838660 Silver Lake Addendum 1 with Attahcment 04 14 2023.pdf

DTMB-0414 (Rev 12/17)

DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND BUDGET

State Facilities Administration Design and Construction Division

CONSTRUCTION BID ADDENDUM NO. 1

This form identifies an Addendum to Bidding Documents, and incorporates interpretations or clarifications, modifications, acceptance of proposed “or equal” materials, and other information into the Bidding Documents. Addenda will be numbered by the Professional and distributed through www.michigan.gov/SIGMAVSS as an attachment.

TO:

ALL BIDDERS

DATE ISSUED

4/14/2023

PROJECT NAME

Silver Lake Grocery 11100 Cedar Dr., Pinckney MI 48169

FILE NUMBER

761.19136.SAR

PROFESSIONAL

Fleis & VandenBrink

PROJECT DIRECTOR

Sadi Rayyan, PE

BID OPENING DATE:

4/19/2023

ADDENDUM ITEMS:

Q: Can you provide limits of acceleration and vibration monitoring location?

A: Refer to construction sequence in Soils & Structures secant wall design document, and Section 01010 General Information.

Q: What tie frame is required for background vibration monitoring?

A: As above.

Q: Is vibration monitoring required for all site activities or only secant wall installation work?

A: Structural monitoring is required for all earthwork activities. All monitoring equipment will be installed before pre-construction videos and this equipment will be visible in pre-construction videos.

Q: Will remote monitoring and alerts be required for vibration exceedances?

A: No. Daily structural monitoring surveying shall be completed and reported to superintendent and professional.

Q: Will a licensed survey be required for all settlement monitoring?

A: Refer to construction sequence in Soils & Structures secant wall design document, and Section 01010 General Information.

Q: What is the frequency of settlement monitoring?

A: Daily.

Q: Is the contract to include the cost of both the Helical Pile tie back and the braced wall in the bid item? Would you consider adding the braced option as an additional pay item?

A: No, the braced option is not included.

Q: Can you provide spacing requirements for the earth anchors?

A: 8’.

Q: Are transport vehicles (gravel trains) allowed to use the roads in the residential area West of the site (Cedar Dr, Anne St & Thumm Rd) for turning/looping around? If yes, then clarify if the ‘Asphalt Road Surface Resurface’ will be required if existing residential area road asphalt surface damaged?

A: No – anything west of project site must remain clear and open for residential traffic.

Q: Clarify if a Permit also is required from Livingston County for the road closure and reroute?

A: If one is required, provisionary allowance will be used for cost of permit application.

Q: In addition to the 8’ chain-link fencing and ‘Road Closure’ signage, clarify what is required for barricading (Concrete barricades?)

the open excavation in the roadway to prevent passenger vehicles from falling into the excavation?

A: Site safety is the responsibility of the contractor – concrete barricades may be used but are not required.

Q: Base Bid Item No. 4: Clarify if the Time-Lapse Imagery also shall be completed by a third party subcontractor?

A: Yes, third-party subcontractor per Section 01 71 23.16.

Q: Base Bid Item No. 9: Secant Wall 90 lnft, Measurement & Payment clarify ‘removal’ to a minimum 3 feet below grade.

A: Refer to Soils & Structures secant wall design document.

Q: Clarify the approximate surface area of the Approximate Excavation Extent? i.e., 700 square yards (Base Bid Item No. 15) plus the triangle shaped ‘Landscape’ area.

A: Refer to Figures 1 & 2 in Drawings for approximate extent of excavation.

Q: Base Bid Item No. 19 Site Restoration and Landscaping: Clarify if the monitoring wells and vapor monitoring points within the excavation area shall be replaced?

A: No replacement.

Q: Clarify if OSHA Hazwoper Training & Certification is required for onsite personnel performing: surveying, utility relocating, pre & post-construction video, installation of secant wall, density testing & asphalt paving?

A: Only for personnel coming in direct contact with native subsurface soils or groundwater.

Q: Part 2 of the Specification Docs shows ‘Soldier Pile and Lagging Wall’. I assume that is a typo error?

A: Correct, typo error.

Q: Is Builder’s Risk Insurance required?

A: Yes, per DTMB general conditions.

Q: I want to clarify that the project requires a secant drilled pile and not an augercast pile, can you clarify that the only acceptable ERS wall is a secant wall and not one that is drilled by augercast methods?

A: Either method of secant wall installation is acceptable.

Q: See attached page from the Table of Contents. The list of permits shows County Road Commission permit. However, I cannot find the permit in the specs Parts 1-5? Other permit application forms are included, but I can’t find road commission.

A: Washtenaw County Road Commission permits can be found here: https://www.wcroads.org/permits/permit-applications/right-way-permit-applications/

Q: So none of the required permits have been completed? Only copies of blank application forms? The successful contractor is responsible for all permit applications?

A: Yes to all.

Q: Would you be able to send me the notes after the meeting? Are there any general contractors bidding the project?

A: Notes are not provided – a list of companies present at bid walk is included with Addendum 1.

ACKNOWLEDGEMENT: This Addendum must be acknowledged by the Bidder in the space provided in the Bid Summary and Bid Form. Failing to acknowledge Addenda may be cause for the Bid to be rejected. Addenda will become part of the Contract Documents.

PROFESSIONAL: DATE: 4/14/2023

APPROVED BY:

PROJECT DIRECTOR: DATE: Click to enter date