Project No. 15-015K September 20, 2016 TO ALL POTENTIAL BIDDERS Subject: Addendum No. 2 for Drainage Improvements For Nueces River Fishing Area Ladies/Gentlemen: This addendum is considered part of the Contract Documents and is issued to change, amplify, add to, delete from, or otherwise explain the Contract Documents. Where provisions of this addendum differ from those of the original Contract Documents, this addendum will take precedence and govern. Bidders are hereby notified that they must incorporate this addendum into their bids, and it will be construed that the contractor s bid reflects with full knowledge all items, changes, and modifications to the Contract Documents herein specified. Bidders will acknowledge receipt of this addendum in the space provided on the Bid form. BID DOCUMENTS 1. Reissued Revised BID BREAKDOWN sheets (pages 1 3). TECHNICAL SPECIFICATIONS Table of Contents 1. Remove and replace with Revised TABLE OF CONTENTS sheet. Division 01 1. Remove Section 01 57 13 TEMPORARY EROSION AND SEDIMENT CONTROL dated 9/2/2016, pages 1 9. Division 32 1. Remove Section 32 91 00 SEEDING dated 9/2/2016, pages 1 6. 2. Insert Section 32 91 00 TOPSOIL AND SEEDING dated 08/15, pages 1 4. 09/15
To All Potential Bidders Project No. 15-015K Page 2 Addendum No. 2 September 20, 2016 DRAWINGS 1. Reissued DWG 15-015K-05 2. Reissued DWG 15-015K-07 Sincerely, LD/clh Enclosures Louis Donato, E.I.T. Associate Project Engineer cc: Sean Strawbridge David L. Krams Sarah Garza David L. Michaelsen Sonya Lopez-Sosa 09/15
(Company Name) BID BREAKDOWN SHEET DRAINAGE IMPROVEMENTS FOR NUECES RIVER FISHING AREA PORT OF CORPUS CHRISTI AUTHORITY BREAKDOWN OF BID PRICES This breakdown is a part of the Contract Documents and is designed to help the PCCA evaluate the bids to detect possible errors or omissions and to establish values for the individual items of work so that modifications to the contract can be more easily resolved. Please fill out the items listed below so that the total matches the prices shown on the bid. The bidder is invited to include his own estimates if he so chooses. BASE BID Design Bidder s Unit Total Quantity Quantity Amount Amount 1. Mobilization/ Demobilization 1 LS $ $ 2. Bonds & Insurance 1 LS $ $ 3. Construct Drainage Channel 502 CY $ $ 4. Fill Depression 145 CY $ $ 5. Culvert Pipe (24 RCP) 24 LF $ $ 6. Precast Concrete Headwall 1 EA $ $ 7. Precast Concrete Safety End Treatment (SET) 1 EA $ $ 8. Culvert Rip Rap Protection 8 CY $ $ 9. Geogrid- River Access Road 3,566 SY $ $ 10. Roadbase- River Access Road 304 CY $ $ 11. Roadbase- Service Road 371 CY $ $ 12. Topsoil & Reseeding 1 ACRE $ $ 13. SW3P Items 1 LS $ $ 14. Miscellaneous 1 LS $ $ 15. Roadbase-maintenance 35 CY $ $ Total Amount Base Bid $ Revised Bid Breakdown Sheet 05/14 1/3
BID BREAKDOWN SHEET (Continued) ADDITIVE BID ITEM 1: DOUBLE BARRELED RCP CULVERT (List additional costs additive to the Base Bid.) 1. Culvert Pipe (24 RCP) 24 LF $ $ 2. Precast Concrete Headwall 1 EA $ $ 3. Precast Concrete Safety End Treatment (SET) 1 EA $ $ 4. Culvert Rip Rap Protection 1 CY $ $ Miscellaneous 1 LS Total Amount Additive Bid Item 1 $ The preceding design quantities are approximate and are not guaranteed. Bidders will prepare their own estimate of work and bid accordingly. Bidders will indicate their own estimate of work under the column labeled Bidder s Quantity and calculate the Total Amount based on same. If this column is left blank, the bidder will be deemed to be in agreement with the design quantities and no adjustment in contract price will be made for variance. LIST OF SUBCONTRACTORS & SUPPLIERS Please list all intended subcontractors and major suppliers below. The bidder awarded the contract will be required to notify the Engineer of any changes in the actual suppliers and subcontractors. Material Item Name of Supplier Revised Bid Breakdown Sheet 05/14 2/3
BID BREAKDOWN SHEET (Continued) Subcontractors (if any): Revised Bid Breakdown Sheet 05/14 3/3
Revised TABLE OF CONTENTS TECHNICAL SPECIFICATIONS DRAINAGE IMPROVEMENTS FOR NUECES RIVER FISHING AREA PORT OF CORPUS CHRISTI AUTHORITY DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS 00 73 10 PCCA POLICIES & PROCEDURES DIVISION 01 - GENERAL REQUIREMENTS 01 14 13 ACCESS TO PORT AUTHORITY PROPERTY 01 31 13 PROJECT COORDINATION 01 31 19 PROJECT MEETINGS 01 33 00 SUBMITTALS 01 35 21 POLLUTION PREVENTION 01 40 00 QUALITY REQUIREMENTS 01 42 16 DEFINITIONS AND STANDARDS 01 50 00 TEMPORARY FACILITIES AND CONTROLS 01 57 13 TEMPORARY EROSION AND SEDIMENT CONTROL 01 57 19 TEMPORARY ENVIRONMENTAL CONTROLS 01 57 23.11 TEMPORARY STORM WATER (POLLUTION CONTROLS CONSTRUCTION SITE 1-5 ACRES) 01 70 00 EXECUTION AND CLOSEOUT REQUIREMENTS DIVISION 31 - EARTHWORK 31 10 00 SITE CLEARING 31 22 00 GRADING 31 23 16 EXCAVATION 31 23 23 FILL 31 37 00 RIPRAP DIVISION 32 - EXTERIOR IMPROVEMENTS 32 05 19.20 GEOGRID & GEOTEXTILES 32 11 23 AGGREGATE BASE COURSES 32 91 00 TOPSOIL AND SEEDING DIVISION 33 - UTILITIES 33 42 13 PIPE CULVERTS
SECTION 32 91 00 TOPSOIL AND SEEDING PART 1 GENERAL 1.01 SECTION INCLUDES This specification shall govern all work necessary for placing topsoil, fertilizing, planting seeds, laying sod, placing mattings or blankets, and maintaining vegetation in the areas designated on the plans. PART 2 PRODUCTS 2.01 MATERIALS A. Topsoil Provide easily cultivated, fertile topsoil that is free from objectionable material, has a high resistance to erosion, and is able to support plant growth. Topsoil is subject to testing by engineer. B. Seeding Provide seed from the previous season s crop meeting the requirements of Texas Seed Law, including the testing and labeling for pure live seed (PLS). Furnish seed of the designated species and use within 12 months from the date of analysis. When Buffalo grass is specified, use seed that is treated with potassium nitrate (KNO3) to overcome dormancy. Use the below tables to determine appropriate seed mix and rates as specified on the plans. Table 1: Permanent Rural Seed Mix (January 1 st May 1 st ) Clay Soils Sandy Soils Species and Rates (lbs PLS/acre) Species and Rates (lbs PLS/acre) Green Sprangletop 0.3 Green Sprangletop 0.3 Sideoats Grama (Haskell) 2.7 Bermudagrass 1.8 Bremudagrass 1.8 Buffelgrass (Common) 0.4 Buffalograss (Texoka) 1.6 Sand Lovegrass 0.6 Plains Bristlegrass 1.2 Lehmanns Lovegrass 0.6 Illinois Bundleflower 1.0 Purple Prairieclover 0.5 Table 2: Temporary Cool Season Seeding (September 1 st November 30 th ) Seed Mix and Rates (lb/acre) Oats 72 08/15 32 91 00-1/4
Table 3: Temporary Warm Season Seeding (May 1 st August 31 st ) Seed Mix and Rates (lb/acre) Foxtail Millet 34 C. Sod Sod shall be appropriate for the soil it will be placed atop and shall be from a vendor in south Texas. D. Mattings and Blankets Mattings and blankets refer to sheets of erosion-control materials (straw, jute, wood fiber, coconut fiber, plastic netting, or other materials approved by the engineer) placed on the surface of disturbed soil. They are commonly used to stabilize slopes or used as flexible channel liners, where they protect the soils until vegetation becomes established. Contractor shall suggest mattings and blankets for use at the site and seek approval, prior to purchase, from PCCA Director of Environmental Planning & Compliance. E. Compost Furnish compost that has been produced by aerobic (biological) decomposition of organic matter and meets the requirements of U.S. Department of Agriculture Test Methods for the Examination of Composting and Compost. Do not use materials that have been treated with chemical preservatives as a compost feedstock or as wood chips. The compost shall be stockpiled onsite and maintained until approved by the engineer. Engineer reserves the right to sample compost at the jobsite. F. Fertilizer All fertilizer shall be delivered in bags or clearly marked containers showing the analysis, name, trademark, and warranty. The fertilizer is subject to testing by the State chemist in accordance with the Texas fertilizer law. Fertilizer shall have an analysis of 12-12-12 (% nitrogen, phosphoric acid, and potash) as determined by the Association of Official Agricultural Chemists. At least 50% of the nitrogen component must be of a slow-release formulation. Fertilizer shall be free flowing and uniform in composition. PART 3 EXECUTION 3.01 INSTALLATION OF TOPSOIL Before placing topsoil, cultivate the area to a depth of 4 inches. Spread the topsoil to a uniform loose cover of 2 to 4 inches or at the thickness specified and shape the topsoil as directed. Water and roll the topsoil with a light roller or other suitable equipment. 08/15 32 91 00-2/4
3.02 INSTALLATION OF SEEDING Cultivate the area to a depth of 4-inches before placing the seed unless otherwise directed by the engineer. When performing permanent seeding after an established temporary seeding, cultivate the seedbed to a depth of 4-inches or mow the area before placement of the permanent seed. Distribute the seed or seed mixture uniformly over the areas shown on the plans using hand or mechanical distribution or hydro-seeding on top of the soil. When seed and water are to be distributed as a slurry during hydro-seeding, apply mixture to the area to be seeded within 30 minutes of placement of components in the equipment. Roll the planted area with a light roller or other suitable equipment. Seeds may also be drill seeded at a depth of 0.25 to 0.33 inches. If seeding is to be applied on slopes greater than 3:1, then matting and/or other stabilization methods shall be used. 3.03 INSTALLATION OF SOD Sod is composed of living vegetation and is placed on disturbed soil that requires an immediate and permanent vegetative cover. Grading activities are to be completed prior to sod installation. Soils of poor quality may require fertilization or the application of compost or topsoil prior to sod installation. Sod shall have at least a one inch root system and be free of noxious weeds, other grasses, or any matter deleterious to the growth of the sod. Only sod that has been harvested, delivered, and installed within a period no greater than 36 hours shall be used. Cultivate the area to a depth of 4-inches before laying sod, unless otherwise directed by the engineer. The sod is to be installed in a staggered pattern with the long side perpendicular to the slope. If a single row or spot sodding is to occur, the sod is to be planted where the top of the sod s soil is level with the surrounding ground. All exposed sides of the sod shall be firmed with soil without covering the sod with soil. Sod is to be rolled immediately to achieve firm contact with the soil. For slopes greater than 3:1, the sod shall be anchored to the ground. 3.04 INSTALLATION OF MATTINGS AND BLANKETS Complete grading of the soils, fertilize as needed, and seed area prior to installation of mattings or blankets. Install and anchor the mattings and blankets, previously approved for use by the PCCA Environmental Compliance Manager, in accordance with the manufacturer s specifications. 3.05 INSTALLATION OF COMPOST Compost is appropriate on slopes of 3:1 or less. After excavation and embankment work is complete, remove and dispose of objectionable material from the topsoil before placing compost. Apply compost uniformly 2 to 4 inches deep. Compost may be blended with topsoil. Water and roll the compost with a light roller or other suitable equipment. 08/15 32 91 00-3/4
3.06 APPLICATION OF FERTILIZER Deliver and apply the fertilizer uniformly at a rate equal to 100 pounds of nitrogen per acre or at the analysis and rate specified on the plans. 3.07 APPLICATION OF WATERING Use water that is clean and free of industrial wastes and other substances harmful to the growth of vegetation. Apply water with equipment appropriate to distribute water at a uniform and controllable rate. Ensure that watering does not erode soil or plantings. For seeded areas, grass seed make take 5-30 days to germinate depending on the seed type and temperature. Seeded areas should be watered daily at a frequency to ensure stabilization of mature vegetation to 70% of the background vegetation. The sodded areas are to be watered daily to where one inch of the soil below the sod has be permeated. Watering shall continue until the roots of the sod are affixed into the soil and as dry conditions require. PART 4 MEASUREMENT & PAYMENT (Not Used) END OF SECTION 08/15 32 91 00-4/4