DESIGN ENGINEERING SERVICES FOR ESCALON-BELLOTA ROAD BRIDGE (29C-051) OVER MORMON SLOUGH REPLACEMENT PROJECT ? PHASE II (SJCDPW-RFP-21-05) Addendum 2

Agency: San Joaquin County
State: California
Type of Government: State & Local
NAICS Category:
  • 237310 - Highway, Street, and Bridge Construction
  • 541330 - Engineering Services
Posted Date: Nov 19, 2021
Due Date: Dec 3, 2021
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DESIGN ENGINEERING SERVICES FOR ESCALON-BELLOTA ROAD BRIDGE (29C-051) OVER MORMON SLOUGH REPLACEMENT PROJECT – PHASE II (SJCDPW-RFP-21-05)

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Department of Public Works
Kris Balaji, Director of Public Works
Fritz Buchman, Deputy Director/Development
David Tolliver, Deputy Director/Operations
Najee Zarif, Deputy Director/Engineering
Kristi Rhea, Business Administrator
November 19, 2021
REQUEST FOR PROPOSALS – SJCDPW-RFP-21-05
SUBJECT:
DESIGN ENGINEERING SERVICES FOR ESCALON-BELLOTA ROAD BRIDGE (29C-
051) OVER MORMON SLOUGH REPLACEMENT PROJECT – PHASE II
REQUEST FOR PROPOSALS – ADDENDUM No. 2
Addendum No. 2 provides changes to Section – Project Overview - paragraph 2 on page 2 of 17 of
EXHIBIT A – Preliminary Scope of Work. Information shown on the enclosed form is essential for
consultants responding to SJCDPW-RFP-21-05.
Please verify that you have considered contents of the Addendum No. 2 by signing and including the
enclosed form with your submittal, due no later than 4:00 p.m. on December 3, 2021.
Sincerely,
NHAN TRAN
Management Analyst II
Z:\CONSULTANTS\BRIDGE ENGINEERING\220099 Escalon Bellota Rd Bridge 29C-051 Replacement\Phase II\SJCDPW-RFP-21-05
Addendum No. 2.doc
Attachment
1810 East Hazelton Avenue | Stockton, California 95205 | T 209 468 3000 | F 209 468 2999
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-2-
REQUEST FOR PROPOSALS - SJCDPW-RFP-21-05
ADDENDUM No. 2 – November 19, 2021
Project Overview (Paragraph 2 on page 2 of 17 of Exhibit A – Preliminary Scope of Work)
The County will complete the project in three phases. Phase I of the project concluded with
the completion of the Type Selection Memo evaluating alignment and structure replacement
options. The Type Selection Memo recommended Alternative 3A 1, replacement of the
entire existing structure with a new cast-in-place, prestressed box girder bridge on a new
alignment to the west of the existing bridge. A geomorphology study was completed to
predict the stream migration behavior and place the bridge in the appropriate location. The
report determined that without a permanent mitigation at the south bank, the lateral
migration could move from 80’ to 100’ in the design life of the new bridge. In December
2020, the County submitted the memo to Caltrans for review and concurrence. Caltrans
responded with a list of additional items that need to be addressed in the final Type
Selection Report before it is approved. Caltrans comments include a evaluating a
hardscaping option on the south bank, possibly designing a two-span structure with a hinged
abutment on the south end to allow for future lengthening of the structure, and including an
evaluation of replacing the structure in the current alignment.
I have read and considered this Addendum in preparing the Statement of Qualifications and Technical
Proposals in response to SJCDPW-RFP-21-05.
Signed
Name
Title
Date:
Consulting Firm
______

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