31-IFB 092-25-RM ADDENDUM 3 REMOVE AND REPLACE Plan Sheet 4-Addendum 3.pdf

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PROJECT SPECIFIC NOTES:

I. THE IMPROVEMENTS UNDER THIS CONTRACT CONSIST OF THE INSTALLATION OF

SANITARY SEWER FORCEMAIN, SEWER MANHOLES, INSTALLATION OF A SURGE TANK,

RELOCATION OF AN EXISTING CHEMICAL TANK, REMOVAL AND ABANDONMENT OF

EXISTING SEWER FORCEMAINS, CONCRETE DITCH PAVEMENT, ASPHALT PAVEMENT

PATCHING, AND RELATED ITEMS AS IDENTIFIED IN THE CONTRACT DOCUMENTS.

2. SURVEY DATA INCLUDED IN THE CONTRACT DOCUMENTS WAS PROVIDED BY CITY OF

TALLAHASSEE SURVEYING DEPARTMENT. HORIZONTAL CONTROL IS BASED UPON

FLORIDA NORTH STATE PLANE COORDINATES (NAD 85). VERTICAL CONTROL IS BASED

ON NAVD 1988.

5. WORKDAY: PERFORM ALL WORK BETWEEN 8:00 A.M. AND 7:00 P.M., MONDAY THROUGH

SATURDAY. NO WORK SHALL BE PERFORMED ON HOLIDAYS (NEW YEAR'S DAY,

MEMORIAL DAY, INDEPENDENCE DAY, LABOR DAY, THANKSGIVING DAY, AND CHRISTMAS

DAY).

4. ALL WORK WITHIN THE MEGINNIS ARM ROAD RIGHT-OF-WAY SHALL BE IN

ACCORDANCE WITH LEON COUNTY PUBLIC WORKS RIGHT-OF-WAY PLACEMENT PERMIT

# LRW24208. ALL ROAD CLOSURE AND/OR LANE CLOSURES SHALL BE APPROVED BY

LEON COUNTY PRIOR TO INITIATING WORK REQUIRING CLOSURES. THE REQUEST

SHALL BE IN WRITING 14 DAYS IN ADVANCE OF THE CLOSURE. NO LANE CLOSURES

SHALL BE ALLOWED BETWEEN 7 AM AND 9 AM OR 4 PM TO 6 PM.

5. ALL WORK SHALL BE IN ACCORDANCE WITH LEON COUNTY ENVIRONMENTAL

MANAGEMENT PERMIT LEM24062. A PRE-CONSTRUCTION MEETING WITH LEON

COUNTY SHALL BE HELD PRIOR TO THE COMMENCEMENT OF ANY CONSTRUCTION

ACTIVITIES. THE LIMITS OF CLEARING SHALL BE MARKED AND/OR STAKED PRIOR TO

THE PRE-CONSTRUCTION MEETING. THE LEON COUNTY INSPECTOR FOR THIS PROJECT

IS MR. DAVID GRAHAM (850-606-1578 OR 850-544-0827).

6. ROAD OR LANE CLOSURES WILL BE LIMITED TO SHORT SECTIONS OF ROADWAY TO

7.

8.

9.

REDUCE THE OVERALL IMPACT TO THE TRAVELING PUBLIC AND BUSINESSES. THE

CITY RESERVES THE RIGHT TO LIMIT THE CONTRACTOR'S WORK AND/OR LANE

CLOSURE HOURS AT ANY TIME DURING THE PROJECT DURATION FROM THOSE HOURS

IDENTIFIED WITHIN THESE DOCUMENTS. THE CONTRACTOR AGREES TO MAKE NO

CLAIM FOR ADDITIONAL COMPENSATION AS A RESULT OF THIS DECISION BY THE CITY.

HOWEVER, THE CONTRACTOR MAY BE ENTITLED TO AN EXTENSION OF TIME FOR SUCH

ACTS BY THE CITY, ONLY FOR THE NUMBER OF DAYS WHICH THE CITY DETERMINES

TO BE DUE TO SUCH ACTS. THE CONTRACTOR SHALL ABIDE BY THE WORK HOURS OR

MORE RESTRICTIVE HOURS IMPOSED BY APPROVED TEMPORARY TRAFFIC CONTROL

PLANS.

IF PREHISTORIC OR HISTORIC ARTIFACTS, SUCH AS POTTERY OR CERAMICS,

PROJECTILE POINTS, DUGOUT CANOES, METAL IMPLEMENTS, HISTORIC BUILDING

MATERIALS, OR ANY OTHER PHYSICAL REMAINS THAT COULD BE ASSOCIATED WITH

NATIVE AMERICAN, EARLY EUROPEAN, OR AMERICAN SETTLEMENT ARE ENCOUNTERED

AT ANY TIME IN THE PROJECT SITE AREA, THE PERMITTED PROJECT SHALL CEASE

ALL ACTIVITIES INVOLVING SUBSURFACE DISTURBANCE IN THE VICINITY OF THE

DISCOVERY. THE APPLICANT SHALL CONTACT THE FLORIDA DEPARTMENT OF STATE

DIVISION OF HISTORICAL RESOURCES, COMPLIANCE REVIEW SECTION AT (850)

245-6555. PROJECT ACTIVITIES SHALL NOT RESUME WITHOUT VERBAL AND/OR

WRITTEN AUTHORIZATION. IN THE EVENT THAT UNMARKED HUMAN REMAINS ARE

ENCOUNTERED DURING PERMITTED ACTIVITIES, ALL WORK SHALL STOP IMMEDIATELY,

AND THE PROPER AUTHORITIES NOTIFIED IN ACCORDANCE WITH SECTION 872.05,

FLORIDA STATUTES.

ROADWAY RECONSTRUCTION AND RIGHT-OF-WAY RESTORATION ON MEGINNIS ARM

ROAD SHALL BE IN ACCORDANCE WITH LEON COUNTY PUBLIC WORKS REQUIREMENTS.

CHARLATTE SURGE TANK SHALL BE DELIVERED TO PROJECT SITE BY CITY OF

TALLAHASSEE. CONTRACTOR SHALL PROVIDE CITY SEVEN (7) DAYS WRITTEN NOTICE

PRIOR TO THE OF REQUESTED DELIVERY DATE.

IA

SUGGESTED CONSTRUCTION SEQUENCE

I. CONDUCT PRE-CONSTRUCTION MEETING WITH CITY OF TALLAHASSEE, LEON COUNTY

DEPARTMENT OF ENVIROMENTAL SERVICES, AND LEON COUNTY PUBLIC WORKS.

2. INSTALL EROSION CONTROL FEATURES AND IMPLEMENT TRAFFIC CONTROL PLAN.

5. PERFORM SELECTIVE CLEARING AND GRUBBING AND TREE REMOVAL.

4. REMOVE EXISTING AIR RELEASE VAULT AND REMOVE EXISTING 16' FORCEMAIN.

5. CONSTRUCT 18' FORCEMAIN FROM 10+08 (VALVE) TO 16+75 (VALVE) INCLUDING

BY-PASS CONNECTION AND STUB OUT TO SURGE TANK. PERFORM TESTING ON NEW

FORCEMAIN.

6. INSTALL SODDING OF ALL DISTURBED AREAS IN MEGINNIS ARM RIGHT-OF-WAY.

7. CONSTRUCT CONCRETE PAD FOR SURGE TANK.

8. ESTABLISH BY-PASS PUMPING OPERATION USING EXIST. 18" FORCEMAIN AND EXIST.

BY-PASS CONNECTION.

9. REMOVE 18' FORCEMAIN AND THRUST BLOCKS IN CONFLICT WITH NEW 18' FORCEMAIN.

CONSTRUCT CONNECTIONS TO EXISTING FORCEMAIN AT 10+08 AND 16+75.

10. INSTALL SODDING OF ALL DISTURBED AREAS IN MEGINNIS ARM RIGHT-OF-WAY.

II. INSTALL SURGE TANK.

12. DEMOLISH CHEMICAL TANK CONCRETE PAD, REMOVE EXIST. 18' FORCEMAIN AND

THRUST BLOCKING WITHIN THE PUMP STATION SITE.

15. INSTALL SLUICE GATE STRUCTURE (SS-01) AND ASSOCIATED PIPE CONNECTIONS TO

EXISTING GRAVITY SEWER.

14. CONSTRUCT CONCRETE SLAB FOR CHEMICAL TANK.

15. CLEAN UP RIGHT-OF-WAY AND PERFORM MILLING AND FINAL PAVING OF MEGINNIS

ROAD. CONSTRUCT CONCRETE DITCH PAVEMENT, INSTALL SOD WITHIN

RIGHT-OF-WAY.

16. INSTALL SODDING IN PUMP STATION SITE.

17. INSTALL FENCING.

BYPASS OPERATIONS

BYPASS OPERATIONS WILL CONSIST OF TWO (2) PHASES, PHASE I WILL CONSIST OF CITY

TRUCKING OF SEWAGE TO ALLOW TIE-IN OF THE NEW FORCEMAIN TO THE EXISTING

FORCEMAIN AT STATION 10+05.98. PHASE II WILL CONSIST OF THE CONTRACTOR'S

BYPASS PUMPING OPERATION FOR THE COMPLETION OF ALL OTHER WORK INCLUDED IN

THE CONTRACT DOCUMENTS.

I. CONTRACTOR SHALL SUBMIT A BYPASS PLAN TO THE CITY WHICH MUST BE APPROVED

PRIOR TO CONTRACTOR'S NOTICE TO CITY UNDER NOTE 2.

2. CONTRACTOR SHALL NOTIFY THE CITY A MINIMUM OF 2 WEEKS PRIOR TO

ANTICIPATED BYPASS OPERATIONS.

5. CITY RESERVES THE RIGHT TO REQUIRE CONTRACTOR TO RESCHEDULE DUE TO

INCLEMENT WEATHER OR STAFF AVAILABILITY.

PHASE I (CITY TRUCKING)

I. CONTRACTOR'S WORK SHALL BE LIMITED TO II PM TO 6AM.

2. CITY SHALL COORDINATE AND BE RESPONSIBLE FOR BYPASS TRUCKING OPERATIONS.

5. CITY SHALL PUMP OUT OF MANHOLE SH54775 AND/OR ANOTHER UPSTREAM MANHOLE.

4. CONTRACTOR'S BYPASS OPERATION MUST BE SET UP AND APPROVED BY CITY PRIOR

TO COMMENCING BYPASS OPERATIONS AND SHUTTING DOWN THE PUMP STATION.

PHASE II (CONTRACTOR BYPASS PUMPING)

I. CONTRACTOR SHALL BE RESPONSIBLE FOR ALL ASPECTS OF THE BYPASS PUMP

OPERATIONS, INCLUDING SETUP, OPERATIONS, PUMPS, HOSES, FUEL, STAFF, AND ANY

OTHER COMPONENTS TO OPERATE AND MAINTAIN BYPASS OPERATIONS.

2. CONTRACTOR'S BYPASS PLAN SHALL INCLUDE AUTO-DIALER ALARMS TO NOTIFY THE

CONTRACTOR AND THE CITY OF HIGH-WATER CONDITIONS.

5.

4.

CONTRACTOR SHALL PROVIDE ONSITE STAFF AT ALL TIMES TO MONITOR THE PUMP

OPERATIONS.

THE CONTRACTOR SHALL PROVIDE A TOTAL OF THREE (3) PUMPS EACH CAPABLE

OF PUMPING 2,300 GPM AT 172 FEET OF HEAD (TDH). TWO PRIMARY PUMPS SHALL

BE CONNECTED FOR SERVICE. THE THIRD PUMP SHALL BE ONSITE AND READILY

AVAILABLE TO QUICKLY REPLACE ACTIVE PUMPS IN THE EVENT OF A FAILURE.

PAY ITEM NOTES

110-1-1 SELECTIVE CLEARING AND GRUBBING. PAY ITEM INCLUDES ALL CLEARING

NECESSARY FOR THE INSTALLATION OF PROPOSED FORCEMAIN, REMOVAL OF EXISTING

FORCEMAIN(S), AND MISCELLANEOUS CLEARING WITHIN THE PUMP STATION SITE THAT IS

NOT COVERED UNDER OTHER PAY ITEMS.

110-4-1 REMOVAL OF EXISTING CONCRETE AIR RELEASE VAULT. PAY ITEM INCLUDES ALL

LABOR AND MATERIALS FOR THE REMOVAL OF ALL PIPING AND APPURTENANCES WITHIN

THE EXISTING AIR VAULT, REMOVAL OF THE CONCRETE VAULT, DISPOSAL OF SURPLUS

MATERIALS, AND PROVIDING AND PLACING SELECT BACKFILL.

110-4-2 REMOVAL OF EXISTING CONCRETE THRUST RESTRAINTS. PAY ITEM INCLUDES ALL

LABOR AND MATERIAL NECESSARY TO REMOVE EXISTING BURIED CONCRETE THRUST

BLOCKS WITHIN THE PUMP STATION SITE. PAY ITEM INCLUDES REMOVAL, DISPOSABLE,

AND PROVIDING AND PLACING COMMON BACKFILL.

110-25 TREE REMOVAL. PAY ITEM INCLUDES ALL LABOR AND MATERIAL TO REMOVE TREE

AND TREE STUMP, DISPOSAL OF ALL DEBRIS, AND RESTORATION OF DISTURBED AREAS BY

THESE ACTIVIITIES.

APS-01 PLACE OUT OF SERVICE SANITARY SEWER MAIN (GROUT). PAY ITEM INCLUDES

CAPPING EXISTING FORCEMAIN TO REMAIN AND GROUTING ENTIRE LENGTH OF FORCEMAIN

TO REMAIN.

MHL-SPEC-0721 SANITARY MANHOLE (SLUICE GATE STRUCTURE). PAY ITEM INCLUDES ALL

LABOR AND MATERIALS TO FURNISH AND INSTALL THE SLUICE GATE STRUCTURE AND

STAINLESS STEEL SLUICE GATE. PAY ITEM INCLUDES ALL EXCAVATION, SHEETING,

SHORING, DEWATERING, ACCESS HATCH, MANHOLE LINING, AND BACKFILL FOR A

COMPLETE INSTALLATION.

GSM-02-18-20 DIP 18' DIP. PAY ITEM INCLUDES ALL LABOR AND MATERIALS TO CONNECT

THE SLUICE GATE STRUCTURE TO THE EXISTING GRAVITY SEWER PIPING ON BOTH SIDES

OF THE STRUCTURE. PAY ITEM INCLUDES ALL EXCAVATION, SHEETING, SHORING,

DEWATERING, COUPLINGS, AND BACKFILL FOR A COMPLETE INSTALLATION,

YP-16-SS STAINLESS STEEL SUCTION ASSEMBLY. PAY ITEM INCLUDES ALL LABOR AND

MATERIALS INCLUDING 16" 516 STAINLESS STEEL PIPING, 90° FITTINGS AND REDUCERS,

AND BLIND FLANGE. PAY ITEM ALSO INCLUDES PIPE RESTRAINTS AS SHOWN IN THE

PLANS AND BACKFILLING THE SUCTION ASSEMBLY IN FDOT CLASS I CONCRETE.

SFM-02-18-DIP - INCLUDES ALL LABOR, MATERIALS, EXCAVATION, SUITABLE BACKFILL,

FITTINGS, TRACER WIRE, AND TESTING. IN ADDITION, CONNECTION TO EXISTING

FORCEMAINS IS INCLUDED IN THE UNIT PRICE.

YP-18-DIP BYPASS CONNECTION ASSEMBLY. PAY ITEM INCLUDES ALL LABOR AND

MATERIALS INCLUDING 12' DUCTILE IRON PIPING, 90° FITTINGS AND REDUCERS, 12' PLUG

VALVE, 12' CHECK VALVE, 12"XIO' REDUCER, 10' BLIND FLANGE WITH 1/4" BALL VALVE, PIPE

SUPPORTS, AND PIPE LININGS AND COATINGS IN ACCORDANCE WITH THE STANDARD

SPECIFICATIONS.

TANK-I SURGE TANK INSTALLATION. PAY ITEM INCLUDES ALL LABOR AND MATERIALS TO

INSTALL SURGE TANK IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS. SURGE

TANK SHALL BE PROVIDED BY CITY AND SHALL BE DELIVERED TO THE SITE BY THE CITY.

CONTRACTOR SHALL PROVIDE CITY SEVEN (7) DAYS WRITTEN NOTICE PRIOR TO THE

REQUESTED DELIVERY DATE.

YP-12-DIP 12" DIP PIPING CONNECTION. PAY ITEM INCLUDES ALL LABOR AND MATERIALS

TO CONNECT THE SURGE TANK TO THE PROPOSED FORCEMAIN. PAY ITEM INCLUDES ALL

12" DUCTILE IRON PIPING, 12' FITTINGS, 12' PLUG VALVE, 2' AIR VALVE, PIPE SUPPORTS, AND PIPE LININGS AND COATINGS IN ACCORDANCE WITH THE STANDARD SPECIFICATIONS.

YP-5-DIP 5' DIP DRAIN CONNECTION. PAY ITEM INCLUDES ALL LABOR AND MATERIALS TO

INSTALL DRAIN PIPING FROM SURGE TANK TO EXISTING SEWER MANHOLE. PAY ITEM

INCLUDES ALL DUCTILE IRON PIPING, FITTINGS, BALL VALVE, PIPE SUPPORTS, AND PIPE

LININGS AND COATINGS IN ACCORDANCE WITH THE STANDARD SPECIFICATIONS.

522-12 AND 522-15 CONCRETE FOUNDATIONS. PAY ITEM INCLUDES ALL LABOR AND

MATERIALS FOR THE COMPLETE FOUNDATION CONSTRUCTION IN ACCORDANCE WITH THE

PLANS. PAY ITEM INCLUDES ALL EXCAVATION, COMPACTION, TESTING, SITE PREPARATION,

AND ASSOCIATED GRADING FOR THE CONSTRUCTION OF THE FOUNDATIONS.

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