5TH STREET BRIDGE REPLACEMENT PROJECT CONTRACT JUNE 9, 2017

Transcription

1 ADDENDUM NO. 2 5TH STREET BRIDGE REPLACEMENT PROJECT CONTRACT JUNE 9, 2017 OWNER City of Yuba City 1201 Civic Center Blvd Yuba City CA (530) (530) (Fax) GENERAL Scope A. This Addendum forms a part of the bidding and contract documents and modifies the Project Specifications and Project Plans described below. B. This Addendum consists of 54 pages. Acknowledgment A. Acknowledge receipt of this Addendum in the space provided on the Bid Form. Failure to acknowledge this addendum may result in rejection of bid. THE FOLLOWING PROJECT PLAN SHEETS ARE REVISED AND ATTACHED: Sheets 31, , , 202, and 238 Substitute for the like-numbered sheet. BOOK 1 BID BOOK IS MODIFIED AS FOLLOWS: Bid Items 114, 150, 152, 154, 168,196, 229, 241, and 249 are replaced. Bid item 33A is added. Replace the Bid Item List on pages 3-10 and pages with:

2 Replaced per Addendum No. 2 5TH STREET BRIDGE REPLACEMENT PROJECT CONTRACT NO BID ITEM LIST ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL LEAD COMPLIANCE PLAN LS PROGRESS SCHEDULE (CRITICAL PATH METHOD) LS DEVELOP WATER SUPPLY LS CONSTRUCTION AREA SIGNS LS TRAFFIC CONTROL SYSTEM LS TYPE III BARRICADE EA TEMPORARY PAVEMENT MARKING (PAINT) SQFT 5, TEMPORARY TRAFFIC STRIPE (PAINT) LF 140, PORTABLE DELINEATOR EA 1, TEMPORARY PAVEMENT MARKER EA 2, PORTABLE TEMPORARY SIGNAL ( BRIDGE/EB ON RAMP TO 5th ST AND SECOND ST AND EA 2 BRIDGE ST) PORTABLE CHANGEABLE MESSAGE SIGN EA TEMPORARY RAILING (TYPE K) LF 14, TEMPORARY CRASH CUSHION MODULE EA TEMPORARY ALTERNATIVE CRASH CUSHION EA JOB SITE MANAGEMENT LS PREPARE STORM WATER POLLUTION PREVENTION PLAN LS RAIN EVENT ACTION PLAN EA STORM WATER SAMPLING AND ANALYSIS DAY EA STORM WATER ANNUAL REPORT EA TEMPORARY HYDROSEED SQYD 12, TEMPORARY DRAINAGE INLET PROTECTION EA TEMPORARY FIBER ROLL LF 20, TEMPORARY GRAVEL BAG BERM LF TEMPORARY CONSTRUCTION ENTRANCE EA STREET SWEEPING LS TEMPORARY ACTIVE TREATMENT SYSTEM LS TEMPORARY CONCRETE WASHOUT LS WATER QUALITY SAMPLING AND ANALYSIS DAY EA WATER QUALITY MONITORING REPORT EA 120 VOID 2

3 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL WATER QUALITY ANNUAL REPORT EA ASBESTOS COMPLIANCE PLAN LS CONTRACTOR SUPPLIED QUALIFIED SWALLOW BIOLOGIST AND QUALIFIED BIRD EXCLUSION LS 1 EXPERT 33A AIR BUBBLE CURTAIN SYSTEM LS REMOVE BOLLARD EA REMOVE 4" PVC (WATER) LF REMOVE STOP LOG SYSTEM LF REMOVE CONCRETE PAVEMENT (SQYD) SQYD REMOVE CONCRETE SIGN FOUNDATION EA REMOVE STEEL AND CONCRETE (MISCELLANEOUS)(CY) CY TEMPORARY HIGH-VISIBILITY FENCE LF 5, RESIDENT ENGINEERS OFFICE LS REMOVE TREE (10"-24") EA CLEARING AND GRUBBING (LS) LS REMOVE TREE (25"-36") EA REMOVE TREE (> 36") EA ROADWAY EXCAVATION CY 54, ROADWAY EXCAVATION (UNSUITABLE MATERIAL) CY F STRUCTURE EXCAVATION (BRIDGE) CY 7, STRUCTURE EXCAVATION (TYPE D) CY 1, F STRUCTURE EXCAVATION (RETAINING WALL) CY 2, SAND BEDDING CY F STRUCTURE BACKFILL (BRIDGE) CY F STRUCTURE BACKFILL (RETAINING WALL) CY 4, F STRUCTURE BACKFILL (LEVEE FILL) CY 5, F PERVIOUS BACKFILL (RETAINING WALL) CY F 2"-4" GRAVEL CY DITCH EXCAVATION CY 2, LEVEE MATERIAL IMPORT BORROW CY 4, WEED GERMINATION SQYD 12, IRON SULFATE (LB) LB SOIL AMENDMENT CY RELOCATE BACKFLOW PREVENTER ASSEMBLY EA PACKET FERTILIZER EA 6, SLOW-RELEASE FERTILIZER LB 967 VOID 3

4 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL PLANT (GROUP K) 24" BOX EA PLANT (GROUP A) EA 2, PLANT ESTABLISHMENT WORK (1 YEAR) LS ROCK MULCH (RETENTION BASIN) LS DECOMPOSED GRANITE SQFT 6, WOOD MULCH CY 1, RIVER COBBLE SET IN CONCRETE SQFT 4, BOULDERS LS ROOT BARRIER LF CONTROL AND NEUTRAL CONDUCTORS LS " REMOTE CONTROL VALVE EA /2" REMOTE CONTROL VALVE EA " REMOTE CONTROL VALVE EA STATION IRRIGATION CONTROLLER AND ENCLOSURE (ICC 'B') EA STATION IRRIGATION CONTROLLER AND ENCLOSURE (ICC 'A' & 'B') EA P-F 1" SUPPLY LINE (COPPER PIPE) LF P-F 2" SUPPLY LINE (COPPER PIPE) LF " POTABLE WATER CONNECTION ASSEMBLY AND ENCLOSURE EA CONNECT TO EXISTING IRRIGATION MAILINE EA FLOW SENSOR EA TREE WELL SPRINKLER ASSEMBLY (C-2 Mod) EA RISER SPRINKLER ASSEMBLY (GEAR DRIVEN) (A-5, A-7, A-11) EA POP-UP SPRINKLER ASSEMBLY (GEAR DRIVEN) (A-6, A-8, A-12) EA POP-UP SPRINKLER ASSEMBLY (SHRUB SPRAY) (B-1) EA " GATE VALVE EA P 8" GATE VALVE EA /4" PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 8, " PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 1, /4"PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 1, /2" PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF " PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 1, " PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 900 VOID 4

5 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL " PLASTIC PIPE (CLASS 315) (SUPPLY LINE) LF 4, " PVC PIPE CONDUIT (SLEEVE) LF FIBER ROLLS LF 10, HYDROSEED SQFT 231, CLASS 2 AGGREGATE BASE (CY) CY 20, CEMENT TREATED BASE (ROAD-MIXED, CLASS A)(CY) CY 5, PULVERIZED ROADBED SQYD 4, HIGH FRICTION SURFACE TREATMENT SQYD SLURRY SEAL TON REPLACE ASPHALT CONCRETE PAVEMENT CY HOT MIX ASPHALT (TYPE A) TON 16, PLACE HOT MIX ASPHALT DIKE (TYPE A) LF PLACE HOT MIX ASPHALT DIKE (TYPE E) LF PLACE HOT MIX ASPHALT OVERSIDE DRAIN EA REMOVE ASPHALT CONCRETE PAVEMENT (SQFT) SQFT 58, REMOVE ASPHALT CONCRETE DIKE LF COLD PLANE ASPHALT CONCRETE PAVEMENT SQYD CONTINUOUSLY REINFORCED CONCRETE PAVEMENT CY DRILL AND BOND (DOWEL BAR) EA F ROCKERY RETAINING WALL CY BRIDGE TRESTLE LS TEMPORARY SHORING (5TH STREET BRIDGE) LS TEMPORARY SHORING (2ND STREET UC) LS TEMPORARY SHORING (ROADWAY) LS TEMPORARY PEDESTRIAN STAIRCASE LS " PERMANENT STEEL PILE CASING LF " CAST-IN-DRILLED-HOLE CONCRETE PILING LF 5, " CAST-IN-DRILLED-HOLE CONCRETE PILING LF 2, P FURNISH PILING (CLASS 200) LF 4, DRIVE PILE (CLASS 200) EA P PRESTRESSING CAST-IN-PLACE CONCRETE LS F STRUCTURE CONCRETE, BRIDGE FOOTING CY F STRUCTURAL CONCRETE, BRIDGE CY 12, F STRUCTURAL CONCRETE, BRIDGE (POLYMER FIBER) CY 4,175 VOID 5

6 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL F STRUCTURAL CONCRETE, RETAINING WALL CY F STRUCTURAL CONCRETE, APPROACH SLAB CY F STRUCTURAL CONCRETE, APPROACH SLAB (TYPE N) CY F STRUCTURAL CONCRETE, HEADWALL CY F MINOR CONCRETE (MINOR STRUCTURE) CY F MINOR CONCRETE (BACKFILL) CY F ARCHITECTURAL TREATMENT SQFT DECORATIVE STEEL LB DRILL AND BOND DOWEL LF F FURNISH PRECAST PRESTRESSED PRESTRESSED CONCRETE CA WIDE FLANGE GIRDER (140'- EA 150') F FURNISH PRECAST PRESTRESSED PRESTRESSED CONCRETE CA WIDE FLANGE GIRDER (150'- EA 160') F ERECT PRECAST CONCRETE GIRDER EA TEMPORARY HINGE DEAD WEIGHT LS PTFE BEARING EA P JOINT SEAL ASSEMBLY (MR 4") LF P JOINT SEAL (MR 2") LF JOINT SEAL (TYPE A) LF P JOINT SEAL ASSEMBLY (MR 9") LF P-F BAR REINFORCING STEEL (BRIDGE) LB 5,616, P-F BAR REINFORCING STEEL (RETAINING WALL) LB 211, PEDESTRIAN BARRICADE (TYPE A) EA RECONSTRUCT REMOVE RETAINING WALL (MASONRY WALL) SQFT F SOUND WALL (REINFORCED CONCRETE) SQFT VIBRATION MONITORING LS REMOVE RETAINING WALL (LF) LF BRIDGE REMOVAL (UPR No. 18C-0023) LS BRIDGE REMOVAL (UPR No. 18C-0018) LS BRIDGE REMOVAL (5th STREET No. 18C-0012) LS BRIDGE REMOVAL (2nd STREET No. 18C-0055) LS P-F MISCELLANEOUS METAL (RESTRAINER - CABLE TYPE) LB 8, P 4" PLASTIC PIPE (SEWER) LF P 4" PLASTIC PIPE (WATER) LF P 4" PLASTIC PIPE (COMMUNICATIONS) LF 2,616 VOID 6

7 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL P 18" REINFORCED CONCRETE PIPE LF 6, P 24" REINFORCED CONCRETE PIPE LF P 30" REINFORCED CONCRETE PIPE LF P 36" REINFORCED CONCRETE PIPE LF P 6" PERFORATED STEEL PIPE UNDERDRAIN LF " CORRUGATED STEEL PIPE RISER (0.109" THICK) LF WELDED STEEL PIPE CASING (BRIDGE) LF " WELDED STEEL PIPE CASING (BRIDGE) LF " WELDED STEEL PIPE CASING (BRIDGE) LF P 8" WELDED STEEL PIPE (.134" THICK) LF P 12" COATED WELDED STEEL PIPE (0.25" THICK)(BRIDGE) LF 2, " CONCRETE FLARED END SECTION EA SHALLOW MANHOLE EA MANHOLE EA ABANDON MANHOLE EA ABANDON PIPELINE EA REMOVE PIPE (LF) LF 1, REMOVE INLET EA REMOVE HEADWALL EA REMOVE MANHOLE EA REMODEL MANHOLE EA ADJUST MANHOLE TO GRADE EA ADJUST VALVE BOX EA REMOVE SEWER PIPE LF REMOVE AND REPLACE ROCK SLOPE PROTECTION LS F ROCK SLOPE PROTECTION (LIGHT, METHOD B) (CY) CY 1, F ROCK SLOPE PROTECTION (NO. 2, METHOD B)(CY) CY CONCRETE (CHANNEL LINING) CY SLOPE PAVING (CONCRETE) CY P ROCK SLOPE PROTECTION FABRIC (CLASS 8) SQYD 5, P FILTER FABRIC SY MINOR CONCRETE (TALL RETAINING CURB) LF F MINOR CONCRETE (CURB) (CY) CY MINOR CONCRETE (GUTTER) (LF) LF 160 VOID 7

8 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL F MINOR CONCRETE (GUTTER) (CY) CY DETECTABLE WARNING SURFACE SQFT F MINOR CONCRETE (CURB AND GUTTER) CY F MINOR CONCRETE (DRIVEWAY) CY F MINOR CONCRETE (SIDEWALK) CY MINOR CONCRETE (TEXTURED PAVING) CY F MINOR CONCRETE (CURB RAMP) CY REMOVE CONCRETE CURB (LF) LF 1, REMOVE CONCRETE (CURB AND GUTTER) LF 5, REMOVE CONCRETE (CURB, GUTTER, AND SIDEWALK) (LF) LF 4, P-F MISCELLANEOUS IRON AND STEEL LB 27, UNDERSIDEWALK DRAIN EA MISCELLANEOUS METAL (BRIDGE) LB 2, P-F BRIDGE DECK DRAINAGE SYSTEM LB 60, DESTROY WELL EA WATERLINE CRADLE EA DUCT BANK CRADLE EA CURED-IN-PLACE PIPELINER LF P 4" PLASTIC PIPE (COMMUNICATIONS) (IN BRIDGE) LF 21, RESET FIRE HYDRANT EA P FIRE HYDRANT EA DOUBLE BALL EXPANSION JOINT EA ADJUST MONITORING WELL TO GRADE EA SINGLE BALL EXPANSION JOINT EA PIPE BOLLARD EA " DUCTILE IRON PIPE LF 2, " DUCTILE IRON PIPE (APPROACH) LF AIR RELEASE VALVE EA PARKING BUMPER (PRECAST CONCRETE) EA CONTRACTOR SUPPLIED GENERATOR DAY PIPE FENCE LF TEMPORARY FENCE (TYPE CL-6) LF 2, ' TEMPORARY GATE (TYPE CL-6) EA P CHAIN LINK FENCE (TYPE CL-4, VINYL-CLAD) LF P CHAIN LINK FENCE (TYPE CL-6, VINYL CLAD) LF P CHAIN LINK FENCE (TYPE CL-6, BREAK-AWAY) LF 1, P PIPE GATE EA 2 VOID 8

9 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL P 4' CHAIN LINK GATE (TYPE CL-6) EA P 10' CHAIN LINK GATE (TYPE CL-6) EA P 14' CHAIN LINK GATE (TYPE CL-6) EA REMOVE FENCE LF REMOVE GATE EA P RECONSTRUCT FENCE LF RECONSTRUCT AND PAINT FENCE (PIPE RAILING) LF REMOVE PAVEMENT MARKER EA 1, REMOVE CHANNELIZERS EA TEMPORARY DELINEATOR (CLASS 1)(SURFACE MOUNTED) EA P PAVEMENT MARKER (RETROREFLECTIVE) EA 1, OBJECT MARKER (TYPE N) EA OBJECT MARKER (TYPE P) EA OBJECT MARKER (TYPE R) EA REMOVE RELOCATE MONUMENT SIGN EA REMOVE ROADSIDE SIGN EA RESET ROADSIDE SIGN EA FURNISH SINGLE SHEET ALUMINUM SIGN (0.063"-UNFRAMED) SQFT ROADSIDE SIGN - ONE POST EA ROADSIDE SIGN - TWO POST EA INSTALL SIGN (STRAP AND SADDLE BRACKET METHOD) EA BRIDGE PLAQUES EA STEEL PICKET RAILING LF P-F PIPE HANDRAILING LF P-F STAIRWAY RAILING LF P-F TUBULAR HAND RAILING LF 2, P TRANSITION RAILING (TYPE WB-31) EA ALTERNATIVE FLARED TERMINAL SYSTEM EA CRASH CUSHION EA CONCRETE BARRIER (TYPE 60) LF F CONCRETE BARRIER (TYPE 60A) LF 2, CONCRETE BARRIER (TYPE 60C) LF CONCRETE BARRIER (TYPE 60D) LF CONCRETE BARRIER (TYPE 60C MOD) LF F CONCRETE BARRIER (TYPE 736) LF 146 VOID 9

10 Replaced per Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED UNIT ITEM NO. CODE F MEASURE QUANTITY PRICE TOTAL F CONCRETE BARRIER (TYPE 742) (MOD) LF 2, F CONCRETE BARRIER (TYPE 742B MOD) LF REMOVABLE BARRIER EA F CONCRETE BARRIER (C412B) LF F CONCRETE BARRIER (C412) LF 4, REMOVE GUARDRAIL LF THERMOPLASTIC TRAFFIC STRIPE LF 50, THERMOPLASTIC PAVEMENT MARKING SQFT 5, PAINT TRAFFIC STRIPE (2 COAT) LF 13, REMOVE THERMOPLASTIC TRAFFIC STRIPE LF 2, REMOVE THERMOPLASTIC PAVEMENT MARKING SQFT P BRIDGE AND STREET LIGHTING LS P TRAFFIC SIGNAL (5th St/J St) LS P TRAFFIC SIGNAL (Sutter St/5th St On-Off Ramp) LS P TRAFFIC SIGNAL (Second St /Bridge St) LS INTERCONNECTION CONDUIT AND CABLE (LS) LS TEMPORARY LIGHTING (SECOND STREET AND BRIDGE STREET) LS MOBILIZATION LS 1 Items designated with a "F" indicate final pay item. Items designated with a "P" indicate the item is eligible for progress payment VOID TOTAL AMOUNT BID = THE BIDDER'S EXECUTION ON THE SIGNATURE PORTION OF THIS PROPOSAL SHALL ALSO CONSTITUTE AN ENDORSEMENT AND EXECUTION OF THOSE CERTIFICATIONS WHICH ARE A PART OF THIS PROPOSAL 10

11 Replaced per Addendum No. 2 Replace Sheet 27 and Exhibit 12-B on Sheet 28 with: 11

12 Local Assistance Procedures Manual Exhibit 12-B Bidder s List of Subcontractors (DBE and NON-DBE) Exhibit 12-B Bidder s List of subcontractor (DBE and Non-DBE) Part 1 As of March 1, 2015 Contractors (and sub-contractors) wishing to bid on public works contracts shall be registered with the State Division of Industrial Relations and certified to bid on Public Works contracts. Please register at: In accordance with Title 49, Section of the Code of Federal Regulations, and Section 4104 of the Public Contract Code of the State of California, as amended, the following information is required for each sub-contractor who will perform work amounting to more than one half of one percent (0.5%) of the Total Base Bid or $10,000 (whichever is greater). Photocopy this form for additional firms. Subcontractor Name and Line Item & Description Subcontract Percentage of Contractor DBE DBE Cert Annual Gross Receipts Location Amount Bid Item Subcontracted License Number DIR Reg Number (Y/N) Number Name: City, State: <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. Name: City, State: <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. Name: City, State: <$1 million <$5 million <$10 million <$15 million Name: City, State: Name: City, State: Name: City, State: Distribution: 1) Original-Local Agency File 2) Copy-DLAE w/ Award Package Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. Page 1 of 2 September 2016

13 Local Assistance Procedures Manual Exhibit 12-B Bidder s List of Subcontractors (DBE and NON-DBE) Exhibit 12-B Bidder s List of subcontractor (DBE and Non-DBE) Part 2 In accordance with Title 49, Section 26 of the Code of Federal Regulations, the Bidder shall list all subcontractor who provide a quote or bid but were not selected to participate as a subcontractor on this project. Photocopy this form for additional firms. Name: Subcontractor Name and Location City, State: Name: City, State: Name: City, State: Name: City, State: Name: City, State: Name: City, State: Line Item & Description Subcontract Amount Percentage of Bid Item Subcontracted Contractor License Number DIR Reg Number DBE (Y/N) DBE Cert Number Annual Gross Receipts <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. <$1 million <$5 million <$10 million <$15 million Age of Firm: yrs. Distribution: 1) Original-Local Agency File 2) Copy-DLAE w/ Award Package Page 2 of 2 September 2016

14 Addendum No. 2 BOOK 2 NOTICE TO BIDDERS AND SPECIAL PROVISIONS IS MODIFIED AS FOLLOWS: Replace the Bid Item List on pages with: 5TH STREET BRIDGE REPLACEMENT PROJECT CONTRACT NO BID ITEM LIST ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY LEAD COMPLIANCE PLAN LS PROGRESS SCHEDULE (CRITICAL PATH METHOD) LS DEVELOP WATER SUPPLY LS CONSTRUCTION AREA SIGNS LS TRAFFIC CONTROL SYSTEM LS TYPE III BARRICADE EA TEMPORARY PAVEMENT MARKING (PAINT) SQFT 5, TEMPORARY TRAFFIC STRIPE (PAINT) LF 140, PORTABLE DELINEATOR EA 1, TEMPORARY PAVEMENT MARKER EA 2, PORTABLE TEMPORARY SIGNAL ( BRIDGE/EB ON RAMP TO 5th ST AND SECOND ST AND EA 2 BRIDGE ST) PORTABLE CHANGEABLE MESSAGE SIGN EA TEMPORARY RAILING (TYPE K) LF 14, TEMPORARY CRASH CUSHION MODULE EA TEMPORARY ALTERNATIVE CRASH CUSHION EA JOB SITE MANAGEMENT LS PREPARE STORM WATER POLLUTION PREVENTION PLAN LS RAIN EVENT ACTION PLAN EA STORM WATER SAMPLING AND ANALYSIS DAY EA STORM WATER ANNUAL REPORT EA TEMPORARY HYDROSEED SQYD 12, TEMPORARY DRAINAGE INLET PROTECTION EA TEMPORARY FIBER ROLL LF 20, TEMPORARY GRAVEL BAG BERM LF TEMPORARY CONSTRUCTION ENTRANCE EA 4 14

15 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY STREET SWEEPING LS TEMPORARY ACTIVE TREATMENT SYSTEM LS TEMPORARY CONCRETE WASHOUT LS WATER QUALITY SAMPLING AND ANALYSIS DAY EA WATER QUALITY MONITORING REPORT EA WATER QUALITY ANNUAL REPORT EA ASBESTOS COMPLIANCE PLAN LS CONTRACTOR SUPPLIED QUALIFIED SWALLOW BIOLOGIST AND QUALIFIED BIRD EXCLUSION LS 1 EXPERT 33A AIR BUBBLE CURTAIN SYSTEM LS REMOVE BOLLARD EA REMOVE 4" PVC (WATER) LF REMOVE STOP LOG SYSTEM LF REMOVE CONCRETE PAVEMENT (SQYD) SQYD REMOVE CONCRETE SIGN FOUNDATION EA REMOVE STEEL AND CONCRETE (MISCELLANEOUS)(CY) CY TEMPORARY HIGH-VISIBILITY FENCE LF 5, RESIDENT ENGINEERS OFFICE LS REMOVE TREE (10"-24") EA CLEARING AND GRUBBING (LS) LS REMOVE TREE (25"-36") EA REMOVE TREE (> 36") EA ROADWAY EXCAVATION CY 54, ROADWAY EXCAVATION (UNSUITABLE MATERIAL) CY F STRUCTURE EXCAVATION (BRIDGE) CY 7, STRUCTURE EXCAVATION (TYPE D) CY 1, F STRUCTURE EXCAVATION (RETAINING WALL) CY 2, SAND BEDDING CY F STRUCTURE BACKFILL (BRIDGE) CY F STRUCTURE BACKFILL (RETAINING WALL) CY 4, F STRUCTURE BACKFILL (LEVEE FILL) CY 5, F PERVIOUS BACKFILL (RETAINING WALL) CY F 2"-4" GRAVEL CY DITCH EXCAVATION CY 2, LEVEE MATERIAL IMPORT BORROW CY 4,132 15

16 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY WEED GERMINATION SQYD 12, IRON SULFATE (LB) LB SOIL AMENDMENT CY RELOCATE BACKFLOW PREVENTER ASSEMBLY EA PACKET FERTILIZER EA 6, SLOW-RELEASE FERTILIZER LB PLANT (GROUP K) 24" BOX EA PLANT (GROUP A) EA 2, PLANT ESTABLISHMENT WORK (1 YEAR) LS ROCK MULCH (RETENTION BASIN) LS DECOMPOSED GRANITE SQFT 6, WOOD MULCH CY 1, RIVER COBBLE SET IN CONCRETE SQFT 4, BOULDERS LS ROOT BARRIER LF CONTROL AND NEUTRAL CONDUCTORS LS " REMOTE CONTROL VALVE EA /2" REMOTE CONTROL VALVE EA " REMOTE CONTROL VALVE EA STATION IRRIGATION CONTROLLER AND ENCLOSURE (ICC 'B') EA STATION IRRIGATION CONTROLLER AND ENCLOSURE (ICC 'A' & 'B') EA P-F 1" SUPPLY LINE (COPPER PIPE) LF P-F 2" SUPPLY LINE (COPPER PIPE) LF " POTABLE WATER CONNECTION ASSEMBLY AND ENCLOSURE EA CONNECT TO EXISTING IRRIGATION MAILINE EA FLOW SENSOR EA TREE WELL SPRINKLER ASSEMBLY (C-2 Mod) EA RISER SPRINKLER ASSEMBLY (GEAR DRIVEN) (A-5, A-7, A-11) EA POP-UP SPRINKLER ASSEMBLY (GEAR DRIVEN) (A-6, A-8, A-12) EA POP-UP SPRINKLER ASSEMBLY (SHRUB SPRAY) (B-1) EA " GATE VALVE EA P 8" GATE VALVE EA /4" PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 8,100 16

17 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY " PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 1, /4"PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 1, /2" PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF " PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF 1, " PLASTIC PIPE (SCHEDULE 40) (SUPPLY LINE) LF " PLASTIC PIPE (CLASS 315) (SUPPLY LINE) LF 4, " PVC PIPE CONDUIT (SLEEVE) LF FIBER ROLLS LF 10, HYDROSEED SQFT 231, CLASS 2 AGGREGATE BASE (CY) CY 20, CEMENT TREATED BASE (ROAD-MIXED, CLASS A)(CY) CY 5, PULVERIZED ROADBED SQYD 4, HIGH FRICTION SURFACE TREATMENT SQYD SLURRY SEAL TON REPLACE ASPHALT CONCRETE PAVEMENT CY HOT MIX ASPHALT (TYPE A) TON 16, PLACE HOT MIX ASPHALT DIKE (TYPE A) LF PLACE HOT MIX ASPHALT DIKE (TYPE E) LF PLACE HOT MIX ASPHALT OVERSIDE DRAIN EA REMOVE ASPHALT CONCRETE PAVEMENT (SQFT) SQFT 58, REMOVE ASPHALT CONCRETE DIKE LF COLD PLANE ASPHALT CONCRETE PAVEMENT SQYD CONTINUOUSLY REINFORCED CONCRETE PAVEMENT CY DRILL AND BOND (DOWEL BAR) EA F ROCKERY RETAINING WALL CY BRIDGE TRESTLE LS TEMPORARY SHORING (5TH STREET BRIDGE) LS TEMPORARY SHORING (2ND STREET UC) LS TEMPORARY SHORING (ROADWAY) LS TEMPORARY PEDESTRIAN STAIRCASE LS " PERMANENT STEEL PILE CASING LF " CAST-IN-DRILLED-HOLE CONCRETE PILING LF 5, " CAST-IN-DRILLED-HOLE CONCRETE PILING LF 2, P FURNISH PILING (CLASS 200) LF 4,575 17

18 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY DRIVE PILE (CLASS 200) EA P PRESTRESSING CAST-IN-PLACE CONCRETE LS F STRUCTURE CONCRETE, BRIDGE FOOTING CY F STRUCTURAL CONCRETE, BRIDGE CY 12, F STRUCTURAL CONCRETE, BRIDGE (POLYMER FIBER) CY 4, F STRUCTURAL CONCRETE, RETAINING WALL CY F STRUCTURAL CONCRETE, APPROACH SLAB CY F STRUCTURAL CONCRETE, APPROACH SLAB (TYPE N) CY F STRUCTURAL CONCRETE, HEADWALL CY F MINOR CONCRETE (MINOR STRUCTURE) CY F MINOR CONCRETE (BACKFILL) CY F ARCHITECTURAL TREATMENT SQFT DECORATIVE STEEL LB DRILL AND BOND DOWEL LF F FURNISH PRECAST PRESTRESSED PRESTRESSED CONCRETE CA WIDE FLANGE GIRDER (140'- EA 150') F FURNISH PRECAST PRESTRESSED PRESTRESSED CONCRETE CA WIDE FLANGE GIRDER (150'- EA 160') F ERECT PRECAST CONCRETE GIRDER EA TEMPORARY HINGE DEAD WEIGHT LS PTFE BEARING EA P JOINT SEAL ASSEMBLY (MR 4") LF P JOINT SEAL (MR 2") LF JOINT SEAL (TYPE A) LF P JOINT SEAL ASSEMBLY (MR 9") LF P-F BAR REINFORCING STEEL (BRIDGE) LB 5,616, P-F BAR REINFORCING STEEL (RETAINING WALL) LB 211, PEDESTRIAN BARRICADE (TYPE A) EA RECONSTRUCT REMOVE RETAINING WALL (MASONRY WALL) SQFT F SOUND WALL (REINFORCED CONCRETE) SQFT VIBRATION MONITORING LS REMOVE RETAINING WALL (LF) LF BRIDGE REMOVAL (UPR No. 18C-0023) LS BRIDGE REMOVAL (UPR No. 18C-0018) LS BRIDGE REMOVAL (5th STREET No. 18C-0012) LS 1 18

19 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY BRIDGE REMOVAL (2nd STREET No. 18C-0055) LS P-F MISCELLANEOUS METAL (RESTRAINER - CABLE TYPE) LB 8, P 4" PLASTIC PIPE (SEWER) LF P 4" PLASTIC PIPE (WATER) LF P 4" PLASTIC PIPE (COMMUNICATIONS) LF 2, P 18" REINFORCED CONCRETE PIPE LF 6, P 24" REINFORCED CONCRETE PIPE LF P 30" REINFORCED CONCRETE PIPE LF P 36" REINFORCED CONCRETE PIPE LF P 6" PERFORATED STEEL PIPE UNDERDRAIN LF " CORRUGATED STEEL PIPE RISER (0.109" THICK) LF WELDED STEEL PIPE CASING (BRIDGE) LF " WELDED STEEL PIPE CASING (BRIDGE) LF " WELDED STEEL PIPE CASING (BRIDGE) LF P 8" WELDED STEEL PIPE (.134" THICK) LF P 12" COATED WELDED STEEL PIPE (0.25" THICK)(BRIDGE) LF 2, " CONCRETE FLARED END SECTION EA SHALLOW MANHOLE EA MANHOLE EA ABANDON MANHOLE EA ABANDON PIPELINE EA REMOVE PIPE (LF) LF 1, REMOVE INLET EA REMOVE HEADWALL EA REMOVE MANHOLE EA REMODEL MANHOLE EA ADJUST MANHOLE TO GRADE EA ADJUST VALVE BOX EA REMOVE SEWER PIPE LF REMOVE AND REPLACE ROCK SLOPE PROTECTION LS F ROCK SLOPE PROTECTION (LIGHT, METHOD B) (CY) CY 1, F ROCK SLOPE PROTECTION (NO. 2, METHOD B)(CY) CY CONCRETE (CHANNEL LINING) CY SLOPE PAVING (CONCRETE) CY 60 19

20 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY P ROCK SLOPE PROTECTION FABRIC (CLASS 8) SQYD 5, P FILTER FABRIC SY MINOR CONCRETE (TALL RETAINING CURB) LF F MINOR CONCRETE (CURB) (CY) CY MINOR CONCRETE (GUTTER) (LF) LF F MINOR CONCRETE (GUTTER) (CY) CY DETECTABLE WARNING SURFACE SQFT F MINOR CONCRETE (CURB AND GUTTER) CY F MINOR CONCRETE (DRIVEWAY) CY F MINOR CONCRETE (SIDEWALK) CY MINOR CONCRETE (TEXTURED PAVING) CY F MINOR CONCRETE (CURB RAMP) CY REMOVE CONCRETE CURB (LF) LF 1, REMOVE CONCRETE (CURB AND GUTTER) LF 5, REMOVE CONCRETE (CURB, GUTTER, AND SIDEWALK) (LF) LF 4, P-F MISCELLANEOUS IRON AND STEEL LB 27, UNDERSIDEWALK DRAIN EA MISCELLANEOUS METAL (BRIDGE) LB 2, P-F BRIDGE DECK DRAINAGE SYSTEM LB 60, DESTROY WELL EA WATERLINE CRADLE EA DUCT BANK CRADLE EA CURED-IN-PLACE PIPELINER LF P 4" PLASTIC PIPE (COMMUNICATIONS) (IN BRIDGE) LF 21, RESET FIRE HYDRANT EA P FIRE HYDRANT EA DOUBLE BALL EXPANSION JOINT EA ADJUST MONITORING WELL TO GRADE EA SINGLE BALL EXPANSION JOINT EA PIPE BOLLARD EA " DUCTILE IRON PIPE LF 2, " DUCTILE IRON PIPE (APPROACH) LF AIR RELEASE VALVE EA PARKING BUMPER (PRECAST CONCRETE) EA CONTRACTOR SUPPLIED GENERATOR DAY PIPE FENCE LF TEMPORARY FENCE (TYPE CL-6) LF 2,077 20

21 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY ' TEMPORARY GATE (TYPE CL-6) EA P CHAIN LINK FENCE (TYPE CL-4, VINYL-CLAD) LF P CHAIN LINK FENCE (TYPE CL-6, VINYL CLAD) LF P CHAIN LINK FENCE (TYPE CL-6, BREAK-AWAY) LF 1, P PIPE GATE EA P 4' CHAIN LINK GATE (TYPE CL-6) EA P 10' CHAIN LINK GATE (TYPE CL-6) EA P 14' CHAIN LINK GATE (TYPE CL-6) EA REMOVE FENCE LF REMOVE GATE EA P RECONSTRUCT FENCE LF RECONSTRUCT AND PAINT FENCE (PIPE RAILING) LF REMOVE PAVEMENT MARKER EA 1, REMOVE CHANNELIZERS EA TEMPORARY DELINEATOR (CLASS 1)(SURFACE MOUNTED) EA P PAVEMENT MARKER (RETROREFLECTIVE) EA 1, OBJECT MARKER (TYPE N) EA OBJECT MARKER (TYPE P) EA OBJECT MARKER (TYPE R) EA REMOVE RELOCATE MONUMENT SIGN EA REMOVE ROADSIDE SIGN EA RESET ROADSIDE SIGN EA FURNISH SINGLE SHEET ALUMINUM SIGN (0.063"-UNFRAMED) SQFT ROADSIDE SIGN - ONE POST EA ROADSIDE SIGN - TWO POST EA INSTALL SIGN (STRAP AND SADDLE BRACKET METHOD) EA BRIDGE PLAQUES EA STEEL PICKET RAILING LF P-F PIPE HANDRAILING LF P-F STAIRWAY RAILING LF P-F TUBULAR HAND RAILING LF 2, P TRANSITION RAILING (TYPE WB-31) EA ALTERNATIVE FLARED TERMINAL SYSTEM EA CRASH CUSHION EA CONCRETE BARRIER (TYPE 60) LF

22 Addendum No. 2 ITEM ITEM P- ITEM UNIT OF ESTIMATED NO. CODE F MEASURE QUANTITY F CONCRETE BARRIER (TYPE 60A) LF 2, CONCRETE BARRIER (TYPE 60C) LF CONCRETE BARRIER (TYPE 60D) LF CONCRETE BARRIER (TYPE 60C MOD) LF F CONCRETE BARRIER (TYPE 736) LF F CONCRETE BARRIER (TYPE 742) (MOD) LF 2, F CONCRETE BARRIER (TYPE 742B MOD) LF REMOVABLE BARRIER EA F CONCRETE BARRIER (C412B) LF F CONCRETE BARRIER (C412) LF 4, REMOVE GUARDRAIL LF THERMOPLASTIC TRAFFIC STRIPE LF 50, THERMOPLASTIC PAVEMENT MARKING SQFT 5, PAINT TRAFFIC STRIPE (2 COAT) LF 13, REMOVE THERMOPLASTIC TRAFFIC STRIPE LF 2, REMOVE THERMOPLASTIC PAVEMENT MARKING SQFT P BRIDGE AND STREET LIGHTING LS P TRAFFIC SIGNAL (5th St/J St) LS P TRAFFIC SIGNAL (Sutter St/5th St On-Off Ramp) LS P TRAFFIC SIGNAL (Second St /Bridge St) LS INTERCONNECTION CONDUIT AND CABLE (LS) LS TEMPORARY LIGHTING (SECOND STREET AND BRIDGE STREET) LS MOBILIZATION LS 1 Add to section B: River Bed: Area that is physically under water River Bank: The land directly adjacent to the edge of the water (commonly unvegetated sandy or sediment deposited area) Riparian Area: This is a buffer zone around the river that has vegetative habitats which are directly dependent on the waterway Floodplain: Area that is outside of the river banks that only floods during events of high water Channel: the definition of channel within the permits is defined by the agency issuing the permit. As those definitions may vary, specific reference to the permit where channel is used is needed to provide an accurate definition of the word 22

23 Addendum No. 2 Add section B: As-builts of the levee modifications in the west levee and test results for the embankments within the former UPRR alignment on the Yuba City side of the 5 th Street Bridge are included in the Information Handout. Replace the table in section B(2)(b)(ii) of the RSS with: Bid to the Department of Transportation Bid Form Submittal Schedule for a Non-Informal Bid Federal-Aid Contract with a DBE Goal Form Submittal deadline Copy of the Bid to the Department of Transportation as submitted at the time of bid with the public works contractor registration number Subcontractor List Copy of the Subcontractor List as submitted at the time of bid with the public works contractor registration number Small Business Status Opt Out of Payment Adjustments for Price Index Fluctuations a DBE Commitment DBE Confirmation DBE Good Faith Efforts Documentation Time of bid except for the public works contractor registration number 10 days after bid opening Time of bid except for the public works contractor registration number 10 days after bid opening Time of bid Time of bid No later than 4 p.m. on the 4th day after bid opening b No later than 4 p.m. on the 4th day after bid opening b No later than 4 p.m. on the 4th day after bid opening b a Submit only if you choose the option. b If the last day for submitting the bid form falls on a Saturday or holiday, it may be submitted on the next business day with the same effect as if it had been submitted on the day specified. Add to the table between the 2nd and 3rd paragraphs of the RSS for section C(3): PG&E power pole 51 feet left of Sta "F" Line August 30, 2017 PG&E power pole 60 feet left of Sta "F" Line August 30, 2017 PG&E power pole** 27 feet right of Sta "F" Line August 30, 2017 Underground lighting conduit*** Left and right of Sta "F" Line August 30, 2017 **Construction of Pier 7 and 8 of the 5th Street Bridge will be hindered until this pole is relocated. ***Construction of Pier 5 of the 5th Street Bridge will be hindered until this utility is relocated. 23

24 Addendum No. 2 Add to section : Permit extensions will be obtained to allow construction between the levees to continue 4 weeks beyond November 1. This does not include extensions of the in-water work windows. Do not begin construction of the project in the west levee of the Feather River or to the west of it before January 8, 2018 with the exception of the installation of the trestle and Pier 2. Trestle construction and Pier 2 construction do not have this time restriction. Replace the 2nd and 3rd paragraph of section C with: For bridges, temporary trestles, embankments, falsework, or other temporary work constructed within the limits of the usable channel of the Feather River provide 1 opening for the passage of small boats. The opening must have a horizontal clearance of at least 40 feet measured normal to the direction of flow. The minimum vertical clearance is 10.0 feet from the trestle soffit to the water surface elevation. You may assume the maximum water surface elevation between June 1 and November 1 to be a maximum of 46.0 feet. The trestle deck above the opening providing passage for boats will have to be removed between November 1 and June 1 if the vertical clearance to the trestle soffit is less than 10 feet due to changing water surface elevation. You may place the trestle at a higher elevation to extend the time before the deck over the opening providing passage for boats will need to be removed. Replace items 8, 9 and 14 in the list describing the protection measures within Species Protection Area 1 in section A with: 8. Any piles driven into the river channel for use in the temporary construction trestle must be installed using vibratory driving to the greatest extent possible. If use of an impact hammer cannot be avoided, monitoring will be performed to ensure thresholds are not exceeded. If thresholds are exceeded, a bubble curtain is required. Stop work if observed migrating fish are stunned or otherwise directly impacted by noise and vibration from pile driving. Work must not resume until the fish clears the construction area under its own power, or through collection and release by the City s qualified fish biologist. Thresholds for underwater sound levels during pile installation are: Un-Attenuated Trestle Piles in Water Noise Threshold Distance 206 db peak SPL 14 m 187 db cumulative SEL 209 m 183 db cumulative SEL 386 m 150 db RMS 2929 m Un-Attenuated Trestle Piles on Land Noise Threshold Distance 206 db peak SPL 3 m 187 db cumulative SEL 71 m 183 db cumulative SEL 132 m 150 db RMS 464 m 9. A bubble curtain must be utilized to attenuate noise and vibration during the placement of 10-foot diameter shafts when construction is in water and when other, more effective attenuation cannot be 24

25 Addendum No. 2 provided (such as a dewatered coffer dam). Stop work if observed migrating fish are stunned or otherwise directly impacted by noise and vibration from pile driving. Work must not resume until the fish clears the construction area under its own power, or through collection and release by the City s qualified fish biologist. Thresholds for underwater sound levels during pile installation are: Attenuated Large Diameter Shafts in Water Noise Threshold Distance 206 db peak SPL 1 m 187 db cumulative SEL 43 m 183 db cumulative SEL 79 m 150 db RMS 171 m Un-Attenuated Large Diameter Shafts on Land Noise Threshold Distance 206 db peak SPL 7 m 187 db cumulative SEL 43 m 183 db cumulative SEL 80 m 150 db RMS 5857 m 14. Over-sized casing installed for the purpose of de-watering do not require an attenuation system unless the thresholds below are exceeded. Stop work if observed migrating fish are stunned or otherwise directly impacted by noise and vibration from pile driving. Work must not resume until the fish clears the construction area under its own power, or through collection and release by the City s qualified fish biologist. Thresholds for underwater sound levels during pile installation are: Un-Attenuated Over-sized Casings in Water Noise Threshold Distance 206 db peak SPL 1 m 187 db cumulative SEL 43 m 183 db cumulative SEL 79 m 150 db RMS 171 m AIR BUBBLE CURTAIN SYSTEM A General A(1) Summary Replace section : Section includes specifications for designing, furnishing, installing, operating, monitoring, maintaining, and removing air bubble curtain system to reduce underwater acoustic waves generated by pile driving in water A(2) Submittals A(2)(a) Air Bubble Curtain System Working Drawings with Supplement 25

26 Addendum No. 2 Submit air bubble curtain system working drawings with supplement prepared and signed by an engineer who is registered as a mechanical engineer in the State. Within 15 days of Contract approval or at preconstruction conference, whichever comes first: 1. Submit 5 copies of air bubble curtain system working drawings with supplement for review. Allow 10 days for the Department s review. The Engineer provides comments and specifies the date when the review stopped if revisions are required. 2. Change and resubmit a revised air bubble curtain system working drawings with supplement within 5 days of receiving the Engineer's comments. The Department s review resumes when a complete air bubble curtain system working drawings with supplement is resubmitted. Allow 10 days for review of the resubmittal. 3. When the Engineer authorizes the air bubble curtain system working drawings with supplement, submit an electronic copy and 5 printed copies of the authorized air bubble curtain system working drawings with supplemental information. The air bubble curtain system working drawings with supplement must include: 1. Working drawings: 1.1. Complete details of the system including mechanical and structural details 1.2. Details of anchorage components, air compressors, supply lines, distribution manifolds, aeration pipes and frame 1.3. Details of proposed means of isolating noise-producing systems on the pile-driving barge 1.4. Details of meters, gauges, and recording devices 1.5. Description of measures taken to avoid shining light into the water during pile driving operations 1.6. Details of the manufacturer's recommendations for installation of the flow meters in conditions of laminar flow and non-laminar flow 2. Supplement to the working drawing: 2.1. Independently checked design calculations 2.2. Materials list including the name of the manufacturer and the source, model number, description, and standard of manufacture 2.3. Manufacturer's descriptive data and catalog cuts for all products proposed for the system including air compressors 2.4. Calculations showing pressure loss in the piping system and estimated flows from the most removed orifice of the aeration piping B Materials Air bubble curtain system must include the following: 1. Air bubble curtain system consists of multiple and concentric layers of perforated aeration pipes stacked vertically in accordance with the following: Water Depth (ft) No. of Layers 0 to less than to less than

27 Addendum No Pipes must be arranged in layers in a geometric pattern, which allow for the pile driving operation to be completely enclosed by bubbles for the full depth of the water column and for a radial dimension of no more than 1.5 feet as measured from the outside surface of the pile. 3. The lowest layer of perforated aeration pipes must be designed to ensure contact with the mudline without sinking into the mud. 4. The system must be able to provide a bubble flux of 22 cubic feet per minute per linear feet of pipe in each layer. Air holes must be of 0.06 inch in diameter and spaced approximately 0.8 inch apart. Air holes must be placed in four adjacent rows along the pipe to provide uniform bubble flux. 5. Meters: 5.1. Install pressure meters at all inlets to aeration pipelines (manifolds) and at points of lowest pressure in each branch of the aeration pipeline pipelines (manifolds) Install flow meters in the main line at each compressor and at each branch of the aeration pipelines (manifold). The flow meter at the compressor may be eliminated if the feedline from the compressor is continuous to the aeration pipe inlet Install flow meters according to the manufacturer s recommendation based on either laminar flow or non-laminar flow, which ever applies C Construction Inspect the air bubble curtain system for proper operation before each deployment and as necessary during deployment. Proper operation during deployment is determined by observation of the digital meters (air flow) and analog gauges (pressure) in the monitoring station and by other methods authorized by the Engineer. Do not drive piles requiring air bubble curtain if air bubble curtain system is not authorized. Start the air bubble curtain system before driving piles. Conduct performance test of the air bubble curtain system before any pile driving operation to confirm the pressures and flow rates at each manifold ring meet the calculated values. Submit inspection and performance reports within 72 hours following the inspection or performance test. Install gauges above the water line that are easily accessible. Log readings every 15 minute and at other times, as determined by the Engineer. Maintain a graphical plot showing the variation of the meter readings with time. Monitor the condition of the air bubble curtain system and prepare inspection reports daily during pile driving operations and no less than every other day during periods of no activity. Following constitutes failure of air bubble curtain system: 1. The pressure or flow rate in any meter falls below 90 percent of its determined operating value during the pile driving operation. Operating values based on calculated data are determined during the performance test. 2. Inspection of the perforated pipe indicates erosion of the holes or debris has clogged the holes. If the air bubble curtain system fails, stop the pile driving immediately. Do not resume pile driving at any given location until the air bubble curtain system at that location is again operating as specified or as authorized by the Engineer. Remove air bubble curtain system when no longer needed as authorized by the Engineer D Payment Not Used 27

28 Addendum No. 2 Add to the 3rd paragraph of section : The review time for shop drawings for the trestle is 10 working days. Replace the last two paragraphs of section C(1) with: Remove any oversized casings installed for construction to the long term scour elevation shown. Replace section B(1) with: Coat the interior and exterior portions of the welded steel pipe with epoxy. The epoxy coating must be applied to the interior and exterior surfaces of welded steel pipe under ANSI/AWWA C Repair of internal and external wall coatings must comply with the following: 1. Breaks or scuffs in the epoxy coating that are less than 36 square inches must be repaired by the application of epoxy material similar to and compatible with the durability, adhesion and appearance of the original epoxy coating 2. Repair coating must be a minimum thickness of inch, 16 mils, after drying 3. Department rejects a pipe section if individual breaks exceed 36 square inches or if the total area of breaks exceeds 0.5 percent of the total surface area of the pipe section Coat all field welds with epoxy with a minimum thickness of inch, 16 mils, after drying. Coat the welds in the interior and exterior of the pipe. Add to Appendix L: The Section 408 Permit requirements are included in other permits. No separate 408 Permit will be included in the special provisions. Add to Appendix N: The following is a draft of the CVFPB Encroachment Permit. The final permit is pending and will be made available prior to the bid opening. No significant changes are anticipated between the draft and final permit. 28

29 ATTACHMENT B - Draft Permit No STATE OF CALIFORNIA THE RESOURCES AGENCY THE CENTRAL VALLEY FLOOD PROTECTION BOARD DRAFT This Permit is issued to: PERMIT NO BD City of Yuba City 1201 Civic Center Blvd Yuba City, California The includes removal of the existing twolane 5th Street Bridge (Bridge No. 18C-0012) over the Feather River, between Yuba City and Marysville, and reconstruction to a four-lane bridge with a ten-foot wide Class 1 multi-use path. The project includes reconstruction of the approach roadways to the bridge in both cities, relocation of existing utilities (under separate permits), improvements to adjacent pedestrian, bicycle trails, and levee access ramps, and removal and replacement of trees in the floodway. 5th Street Bridge connects Bridge Street in Yuba City to Fifth Street in Marysville, at N W, Feather River, Yuba County, CA. NOTE: Special Conditions have been incorporated herein which may place limitations on and/or require modification of your proposed project as described above. (SEAL) Dated: Executive Officer GENERAL CONDITIONS: ONE: This permit is issued under the provisions of Sections of the Water Code. TWO: Only work described in the subject application is authorized hereby. THREE: This permit does not grant a right to use or construct works on land owned by the Sacramento and San Joaquin Drainage District or on any other land. FOUR: The approved work shall be accomplished under the direction and supervision of the State Department of Water Resources, and the DWR 3784 (Rev. 9/85) 29 Page 1 of 4