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HomeMy WebLinkAboutResolution - 061275E - Change Order 2- Kerr Construction Co - LBK Regional Airport - 06_12_197516 r-, KJ:rmj RESOLUTION BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: THAT the MAYOR of the CITY OF LUBBOCK, BE and is hereby authorized and directed to execute for and on behalf of the CITY OF LUBBOCK Change Order No. 2 to an AGREEMENT between the CITY OF LUBBOCK and KERR CONSTRUCTION COMPANY to provide for field lighting circuits and controls for the new Control Tower and the construction of a perimeter road at -the LUBBOCK REGIONAL AIRPORT, attached herewith which shall be spread upon the Minutes of the COUNCIL and as spread upon the Minutes of this COUNCIL shall constitute and be a part of this Resolution as if fully copied herein in detail. Passed by the City Council this 12th day of June 1975. tl:&Ss ROY BAS , MAYOR A T TEST: Cc/ , Treva Phillips,' �Ci Secretary -Treasurer APPROVED AS TO FORM: Fred O. Winter, J ity Attorney CONTRACT COPY FAA CHANGE ORDER no. 2 Terminal Parking and Roadway Construction Lubbock Regional Airport Lubbock, Texas ADAP Project No. 8-48-0138-02 Contract No. 2 TO: KERR CONSTRUCTION COMPANY P. 0. Box 888 Lubbock, Texas 79408 General description of work included in contract: The construction of approximately 42,000 square yards of flexible pavement on entrance and service roads to the terminal building, construction of approximately 35,000 square yards of flexible pavement in the terminal parking area, construction of approximately 6,200 square yards of flexible pavement in the auto -rental storage areas, construction of approximately 15,000 linear feet of curb and gutter on the service roads, construction of approximately 3,400 linear feet of curb and gutter in the parking area, construction of two attendant's buildings in the parking area, construction of area light- ing on the service roads and in the parking area, installation of parking - control equipment, construction of drainage structures, construction of concrete slabs, removal of existing pavement, painting of roads and park- ing areas, and other related items of work. Original amount of contract . . . . . $992,464.85 Change Order No. 1. . . . . . . . . . . .(Deduct) 320.00 Change Order No. 2. . . . . . . ..(Add) 97,679.10 ' Adjusted Contract Price $1,089,823.95 Adjustment in Construction Time: .Original Date of Completion September 15, 1975 Change Order No. 1 (None) -0-.Days Change Order -No. 2 ..... (Add)_49 Days Adjusted Date of Completion November 3, 1975 WHEREAS, it is desirable to make changes in the work to be con- structed under this project. THIS AGREEMENT WITNESSETH: In consideration of the mutual advantage gained, the Owner and the Contractor agree to the changes as follows: 1. Construct a perimeter road north of Runway 26, extending from Guava Avenue westward for approximately 5,800 feet. Work shall include excavation, grading, topsoiling, caliche base, prime coat, tack coat, bituminous surface course, drainage structures, painting, and other related items of work. - CHANGE ORDER NO. 2 Page 1 of 2 2. Construct an airport lighting control system for the new north control tower. Work shall include installing underground con- trol cable from the existing lighting vault to the new north control tower, furnish and install electrical equipment and wiring in the existing lighting vault and in the new north control tower, and other related items of work. The above work shall be as shown on the plans -entitled, "City of Lubbock, Texas, Lubbock Regional Airport, Perimeter Road and Lighting Control System," dated May, 1975, and the specifications attached hereto. The aforementioned changes, and work affected thereby,.are subject to all contract stipulations and covenants. The Owner and Contractor agree that the work required to accomplish the above -listed changes shall be paid for at the unit prices set forth in Proposal D, attached hereto.. The quantities for payment shall be determined as specified in the Contract Documents and in the specifications attached hereto. The estimated cost of the above -listed changes is an increase of $97,679.10. The Owner and the Contractor agree that the'time allowed for completion of the project shall, be extended 49 -days from September =15, -1975, 'to 'Novem- ber -3 ' -1975. The project -shall include the work included in Proposals A,B,C and D.` . " IN WITNESS WHEREOF, the Owner and the Contractor have hereto set their hands this the day of , 1975. RECOMMENDED: PARKHILL, SMITH & COOPER, INC., Consulting Engineers By 1975 APPROVED: KERR CONST UCTI:09N COMPANY, Contractor By1975 APPROVED: CITY Zbeff, TEXAS, Owner By �S OY •� 1975 ATTEST _ City Secre ry j pppr�ed as to form: Emd O. senter, Jr., City Atto �ey' CHANGE ORDER NO. 2 Page 2 of 2 PROPOSAL D PERIMETER ROAD & LIGHTING CONTROL SYSTEM FAA PARTICIPATING ADAP PROJECT NO. 8-48-0138-07 CONTRACT No. 2 Item Quantity No. & Unit Description of Item and Unit Prices Total Amount D-1 16,400 Excavation and Grading for 6" Base, S.Y. Complete, per square yard. - No Dollars and Sixty Cents ($ 0.60 } $ 9,840.00 D-2 42,100 Grading and Topsoiling in Unpaved Areas, S.Y. Complete, per square yard: No Dollars and_ Twenty-five Cents ($ 0.25 ) $ 10,525.00 ' D-3 16,400 6" Caliche Base, Complete, per square i S.Y. yard: 'I One Dollars F. and Sixty-four Cents ($ 1.64 ) $'26;896.00 f:�l D-4 4,500 Bituminous Prime Coat, per gallon: E i; Gal. No Dollars . and Eighty-six Cents Q 0.86 ) $ 3,870.00 D-5 1,0.00 Bituminous Tack Coat, per gallon:` Gal. No Dollars and One Cents ($ 0.01 ) $ 10.00 D-6 14,800 1-1/2-inch Bituminous Surface Course, S.Y. Complete, per square yard: One Dollars i and Fifty-five Cents ($ 1.55 } $ 22,940.00 Proposal D - Page 1 of 4 Item Quantity No. & Unit Description of Item and Unit Prices Total Amount D-7 4 Concrete Headwalls for Culverts, Com- Each plete, each• Four Hundred Ninety Dollars and No Cents. ($ 490:00 ). 1,960.00 D-8 1,120 Roadway and Parking Painting, per square S.F. foot: No Dollars and Thirty-three Cents ($ 0.33 ) , 3.69.60 D-9 104 15-inch Reinforced Concrete Culvert L.F. Pipe, Class III, Complete, per linear foot Sixteen Dollars d an Forty Cents ($ 16.40 ) $� 1.705.60 D-10 84 24-inch Reinforced Concrete Culvert L.F. Pipe, Class III, Complete, per linear , foot: r . Twenty Dollars and Forty-five Cents.($ 20.45 ) $ h,717.80 D-11 1 Traffic Control Signs, Furnished and Each Installed, Complete, each: One Hundred Twenty-two Dollars and Fifty Cents ($ .122.50 ) $ 122.50 D-12 5,300 Remove Existing Fencing and Deliver to ' L.F. Owner Complete, per linear foot: No Dollars and Seventy-four Cents ($ 0.74 ) $ 3,922.00 Proposal D - Page 2 of 4 Change Order No,_2 Item Quantity No. & Unit Description of Item and Unit Prices Total Amount D-13 6,000 Cable Trench, 6" wide, 36" deep, per ! i L.F. linear foot: No Dollars. and Thirty-three Cents ($ 0.33 ) $ 1,980.00 D-14 6,000 Underground Control Cable, 25 pair, L.F. No. 19 AWG, Direct Burial, furnished `. and,installed in trench, per linear foot: No Dollars ,Sixty-nine and and Three Tenths. Cents. ($ 0.693 } $ 4,158.00 D-15 600 -Underground Control Cable, 25 pair, L.F. No. 19 AWG, Direct Burial, furnished and installed in conduit or duct, per linear foot• No Dollars and Eighty-eight Cents Q 0.88 } $ 528.00 D-16 150 Underground Control Cable, 25 pair, L.F. No. 19 AWG, Direct Burial, furnished and installed in New North Control Tower, per linear foot: One Dollars and Seventy-six Cents ($ 1.76 ) $ 264.00 D-17 10 Cable or Duct Markers, furnished and Each installed, Complete, each: Sixteen Dollars and Fifty Cents Q 16.50 } $ ... 165.00 D-18 1 Electrical Equipment and Wiring In - Job stalled in Lighting Vault, including removal and rearrangement of specified existing equipment, complete, for the lump sum price of: Four Thousand Eight Hundred Fifty-seven Dollars and Sixty Cents 04,857.60 ) $ 4,857.60 Proposal D - Page 3 of 4 Item Quantity No. & Unit Description of Item and'Unit Prices Total Amount D-19 1 Electrical Equipment and Wiring In - Job stalled in New North Control Tower, including removal and rearrangement of specified existing equipment, complete,. for the lump sum price of: One Thousand Five Hundred Fifty-one -.- Dollars A and No Cents ($1,551.00 j $ 1,551.00 D-20 30 1-way., 4-inch, Underground Duct, Fur- L.F. nished Installed in Trench, including elbows, accessories, trenching, con- crete envelope and backfilling, per linear foot: Three Dollars and Eighty-five Cents ($ 3.85 $ 115.50 D-21 30 2-way, 4-inch, Underground Duct, Fur- L.F. nished Installed in Trench, including elbows, accessories, trenching, -con- crete envelope and backfilling, per linear foot: six Dollars and Five Cents ($ 6.05 } $ 181.50 i PROPOSAL D - TOTAL BID ITEMS D-1 THROUGH D-21 INCLUSIVE_ $ 97,679.10 FAA PARTICIPATING ITEMS Proposal D - Page 4 of 4 1 p v Change Order No. 2 i i I`® CHANGE ORDER NO. 2 Terminal Parking And, Roadway Construction Lubbock Regional Airport Lubbock, Texas Work included in Change Order No. 2 shall be done under ADAP Project No. 8-48-0138-07, Contract No. 2. SPECIFICATIONS AND CONTRACT DOCUMENTS Work included in Change Order No. 2 shall be in accordance with the original Specifications and Contract Documents except as modified herein. The following additions apply only to work included in Change Order No. 2. 1 ii is ri jIl ;I _ 1 _ The following shall be added to the SPECIAL. PROVISIONS: SP-4 PHASING AND LIMITATION OF OPERATIONS During construction of the new perimeter road, provisions shall be made for the safe and efficient operation of all vehicular traffic in that area. During construction and installation of the airport lighting control system, the Contractor shall obey the safety requirements set forth in other parts of the Contract Documents. When working in the operational area of the airport, the Contractor shall be required to equip vehicles used by the superintendent or fore- man with a radio/receiver/transmitter for maintaining direct communica- tion with the FAA control tower at Lubbock Regional Airport. The Contractor shall coordinate his work on the airport lighting control system, through the Engineer, with the Director of Aviation to the end that no interference with aircraft traffic on active runways or taxiways will result from the operation of the Contractor. No equip- ment will be allowed within 250 feet of the centerline of any active runway or within 150 feet of the centerline of any active taxiway. a The new north control tower is under construction and scheduled for completion in the early part of 1976. 1The time of placing the new ` control tower in service is expected to be during the spring or summer of 1976. The Contractor shall be responsible for making the final connections of the airport lighting control system at the time the new control tower is placed in operation. The existing control system shall remain in operation until that time. The change from the existing con- trol system to the new system shall be accomplished without loss of control or use of the airport lighting system. Work included in Proposal D shall not be done to the.-detrinent or progress of work included in Proposals A,B and C. k - 2 - SP-S PAYMENT Payments for work completed under Proposal D shall be made separately from those for work under Proposals A, B, and C. .The 10 percent retainage for Proposal D and the 10 percent retainage for Proposals A, B, and C shall be determined seperately. The value of, or completion of, work -under each of the two parts will not effect the retainage under the other part. r - 3 SP-7 LINES. AND GRADES The Engineer will provide the Contractor with one initial set of horizontal control stakes along the Base Line for the new perimeter road. These shall be set at 100 feet intervals. Vertical control, or elevation, for the perimeter road shall be obtained by the Contractor from the elevation of a Bench mark located in the general area of the perimeter road. The lighting control cable will in general be located from existing paving or structures. - 4 The following shall be added to Section 14, INSTALLATION OF UNDER GROUND CABLE• 14-2.2 Cable Telephone control cable shall be copper shielded, poly- ethylene insulated and jacketed, No. 19 AWG Telephone cable conforming to the United States Department of Agriculture, Rural Electrification Administration (REA) Bulletin 345-14, REA Specification for fully Color -Coded Polyethylene Insulated, Double Polyethylene jacketed Telephone cables for Direct Burial. 14-2.3 Cable Connections The cast splice. A cast splice, employing a plastic mold and using epoxy resin equal to that manufactured by Minnesota Mining f and Manufacturing Company "Scotchcast" Kit No. 82-A, or as manufactured by Hysol Corporation, "Hyseal Epoxy Splice" Kit No. E1185, for potting of the splice is approved. This means of splicing is the only type approved for telephone control cable. In all the above cases, connections to cable conductors shall be made using crimp connectors utilizing a crimping tool designed to make a complete crimp before the tool can be removed. No. 19 AWG telephone control wires may be connected by means of wrapped and soldered splice, 3M Company Moisture Proof UR type connector, or equal, or by a method approved by the Engineer. 14-3.8 Splicing (b). Cast Splices. These shall be made by using crimp connectors for jointing conductors. Molds shall be assembled, and the compound shall be mixed and poured in accordance with manufacturers instructions and to the satisfaction of the Engineer. i The fallowing, Section 20, INSTALLATION OF VAULT EQUIPMENT AND CONTROL TOWER EQUIPMENT shall be added. SECTION 20 INSTALLATION OF VAULT EQUIPMENT AND CONTROL TOWER E UIPMENT FAA ITEM L-109 (MODIFIED) 20-1 DESCRIPTION This item shall consist of furnishing and installing all vault and control tower equipment, wiring, electrical buses, cable, conduit, grounding and rearrangement of existing facilities in an existing vault and at the new north control tower. This work shall also include the painting of equipment and con- duit; the marking and labeling of equipment and the labeling or tagging of wires; the testing of the installation; and the furnishing of all incidentals necessary to place it in operating -condition as a completed unit to the satisfaction of the Engineer. 20-2. EQUIPMENT AND MATERIALS 20-2.1 General (a) Airport lighting equipment and materials covered by FAA specifications shall have the prior approval of the Federal Avia- tion Administration, Airports Service, Washington, D.C.* 20590. (b) All other equipment and materials covered by other referenced specifications shall be subject to acceptance through manu- facturer's certification of compliance with the applicable specification when requested by the Engineer. 20-2.2 MSid Steel Conduit Rigid steel conduit and fittings shall be in accordance with Fed. Spec. WW-C-581. 20-2.3 Bus Connectors - Connectors shall be similar to Burndy Type NT (or for copper tubing. Connectors for insulated bus cable shall be oftheproper size and type for the service intended. 20-2.4 Square Duct Duct shall be square similar to that manufactured by the Square D Company (or equal), or the Trumbull Electric Manufacturing Company (or equal). The entire front of the duct on each section shall - 6 - consist of hinged or removable cover for ready access to the interior. The cross section of the duct shall be not less than 6x6 inches except where otherwise shown in the plans. 20-2.5 FAA -Approved Equipment Certain items of airport lighting equipment installed in vaults are covered by individual FAA equipment specifications. The specifications are listed below: AC 150/5345-3B, Specification for L-821 Airport Lighting Panel for Remote Control of Airport Lighting. AC 150/5345-7, Specification for L-824 Underground Elec- trical Cables for Airport Lighting Circuits. AC 150/5345-13,Specification for L-841 Auxiliary Relay. Cabinet Assembly for Pilot Control of Airport Lighting Circuits. 20-2.6 Other Electrical Equipment Switches, cutouts, terminal blocks, circuit breakers, and all other regularly used commercial items of electrical equipment not covered by FAA equipment specifications shall conform to the applicable rulings and standards of the Institute of Electrical and Electronic Engineers or the National Electrical Manufacturers Association. When specified, test reports from a testing laboratory indicating that the equipment meets the specifications shall be supplied. In all cases, equipment shall be new and a first -grade product.This aq ui be supplied in the quantities required for the specificpment shall project incorporate the electrical and mechanical characteristicsspecified inall the proposal and plans. The Contractor shall furnish the Engineer complete'infor mation, including shop drawings, when requested by the Engineer, of all equipment which he proposes to furnish under the item and no equip- ment shall be incorporated in the.work until such equipment has been approved by the Engineer. k 20-2.7 Wire Wire in conduit rated more than 600 volts and up to 5,000 volts shall conform to Advisory Circular 150/5345-7B, Specification for L-824 Underground Electrical Cables for Airport Lighting Circuits. For ratings up to 600 volts, thermoplastic wire conforming to Fed. Spec. J-C-30, Types TW, THW, and THWN, shall be used. The wires shall be of the type size, number of conductors, and voltage shown in the plans or in the proposal. (a) Control circuits. Wire shall be not 2 AWG and shall be insulated for 600 volts. Iless than No. 1f telephone control cable 1 specified, No. 19 AWG telephone cable conforming to the United Statesis Department of Agriculture, Rural Electrification Administration (REA) Bulletin 345-14 shall be used. ` 7 - (b) Power circuits. 1. 600 volts maximum Wire shall be No. 6 AWG or larger and insulated for at least 600 volts. 2. Over 600 volts Wire shall be No. 6 AWG or. larger and insulated for at least 5.000 volts. 20-3 INSTALLATION OF EQUIPMENT IN VAULT 20-3.1 General The equipment, equipmentontractor accessories, furnish, install and support conduit, cables 'and connect all pport necessary to insure a complete and o wires, ectricbuses. grounds, distribution center for the airportparable electrical and shown in the plans. lighting system as specified herein The equipment installation and mounting shall c the requirements of the National Electrical Code and having Jurisdiction. comply with . local code agency 20-3.2 Power Su 1 E ui ment Transformers, regulators booster Power supply equipment items shall be furnished andtransformers, ins ll location shown in the plans or and other as directed b Called he the supply equipment shall be set on steel "Hot y the Engineer. The or concrete blocks to sections Power equipment and the floor. The a minimum sp � rrin beams, channels,._ ace of 1-1/2 inches between the lin The equipment shall be so as not g plugs shall P of the oil -filled units; struct the oil-sam to ob- so €ar as possible, not be obscured. and nameplates 20-3,3 Switchgear and Panels Switches, panels, panel boards shall be furnished and installed at the location as directed by the Engineer. W � ansh d other similar items attached to the wall or ceilingall or ceiling -mounted eOwn ms shahe ll or 3/8-inch diameter engaging metal exp with galvanized bolts of not less than onry or concrete vaults. eXPrnsion shields or anchors in mas- 20-3.4 Duct and Conduit The Contractor shall furnish and install square' -type metallic ducts with hinged covers for the the vault. These shall be mounted along the walls behind type control circuits in mounted equipment and i be nt nd all floor The hinged covers shall me y below all wall -mounted equipment. hinges at the front bottom.Placed to open from the frost q ipment. } -side with the l Wall brackets for square ducts shall be installed all joints 2 feet or more apart with intermediate t Conduit shall be at r used between square ducts and equipmentor b specified. different items of equipment when the equipment is designed between - different g d for conduit - 8 - connection. When the equipment is not designed for conduit connection, conductors shall enter the square -type control duct through insulating bushings in the duct or on conduit risers. 20.3-5 Cable Entrance and High -Voltage Bus System From the disconnecting device, the insulated service conductors shall be extended to new equipment. The high -voltage bus system shall utilize the materials specified and shall be mounted and installed in accordance with the requirements of the National Electrical Code or the local code agency having jurisdiction. 20.3-6 Wiring and Connections The. Contractor shall make all.necessary electrical connections in the vault in accordance with the wiring diagrams fur- nished and as directed by the Engineer. In -wiring to the terminal blocks, the Contractor shall leave sufficient extra length on each con- trol lead to make future changes in connections at the terminal block. This shall be accomplished by running each control lead the longest way around the box to the proper terminal. Leads shall be neatly laced in place. 20.3-7 Marking and Labeling All equipment, control wires, terminal blocks, etc... shall be tagged, marked, or labeled as specified below: (a) Wire identification. The Contractor shall furnish and install self -sticking wire labels or identifying tags on all con- trol wires at the point where they connect to the control equipment or to the terminal blocks.- Wire labels, if used, shall be of the self - s ticking preprinted type and of the manufacturer's recommended size for the wire involved. Identification markings designated in the plans shall be followed. Tags, if used, shall be of fiber not less than 3/4-inch in diameter and not less than 1/32-inch thick. Identification markings designated in the plans shall be stamped on tags by means of small tool dies.. Each tag shall be securely tied to the proper wire by a nonmetallic cord. (b) Labels. The Contractor shall stencil identifying labels on the cases of regulators, breakers, and distribution and control relay cases with white oil paint as designated by the En-gineer. The letters and numerals shall be not less than 1 inch in height and shall be of proportionate width. The Contractor shall also mark the correct circuit designations in accordance with the wiring diagram on the terminal marking strips which are a part of each terminal block." (c) Painting. After all electrical equipment, gutter and conduit have been installed, the Contractor shall apply paint or touchup paint of the appropriate color to the items installed and to the adjacent surfaces which might be damaged prior to acceptance of the installation. - 9 - k (d) Wiring Diagram. The Contractor shall installea wiring diagram furnished by the Engineer showing final connections and identification markings. The diagram shall be installed in a frame in the lighting vault which is to be relocated to the south wall. 20-3.8 Scheduling'of Work The work required by this item shall be scheduled so that the work specified herein will not disrupt the use of the lighting system of runways and taxiways.: No extra compensation will be allowed for any temporary wiring or other work made necessary by these requirements. 20-4 BASIS OF PAYMENT - Payment shall be made.at the contract lump sum price for furnish- ing of all equipment specified installed in place and accepted by. the Engineer.- This price shall be full compensation for furnishing all materials and for all preparation, painting, assembly, and installation of these materials, and for all -labor, equipment and tools, and incidentals necessary to complete this item. This item shall include, but is not limited to, the rearrangement of existing equipment and furnishing and installation of following new equipment. (a) Vault. One L-841 Auxiliary Relay Cabinet Assembly for Pilot Control of Airport Lighting Circuits connected to control cable,`and. existing Control Terminal Cabinet as shown on plans. Lightning Arresters shall be mounted in cabinet or separate box if necessary for cable conductors. (b) New Control Tower. One L-821 Airport Lighting Panel, 48 Volts D.C., Flush Mounting Type F, Size 2, with seventeen (17) SPST Toggle switches; one (1) 6 position step type and one (1).stepless potentiometer Type High Intensity Brightnessi-Controls for L-828 regulators, to be placed in positions as indicated on plans. The panel is to be installed in a designated location in control console.