flow into the marsh. The gates shall automatically close when the elevation of the incoming tide reaches a preset level. The gates shall automatically open when the tide recedes to allow water to flow out of the marsh. The gates shall be adjustable in the field to permit changing the water elevation at which the gates automatically open and close. The gates shall be designed to prevent the gate leaf from slamming or causing hydraulic surges within the box culvert as the gate transitions into the closed position. The gates shall have a 6-foot-wide by 4.5-foot-high clear opening for the passage of water. The gates shall be constructed of materials with a high resistance to the corrosive environment of salt water. The manufacturer shall have experience in manufacturing self-regulating tide gates and shall be capable of demonstrating gate performance as described herein. Gate performance shall be demonstrated using an actual gate installation. This is not a request for proposal and the Government does not intend to pay for the information solicited or received. The anticipated date for the release of the solicitation that will require use of these type of gates is 15 December 1995. Any interested organization must submit appropriate written data to allow evaluation of their product as to whether or not their gate is similar or equal to one manufactured by NEKTON of Fairfield, CT. within 15 days of this publication. (0313)

Loren Data Corp. http://www.ld.com (SYN# 0302 19951113\36-0001.SOL)