addendum no. 03 · r1: gate operator shall be hysecurity model #222ss st or approved equivalent as...
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13750 San Pedro Ave
Suite 300
San Antonio, TX 78232
O 210-224-2800
F 210-545-3103
rsandh.com
LAREDO INTERNATIONAL AIRPORT ADDENDUM NO. 3 CARGO APRON PHASE 14 REHABILITATION June 25, 2020 Page 1 of 2
ADDENDUM NO. 03
DATE: June 25, 2020
TO: All Plan Holders
FROM: John Hippchen, P.E., RS&H Project Manager
RE: Laredo International Airport
Cargo Apron Phase 14 Rehabilitation
RS&H Project No.: 2230066000
This Addendum is hereby made a part of the Contract Documents, Specifications, and Drawings of the
above referenced project. All other requirements of the original Contract Documents, Specifications, and
Drawings shall remain effective in their respective order. ACKNOWLEDGE RECEIPT OF THIS
ADDENDUM (PAGES 1 THRU 2 PLUS ATTACHMENTS) BY INSERTING ITS NUMBER AND DATE IN
THE PROPOSAL FORM.
A. MODIFICATIONS TO TECHINICAL SPECIFICATIONS
1. Replace Specification G-210 page 2 with attached revised Specification G-210 page 2.
a. Added requirements regarding card reader/keypad.
B. MODIFICATIONS TO DRAWINGS
1. Replace Sheet E258 with revised attached Sheet E258.
a. Corrected typo of gate pay item.
b. Corrected typo of gate detail sheet
c. Corrected typo of gate operator model.
2. Replace Sheet E259 with revised attached Sheet E259.
a. Revised access control card reader/keypad callout.
C. ADDITIONAL BIDDER QUESTIONS
Q1: I need to know the brand and model numbers of the gate operator and access readers they are wanting.
Is it stated anywhere?
R1: Gate operator shall be Hysecurity Model #222SS ST or approved equivalent as shown in Detail 1 on Sheet E256 (There is a typo on Sheet E258, Sheet says #22SS, gate operator callout shall read #222SS). Contractor shall coordinate new sliding gate selection with gate operator prior to ordering any equipment.
The existing card reader/key pad is by hid global. Access control card reader/key pad shall be by hid global or approved equivalent and shall be compatible with existing control cabinet equipment and airport access control system.
13750 San Pedro Ave
Suite 300
San Antonio, TX 78232
O 210-224-2800
F 210-545-3103
rsandh.com
LAREDO INTERNATIONAL AIRPORT ADDENDUM NO. 3 CARGO APRON PHASE 14 REHABILITATION June 25, 2020 Page 2 of 2
D. ATTACHMENTS
1. G-210-2
2. Plan Sheet E258
3. Plan Sheet E259
ADDENDUM NO. 3 ISSUED BY:
RS&H, INC.
END OF ADDENDUM NO. 3
RS&H
City of Laredo Gate Access Equipment
Laredo International Airport G-210-2 June 25, 2020
Cargo Apron Phase 14 Rehabilitation Addendum No. 3
include all of the equipment and connections shown on the drawings.
3. Cable: Unless noted otherwise, conductor sizes are based on a 75°C, THWN-2, 600 volt insulation,
copper conductors, not more than three single insulated conductors, in raceway, in free air. The
conduit/duct sizes are based on the use of THWN-2, 600 volt insulated conductors. The Contractor
shall make the necessary increase in conduit/duct sizes for other types of wire insulation. In no case
shall the conduit/duct size be reduced. The minimum power circuit wire size shall be #12 AWG.
Conductor sizes may have been adjusted due to voltage drop or other engineering considerations.
Equipment provided by the Contractor shall be capable of accepting the quantity and sizes of
conductors shown in the Contract Documents. All conductors, pigtails, cable step-down adapters, cable
step-up adapters, terminal blocks and splicing materials necessary to complete the cable
termination/splice shall be considered incidental. Cable type, size, number of conductors, strand and
service voltage shall be as specified in the Contract Documents.
4. Steel Conduit: Rigid galvanized steel (RGS) conduit and fittings shall be hot dipped galvanized inside
and out and conform to the requirements of Underwriters Laboratories Standards 6, 514B, and 1242.
All RGS conduits or RGS elbows installed below grade, in concrete, permanently wet locations or other
similar environments shall be painted with a 10 mil thick coat of asphaltum sealer or shall have a factory
bonded polyvinyl chloride (PVC) cover. Any exposed galvanizing or steel shall be coated with 10 mil
of asphaltum sealer. When using PVC coated RGS conduit, care shall be exercised not to damage the
factory PVC coating. Damaged PVC coating shall be repaired per the manufacturer's written
instructions.
5. Plastic Conduit: Plastic conduit and fittings shall conform to the requirements of Underwriters
Laboratories Standards 514 and 651 and Article 352 of the current National Electrical Code. The type
of solvent cement shall be as recommended by the conduit/fitting manufacturer.
6. Concrete: Concrete shall conform to FAA Specification P-610.
7. Vehicle Access Gate: Shall meet the requirements shown in the plans. Materials shall be in accordance
with ASTM F1184 Type II Class 2 and FAA Specification F-162 Section 162-2.4.
8. Card Reader/Keypad: Manufactured by HID Global or approved equal. Card Reader/Keypad shall be
compatible with existing control cabinet equipment and airport access control system.
9. Bollards: Bollards shall meet the requirements shown in the plans and conform to TxDOT Item 5084.
SEQUENCE OF OPERATION
210-4.1 Vehicle Access Gate: To enter or exit, a security card is swiped on the keypad then a security
code is punched on the keypad. The gate operator verifies if the code is valid or invalid associated with the
security card. If the code is valid, the gate is opened. After the vehicle clears the safety loop inside the
gate, time delay is activated and the gate closes after time expires. For vehicular safety, the gate shall not
be allowed to close until after a vehicle has passed over and beyond a safety loop detector.
1
25' - 0"
4' - 0" 4' - 0"
25' - 0"
4' - 0"
4' - 0"
REPLACE GATE OPERATOR IN KIND WITH NEW GATE OPERATOR BY
HYSECURITY MODEL #222SS ST OR APPROVED EQUIVALENT.
COORDINATE ALL MOUNTING AND CONDUIT REQUIREMENTS WITH
MANUFACTURER'S INSTALLATION INSTRUCTIONS.
CONTRACTOR SHALL PROVIDE SUBMITTAL SHOWING GATE OPERATOR
FOUNDATION DESIGN AND LAYOUT DRAWING OF ALL CONDUIT
REQUIREMENTS IN ACCORDANCE WITH MANUFACTURER'S INSTALLATION
INSTRUCTIONS. POWER WILL COME FROM EXISTING SINGLE PHASE
120/240 VOLT POWER PANEL SHOWN ON THIS SHEET.
CONTRACTOR SHALL COORDINATE SLIDING GATE SELECTION WITH GATE
OPERATOR PRIOR TO ORDERING ANY EQUIPMENT.
SE
CU
RE
S
ID
E
PU
BL
IC
S
ID
E
SAW CUT FOR SAFETY LOOP TYP, LENGTH
AS REQUIRED DEPENDENT UPON OPENING
WIDTH, PLACEMENT OF SAFETY LOOPS IS
SYMMETRICAL ABOUT FENCE CENTERLINE.
SEE DETAIL ON SHEET E259 FOR
ADDITIONAL INFORMATION
ENTRANCE CARD READER OR
KEYPAD, SEE DETAIL ON
SHEET E259 FOR ADDITIONAL
INFORMATION, TYP
GATE, SEE CIVIL DRAWINGS FOR ADDITIONAL
INFORMATION, COORDINATE GATE OPERATOR
INSTALLATION WITH SLIDING GATE
MANUFACTURER'S SHOP DRAWINGS
SCALE:
VEHICLE SECURITY GATE LAYOUT DETAIL
N.T.S
1
E258
EXIT CARD READER OR KEYPAD,
SEE DETAIL ON SHEET E259 FOR
ADDITIONAL INFORMATION, TYP
EXISTING CONTROL EQUIPMENT
CABINET AND POWER PANEL
MOUNTED ON EXISTING UTILITY POLE
3/4" PVC CONDUIT WITH CONTROL CABLE
FROM CARD READER/KEYPAD TO EXISTING
CONTROL CABINET. CONDUIT IS SHOWN
ROUTED ORTHOGONALLY FOR GRAPHICAL
CLARITY PURPOSES ONLY, CONTRACTOR
SHALL INSTALL CONDUIT VIA MOST DIRECT
ROUTE. ALL CONDUIT UNDER PAVEMENT
SHALL BE CONCRETE ENCASED.
ALL ITEMS ON THIS SHEET ARE PART OF THE G-210-7.1 PAY ITEM (VEHICLE ACCESS
GATE, COMPLETE).
THE GATE OPERATOR CONTROL CABINET AND POWER PANEL SHALL REMAIN. THE GATE
OPERATOR SHALL BE REPLACED IN KIND, NEW ENTRANCE AND EXIT CARD
READERS/KEYPADS SHALL BE INSTALLED, AND NEW CONDUIT AS REQUIRED BY GATE
OPERATOR MANUFACTURER'S INSTALLATION INSTRUCTIONS SHALL BE INSTALLED.
BOLLARDS ON THIS SHEET ONLY ARE PART OF THE ABOVE REFERENCED PAY ITEM. SEE
SHEET C252 FOR GATE DETAILS.
CONTRACTOR SHALL COORDINATE COUNDUIT CONNECTIONS SHOWN HERE WITH
MANUFACTURER'S INSTALLATION INSTRUCTIONS.
3/4" PVC CONDUIT WITH CONTROL CABLE
FROM CARD READER/KEYPAD TO EXISTING
CONTROL CABINET. CONDUIT IS SHOWN
ROUTED ORTHOGONALLY FOR GRAPHICAL
CLARITY PURPOSES ONLY, CONTRACTOR
SHALL INSTALL CONDUIT VIA MOST DIRECT
ROUTE. ALL CONDUIT UNDER PAVEMENT
SHALL BE CONCRETE ENCASED.
3/4" PVC CONDUIT MIN WITH CONDUCTORS
FOR GATE OPERATOR SIZED PER NEC.
ALL CONDUIT UNDER PAVEMENT SHALL BE
CONCRETE ENCASED.
3/4" PVC CONDUIT TYP WITH SAFETY LOOP
CONDUCTORS TO GATE OPERATOR, PROVIDE
WATER TIGHT SEAL AROUND CONDUCTORS AT
CONDUIT ENTRANCE, COORDINATE CONDUIT
REQUIREMENTS AND ROUTING WITH
MANUFACTURER'S INSTALLATION INSTRUCTIONS.
GATE OPERATION NOTES
ENTRANCE/EXIT:
GATE IS SIGNALED TO OPEN AS A RESULT OF THE FOLLOWING EVENTS:
1. VALID CARD IS PRESENTED AT CARD READER AND VALID USER
ACCESS PIN INPUT INTO KEYPAD. AS THE VEHICLE PROCEEDS
THROUGH THE OPENING, BREAKING THE INFRARED PHOTO
SAFETY BEAM, AN IMPULSE IS TRANSMITTED TO HOLD THE GATE
IN AN OPEN POSITION. WHEN THE LOOPS AND INFRARED BEAM
HAVE BEEN CLEARED, THE GATE OPERATOR CLOSES THE GATE.
ELECTRICAL
DETAILS
(SHEET 8 OF 9)
E258
AIRPORT
2020 RS&H, INC.
5210 BOB BULLOCK LOOP
LAREDO
CONSULTANTS
SHEET NUMBER
REVISIONS
DATE ISSUED:
REVIEWED BY:
DRAWN BY:
RS&H PROJECT NUMBER
SHEET TITLE
DESIGNED BY:
DESCRIPTIONNO. DATE
CARGO APRON
Drawing: C:\pw_work\rsh_pw\pw_user\d0281336\E301.dwg Plotted by: Lopez, AnaPlotted on: 6/25/2020 8:22 AM
13750 San Pedro, Suite 300
San Antonio, Texas 78232
210-224-2800 FAX 210-545-3103
RS&H, Inc.
www.rsandh.com
PHASE 14
INTERNATIONAL
LAREDO, TX 78041
REHABILITATION
05-29-2020
223-0066-000
BID DOCUMENTS
Texas Registration No. F-3401
CAT
JEJ
JEJ
1 ADDENDUM 3 6/25/20
1
1
1
VEHICLE SECURITY GATE ELECTRICAL NOTES
1. UNLESS OTHERWISE NOTED, ALL CONDUIT ABOVE GROUND SHALL BE RIGID
GALVANIZED STEEL, ALL CONDUIT BELOW GROUND SHALL BE SCHEDULE 40 PVC.
2. ALL STEEL CONDUITS, FITTINGS, NUTS, BOLTS, ETC. SHALL BE GALVANIZED.
3. UNLESS OTHERWISE SHOWN, ALL EXPOSED CONDUITS SHALL BE RUN PARALLEL
TO OR AT RIGHT ANGLES WITH THE LINES OF THE STRUCTURE.
4. TAG BOTH ENDS OF ALL CONTROL CONDUCTORS TO IDENTIFY TERMINAL NUMBER
AND CIRCUIT.
5. ALL POWER AND CONTROL CIRCUIT CONDUCTORS SHALL BE COPPER; ALUMINUM
SHALL NOT BE ACCEPTED. THIS INCLUDES WIRE, CABLE, BUSSES, TERMINALS,
SWITCH/PANEL COMPONENTS, ETC.
6. UNDERGROUND POWER SUPPLY WIRING SHALL BE IN PVC CONDUIT AT LEAST 24
INCHES DEEP.
GATE OPERATION NOTES
ENTRANCE/EXIT:
GATE IS SIGNALED TO OPEN AS A RESULT OF THE FOLLOWING EVENTS:
1. VALID CARD IS PRESENTED AT CARD READER AND VALID USER
ACCESS PIN INPUT INTO KEYPAD. AS THE VEHICLE PROCEEDS
THROUGH THE OPENING, BREAKING THE INFRARED PHOTO
SAFETY BEAM, AN IMPULSE IS TRANSMITTED TO HOLD THE GATE
IN AN OPEN POSITION. WHEN THE LOOPS AND INFRARED BEAM
HAVE BEEN CLEARED, THE GATE OPERATOR CLOSES THE GATE.
SAFETY LOOP DETECTOR NOTES
1. THE FOLLOWING CHART MUST BE UTILIZED WHEN INSTALLING A LOOP
USED FOR VEHICLE DETECTION. THIS CHART LISTS THE PREDETERMINED
NUMBER OF TURNS THAT MUST BE MADE BY THE ACTUAL LOOP WIRES IN
ORDER TO CREATE AN ACCEPTABLE INDUCTANCE RANGE.
2. DUE TO THE LOSS OF INDUCTANCE CAUSED BY A DISTANCE GREATER
THAN 490 FEET FROM THE LOOP TO THE GATE DEVICE, AN ADDITIONAL
TURN OF LOOP WIRE IS RECOMMENDED DURING INSTALLATION.
3. A CLEAN, SMOOTH SAW SLOT MUST BE CUT INTO THE PAVEMENT WHERE
THE LOOP IS TO BE INSTALLED. THE INDUSTRY STANDARD REQUIRES THIS
SLOT TO BE A MINIMUM OF 1.50'' AND A MAXIMUM OF 3.50'' DEEP AS A
GENERAL RULE. WHEN A SOFTER PAVEMENT MATERIAL IS PRESENT, THE
GREATER SAW CUT DEPTH IS PREFERRED. THIS PROTECTS THE LOOP
WIRES FOR A LONGER PERIOD OF TIME.
4. AFTER THE LOOP SAW SLOTS HAVE BEEN CLEARED OUT, PROCEED TO
TUCK THE WIRE IN THE SLOTS WITH AN OBJECT THAT WILL NOT INJURE
THE WIRE INSULATION. WIND THE ACTUAL LOOP WITH #14 THHN
STRANDED WIRE OR EQUIVALENT. THE WIRE MUST BE RATED FOR DIRECT
BURIAL AND IMPERVIOUS TO MOISTURE. THIS WILL AVOID CHANGES IN THE
DIELECTRIC CONSTANT OF THE WIRE INSULATION WHICH MAY CAUSE
EXCESSIVE INDUCTANCE DRIFT. IT IS EXTREMELY IMPORTANT THAT THE
LOOP BE WOUND WITH ONE CONTINUOUS LENGTH OF WIRE. SPLICES ARE
NOT PERMITTED.
5. THE TWO WIRES THAT LEAVE THE LOOP AT THE CURB OR PAVEMENT
AFTER THE LOOP HAS BEEN PROPERLY WOUND, MUST BE TWISTED AT A
MINIMUM OF 5 TURNS PER FOOT AND TAPED TOGETHER WITH (UL)
APPROVED ELECTRICAL TAPE TO PREVENT THE WIRES FROM MOVING.
FAILURE TO TWIST AND SECURE THESE WIRES MAY PRODUCE A FALSE
SIGNAL FROM THE LOOP.
6. WHEN THE LOOP INSTALLATION HAS BEEN COMPLETED, CHOOSE A
SEALANT THAT CLOSELY MATCHES THE TYPE OF PAVEMENT MATERIAL
PRESENT. INDUSTRY RECOMMENDS (3M) LOOP DETECTOR SEALANT. HARD
SETTING EPOXIES SHOULD NOT BE USED WITH ASPHALT. AVOID HIGH
TEMPERATURE SEALANTS.
7. VEHICLE DETECTION LOOPS SHALL BE TWO PER GATE AND BE
CONFIGURED FOR SAFETY ONLY. ALL LOOPS SHALL BE INSTALLED TO
MANUFACTURERS SPECIFICATIONS AND FIELD LOCATED BY CONTRACTOR
AND ENGINEER. LOOPS SHALL BE SAWCUT INTO SOUND PAVEMENT.
WHERE PAVEMENT IS CRACKED, BROKEN OR OTHERWISE UNSOUND,
LOOPS SHALL BE INSTALLED IN SCHEDULE 80 PVC AND LOCATED IN THE
GRANULAR BASE PRIOR TO NEW PAVING BY OTHERS.
LOOP AREA
A) 6 - 12
B) 12 - 20
C) 20 - 60
D) 60 - 240
E) 240 & UP
NUMBER OF TURNS
6
5
4
3
2
LOOP DIMENSION
A) 2' X 6'
B) 2'-6'' X 6'
C) 4' X 8'
D) 6' X 9'
E) 12' X 20'
SCALE:
VEHICLE SECURITY GATE CARD READER/KEYPAD DETAIL
N.T.S
1
E259
1" CHAMFER AROUND
PERIMETER OF FOUNDATION
BOLLARD BEYOND
SEE CIVIL DRAWING FOR ISOLATION JOINT DETAIL
BETWEEN PAVEMENT AND CARD READER/KEYPAD
FOUNDATION
3/4" PVC CONDUIT WITH CARD
READER/KEY PAD CABLE TO
VEHICLE SECURITY GATE
CONTROL EQUIPMENT RACK
#6 BARE COPPER GROUND IN 3/4"
PVC CONDUIT FROM GROUND LUG
CLAMP ON GOOSE NECK STRUCTURE
TO GROUND ROD, EXOTHERMIC
WELD TO GROUND ROD
3/4" x 10' COPPER-CLAD STEEL
GROUND ROD, 12" MIN BELOW GRADE
6" BASE OF #57
CRUSHED AGGREGATE
BOLLARD AND GOOSENECK
CONCRETE FOUNDATION
DOUBLE GOOSENECK, MOUNT TO FOUNDATION PER
MANUFACTURER'S INSTALLATIONS INSTRUCTIONS
3' - 0"
6' - 0"
2' - 0"
2' - 6"
4' - 0"
6"
1' - 6"
1' - 0"
2' - 6"
3' - 0" 1' - 0"
6' - 0"
3' - 0"
2' - 0"
PLAN VIEW
2' - 6"
FRONT VIEW SIDE VIEW
ACCESS CONTROL CARD READER/KEY
PAD BY HID GLOBAL OR APPROVED
EQUIVALENT. CARD READER/KEY PAD
SHALL BE COMPATIBLE WITH EXISTING
CONTROL CABINET EQUIPMENT AND
AIRPORT ACCESS CONTROL SYSTEM
(NOTE - EXISTING CARD READER/KEY
PAD IN THIS AREA IS BY HID GLOBAL).
BOLLARD MADE OF 6" DIAMETER STEEL
CAPPED STEEL PIPE FILLED WITH
CONCRETE, PAINT WITH 2 COATS OF
YELLOW ENAMEL, COORDINATE COLOR
WITH OWNER. BOTTOM OF PIPE SHALL
BE 3" ABOVE BOTTOM OF FOUNDATION
BOLLARD CARD READER
KEYPAD
SAFETY LOOP OF #14 AWG THHN
OR APPROVED EQUIVALENT, SEE
SAFETY LOOP NOTES THIS SHEET
FOR ADDITIONAL INFORMATION
SCALE:
VEHICLE SECURITY GATE SAFETY LOOP DETECTOR DETAIL
N.T.S
2
E259
SEE SAFETY LOOP NOTES THIS
SHEET FOR QUANTITY OF
LOOPS REQUIRED
LOOP SAW CUT IN PAVEMENT
LOOP LEAD-IN WIRES
INCOMING LEAD-IN WIRES
FROM SECURITY GATE
CONTROL EQUIPMENT RACK
5' - 0"
FULL STRENGTH PAVEMENT,
SEE CIVIL DRAWINGS
SEE CIVIL DRAWING FOR ISOLATION
JOINT DETAIL BETWEEN PAVEMENT
AND CARD READER/KEYPAD
FOUNDATION
ELECTRICAL
DETAILS
(SHEET 9 OF 9)
E259
AIRPORT
2020 RS&H, INC.
5210 BOB BULLOCK LOOP
LAREDO
CONSULTANTS
SHEET NUMBER
REVISIONS
DATE ISSUED:
REVIEWED BY:
DRAWN BY:
RS&H PROJECT NUMBER
SHEET TITLE
DESIGNED BY:
DESCRIPTIONNO. DATE
CARGO APRON
Drawing: C:\pw_work\rsh_pw\pw_user\d0281336\E301.dwg Plotted by: Lopez, AnaPlotted on: 6/25/2020 8:18 AM
13750 San Pedro, Suite 300
San Antonio, Texas 78232
210-224-2800 FAX 210-545-3103
RS&H, Inc.
www.rsandh.com
PHASE 14
INTERNATIONAL
LAREDO, TX 78041
REHABILITATION
05-29-2020
223-0066-000
BID DOCUMENTS
Texas Registration No. F-3401
CAT
JEJ
JEJ
1 ADDENDUM 3 6/25/20
1