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Home My WebLink AboutBID - 7557 WEST PROSPECT ROAD BRIDGE REPLACEMENT AT NEW MERCER DITCHADDENDUM NO. 1 SPECIFICATIONS AND CONTRACT DOCUMENTS Description of BID 7557: West Prospect Road Bridge Replacement at New Mercer Ditch OPENING DATE: 3:00 PM (Our Clock) October 9, 2013 To all prospective bidders under the specifications and contract documents described above, the following changes/additions are hereby made and detailed in the following sections of this addendum: Exhibit 1 – Revised Bid Schedule Exhibit 2 – Revisions & Clarifications Exhibit 3 – Soils Report Exhibit 4 – Waterline Details Please contact John Stephen, CPPO, LEED AP, Senior Buyer at (970) 221-6777 with any questions regarding this addendum. RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN STATEMENT ENCLOSED WITH THE BID/QUOTE STATING THAT THIS ADDENDUM HAS BEEN RECEIVED. Financial Services Purchasing Division 215 N. Mason St. 2nd Floor PO Box 580 Fort Collins, CO 80522 970.221.6775 970.221.6707 fcgov.com/purchasing Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 1 of 36 EXHIBIT 1 – REVISED BID SCHEDULE (The revised bid schedule has also been uploaded as a separate Microsoft Excel Document) CONTRACT ITEM QUANTITY UNIT UNIT COST ITEM COST 201 -00000 Clearing and Grubbing 1 LS $ - 202 -00010 Removal of Tree 6 EA $ - 202 A Removal of 12" Waterline 70 LF $ - 202 B Removal of 24" Casing Pipe 50 LF $ - 202 -00019 Removal of Inlet 1 EA $ - 202 -00155 Removal of Wall (Timber Tie Wall) 72 LF $ - 202 -00200 Removal of Sidewalk 308 SY $ - 202 -00203 Removal of Curb & Gutter 209 LF $ - 202 -00206 Removal of Concrete Curb Ramp 32 SY $ - 202 -00210 Removal of Concrete Pavement 733 SY $ - 202 -00220 Removal of Asphalt Mat 147 SY $ - 202 -00250 Removal of Pavement Marking 1 LS $ - 202 -00400 Removal of Bridge 1 EA $ - 202 -01000 Removal of Fence 47 LF $ - 203 -00100 Muck Excavation 323 CY $ - 206 -00000 Structure Excavation 740 CY $ - 206 -00065 Structure Backfill (Flowfill) 65 CY $ - 206 -00100 Structure Backfill (Class 1) 98 CY $ - 206 -01781 Shoring 2 LS $ - 208 -00000 Erosion Control Supervisor 1 LS $ - 208 -00005 Erosion Log 120 LF $ - 208 -00022 Orange Safety Fence 76 LF $ - 208 -00034 Gravel Bag 60 LF $ - 208 -00045 Concrete Washout Structure 1 EA $ - 208 -00050 Storm Drain Inlet Protection 1 EA $ - 208 -00070 Vehicle Tracking Pad 1 EA $ - 208 -00103 Removal and Disposal of Sediment (Labor) 40 HOUR $ - 208 -00106 Sweeping (Sediment Removal) 5 HOUR $ - 208 -00107 Removal of Trash 5 HOUR $ - 210 -01000 Reset Fence (Chain Link) 30 LF $ - 210 -01100 Reset Fence (Wood Privacy) (Match Existing) 60 LF $ - CONTRACT ITEM NO. Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 2 of 36 211 -03005 Dewatering 1 LS $ - 212 -00005 Seeding (Native) 0.5 ACRE $ - 212 -00032 Soil Conditioning 0.5 ACRE $ - 212 -00100 Tree Retention and Protection 1 LS $ - 213 -00002 Mulching (Weed-free Hay) 0.5 ACRE $ - 216 -00041 Soil Retention Blanket (Straw/Coconut) 178 SY $ - 304 -06000 Aggregate Base Course (Class 6) 183 TON $ - 304 A 1 1/2" Washed Rock for Muck Excavation Backfill 75 TON $ - 412 -00800 Concrete Pavement (8 inch) 733 SY $ - 506 -00000 Riprap (12 Inch) 52 CY $ - 509 -70000 Stainless Steel Angle (Special) 68 LF $ - 514 -00201 Pedestrian Railing Steel (Special) 65 LF $ - 514 -01051 Double Swing Gate (Special) 15 LF $ - 601 -03030 Concrete Class D (Box) 327 CY $ - 601 -03050 Concrete Class D (Wall) 82 CY $ - 601 -40008 Sandstone Veneer (Complete in Place) (Per Detail) 1 LS $ - 601 -40009 Sandstone Cap 71 LF $ - 601 -40400 Structural Concrete Stain 53 SY $ - 602 -00020 Reinforcing Steel (Epoxy Coated) 84,479 LB $ - 603 -01150 15 Inch Reinforced Concrete Pipe 5 LF $ - 604 -19305 Inlet Type R (15 Foot) 1 EA $ - 604 -50200 Manhole Ring and Cover 1 EA $ - 608 -00006 Concrete Sidewalk (6 inch) 183 SY $ - 608 -00010 Concrete Curb Ramp 59 SY $ - 608 -00310 Chemical Staining (Special) 102 SY $ - 608 -00311 Concrete Stamping (Special) 102 SY $ - 609 -22901 Curb, Gutter, and Bike Lane (Special) 105 LF $ - 609 -00045 Concrete Drive Entrance (Type 1) 47 SY $ - 613 -00400 4 Inch Electrical Conduit 400 LF $ - 613 -00600 6 Inch Electrical Conduit 200 LF $ - 619 A 12" Ductile Iron Pipe 70 LF $ - 619 B 12" DIP 45* Bends (W/ megalugs & thrust blocks) 4 EA $ - 619 C Waterline Casing Pipe (per detail) 46 LF $ - Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 3 of 36 619 D 12" Gate Valve w/ solid sleeve 1 EA $ - 619 E 60 LF of pipe restraints 2 EA $ - 620 -00020 Sanitary Facility 1 EA $ - 626 -00005 Mobilization 1 LS $ - 630 -00000 Flagging 160 HOUR $ - 630 -00007 Traffic Control Inspection 47 DAY $ - 630 -00012 Traffic Control Management 117 DAY $ - 630 -70000 Construction Zone Traffic Control Devices 1 LS $ - 630 -80359 Portable Message Sign Panel 5 DAY $ - FA GROUND WATER TREATMENT FORCE ACCOUNT 1 LS $ 5,000.00 $ 5,000.00 TOTAL BASE BID IN WORDS: Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 4 of 36 EXHIBIT 2 – REVISIONS & CLARIFICATIONS Revisions to the Plans/Bid Tab: 1. Item 627-00011 Pavement Marking Paint (Waterbourne) 5 Gallons is removed from the contract. 2. Item 210-01000 Reset Fence is revised on the bid tab to:  210-01000 Remove and Reset Fence (Chan Link) 30 LF  210-01100 Remove and Reset Fence (Wood Privacy) (Match Existing) 60 LF 3. On the project plans, the callout on sheet 7 for the gate at STA 10+21.70 should be “Double Swing Gate (Special)”. 4. The following line item is added to the revised bid tab for backfill material in Muck Excavation locations:  304-A 1 ½” Washed Rock for Muck Excavation Backfill 75 TON 5. The line Item 610-40008 Sandstone Veneer is quantity is revised TO;  601-40008 Sandstone Veneer (Complete in Place) (Per detail) 1 LS 6. The following line Items are added or modified on the revised bid tab for the 12” waterline lowering:  202-A Removal of 12” Waterline 70 LF  202-B Removal of 24” Casing Pipe 50 LF  202-00210 Removal of Concrete Pavement 733 SY  412-00800 Concrete Pavement (8”) 733 SY  619-A 12 Inch Ductile Iron Pipe 70 LF  619-B 12” DIP 45 degree bends (W/megalugs & thrust blocks) 4 EA  619-C Waterline Casing Pipe (per detail) 46 LF  619-D 12” Isolation Valve 1 EA  619-E 60 LF Pipe Restraint 2 EA 7. The Soil Report is added to the Specifications. Note that the soil report is for 2 structures. Only the portions of the soil report for the “Prospect Bridge” are applicable to this project. 8. The Traffic Control line Items are modified as follows:  630-00007 Traffic Control Inspection 47 Days  630-00012 Traffic Control Management 117 Days Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 5 of 36 Pre-Bid clarifications and answers to received questions: 1. Is a Colorado Dept. of Public Health and Environmental Services SWMP Permit required? A CDPHES SWMP Permit is not required. The total disturbed area is under 1 acre. The City will require that the erosion control plan that is supplied in with the plans be implemented and Best Management Practices (BMPs) will need to be maintained throughout construction and during the revegetation period. 2. Can the City add a Force Account Item to manage additional dewatering costs associated with the testing and discovery of polluted groundwater in order to minimize risks and costs associated with the Dewatering line item? A $5000 Force Account line item is added to the contract and the contract language for “Basis of Payment” in the project special for dewatering is revised to: Permitting, removal, sample collection, analytical testing, containerization, transportation, and disposal of all groundwater will not be paid for separately but shall be included in the work. The Ground Water Force Account line item will be used to pay for any required treatment of contaminated groundwater that is discovered during the groundwater analysis. Payment will be made under: Pay Item Pay Unit Dewatering Lump Sum Ground Water Force Account Lump Sum ($5,000.00) 3. The Traffic Control Specification is revised to read: Subsection 630.14 is hereby deleted and replaced with the following: Construction Traffic Control will not be measured separately but will be paid for on a lump sum basis. This lump sum basis shall include all traffic control devices that are shown on the plans (including temp. Jersey Barriers) or any other devices that may be requested by the engineer to ensure the safety of the project. Flagging will not be measured and paid for separately but shall be included in the cost of the work. Traffic control management (TCM) and Traffic Control Inspection (TCI) services will be measured and paid for separately up to the specified contract length (total combined quantity for TCI and TCM will be 164 Calendar Days plus any approved contract extension time). Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 6 of 36 4. Flashing Beacons and “Contractor XYZ Thanks You” signs will not be required on this project. 5. A City of Fort Collins 12” waterline will need to be lowered and modified during this project. The location of this work is shown on the plans as “24 inch PVC Schedule 80 10’ pass edge of structure on both sides” on plan sheet 8. The work will include installing a 12” gate valve with solid sleeve to isolate the waterline. Followed by removal of 70 LF of existing waterline and casing pipe. And lastly, reinstall 70 LF of 12” Ductile Iron Pipe with a casing pipe that extends 10’ on each side of the new box culvert and installing 4 - 45 degree bends for the lowering, and installing 60 LF of pipe restraints on either side of the 45* bends. See attached City of Fort Collins waterline details for more information. Concrete pavement removal and concrete replacement will be required to access the waterline to install the isolation valve and possibly for the restraints. Concrete Removal and Concrete Pavement (8”) will be measured and paid for separately in their individual line items. Excavation and backfill to get to the waterline at the isolation valve and at the structure is considered incidental to the work. Remove 12” waterline pipe, Remove 24” casing pipe, 12” Gate Valve, 12” DIP Waterline, and Waterline Casing pipe are added to the contract. 40 SY of concrete pavement removal and 40 SY of concrete pavement are added to the contract quantities. 6. What is the specification for Dryland Seeding and Mulching? The dryland seed mix is:  Great Basin Wild Rye: 3 lb/acre  Green Needle Grass: 2 lb/acre  Indian Rice Grass: 1 lb/acre  Slender Wheat Grass: 2 lb/acre  Thickspike Wheat Grass: 3 lb/acre  Western Wheat Grass: 4 lb/acre 7. Is the concrete sidewalk on the box culvert included in the Structural Concrete CL D (Box) item or is it included in the sidewalk quantity? The concrete sidewalks on the CBC are under Structural Concrete Class D (Box) quantities since they are attached to the Concrete Box Culvert. 8. Are the concrete columns included in the Strucutral Concrete Class D (Box) or (Wall) item? The four concrete columns on each corner of the bridge plus the short wingwalls connecting them to the concrete box culvert are in the Structural Concrete Class D (Wall) quantities. Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 7 of 36 9. Can you please verify the Structural Concrete Class D (Wall) quantity? The riparian walls are under the Structure column and the landscape walls are under the Roadway column for Class D (Wall). When KDG Engineering back-checked quantities for the Cl. D (Wall) concrete, they noticed the quantity under the Roadway column is too high and the quantity under the Structure (bridge) column is too low. The Concrete CL. D (Wall) under the Roadway column should have been 10 CY, not the 25 CY shown. The Concrete CL. D (Wall) under the Structure column should have been 62 CY, not the 57 CY shown. Therefore, the total Concrete CL. D (Wall) should be 72 CY instead of 82 CY. We had 10 CY for the landscape (L-shape) wall. It falls under Conc. CL D (Wall) under the Roadway column. 10. KDG Engineering also verified the Concrete Class D (Box) and it calculated that the plan quantity should be 333 CY, not the 327 CY shown. The bid tab reflects this additional 6 CY of Structural Concrete Class D (Box). 11. Can you make an electronic version (excel) of the bid tabs available to the contractors for bidding? The City will provide an Excel format bid tab for bidders available on the Purchasing website. 12. What are the R-value specifications for embankment? The specified R-value for all embankment is a minimum of 30. Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 8 of 36 EXHIBIT 3 - SOILS REPORT Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 9 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 10 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 11 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 12 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 13 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 14 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 15 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 16 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 17 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 18 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 19 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 20 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 21 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 22 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 23 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 24 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 25 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 26 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 27 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 28 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 29 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 30 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 31 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 32 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 33 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 34 of 36 Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 35 of 36 EXHIBIT 4 - WATERLINE DETAILS Addendum 1 7557 West Prospect Road Bridge Replacement at New Mercer Ditch Page 36 of 36