NATICK-607420-136650-A-3.pdf
PDF 349 KB Posted
- Attached to
- 607420 NATICK FAP No. HIP(NGB)-003S(965)X Bridge Replacement, N-03-012, Boden Lane over CSX/MBTA
- Solicitation number
- BD-27-1030-0H100-0H002-133213
- Issued by
- Middlesex County, Massachusetts
About this file
This is Addendum No. 3 to the contract documents for the Massachusetts Department of Transportation (MassDOT) regarding the Boden Lane Bridge Replacement project in Natick (Federal Aid Project No. HIP(NGB)-003S(965)X, N-03-012). The addendum addresses questions and responses from Commonwealth Scaffold regarding temporary shielding requirements for the bridge replacement work over CSX/MBTA railroad infrastructure. The proposal opening date is Tuesday, October 27, 2026, at 2:00 p.m. Bidders must acknowledge Addendum No. 3 in their Expedite Proposal file prior to bid submission. The addendum clarifies that shield extent and design loads shall comply with MBTA requirements and project Special Provisions to protect the railroad from debris during construction, with support locations to be determined by the Contractor on the Shielding System plan. The shielding design must maintain existing vertical clearance under the bridge and required horizontal clearance as determined by the MBTA for abutment demolition and construction activities.
The addendum specifies that shielding installation work windows, flagging requirements, foundation restrictions, and reset phases are subject to MBTA approval through a Railroad Access Agreement to be obtained by the Contractor. Shielding design shall be prepared by the Contractor and submitted to MassDOT for review and approval by the MBTA, Keolis, the Engineer, and MassDOT. The overall project is valued at $12.898 million and is a federally-assisted project subject to prevailing wage rates, Title VI Civil Rights Act compliance, and Executive Order 11246 minority and female participation goals. A Proposal Guaranty equal to 5% of the bid value is required. The contract includes price adjustment provisions for hot mix asphalt, Portland cement, diesel fuel, gasoline, and structural steel.
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| A00844-607420.pdf | ||
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| 607420 - Bid Tabulations.pdf | ||
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| 607420 Bid Items List.txt | TXT text file | |
| A00812-607420.pdf | ||
| NATICK-607420-136650-A-1.pdf | ||
| A00875-607420.pdf | ||
| 607420 - Plan Holders List 10-26-2026.pdf | ||
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| A00802-607420.pdf | ||
| 607420 - Notice to Contractors.pdf | ||
| A00801-607420.pdf | ||
| Link to Bid Opening 10-27-2026~1.pdf | ||
| A00807-607420.pdf | ||
| BIDS OPENED - Tuesday - October 27-2026~3.pdf | ||
| A00820-607420.pdf | ||
| A00815-607420.pdf | ||
| 607420 - Plan Holders List 10-13-2026.pdf | ||
| NATICK-607420-136650-A-2.pdf | ||
| A00808-607420.pdf |
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Text version
Ten Park Plaza, Suite 4160, Boston, MA 02116 Tel: 857-368-4636, TTY: 857-368-0655 mass.gov/massdot
October 26, 2026 607420-136650
ADDENDUM NO. 3
To Prospective Bidders and Others on:
NATICK
Federal Aid Project No. HIP(NGB)-003S(965)X
Bridge Replacement, N-03-012, Boden Lane over CSX/MBTA
THIS PROPOSAL TO BE OPENED AND READ: TUESDAY, OCTOBER 27, 2026, at 2:00 P.M.
Transmitting revisions to the Contract Documents as follows:
QUESTIONS AND RESPONSES: 1 page.
Please take note of the above and acknowledge Addendum No. 3 in your Expedite Proposal file before submitting your bid.
Very truly yours, Eric M. Cardone, P.E.
Construction Contracts Engineer
JPB
cc: Christoper Cameron, Project Manager
For
THIS PAGE INTENTIONALLY LEFT BLANK
NATICK
Federal Aid Project No. HIP(NGB)-003S(965)X
Bridge Replacement, N-03-012, Boden Lane over CSX/MBTA (607420-136650)
Questions and Responses Addendum No. 3, October 26, 2026
Commonwealth Scaffold e-mail dated October 26, 2026.
Question 4.) For Item 994.01, what shield extent, design loads, support locations and rail-clearance envelope govern the temporary shielding?
Response 4.) Shield extent and design loads shall be in accordance with the MBTA requirements and the project Special Provisions as necessary to protect the railroad from debris throughout construction. Support locations shall be determined and specified by the Contractor on the Shielding System plan. The shielding will be designed to not reduce the existing vertical clearance under the bridge and maintain the required horizontal clearance as determined by the MBTA for abutment demolition and abutment construction.
Question 5.) What railroad work windows/flagging, foundation restrictions and reset phases apply, and who coordinates shielding design and construction?
Response 5.) Shielding installation work windows, flagging requirements, foundation restrictions and reset phases shall be subject to approval by the MBTA in the Railroad Access Agreement to be obtained by the Contractor. Shielding design shall be prepared by the Contractor and submitted to MassDOT for review and approval by the MBTA, Keolis, the Engineer and MassDOT.
| NATICK-607420-136650-A-3 |
| ADDENDUM NO. 3 |
Questions and Responses 607420 Add #3
| 2026-10-26T12:36:16-0400 | |
| Haval Abdulrahman |
File details come from the government source that posted it. Updated .