HomeMy WebLinkAboutUtilities 2015-03-24 Item 2A - Contract Supplement #1 - CBD Sanitary Sewer Rehabilitation with CHS EngineersCity of Tukwila
Jim Haggerton, Mayor
TO: Mayor Haggerton
Utilities Committee
FROM: Bob Giberson, Public Works Director `'tf
BY: Mike Cusick, Senior Program Manager
DATE: March 20, 2015
SUBJECT: CBD Sanitary Sewer Rehabilitation Project
Project No. 91140203, Contract No. 14-152
Supplemental Agreement No. 1
ISSUE
Approve Supplemental Agreement No. 1 with CHS Engineers, LLC (CHS) to perform
construction management services for the CBD Sanitary Sewer Rehabilitation Project
On March 11, 2013, City staff received a call from a business owner on Andover Park East
reporting sewage coming up in the parking lot. Upon inspection, staff discovered that the 12-
inch pipe between Andover Park East and Andover Park West was full of sewage and not
flowing. A sewer break was discovered and a bypass pumping system was set up until a full
repair could be designed and constructed.
On October 15, 2014, R.L. Alia Company (Alia) was given a Notice to Proceed for the sewer
repair and CHS was contracted to provide construction management. CHS' construction
management fee was $36,317.00, and any contract under $40,000 does not require Council
approval.
ANALYSIS
Due to scheduling issues by Alia, the project has taken longer than anticipated to complete.
CHS is therefore requesting additional time for construction management.
FINANCIAL IMPACT
Supplement No. 1 with CHS is proposed in the amount of $10,000.00, which is reasonable for
the scope of work required. The additional funds required to complete the project are budgeted
in the 2015 Construction Management of the CBD Sanitary Sewer Rehabilitation Project.
Consultant
Agreement Budget
CHS Original Contract $36,317.00 $120,000.00
Supplement No. 10,000.00 0.00
Total
Council is being asked to approve Supplemental Agreement No. 1 with CHS Engineers, LLC in
the amount of $10,000.00 for the CBD Sanitary Sewer Rehabilitation Project and consider this
item on the Consent Agenda at the April 6, 2015 Regular Meeting.
Attachment: Consultant Supplement No. 1
W:\PW Eng\PROJECTS\A- SW Projects\CBD Sewer Rehabilitation (91140203)\Info Memo Consultant Agreement Supplement 1 CHS - sb.doc
SUPPLEMENTAL AGREEMENT NUMBER I
to
CONSULTANT AGREEMENT NUMBER 14-152
THIS SUPPLEMENTAL AGREEMENT is entered into between the City of Tukwila,
Washington, herein-after referred to as "the City", and CHS Engineers, LLC, hereinafter referred
to as "the Consultant", in consideration of the mutual benefits, terms, and conditions hereinafter
specified.
The City desires to supplement the agreement entered into with the Consultant and executed on,
October 2, 2014 and identified as Agreement No. 14-152. All provisions in the basic agreement
remain in effect except as expressly modified by this supplement.
The changes to the agreement are described as follows:
C�
Scope of Services, for Supplemental Agreement #1 for Construction Management for the CBD
Sanitary Sewer Rehabilitation Project. The purpose of this supplement is to add:
Construction Support
1.1. Field Observation — Complete observation of field work and coordinate with City
Utilities Engineer or designated party regarding construction activities.
1.1.1. Civil Construction - Complete observation of field work including backfill,
compaction, surface restoration and site restoration.
1.2. Documentation — All construction observers shall prepare daily reports, accompanied by
photographs and/or sketches as suitable to clarify the report.
1.3. Pay Estimate Support — Review final pay estimate to confirm quantities for review and
approval by City.
1.4. Construction Completion Letter — Provide written documentation to the City
recommending the City accept the project as construction complete, stating the effective
date of the warranty period and any holding periods required prior to releasing retainage.
2. Deliverables
Up to seven (7) additional inspector daily reports (1DRs).
CD containing all digital photos taken throughout the project.
Construction completion letter initiating the warranty period and any time periods
necessary prior to releasing retainage.
3. Payment, shall be amended as follows:
Payment for the work provided by the Consultant as part of this supplement shall be
made for an additional $10,000.00. The total amount for the Consultant for this contract
shall not exceed $46,317.00 without express written modification of the Agreement
signed by the City.
(W:PW Eng/Projects/A-SW/C131) Sanitary Sewer Rehab (91140203)/Consultant Agreement Supplement #1140152 030315)
Tasks
Hours
Fees
Project Management
10
$1,386
Field Observation
64
$7,080
Documentation
8
$864
Pay Estimate Support
2
$216
Construction Completion Letter
2
$258
Mileage/Expenses
$196
Total
86
$10,000
4. Time for Performance, im amended Lo change the number o[ calendar days for u completion
date of May l5,20l5 with a total Of225days.
DATED this day of 12015.
CITY 0FDJ8WgLA
CONSULTANT
By: lv� "e4l'
Jim Haggerton, Mayor / Q-7.
Printed Name: A�Wnev Zanfer-
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(W:PW Sanitary Sewer Rehab (911402O])/CunsUant Agreement Supplement #114815Z03O]15)