HomeMy WebLinkAboutAdden BCEDAR RIVER TRESTLE BRIDGE REPAIRS BID SET: CAG-20-006
ADDENDUM B 21 JANUARY 2019
Addendum B
ADDENDUM – B
TO THE CONTRACT DOCUMENTS FOR
City of Renton
CEDAR RIVER TRESTLE BRIDGE REPAIRS
Project Issued: January 8, 2020
Addendum B Issued: January 21, 2020
Bid Opening Date: January 28, 2020
To: All Holders of Bid/Contract Documents:
This addendum forms part of the Contract Documents and modifies the original Plans and
Specifications, for which proposals are due on the date and time above.
Acknowledge receipt of this addendum on “Addenda Received” of the Bid Documents in the
Contract Documents. Failure to do so might subject the bidder to disqualification.
This addendum shall modify/clarify the Contract Documents as follows:
Item No. 1 – MEMORANDUM #1: BIDDER QUESTIONS AND RESPONSES
Item No. 2 – 01 11 30 Hazardous Materials
1. Replace subsection 1.5 A. with the following:
1.5 HAZARDOUS MATERIAL
A. The Contractor shall bring to the attention of the Owner any material suspected
of being hazardous which is encountered during execution of the Work. The
Contractor shall arrange for hazardous material testing to determine if the
material is hazardous. If the material is found to be hazardous the Contractor
shall immediately notify the Owner. With the Owner’s approval, the Contractor
shall initiate a construction modification procedure for the abatement of the
hazardous material.
COMMUNITY SERVICES
DEPARTMENT
M E M O R A N D U M #1
DATE: January 21, 2020
TO: Potential Bidders
CC: Garth Nelson, WSP
FROM: Betsy Severtsen, Capital Projects Coordinator
SUBJECT: Cedar River Trestle Bridge Repairs – Bidder Questions & Responses
1. Bidder’s Question: (Tali Talakai, Talakai Construction LLC):
Is there any lead on the portal metal?
Response: (Garth Nelson, WSP):
There has not been testing of the materials at the site. Based on the age of the
bridge and assumption that it has not been repainted since it was originally
installed, there is a probability that the paint may contain lead. Please see
Addendum B, Item No. 2 for modifications to Section 01 11 30.
2. Bidder’s Question (Gary Knesevitch, Danneko Construction):
During the walk‐through it was mentioned that all shoring would require a
submittal drawing stamped by a licensed engineer. Would you please expound
on that? Also, please reference the specification Section # and/or Drawing sheet
# for which this applies and is stated.
Response: (Garth Nelson, WSP):
Per the Technical Specifications 02 41 00, section 1.07, C states : A temporary
shoring plan for the timber trestle post replacement which shall be stamped and
signed by a Professional Engineer licensed in the state of Washington.” Also on
G‐2, General 3 states: “PROVIDE TEMPORARY SUPPORT TO EXISTING
STRUCTURES AS REQUIRED TO MAINTAIN STABILITY, AVOID UNDUE STRESS,
AND PREVENT DAMAGE PRIOR TO AND DURING REPAIR WORK. SUBMIT
DETAILS FOR TEMPORARY SUPPORT TO THE CITY FOR REVIEW AND APPROVAL.”
3. Bidder’s Question (Jenny Knutson, Roglins, Inc.):
Are the Certification of Compliance with Wage Payment Statues and the Non‐
Collusion, Anti‐Trust, and Minimum Wage Form due with the bid or after?
Response: (Betsy Severtsen, City of Renton):
The referenced form should be submitted with the bid.
4. Bidder’s Question (Jeff Nimrick, Massan):
Regarding: 2.02 STRUCTURAL TIMBER, A. Provide Douglas Fir‐Larch, Grade
Dense No. 1 conforming to WCLIB rules. Will SSTR grade be acceptable as mills
do not pull a #1 Dense? SSTR is a higher grade.
Cedar River Trestle Bridge Repairs
Page 2 of 2
January 21, 2020
Response: (Garth Nelson, WSP):
Select Structural lumber grade will be an acceptable substitute for Dense No. 1.
5. Bidder’s Question (Jeff Nimrick, Massan):
Regarding: 2.02 STRUCTURAL TIMBER, A. Provide Douglas Fir‐Larch, Grade
Dense No. 1 conforming to WCLIB rules. I am also hearing that S4S (surface 4
sides) finish on that size of material is very difficult, would rough sawn be
acceptable?
Response: (Garth Nelson, WSP):
Per the Technical Specification Section 06 10 00, 2.02, B: “Surface timbers as
noted on the Drawings. If not noted, surface four sides.” It would be
acceptable for the posts to be rough sawn, if they match the existing post
dimensions. All stringers will be required to be S2E and match the existing
stringer height and width. There shall be uniform and flat surfaces at all
bearing/connection points for the timber posts and stringers.
6. Bidder’s Question (Gary Knesevitch, Danneko Construction):
Please confirm or clarify the following: only the timber facing boards to be
replaced (See Drawing 1, Sheet S7.) will require new lag bolts and washers. All
remaining facing boards will not require new hardware.
Response: (Garth Nelson, WSP):
We have no objection to reuse of the existing hardware on the existing facing
boards that will be reinstalled, as long as the existing hardware is in good and
serviceable condition. Prior to reinstallation a representative of the City will
inspect the hardware prior to reuse.
7. Bidder’s Question (Scott Darrington, Combined Construction, Inc.):
On page S‐4 of the plans, there is a note on Drawing 2 – G‐4 to “Replace Timber”
but there are no details for the timber. Where can I find the size?
Response: (Garth Nelson, WSP):
That timber is a 12x12 timber to be replaced. See the North Bearing on the
same detail for the typical callout.
8. Bidder’s Question (Gary Knesevitch, Danneko Construction):
Do the four 27+ foot long stringers need to be replaced as one continuous
length or can we replace with stringers that span support‐to‐support (i.e. ~13
foot long)?
Response: (Garth Nelson, WSP):
We have no objection to replacement of the stringers as simple spans (support‐
to‐support). All lengths shall be field verified and match the length of the
stringer that they are replacing.
End of Questions.