Addendum #2 22334 RRRA Ped Bridge.pdf

DTMB-0414 (Rev 10/22)

DEPARTMENT OF TECHNOLOGY, MANAGEMENT AND

BUDGET

State Facilities Administration Design and Construction Division

CONSTRUCTION BID ADDENDUM NO. 2

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

10/18/2024

PROJECT NAME

MDNR, Rifle River Recreation Area, Pedestrian Bridge Replacement

FILE NUMBER

751.22334.CTS

PROFESSIONAL

Erik Cronk, C2AE

PROJECT DIRECTOR

Chris Schanbeck

BID OPENING DATE:

10/23/2024

ADDENDUM ITEMS:

SEE ATTACHED ADDENDUM ITEMS.

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: Erik Cronk, C2AE DATE: 10/18/2024

APPROVED BY:

PROJECT DIRECTOR: Chris Schanbeck DATE: 10/18/2024

814 S. Otsego Ave. Suite B Gaylord, MI 49735

989.732.8131 www.c2ae.com

Addendum #2

The following changes, revisions, modifications, etc. shall be incorporated into the contract documents, specifications, and plans.

BID SUMMARY

A2.1 The Bidder shall acknowledge receipt of Addenda #2 by indicating so in the spaces provided on the Bid Summary.

DRAWINGS

A2.2 Refer to Sheet C-005 (reissued):

Add approximate hand auger/soil boring locations. Add note regarding access gate to vicinity map and key.

Revise keynote regarding bridge foundation. Add note and define area for contractor staging.

CLARIFICATIONS

A2.3 Q: TrueNorth Steel is interested in providing a quote to the bidding prime contractors, for the 6x100 prefabricated steel pedestrian truss bridge structure. We respectfully request approval to be considered a qualified and pre-approved bridge manufacturer for this project.

A: Substitution request is approved.

A2.4 Q: Borings are on the specs and they indicate they are on the plans but after reviewing the sheets; cannot find where the borings were taken. Can callouts be added indicating where these were taken from?

A: The soil boring was taken about 5' east of the east side of the existing bridge. The hand auger was taken about 5' west of the west side of the existing bridge.

Project No.: 22-0313 Date: October 18, 2024

Project: Rifle River Recreation Area Pedestrian Bridge Replacement Michigan Department of Natural Resources DTMB Project No. 751/22334.CTS

A/E Firm: C2AE

Project Manager: Erik Cronk

Owner: MI Dept. of Technology, Management & Budget State Facilities Administration Design and Construction Division 3111 W. St. Joseph Street Lansing, Michigan 48917

Addendum 2 751/22334.CTS Rifle River Pedestrian Bridge Replacement

A2.5 Q: Pioneer Bridges Substitution Request.

A: Substitution request is approved.

A2.6 Q: Checked several sources on the Corten Channel. The best and closest located is a 8 X 18.7 Channel. MC 8 x

21.4 isn't available since COVID. Is there an alternative to the required MC 8x21.4 Channel.

A: C8x18.7 channels are an acceptable substitution, or the plate and channel pier can be revised to a Corten HP12 section.

A2.7 Q: Is copper naphthalene treatment of the wood acceptable?

A: Yes, it is acceptable.

A2.8 Q: Is fiber reinforced plastic or fiberglass grating acceptable in place of composite decking?

A: No

A2.9 Q: For the finish on the weathered steel: we would like it to be sandblasted to a SP7 surface with highly visible flecks. Is that acceptable?

A: Surface preparation is not required. Brush cleaning of loose rust scale is acceptable.

A2.10 Q: BCS Fabrication requests preapproval as prefabricated bridge manufacturer.

A: Certified Bridge Fabricator - Intermediate and Fracture Control Endorsement required. Not approved unless the certification is provided.

A2.11 Q: The spec SP-3 in the documents calls for the bridge to be weathering steel (section b.3) and also suggests that it will be galvanized (Section 3.L). Can you please clarify the material and the finish on this bridge?

A: Bridge to be weathered steel (Corten). Disregard the note in Section 3.L regarding drainage holes if it is hot-dip galvanized.

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REVISIONS

REV DESCRIPTION DATE

C-005

22-0313

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SITE PROTECTION KEY

SITE REMOVAL KEY

SESC/DEMOLITION LEGEND

SOIL EROSION CONTROL MEASURES KEY

NOTESDETAILKEY

20-SEPT-2024

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SEQUENCE OF CONSTRUCTION:

SOIL EROSION SEDIMENTATION CONTROL NOTES:

·VICINITY MAP

VICINITY MAP KEY

ADDENDUM 02 18-OCT-2024A02

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