ADDE
NDUM NO. 1
Service Center Security Gate Project
Project No. 2023-103
Bid Opening: March 23, 2023 at 2:00pm
Issue Date: March 14, 2023
The following clarifications and revisions are hereby made to the above referenced project.
1. Project Manual: Contract Section
6. Liquidated Damages. If
Contractor fails to complete the Work within the Contract Time, City will assess liquidated damages in the amount of $2,000 $1,500 per day for each day of unexcused delay in achieving Final Completion, and such liquidated damages may be deducted from City’s payments due or to become due to Contractor
under this Contract.
2. Delete
Specification Section 32 31 00 Security Fencing and Gates and replace with attached Specification Section
32 31 00.
Attachment E
City of Cupertino
Service Center Security Gate Project
2023-103
32 31 00 Security Fencing and Gates
32 31 00 SECURITY FENCING AND GATES
PART 1 – GENERAL
Gate shall be provided by A&D Automatic Gate and Access, 810 Warrington Avenue, Redwood City, 94062, no approved equal. Phone: (650) 365-8828.
Contractor shall furnish and install a fully functioning security gate with power to an existing panel on the City’s Service Building and with communication into communication room of the Service Building, as shown on the drawings.
Contractor will coordinate their scope of work with A&D’s scope of work and product to deliver a fulling functioning, turnkey gate to the City.
A&D and Contractor shall provide 2 hours of training to the City for operation of the gate.
PART 2 - PRODUCTS
2.1 PRODUCTS
Gate operator, long range reader/photo beam, fencing, call box, photo eye, and loops shall be recommended and supplied by A&D. Communication to call box shall be by internet cable back to the City’s communication room. Call box shall have light to illuminate the call box area.
Anticipated equipment includes:
a. Cell-gate W450 Watchman EVO with Live Streaming Video, plug and play internet option, with light.
b. IRB-RED Universal UL325-2016 Retroreflective Photoeye. c. ME 120 and MT20 Sensing Edge
d. Megatron 2200 PRO Motor
e. M62 Seri Magnalock
f. TagMaster XT-Series UHF reader vehicle access control.
Foundation for gates shall be coordinated with A&D.
2.2 VEHICLE GATES
Contractor shall furnish and install two 7’x 14’ steel gates. Gates will have a 3”x2” Hollow Steel Tube base frame with the remaining perimeter of 2”x2" hst.
Pickets will be set at 4” on center and will be ¾ x ¾ hst. Gates will hinge upon two 6”x 6”x .250 hst posts that we will excavate into the roadway and grout in place. Gates will be manufactured to meet ASTM F2200 standards and will be installed to meet UL325 Code requirements. Gates will be made to swing in toward the property in unison when activated. Gates will be finished with two coats of primer and a finish coat of low luster black spray fish that can be easily matched in the field.
City of Cupertino
Service Center Security Gate Project
2023-103
32 31 00 Security Fencing and Gates
2.3 VEHICLE GATE OPERATORS
Contractor shall furnish and install two new MAX 2200 Pro series swing gate operators. Gate operators will be mounted upon two 30”x30”x30” concrete pads. Operators shall be installed to manufacturer’s specifications and shall meet UL325 code. Operators shall be equipped with inherent reversing technology and battery backup.
2.4 SENSORS AND PHOTO EYE
Contractor shall furnish and install a reversing sensor on the leading edge of each of the two swing gates. Reversing edge sensors shall reverse the motion of the moving gate if the sensor contacts an object while the gate is in motion.
Contractor shall furnish and install a photo eye across the gate opening. Photo eye shall reverse the motion of the closing gates if an object breaks the beam while the gate is closing. Contractor shall furnish and install obstruction loops on each side of the gate line to sense if vehicles are in the path of the closing gate. Obstruction loops will act as a hold open device if a vehicle is detected in the gate path. A shadow loop shall be installed on interior of the opening to protect the area where the gate swing would otherwise trigger a safety default.
Gate shall be fitted with a new Securitron magnetic lock.
2.5 ACCESS
Contractor shall furnish and install an EV 450 Cell Gate, Cellular Telephone Entry System that is placed upon a gooseneck post on the exterior of the enclosure.
The EV 450 shall be equipped with online programming, a camera, live streaming video, a buffer that will store visitor information. The EV 450 shall tie into a Tagmaster Long Range reader that shall be installed near the gate opening. EV 450 shall act as a programming device for the Tagmaster system that can be programmed via any PC.
Contractor shall provide one hundred and fifty (150) heavy duty, passive transponders and twenty-five (25) passive, portable, “hang tags”. The gate shall be opened when any exiting vehicle crosses the free exit loop that is installed in a strategic area.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine areas and conditions, with A&D and City present, for compliance with requirements for site clearing, earthwork, pavement work, and other conditions affecting performance.
3.2 SITE COORDINATION AND INSTALLATION
A. Coordinate fence post layout and depth of footing with A&D. Contractor shall work with A&D for installation of posts and footings.
City of Cupertino
Service Center Security Gate Project
2023-103
32 31 00 Security Fencing and Gates
B. Coordinate conduit and pull box locations with A&D. Contractor shall place pull boxes to best serve the new gate and gate features.
C. Contractor shall pull all wiring and coordinate with the City for connection points for power and communications in order to deliver a functioning security gate with communication to the service building.
END OF SECTION 32 31 00