RFB_7945_ADDENDUM_1.pdf
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- Attached to
- Upper Havemeyer Field Drainage Improvements
- Solicitation number
- 7945
- Issued by
- Fairfield County, Connecticut
About this file
This Addendum #1 to Request for Bid #7945, issued by the Town of Greenwich Purchasing Department in Connecticut, provides clarifications and updates to the construction project scheduling requirements for the Upper Havemeyer Field Drainage Improvements project. The addendum supersedes the original Section 01 32 16A - Construction Project Scheduling specification with an updated version requiring contractors to submit a preliminary Gantt schedule within seven days of contract award covering all work from project start through completion. The schedule must utilize Microsoft Project or similar software and include a horizontal bar chart format with separate bars for each major work portion, identifying the first work day of each week. Key scheduling requirements include a weather days allowance activity positioned immediately prior to the substantial completion milestone, calculated using the formula of contract time in calendar days multiplied by 7 divided by 365 days, with a minimum allowance rounded to the nearest whole number. The contractor bears full responsibility for determining the appropriate number of weather delay days based on anticipated weather conditions and project work nature.
The specification mandates monthly schedule revisions and updates whenever actual schedules for significant items vary more than seven days from proposed schedules, with revised construction schedules required for each Application for Payment. Contractors must submit four copies of the Construction Schedule to the Construction Administrator and distribute copies to all relevant parties including the Architect, Owner, Subcontractors, and suppliers. The schedule must identify activities by specification section numbers, show accumulated completion percentages monthly, provide a separate submittal schedule for shop drawings and product data with decision dates for finish selections, indicate delivery dates for owner-furnished products, and clearly mark the critical path with original baseline indicated. A narrative report must accompany each schedule revision defining problem areas, anticipated delays, schedule impacts, and proposed corrective actions with their anticipated effects on the project timeline.
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Text version
March 24, 2026
TOWN OF
GREENWICH
Purchasing Department (203) 622-7881 Fax: (203) 622-7776
Town Hall• 101 Field Point Road• Greenwich, CT 06830
** ADDENDUM #1 **
REQUEST FOR BID #7945 DEADLINE: 4/07/2026 AT 11:00 AM
UPPER HA VEMEYER FIELD DRAINAGE IMPROVEMENTS
The following is a clarification to RFB #7945:
Please see Attachment A for the updated version of Section O 1 32 16A - Construction Project Scheduling.
ALL OTHER SPECIFICATIONS, TERMS, AND CONDITIONS OF THIS RFB REMAIN
UNCHANGED.
Daniel Centofanti Procurement Specialist
An Affirmative Action/Equal Opportunity Employer, M/F/H
08/11/2019 01 32 16-1
SECTION 01 32 16A
CONSTRUCTION PROJECT SCHEDULING
PART 1- GENERAL
1.01 RELATED DOCUMENTS:
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section.
1.02 SUMMARY:
A. This Section includes administrative and procedural requirements for the preparation, submittal, and updating of the Contractor’s construction schedules and reporting progress of the Work.
a. Refer to the General Conditions and the Agreement for definitions and specific dates of Contract Time.
B. This Section includes the following:
a. Format
b. Content
c. Revisions to schedules
d. Submittals
e. Distribution
C. Related Sections: The following Sections contain requirements that relate to this Section:
a. Refer to Town procurement specification for the following:
i. Progress Payment Procedures and requirements for submitting Schedule of Values and Application for Payments.
b. Section 01 31 19 Construction Meetings
c. Section 01 33 00 Submittals specifies requirements for submitting the Submittal
Schedule.
1.03 DEFINITIONS:
A. Construction Schedule: A method of planning and scheduling a construction project utilizing a horizontal bar chart with a separate bar for each major portion of the Work or operation to make the schedule an effective tool for planning and monitoring the progress of the work.
1.04 QUALITY ASSURANCE:
A. The Contractor's Consultant: Retain a consultant to provide planning, evaluating, and reporting by CPM scheduling.
a. In-House Option: The Owner may waive the requirement to retain a consultant if the Contractor can demonstrate that:
i. The Contractor has the computer equipment required to produce construction schedules.
Attachment A
RFB #7945 EXHIBIT H
Addendum #1
08/11/2019 01 32 16-2
ii. The Contractor employs skilled personnel with experience in construction scheduling and reporting techniques.
b. Program: Use Microsoft Project latest version or similar program capable of providing a schedule per the standards below.
c. Standards: Comply with procedures contained in AGC's "Construction Planning & Scheduling."
1.05 PRELIMINARY SCHEDULE:
A. Preliminary Gantt schedule is to be prepared by the Contractor and submitted to the Construction Administrator within seven (7) days of award of contract. This schedule is to cover all items of Work from the start of the project up to the completion of the project. This schedule must be revised when the actual schedule of significant items varies more than one week from the proposed schedule.
1.06 CONSTRUCTION SCHEDULE FORMAT:
a. Format: Utilize a horizontal bar chart (Gantt) with a separate bar for each major portion of the Work or operation, identifying first work day of each week.
b. Program: Use Microsoft Project, latest version or similar project scheduling software.
c. Sequence of Listings: Utilize the Table of Contents of this Project Manual and the chronological order of the start of each item of work.
d. Scale and Spacing: Provide space for notations and revisions.
e. Sheet Size: To be coordinated with Construction Administrator.
f. Weather Days Allowance: The Contractor shall include as a separate identifiable activity on the Critical Path of the Construction Schedule, and activity labeled "Weather Days Allowance." Insert this activity immediately prior to the substantial completion milestone.
i. The Contractor shall be fully responsible for determining the number of weather delay days to be included in the Construction Schedule. This determination shall be based on the normal anticipated weather for the project location and the nature of the project work. The Construction Schedule shall be based on the contractor’s determined weather delay allowance. The weather delay activity shall be included in the construction schedule immediately prior to the Substantial Completion milestone.
ii. The minimal allowed duration of the Weather Days Allowance shall be calculated as follows (decimals rounded to nearest whole number):
Contract Time (Calendar Days) multiplied by 7 equals Weather Days Allowance 365 (Calendar Days)
iii. The Contractor shall insert an activity in the Critical Path of the
Construction Schedule to reflect weather day occurrences when weather days are experienced and accepted by the Owner. Identify this activity as a weather delay.
iv. The Contractor shall reduce duration of Weather Days Allowance activity as weather delays are experienced and inserted into the schedule.
Remaining weather days in Weather Day Allowance at completion of
08/11/2019 01 32 16-3 project is considered float. Weather delay, when justified, are considered allowable, non compensable.
1.07 CONTENT:
A. Show complete sequence of construction by activity, with dates beginning and completion of each element of construction.
B. Identify each item by specification section numbers.
C. Identify work of separate phases and other logically grouped activities.
D. Show accumulated percentages of completion of each item, and total percentage of
Work completed, as of the first day of each month.
E. Provide separate schedule of submittal dates for shop drawings, product data, and samples, Owner/Agency furnished products and any products identified as under Allowances, and dates reviewed submittals will be required from Architect/Engineer.
Indicate decision dates for selection of finishes.
F. Indicate delivery dates for Owner/Agency furnished products and any products identified as under Allowances.
G. Indicate critical path with original baseline indicated.
H. Coordinate content with Schedule of Values specified in the Town’s procurement specifications.
1.08 SUBMITTALS AND REVISIONS TO SCHEDULES
A. An initial bar graph schedule is to be prepared by the Contractor and submitted to the Construction Administrator. Refer to Article 1.5.
B. Indicate progress of each activity to date of submittal, and projected completion date of each activity.
C. Identify activities modified since previous submittal, major changes in scope, and other identifiable changes.
D. Provide narrative report to define problem areas, anticipated delays, and impact on Schedule. Report corrective action taken, or proposed, and its effect.
E. Schedules must be revised monthly and when the actual schedule of significant items varies more than seven (7) days from the proposed schedule.
F. Submit revised Construction Schedules for each Application for Payment.
G. Submit four (4) copies of the Construction Schedule to the Construction Administrator.
1.08 DISTRIBUTION
A. Distribute copies of the Construction Schedules to Construction Administrator, Architect, Owner, Subcontractors, suppliers, and other concerned parties.
B. Instruct recipients to promptly report, in writing, problem anticipated by projections indicated in schedules.
PART 2 – PRODUCTS (Not Applicable) PART 3 – EXECUTION (Not Applicable)
END OF SECTION
P:\CT\Greenwich CT\Greenwich- Upper Havemeyer\Specifications\01 32 16A Construction Project Scheduling.docx
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