NOTIFICATION OF ADDENDUM ADDENDUM NO. 1 DATED 3/30/2015

Transcription

1 NOTIFICATION OF ADDENDUM ADDENDUM NO. DATED 3/30/205 Control , ETC. Project NH 205(93) Highway US 87 County GLASSCOCK, ETC. Ladies/Gentlemen: Attached please find an addendum on the above captioned project. Included in the attachment is an adendum notification which details the changes the respective proposal pages which were added / or changed. Except for new bid insert pages, it is unnecessary to return any of the pages attached. Bid insert pages must be returned with the bid proposal submitted to the Department, unless your firm is submitting a bid using a computer print out. The computer print out must be changed to reflect the new bid item information. Contractors material suppliers, etc. who have previously been furnished informational proposals are not being furnished a copy of the addendum. If you have a subcontractor on the above project, please advise them of this addendum. Acknowledgment of this addendum is not requested if your company has been issued a proposal stamped This Proposal Issued for Informational Purposes. You are required to acknowledge receipt of this addendum on the Addendum Acknowledgement form contained in your bid proposal by placing a mark in the box next to the respective addendum. Failure to Acknowledge receipt of this addendum in your bid proposal will result in your bid not being read. 04/99

2 SUBJECT: PLANS AND PROPOSAL ADDENDUMS PROJECT: NH 205(93) CONTROL: COUNTY: GLASSCOCK LETTING: 04/08/205 REFERENCE NO: 0325 PROPOSAL ADDENDUMS _ PROPOSAL COVER X BID INSERTS (SH. NO.: -4, 2-4, 3-4, 4-4 ) X GENERAL NOTES (SH. NO.: SHEET B THROUGH J ) X SPEC LIST (SH. NO.: 2-2 ) X SPECIAL PROVISIONS: ADDED: DELETED: SPECIAL PROVISION _ SPECIAL SPECIFICATIONS: ADDED: _ OTHER: DELETED: DESCRIPTION OF ABOVE CHANGES (INCLUDING PLANS SHEET CHANGES) DESCRIPTION OF ABOVE CHANGES (INCLUDING PLAN SHEET CHANGES) BID INSERT -4 REMOVED ITEM , ITEM REMOVED ITEM ADDED ITEM , ITEM ADDED ITEM , ITEM BID INSERT 2-4 ADDED ITEM BID INSERT 4-4 REMOVED ITEM BID INSERTS -4, 2-4, 3-4, 4-4; INFORMATION MAY HAVE SHIFTED DUE TO THE CHANGES ABOVE SPECIFICATION LIST: SHEET 2-2; REMOVED SPECIAL PROVISION GENERAL NOTES: SHEET B; REVISED NOTE TO ITEM 8 SHEET C; REVISED NOTE TO ITEM 344 SHEET C; ADDED ITEM 35 SHEET D; REVISED NOTE TO ITEM 502 SHEET F; REVISED NOTE TO ITEM 585 DESCRIPTION OF ABOVE CHANGES (INCLUDING PLANS SHEET CHANGES) (CONTINUED) -2

3 PLAN SHEETS: SHEET 2 - REVISED SHEET 5 - REVISED SHEET 6 - REVISED SHEET 8 - REVISED SHEET 8A - REVISED SHEET 8B - REIVSED SHEET 8C - REVISED SHEET 8D - REVISED SHEET 9 - REVISED SHEET 0 - REVISED SHEET - REVISED SHEET 2 - REVISED SHEET 3 - OMITTED SHEET 40 - REVISED SHEET J; REMOVED NOTE FOR ITEM

4 PROPOSAL SHEET PROPOSAL SHEET PROJECT NH 205(93) TxDOT COUNTY GLASSCOCK, ETC. FORM 234-B I-6-5M ALT ITEM NO ITEM-CODE DESC CODE S.P. NO. UNIT BID PRICE ONLY. WRITTEN IN WORDS UNIT APPROX QUANTITIES DEPT USE ONLY ASPH (AC-20-5TR) AGGR(TY-PB GR-4 SAC-B) GAL 25, CY SUPERPAVE MIXTURES SP-D SAC-B PG FLEXIBLE PAVEMENT STRUCTURE REPAIR(") FLEXIBLE PAVEMENT STRUCTURE REPAIR(3") TON 06, SY 4, SY 68, PLANE ASPH CONC PAV (.5") SY 2, PLANE ASPH CONC PAV (0" TO /2") SY 6, PLANE ASPH CONC PAV (2 /2") SY PLANE ASPH CONC PAV (0"- 2 /2") SY PAV JT UNDERSEAL (24") LF

5 PROPOSAL SHEET PROJECT NH 205(93) TxDOT COUNTY GLASSCOCK, ETC. FORM 234-B I-6-5M ALT ITEM NO ITEM-CODE DESC CODE S.P. NO. UNIT BID PRICE ONLY. WRITTEN IN WORDS UNIT APPROX QUANTITIES DEPT USE ONLY CLEANING AND SEALING EXISTING JOINTS LF CLEANING EXISTING JOINTS MOBILIZATION LF LS BARRICADES, SIGNS AND TRAFFIC HAN- DLING MO RUMBLE STRIPS (SHOULDER) LF 627, WK ZN PAV MRK NON-REMOV (W)4"(BRK) WK ZN PAV MRK SHT TERM (TAB)TY W WK ZN PAV MRK SHT TERM (TAB)TY Y REFL PAV MRK TY I (W)8"(SLD)(090MIL) REFL PAV MRK TY I (W)24"(SLD)(090MIL) LF 3, EA 28, EA LF 29, LF

6 PROPOSAL SHEET PROJECT NH 205(93) TxDOT COUNTY GLASSCOCK, ETC. FORM 234-B I-6-5M ALT ITEM NO ITEM-CODE DESC CODE S.P. NO. UNIT BID PRICE ONLY. WRITTEN IN WORDS UNIT APPROX QUANTITIES DEPT USE ONLY REFL PAV MRK TY I (Y)8"(SLD)(090MIL) RE PM W/RET REQ TY I (W)4"(BRK)(090MIL) RE PM W/RET REQ TY I (W)4"(SLD)(090MIL) RE PM W/RET REQ TY I (Y)4"(BRK)(090MIL) RE PM W/RET REQ TY I (Y)4"(SLD)(090MIL) PREFAB PAV MRK TY C (W) (ARROW) PREFAB PAV MRK TY C (W) (WORD) PREFAB PAV MRK TY C (W) (36")(YLD TRI) LF, LF 79, LF 320, LF LF 38, EA EA EA REFL PAV MRKR TY II-A-A REFL PAV MRKR TY II-C-R EA EA 3, SPOT DIAMOND GRINDING ASPH PVMT SY 4,

7 PROPOSAL SHEET PROJECT NH 205(93) TxDOT COUNTY GLASSCOCK, ETC. FORM 234-B I-6-5M ALT ITEM NO ITEM-CODE DESC CODE S.P. NO. UNIT BID PRICE ONLY. WRITTEN IN WORDS UNIT APPROX QUANTITIES DEPT USE ONLY ASPHALT PLUG EXP JOINT LF

8 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 Item No. BASIS OF ESTIMATE Description Usage Area Rate 344 SuperPave Mixtures NB Mainlanes NB Inside Shoulder NB Outside Shoulder SB Mainlanes SB Inside Shoulder SB Outside Shoulder Ramps Mainlanes Ramps Shoulders Estimated Quantity 49,92 SY 65 LB/SY 34,643 TON 69,077 SY 74,373 SY 0 (Avg) 2 (Avg) LB/SY 3,799 TON LB/SY 0,549 TON 49,92 SY 65 LB/SY 34,643 TON 69,077 SY 74,373 SY 0 (Avg) 2 (Avg) LB/SY 3,799 TON LB/SY 0,549 TON 4,547 SY 65 LB/SY,200 TON 8,59 SY 0 (Avg) LB/SY 473 TON Crossovers 8,666 SY 65 LB/SY 6,737 TON GENERAL NOTES The following Stard Sheets have been modified: NONE Locate the project bulletin board at an approved location within the project limits such as at a field office, staging area, or stockpile, make accessible to the public at all times. Do not remove the bulletin board from the project until approved. If a construction site notice is required for the project, post a copy at each geographically separated work location. In those instances where fixed features require, vary the governing slopes indicated in these plans from within the limits to the extent determined. If Contractor elects to establish a pit within 200 ft. of a public road, construct a barrier or other device in accordance with Natural Resources Code, Chapter 33, Section General Notes Sheet A

9 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 Do not use salt water with solids in excess of 0,000 parts per million, as determined by evaporation. Item 2, Instructions to Bidders For questions call: Thomas R. Johnston, P.E. San Angelo Area Engineer 2802 Armstrong San Angelo, Texas (325) Tom.Johnston@txdot.gov Item 5, Control of the Work Responsibility for construction surveying shall conform to Section , Method C. Item 7, Legal Relations Responsibilities All motor vehicle equipment having an obstructed view to the rear shall have a reverse signal alarm audible above the surrounding noise level. Item 8, Prosecution Progress Submit the sequence of work estimated progress schedule on paper or as a Portable Document Format (PDF) electronic file compatible with Adobe Systems Incorporated Acrobat Reader X. Upon completion of pavement repair operations, the Engineer may suspend work working day charges under the following circumstances: Until completion of crushing operations. From November, 205 to March 3, 206. Item 9, Measurement Payment Provide a conversion rate for units of payment for work subcontracted to disadvantaged business enterprises if units of payments differ from those shown on the plans. The progress payment period shall end two working days before the last working day of the month. Deliver invoices to be paid as material on h on or before the end of the progress payment period. General Notes Sheet B

10 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 Item 302, Aggregates for Surface Treatments Stockpile aggregates separately label stockpiles with project number, material type, grade. The target value for the desired percent by weight of residual bitumen coating for virgin limestone aggregate is.2%. If using aggregate other than virgin limestone, notify the Engineer prior to pre-coating. The Engineer will determine the target value for the percent residual bitumen coating for non-limestone aggregate. Item 320, Equipment for Asphalt Concrete Pavement Provide production equipment that ensures a uniform continuous production rate of at least 50 tons per hour. A Type D Structure is required. Item 344, Superpave Mixtures Longitudinal drop-offs will not be allowed when work is suspended outside of the paving season. Liquid antistripping agents are not allowed. Do not dump reload hot mix asphalt. Should the paving operation stop three times in one day due to equipment malfunction or mixture flow interruption, the Engineer may require the Contractor to immediately suspend operations until the next working day. Hauling equipment is subject to weight verification. If a limestone material source is used, add a minimum of % lime conforming to the requirements of Item 30, Asphalt Antistripping Agents. Testing in accordance with method Tex-530-C is waived. Design a mixture with a gradation that has stone-on-stone contact passes below the reference zone shown in Table 9. Verify stone-on-stone contact using the method given in the Superpave design procedure in Tex-204-F, Part IV. Unless otherwise directed by the Engineer, a tack coat is required. Item 35, Flexible Pavement Structure Repair, Item 354, Planing Texturing Pavement Remove dispose of existing raised pavement markers, jiggle bars, traffic buttons before beginning work. General Notes Sheet C

11 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 Mark saw cut straight lines at the boundaries of work areas. Do not saw cut pavement until the lines are approved. Take measures to prevent reclaimed asphalt pavement (RAP) from entering storm drain grates, inlets waterways. The Department will retain ownership of all removed asphalt concrete pavement. Stockpile reclaimed asphalt pavement at the intersection of SH 58 US 87. Maintain approved sediment control measures around the stockpile of reclaimed asphalt pavement (RAP) material at all times. This shall not be paid for directly but shall be considered as included in payment for this item. Item 502, Barricades, Signs Traffic Hling The contractor force account Safety Contingency that has been established for this project is for work zone enhancements that were unforeseen in the project planning design stage, but would improve the effectiveness of the traffic control plan. These enhancements will be mutually agreed upon by the Engineer the Contractor s Responsible Person based on weekly or more frequent traffic management reviews on the project. The Engineer may choose to use existing bid items if doing so does not slow implementation of work zone enhancements. Furnish regulatory speed limit signs. The Engineer will determine placement locations will provide supervision to the Contractor in placing, removing replacing these signs. The construction speed zones are as follows: Highway Begin Reference Marker End Reference Marker Existing Speed Limit (mph) Work Zone Speed Limit (mph) US Shadow vehicles shown on the plans are required. Lead vehicles shown on the plans are required. Trail vehicles shown on the plans are required. Use high level warning flags on advance warning signs during daytime operations. General Notes Sheet D

12 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 Provide flaggers at such times locations as directed to ensure the safe passage of traffic through construction areas. When flaggers are used to control traffic, furnish install signs CW20-7 FLAGGER SYMBOL, CW20-7aD "FLAGGER AHEAD", CW3-4 BE PREPARED TO STOP. Flaggers shall use 24 in. STOP/SLOW paddles. Remove Type III barricades plastic drums upon depletion of a stockpile. At Contractor s option, place these items near the fence line. Warning reflectors mounted on plastic drums may be substituted in place of Type C steady burn warning lights. Prior to each work day, make provisions to exclude vehicles from parking within work areas. Omit advance warning signs furnish install reduced size signs CW20- ROAD WORK AHEAD mounted back to back with reduced size signs G20-2 END ROAD WORK signs at low volume crossroads, which are: Allen Rd., Flowers Rd., Overton Rd., McDonald Rd., County Road 4-P, Parramore Lane, County Road 20-P, Kinnebrew L, County Road 403-P, Hunt Rd. 4 th Street. Furnish install signs CW20-D ROAD WORK AHEAD, G20-aT ROAD WORK NEXT X MILES, NEXT X MILES, G20-2 END ROAD WORK at high volume crossroads, which are: FM 82, SH 63, SH 58 Use a shadow vehicle with a truck-mounted attenuator in advance of work areas when installing short line specialty markings (yield triangles, stop bars, arrows, words, numbers, diagonals on isls). Place cones around the perimeter of the work area, from the shadow vehicle to the end of work area. Provide duplicate warning signs on the median side of divided roadways. In addition to providing a Contractor s Responsible Person a phone number for emergency contact, have employee(s) available to respond on the project for emergencies for taking corrective measures within 30 minutes. Cones may be used as the typical channelizing device. Item 504, Field Office Laboratory Furnish one Type D structure. Asphalt content will be determined by the ignition method. A nuclear gauge will be used for moisture /or density determination. Item 506, Temporary Erosion, Sedimentation, Environmental Controls General Notes Sheet E

13 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 The project is exempt from the Texas Pollutant Discharge Elimination System (TPDES) General Permit (TXR5000). Exempt projects are those that disturb less than one acre or routine maintenance activities that maintain the original line grade, hydraulic capacity, or original purposes of the site. No temporary erosion control measures or Storm Water Pollution Prevention Plan (SW3P) have been included in the plans. Item 533, Shoulder Texturing Perform shoulder texturing prior to placement of final edge line pavement markings. Item 585, Ride Quality for Pavement Surfaces Schedule 3 from Table will be used to determine the level of bonus for each 0.-mi. section on the project. Existing International Roughness Index (IRI) data is as follows: Highway Begin Reference Marker End Reference Marker IRI US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R General Notes Sheet F

14 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 US87 R US87 R US87 R US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L Glasscock/Sterling County Line US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R General Notes Sheet G

15 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 R US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L General Notes Sheet H

16 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L US87 L Item 662, Work Zone Pavement Markings Do not use temporary flexible-reflective roadway marker tabs to delineate stop bars, crosswalks, symbols, or words. Use the temporary flexible-reflective roadway marker tab configuration shown on Stard Sheet TCP(7-) for conventional roadways use the configuration shown on WZ(STPM) for divided highways. Item 666, Reflectorized Pavement Markings Place glass beads for pavement markings in accordance with the following table: General Notes Sheet I

17 Project Number: NH 205(93) Sheet 8 County: GLASSCOCK Control: Highway: US 87 Marking Types TY I markings TY II markings Glass Bead (Double Drop) Types Surface Treatment Glass Bead Rates Asphalt Concrete Pavement, Microsurfacing, Concrete Pavement Type II 2 LB per 00 SF 6 LB per 00 SF Type III 2 LB per 00 SF 6 LB per 00 SF Type II 2 LB per GAL 6 LB per GAL Type III 2 LB per GAL 6 LB per GAL Apply TY II marking material at a rate of 25 gallons per mile. The striper speed shall not exceed 5 MPH during application. Convert to gravity-flow beaders (if not in use) to obtain optimum bead application, when directed. Clean striper tanks before use if there is a build-up of dry paint, as directed. Flush lines guns before use. Reference existing markings before performing work that disturbs the markings, so that the markings can be re-established. Provide a double-drop of Type II Type III glass beads. The use of portable retroreflectometer is allowed. Item 3004, Diamond Grinding Grooving Pavement Perform full-width diamond grinding for payment at the beginning ending points of paving, where abutting concrete bridge decks or approach slabs, where abutting ends of concrete pavement, other locations as directed. Typical diamond grinding length shall be 00 ft. This work will not be required at those locations where Engineer determines that ride quality is acceptable. Upon completion of the diamond grinding, apply two coats of asphalt sealer that meets the following specifications: Federal Specification RP-335e ASTM Specifications D D General Notes Sheet J

18 CONTROL : , ETC PROJECT : NH 205(93) HIGHWAY : US 87 COUNTY : GLASSCOCK, ETC TEXAS DEPARTMENT OF TRANSPORTATION GOVERNING SPECIFICATIONS AND SPECIAL PROVISIONS ALL SPECIFICATIONS AND SPECIAL PROVISIONS APPLICABLE TO THIS PROJECT ARE IDENTIFIED AS FOLLOWS: STANDARD SPECIFICATIONS: ADOPTED BY THE TEXAS DEPARTMENT OF TRANSPORTATION NOVEMBER, 204. STANDARD SPECIFICATIONS ARE INCORPORATED INTO THE CONTRACT BY REFERENCE. ITEMS TO 9 INCL., GENERAL REQUIREMENTS AND COVENANTS ITEM 36 SEAL COAT (20)(300)(302) ITEM 344 SUPERPAVE MIXTURES (300)(30)(320)(520)(585) ITEM 35 FLEXIBLE PAVEMENT STRUCTURE REPAIR (32)(204)(247)(260) (263)(275)(276)(292)(30)(36)(330)(334)(340) ITEM 354 PLANING AND TEXTURING PAVEMENT ITEM 356 FABRIC UNDERSEAL (300)(36)(520) ITEM 438 CLEANING AND SEALING JOINTS ITEM 500 MOBILIZATION (506) ITEM 502 BARRICADES, SIGNS, AND TRAFFIC HANDLING (504) ITEM 506 TEMPORARY EROSION, SEDIMENTATION, AND ENVIRONMENTAL CONTROLS ITEM 533 MILLED RUMBLE STRIPS ITEM 662 WORK ZONE PAVEMENT MARKINGS (666)(668)(672)(677) ITEM 666 RETROREFLECTORIZED PAVEMENT MARKINGS (36)(38)(502)(662) (677)(678) ITEM 668 PREFABRICATED PAVEMENT MARKINGS (678) ITEM 672 RAISED PAVEMENT MARKERS (677)(678) SPECIAL PROVISIONS: SPECIAL PROVISIONS WILL GOVERN AND TAKE PRECEDENCE OVER THE SPECIFICATIONS ENUMERATED HEREON WHEREVER IN CONFLICT THEREWITH. REQUIRED CONTRACT PROVISIONS, FEDERAL-AID CONSTRUCTION CONTRACTS (FORM FHWA 273, MAY, 202) WAGE RATES SPECIAL PROVISION "SCHEDULE OF LIQUIDATED DAMAGES" ( ) SPECIAL PROVISION "NONDISCRIMINATION" ( ) -2

19 SPECIAL PROVISION "CERTIFICATION OF NONDISCRIMINATION IN EMPLOYMENT" ( ) SPECIAL PROVISION "NOTICE OF REQUIREMENT FOR AFFIRMATIVE ACTION TO ENSURE EQUAL EMPLOYMENT OPPORTUNITY" ( ) SPECIAL PROVISION "STANDARD FEDERAL EQUAL EMPLOYMENT OPPORTUNITY CONSTRUCTION CONTRACT SPECIFICATIONS" ( ) SPECIAL PROVISION "ON-THE-JOB TRAINING PROGRAM" ( ) SPECIAL PROVISION "DISADVANTAGED BUSINESS ENTERPRISE IN FEDERAL AID CONTRACTS" ( ) SPECIAL PROVISION "IMPORTANT NOTICE TO CONTRACTORS" ( ) SPECIAL PROVISION TO ITEM 6 ( ) SPECIAL PROVISION TO ITEM 7 ( ) SPECIAL PROVISION TO ITEM 506 ( ) SPECIAL SPECIFICATIONS: ITEM 3004 DIAMOND GRINDING AND GROOVING PAVEMENT (585)(720) ITEM 400 ASPHALTIC PLUG EXPANSION JOINT SYSTEM ITEM 600 PORTABLE CHANGEABLE MESSAGE SIGN GENERAL: THE ABOVE-LISTED SPECIFICATION ITEMS ARE THOSE UNDER WHICH PAYMENT IS TO BE MADE. THESE, TOGETHER WITH SUCH OTHER PERTINENT ITEMS, IF ANY, AS MAY BE REFERRED TO IN THE ABOVE- LISTED SPECIFICATION ITEMS, AND INCLUDING THE SPECIAL PROVISIONS LISTED ABOVE, CONSTITUTE THE COMPLETE SPECIFI- CATIONS FOR THIS PROJECT. 2-2

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