HomeMy WebLinkAboutUtilities 2015-11-24 Item 2E - Contract Supplement #1 - 2015 Central Business District Sanitary Sewer Rehabilitation Construction Management with RH2 EngineeringCity of Tukwila
Jim Haggerton, Mayor
INFORMATIONAL MEMORANDUM
TO: Mayor Haggerton
Utilities Committee
FROM: Bob Giberson, Public Works Directo
By: Peter Lau, Senior Program Manager
DATE: November 20, 2015
SUBJECT: 2015 CBD Sanitary Sewer Rehabilitation Project
Project No. 91541201, Contract No. 15 -074
Construction Management Supplemental Agreement No. 1
ISSUE
Approve Supplemental Agreement No. 1 to Contract No. 15 -074 with RH2 Engineering, Inc. (RH2).
BACKGROUND
Consultant Contract No. 15 -074 with RH2 provided design engineering services for the 2015 Central Business
District (CBD) Sanitary Sewer Rehabilitation. Two separate construction projects were generated after the
design was completed; the 2015 Sanitary Sewer Manhole Rehabilitation Project and the 2015 CBD Sanitary
Sewer Rehabilitation Project. Supplemental Agreement No. 1 with RH2 will provide construction management
(CM) support for these two sanitary sewer construction projects. City Council awarded the 2015 Sanitary Sewer
Manhole Rehabilitation Project to Olson Brothers Pro -Vac, LLC, and the construction contract for the 2015 CBD
Sanitary Sewer Rehabilitation project was awarded to Michels Corporation at the November 2, 2015 Council
meeting.
DISCUSSION
To properly manage these two sanitary sewer construction projects, the City will need CM support during the
construction phase. Through this Supplement No. 1, RH2 will provide construction inspections, review of
material submittals and change order requests, and assist with monthly payments. RH2 staff has expertise in
construction inspection for sewer pipe relining and manhole construction and has performed the design work for
these two projects. Tukwila CM staff will still provide the majority of the CM work and the remaining share of
field inspections.
BUDGET SUMMARY
This Supplemental Agreement was carefully reviewed and is reasonable for cost and scope of work.
Contract 2016 CM Budget
RH2 Design Contract 15 -074 $ 16,136.00 $ 20,000.00
RH2 Contract 15 -074 Supplement #1 96,574.00 120,000.00
Total $ 112,710.00 $ 140,000.00
RECOMMENDATION
Council is being asked to approve Supplemental Agreement No. 1 to Contract No. 15 -074 with RH2
Engineering, Inc. in the amount of $96,574.00 for the construction management of the 2015 Sanitary Sewer
Manhole Rehabilitation Project and 2015 CBD Sanitary Sewer Rehabilitation Project and to consider this item
on the Consent Agenda at the December 7, 2015 Regular Meeting.
Attachment: Page 71, 2015 CIP
RH2 Supplemental Agreement No. 1
17
W: \PW Eng \ PROJECTS \A- SW Projects \CBD Sewer Rehabilitation (91140203)\2015 CBD Sewer \Construction\#.100 - Contract Documents \RH2 \Info Memo for RH2 Supplement #1 CM, #15 -074, 11 -20 -15 gl- sb.doc
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2015 to 2020
PROJECT: CBD Sanitary Sewer Rehabilitation Project No. 91140203
DESCRIPTION:
JUSTIFICATION:
STATUS:
MAINT. IMPACT:
COMMENT:
The asbestos concrete pipe in the CBD (commercial business district) is approximately 45 years old and
becoming soft. Slip lining the pipe will reinforce the strength with little impact to roadways and minimal excavation.
If the pipe collapses, the street will have to be excavated and the cost of the repairs will be significant. In the
last five years we have had two major pipe failures on Andover Park West.
A Public Works Trust Fund loan was successfully obtained in 2012 for construction.
Reduced maintenance and repair costs.
The limits of the 2013 project is APW to APE from Minkler Blvd to S 180th St and will now include the repair
to the sewer under the railroad tracks.
FINANCIAL Through Estimated
(in $000's)
2013 2014 2015
2016
2017
2018
2019
2020
BEYOND TOTAL
EXPENSES
0 Project Location
4 -s•' ,
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MAI
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1
MIA IMII
Design
159
33
20
20
20
20
20
Vpl.
292
Land (R /W)
i . °'
Ma
0
Const. Mgmt.
87
120
120
120
120
120
687
Construction
639
900
900
900
900
900
5,139
TOTAL EXPENSES
159
759
1,040
1,040
1,040
1,040
1,040
0
0
6,118
FUND SOURCES
Awarded Grant
0
PWTF /Proposed PW1
45
250
455
750
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
114
509
585
1,040
1,040
1,040
1,040
0
0
5,368
TOTAL SOURCES
159
759
1,040
1,040
1,040
1,040
1,040
0
0
6,118
2015 - 2020 Capital Improvement Program
71
18
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2015 - 2020 Capital Improvement Program
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18
SUPPLEMENTAL AGREEMENT NUMBER 1 to CONSULTANT AGREEMENT
NUMBER 15 -074
THIS SUPPLEMENTAL AGREEMENT is entered into between the City of Tukwila,
Washington, herein -after referred to as "the City ", and RH2 Engineering 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,
April 6, 2015, and identified as Agreement No. 15 -074. 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:
Task 1 — Additional CIP Planning
Objective: Revise project to fit into modified 2015 budget.
Approach:
1.1. Iteratively eliminate portions of completely designed project until the revised project is
within the City's reduced 2015 budget.
RH2 Deliverables:
• Cost estimates of alternative design packages that meet the City's revised budget, and email
and phone correspondence with City regarding scheduling the pipe segments with the
greatest criticality.
Task 2 — Bid Document Modifications
Objective: Modify previously completed set of plans and bid documents to be consistent with
reduced scope project consistent with revised CIP determined in Task 1.
Approach:
2.1. Delete portions of project from completed plan set and specifications and move some to
additive bid alternative. Produce plans and bid documents in the revised format.
RH2 Deliverables:
• Revised plans and bidding documents.
Task 3 — Services During Construction (SDC) for Central Business District
Sanitary Sewer Rehabilitation
Objective: Assist the City with technical efforts during construction of the Central Business
District Sanitary Sewer Rehabilitation project, including on -site construction observation.
Approach:
3.1 Pre - construction Meeting — Prepare for and attend one (1) pre - construction conference.
Prepare an agenda and meeting minutes for the pre - construction conference.
19
3.2 Submittal Review — Review shop drawings, submittals, and change order proposals of
those items requested in the technical specifications. Provide a written response to the
contractor and the City for each shop drawing and submittal reviewed.
3.3 Requests for Information and Pay Requests — Review written requests for information
(RFIs) and quantities for pay requests and provide written responses to the City.
3.4 Construction Observation — Provide on -site construction observation (see assumed
construction duration below) and associated administrative duties, including: observation of
the contractor and its subcontractors, bid item quantity tracking, communications with City
staff, and other tasks required in the field.
Participation or Information Needed from the City:
• Provide RFI responses to the contractor.
• Help to process the contractor's pay requests.
RH2 Deliverables:
• Pre - construction conference administration and documentation, including pre - construction
conference meeting agenda and minutes.
• Limited on -site construction observation and associated reports.
• Meetings and correspondence with the City and contractor, as needed, within the budgeted
hours identified in Exhibit A — Estimate of Time and Expense.
Assumptions:
• The City is performing the lead role in construction management and administration.
• For Task 3.4, construction is assumed to last approximately ten (10) hours each day for
twenty -five (25) days. An RH2 Engineering, Inc., (RH2) team member will be present at all
times during construction.
• Construction phase services are variable in nature and depend in part on the contractor
awarded the project. RH2 's estimate is based upon an experienced and reasonable
contractor being awarded the construction contract. RH2 recommends that the City budget
the amount shown for services during construction in the fee estimate plus a contingency
amount. The contingency would cover additional services if a more intensive level of
observation and technical support becomes necessary.
• Record Drawing work may be required.
Task 4 — Project Management for Central Business District Sanitary Sewer
Rehabilitation
Objective: Coordinate with City staff; monitor scope, budget, and schedule; review and issue
invoices; and maintain project files and records for the Central Business District Sanitary Sewer
Rehabilitation project.
Approach:
4.1. Coordinate with City staff on schedule, progress, and technical questions.
20
4.2. Prepare for and attend two (2) construction progress meetings. Prepare an agenda and
meeting minutes for the construction progress meetings.
4.3. Prepare invoices. Review for consistency and monitor budget spent. Provide monthly status
updates.
Participation or Information Needed from the City:
• Attendance at construction meetings by members of the City's staff.
Task 5 — SDC for Sanitary Sewer Manhole Rehabilitation
Objective: Assist the City with technical efforts during construction of the Sanitary Sewer
Manhole Rehabilitation project, including on -site construction observation.
Approach:
5.1. Pre - construction Meeting — Prepare for and attend one (1) pre - construction conference.
Prepare an agenda and meeting minutes for the pre - construction conference.
5.2. Submittal Review — Review shop drawings, submittals, and change order proposals of
those items requested in the technical specifications. Provide a written response to the
contractor and the City for each shop drawing and submittal reviewed.
5.3. Requests for Information and Pay Requests — Review written RFIs and quantities for pay
requests and provide written responses to the City.
5.4. Construction Observation — Provide on -site construction observation (see assumed
construction duration below) and associated administrative duties, including: observation of
the contractor and its subcontractors, bid item quantity tracking, communications with City
staff, and other tasks required in the field.
Participation or Information Needed from the City:
• Provide RFI responses to the contractor.
• Help to process the contractor's pay requests.
RH2 Deliverables:
• Pre - construction conference administration and documentation, including pre - construction
conference meeting agenda and minutes.
• Limited on -site construction observation and associated reports.
• Meetings and correspondence with the City and contractor, as needed, within the budgeted
hours identified in Exhibit A — Estimate of Time and Expense.
Assumptions:
• The City is performing the lead role in construction management and administration.
• For Task 5.4, construction is assumed to last approximately ten (10) hours each day for
twelve (12) days. An RH2 team member will be present at all times during construction.
• Construction phase services are variable in nature and depend in part on the contractor
awarded the project. RH2 's estimate is based upon an experienced and reasonable
21
contractor being awarded the construction contract. RH2 recommends that the City budget
the amount shown for services during construction in the fee estimate plus a contingency
amount. The contingency would cover additional services if a more intensive level of
observation and technical support becomes necessary.
• Record Drawing work may be required.
Task 6 — Project Management for Sanitary Sewer Manhole Rehabilitation
Objective: Coordinate with City staff; monitor scope, budget, and schedule; review and issue
invoices; and maintain project files and records for the Sanitary Sewer Manhole Rehabilitation
project.
Approach:
6.1. Coordinate with City staff on schedule, progress, and technical questions.
6.2. Prepare for and attend two (2) construction progress meetings. Prepare an agenda and
meeting minutes for the construction progress meetings.
6.3. Prepare invoices. Review for consistency and monitor budget spent. Provide monthly status
updates.
Participation or Information Needed from the City:
• Attendance at construction meetings by members of the City's staff.
1. Time for Performance, the completion date of the work shall be August 31, 2016.
2. Payment, shall be as follows:
o Payment for the work provided by the Consultant as part of this supplement
shall be made for an additional $96,574.00. The total amount for the
Consultant for this contract shall not exceed $112,710.00 without express
written modification of the Agreement signed by the City.
DATED this
CITY OF TUKWILA
day of , 2015.
Jim Haggerton, Mayor
CONSULTANT
By:
Printed Name: Richard L. Ballard
Title: Director
22
EXHIBIT A
City of Tukwila
Supplemental Agreement No. 1 to Agreement No. 15 -074
2015 Central Business District Sewer Rehabilitation SDC
Estimate of Time and Expense
Tony V. Pardi John D. Hendron Kenneth D. Schonberger Zachary W. Schrempp Maureen A. Schueren
$214.00 $206.00 5161.00 $150.00 5129.00
Steve Fletcher
Hours 5138
Task 1 ADDITIONAL CIP PLANNING
Descri p tion
Principal
Project Manager
Project Engineer
Staff Engineer
Administrative
Support
pport
Total
Hours
Total Labor
Sub Cost
Total Su6consultant
Total Expense
Total Cost
Classification
Professional IX
Professional VII
Professional III
Professional II
Administrative V
Technician IV
Tony V. Pardi John D. Hendron Kenneth D. Schonberger Zachary W. Schrempp Maureen A. Schueren
$214.00 $206.00 5161.00 $150.00 5129.00
Steve Fletcher
Hours 5138
Task 1 ADDITIONAL CIP PLANNING
1.1 Reduce scope of project to fit within the City's reduced 2015 budget
-
2
3
-
-
5
$ 895
$ -
$ -
$ 37
$ 932
Subtotal
-
2
3
-
-
5
$ 895
-
$ -
$ -
$ 37
$ 932
Task 2 BID DOCUMENT MODIFICATIONS
2.1 Revise bidding documents to remove work and move portions to additive bid alternative
1
2
2
2
2
9
$ 1,506
$ -
$ -
$ 53
$ 1,559
Subtotal
1
2
2
2
2
9
$ 1,506
-
$ -
$ -
$ 53
$ 1,559
Task 3 SDC FOR CENTRAL BUSINESS DISTRICT SANITARY SEWER REHABILITATION
3.1 Prepare for and attend one (1) pre- construction conference
-
-
4
2
6
5
-
16
-
-
10
$ 1,790
$ -
$ -
$ 144
$ 1,934
3.2 Review shop drawings, submittals, and change order proposals
23
$ 3,617
16
$ 2,208
$ 2,208
$ 92
$ 5,917
3.3 Review RFIs and pay requests, and provide written response(s) to the City
-
6
6
12
-
24
$ 4,002
2
$ 276
$ 276
$ 102
$ 4,380
3.4 Provide on -site construction observation
-
8
40
40
-
88
$ 14,088
170
$ 23,460
$ 23,460
$ 1,419
$ 38,967
Subtotal
-
20
57
68
-
145
$ 23,497
188
$ 25,944
$ 25,944
$ 1,758
$ 51,199
Task 4 PROJECT MANAGEMENT FOR CENTRAL BUSINESS DISTRICT SANITARY SEWER REHABILITATION
4.1 Coordinate with City staff regarding schedule, progress, and technical questions
-
2
2
2
2
8
$ 1,292
$ -
$ -
$ 34
$ 1,326
4.2 Prepare for and attend two (2) construction progress meetings
-
6
8
-
2
16
$ 2,782
6
$ 828
$ 828
$ 143
$ 3,753
4.3 Prepare invoices and monitor project budget
-
2
2
-
-
4
$ 734
$ -
$ -
$ 19
$ 753
Subtotal
-
10
12
2
4
28
$ 4,808
6
$ 828
$ 828
$ 196
$ 5,832
Task 5 SDC FOR SANITARY SEWER MANHOLE REHABILITATION
5.1 Prepare for and attend one (1) pre - construction meeting
-
4
6
-
-
10
$ 1,790
$ -
$ -
$ 144
$ 1,934
5.2 Review shop drawings, submittals, and change order proposals
-
2
6
16
-
24
$ 3,778
16
$ 2,208
$ 2,208
$ 96
$ 6,082
5.3 Review RFis and pay requests, and provide written response(5) to the City
-
6
6
12
-
24
$ 4,002
3
$ 414
$ 414
$ 102
$ 4,518
5.4 Provide on -site construction observation
-
8
20
20
-
48
$ 7,868
80
$ 11,040
$ 11,040
$ 815
$ 19,723
Subtotal
-
20
38
48
-
106
$ 17,438
99
$ 13,662
$ 13,662
$ 1,158
$ 32,258
Task 6 PROJECT MANAGEMENT FOR SANITARY SEWER MANHOLE REHABILITATION
-
1
1
1
1
6.1 Coordinate with City staff regarding schedule, progress, and technical questions
4
$ 646
$ -
$ -
$ 18
$ 664
6.2 Prepare for and attend two (2) construction progress meetings
-
6
8
-
2
16
$ 2,782
6
$ 828
$ 828
$ 143
$ 3,753
6.3 Prepare invoices and monitor project budget
-
1
1
-
-
2
$ 367
$ -
$ -
$ 10
$ 377
Subtotal
-
8
10
1
3
22
$ 3,795
6
$ 828
$ 828
$ 171
$ 4,794
PROJECT TOTAL
1
62
122
121
9
315 $ 51,939 299 $ 41,262 $ 41,262 $ 3,373 $ 96,574
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