HomeMy WebLinkAboutTrans 2016-11-07 Item 1B - Contract Supplement #6 - 42nd Avenue South (160th Street - 131st Place) Phase III with CH2MHillCity of Tukwila
Allan Ekberg, Mayor
TO: Transportation Committee
FROM: Bob Gibenomm,Pub|ic Works0irector^���—
BY: Cymdy Knighton, Senior Program Manager
CC: Mayor Ekberg
DATE: November 4, 2016
SUBJECT: 42 Id Ave South (S 160th — S 131s' PI) Phase III
Project No. 9941U303, Contract No 12-810
Supplemental Agreement No. 6
ISSUE
Authorize the Mayor to sign Supplemental Agreement NO. OVVith CH2K4HiU for $718'783.O5for
the combined 42 nd Ave S street improvements and Gilliam Creek Culvert design contract.
BACKGROUND
In February 2012, CH2MHiU began design work 00 8 project that combined the 42 nd Ave 8
(Southcente[ Blvd to S 160th St) roadway improvements and the Gilliam Creek culvert
F8p|RC8rO8D[ project. /# this time, the project is designed through the 9096 |8ve|' iDC|UdiDQ the
UDd8q][OUOdiDg Of 88ri8| utilities. At the 80% staff level review, 8 dHt8[DliD81iOD was made that
the project did OUtcomply with the City's Sensitive Areas Ordinance (SAO). The |G[g88t issue with
SAO compliance is the proposed storm water detention ponds location within the stream buffer.
AG8COOdG[y iGSU8 is 8 requirement to mitigate the [8|OC81iOD Of 14 feet O[less of the 8tr880 to
8||Ovv for the COOD8CLiOD to 8 new and more D8tU[8| St[B8nO bed that will [UD through the 16-foot-
wide new culvert.
DISCUSSION
GUpp|8[DeOLa| Aor8B[DeDt NO. 8 is needed for the redesign and F8|OC8bOD Of the SL000 water
detention facilities in order to comply with the City's shoreline buffer requirements, to develop a
mitigation plan for landscaping iD the stream buffer, and tO develop 8 mitigation plan for the stream
[e|VCatiOD from G 36-inch pipe to 8 more D81Un8| setting. Additional :0VndiD81iOD vvOrh with the
affected utilities is also necessary to both accommodate the revised design as well as the revised
construction schedule.
FINANCIAL IMPACT
The proposed 2O17C|P sheet for the 42» Ave S project haGbeenU tO allow funding for
this additional design work from the proposed increased construction budget.
Council k5 being asked k] approve Supplement No. 81O Contract No. 12-01O with CH2MHiUiOthe
80OUOL Of $218.783.O5 for the 42nd Ave S Phase ||| Project and CODSide[ this item at the
NOVH[Db8[ 14' 2010 Committee Of the Whole Meeting and SUbS8qU8Dt November 21, 2010
Regular meeting.
Attachments: Page u. Revised 2817 Proposed C|p
Supplemental Agreement No. 8
wApw eng\projects\a- rwu=projects\42nd aveo phase m(99410303 94-rsO3)\design\jnfo memo supp #6110416 sb.docx
73
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2017 to 2022
PROJECT: 42nd Ave South Phase III Project No. 99410303
DESCRIPTION: Design and construct street improvements, drainage, sidewalks, bike facilities, and driveway adjustments
JUSTIFICATION: Provide pedestrian and vehicle safety, drainage, and neighborhood revitalization.
STATUS: (Phase III (S /C Blvd (154th) - S 160 St), Design began in 2012, construction in 2017. Project No. 99410303
Phase IV (S 139 St - S 131 PI) in beyond. Project No. 99410301
Phase 190 -RW15 (S /C Blvd (154) - 144 St) $3,796 & Phase II 94 -RS02 (144 -139) $1,850, both completed.
MAINT. IMPACT: Reduce pavement, shoulder, and drainage work.
COMMENT: Only Phase III is shown in active years. Project includes Surface Water's Gilliam Creek 42nd Ave S Culvert project
for $1.3m (pg. 100) and is part of the Walk & Roll Plan. Seattle City Light's funding is a 60/40 underground split.
FINANCIAL Through Estimated
(in $000's) 2015 2016 2017 2018 2019 2020 2021 2022 BEYOND TOTAL
EXPENSES
Phase IV
Design
1,000
174
211
1,385
Land (R/W)
100
100
Const. Mgmt.
750
322
560
1,632
Construction
2,323
1,086
3,800
7,209
Undergrounding
2,467
1,057
3,524
TOTAL EXPENSES
1,000
1 174
5,851
1 2,465
1 0
0
0
0
4,360
1 13,850
FUND SOURCES
Seattle City Light
1,077
462
1,539
Surface Water
144
4
148
Other Utilities
1
150
136
287
Bond
4,600
1,800
6,400
City Oper. Revenue
855
170
24
67
0
0
0
0
4,360
5,476
TOTAL SOURCES
1,000
174
5,851
1 2,465
1 0
0
0
0
4,360
13,850
74
2017 - 2022 Capital Improvement Program 2
City of Tukwila Agreement Number:
• 6200 Southcenter Boulevard, Tukwila WA 98188
CONTRACT FOR SERVICES
Amendment #6
Between the City of Tukwila and CH2M Hill Engineers, Inc
That portion of Contract No. 12 -010 between the City of Tukwila and CI-12M Hill Engineers,
Inc is amended as follows:
Section 2: Scope of Services shall be supplemented with the following:
The Consultant agrees to perform the services, identified on Exhibit A -1 attached hereto,
including the provision of all labor, materials, equipment and supplies.
Section 3: Time for Performance shall be modified as follows:
3. Time for Performance. Work under this contract shall commence upon the giving
of written notice by the City to the Consultant to proceed. The Consultant shall perform all
services and provide all work product required pursuant to this Agreement by December
31, 2017, unless an extension of such time is granted in writing by the City.
Section 4: Payment shall be modified as follows:
A. Payment for the work provided by the Consultant shall be made as provided in Exhibit
B -1, attached hereto, provided that the total amount of payment to the Consultant for
this work shall not exceed $218,783.05 without express written modification of the
Agreement signed by the City. The new total contract shall not exceed $1,383,340.62
without express written modification of the Agreement signed by the City.
All other provisions of the contract shall remain in full force and effect.
Dated this day of
CITY OF TUKWILA
Allan Ekberg, Mayor
ATTEST /AUTHENTICATED
Christy O'Flaherty, MMC, City Clerk
20
CONTRACTOR
APPROVED AS TO FORM
City Attorney
Page 1 of 1
75
Exhibit A -1
40th— 42nd Ave S. Phase III
City of Tukwila
Amendment 6
Scope of Work
The scope of work is amended as follows:
•
The project schedule has incurred additional delays while permitting issues were being resolved
within the City. The CONSULTANT assisted in these discussions, developing concepts and
analyzing alternatives to the Detention Pond design. The result of these discussions has added
some significant changes to the design primarily related to the stormwater detention facilities. The
current direction is to eliminate the stormwater detention Pond adjacent to Gilliam Creek and
install a detention vault in S. 158th St., just west of 42nd Ave S. Additional coordination with private
utility service providers is required to resolve outstanding issues and finalize the design.
Feedback from the public outreach will also require design revisions.
Amendments 4 and 5 extended the duration from December 31, 2015 to December 31, 2016 without
any scope or budget adjustments. This Amendment 6 defines scope and budget adjustments for
additional services as well as account for the extended duration through December 31, 2017.
TASK 1
1. Project Management
Due to the 12 month time extension, additional project management is required for providing
overall project administration, team management, schedule management, scope and budget
management, and the preparation of progress reports and invoicing. With a credit for 2 months of
inactivity, the additional duration for purposes of project management is assumed to be 10
months.
Deliverables:
Monthly progress reports and invoices (10)
Bi- Monthly meeting materials (5), notes and action items
Schedule updates
r[ll
TASK 2
2. Gilliam Creek Culvert
2.5.2 Culvert 60%, 90%, and Final Design
Additional work will be required to coordinate with other Utilities (SCL, Century Link and
Comcast) related to the temporary support of their facilities during the culvert installation. We
need to facilitate a decision on how this work will be contracted and revise the contract documents.
Assumptions:
• CI-12M will participate in up to 6 meetings with utility providers and City Staff to reach a
conclusion/ decision on the preferred approach to the construction of the temporary support
system.
• CH2M will incorporate necessary plan revisions, special provisions, bid items/bid schedules
into the contract documents.
• The preferred approach is assumed to not require any additional design, including utility
support systems by CI-12M (beyond what was included in the 90 % submittal.)
Deliverables:
• Meeting notes and action items from design coordination with SCL, Century Link and
Comcast.
• Incorporate revisions to contract documents.
TASK 3
3. Geotechnical Engineering
Additional work will be required to determine the soil conditions and groundwater conditions at
the proposed detention vault site at the west leg of S 158th Street. Geotechnical exploration to
include 2 boring to a depth of 20 feet and a piezometer in one of the boring. Perform standard
penetration test sampling at 2.5 feet interval, and sieve size analyses.
Assumptions:
• No infiltration test will be performed.
• The CONSULTANT will collect monthly readings of the water level in the piezometer.
• Temporary closure of S 158th Street will be needed.
Deliverables:
• Technical memorandum to supplement the geotechnical data report and recommendation
report with design recommendations for the detention vault design.
TASK 4
4. Survey and Mapping
No additional work under this task
MA
TASK
5 30% Design
~~
No additional work under this task
TASK
d� Environmental �� �,��°
Documentation
��° ������wwonn��unK���u�°nn
6. 1 Environmental S upp~ rt
The CONSULTANT will provide the following support:
Assist Public Works 6nthe completion of the Special Permission Permit
Prepare plans and documentation related tothe landscaping plan required for the Special
Permission
• Prepare to show locations of plantings within the stream buffer and along
the roadway corridor
• Develop memorandum documenting how the project would mitigate tree removal
and the landscaping requirements based upon Tukwila Municipal Code.
Address comments from City of Tukwila Planning staff on Special Permissions
Application. Comments on the Special Permission Application will be delineated and
complete responses provided.
Coordinate with Public Works mn the Special Permissions Permit:
• One (1) meeting with Public Works hobe attended bnnpto two (2)CONSULTANT
team members with Public Works Staff to review proposals to address City of
Tukwila Planning comments on Special Permission Permit
• One (1) meeting with Public Works and Planning staff to discuss path forward with
regards to stormwater and Special Permission Permit. Meeting to be attended by up
to three (3) C[)N5TJ[IANI team members.
Development of concise working memorandum documenting preliminary determinations
of potential environmental issues related to alternatives to locating stormwater pond
adjacent to Gilliam Creek. Memorandum will address the environmental issues of up to six
(6) other locations 6u the project areatocoDeutanddiocbargeotozznwatmr.Inforzuadon will
be presented to City of Tukwila Public Works to assist infinding a location outside of
Gilliam Creek buffer.
Revise Special Permission Application and supporting information based upon
coordination and meeting with Public Works and Planning staff members. This will
include a5 year stream buffer monitoring plan that assumes the first year im performed 6v
the contractor and the following 4 years by the City ufTukwila.
Deliverables
• Special Permissions Permit Application. Application includes City o{ Tukwila application
form, Special Permissions permit information, and landscape plans
• Revised Special Permissions permit application package
• Memorandum addressing response to comments on the Special Permission.
78
TASK 7
7. Right of Way
7.1 Acquisitions from private property
Slope easements for two parcels.
Assumptions:
• Two (2) permanent Slope Easements are required (parcels #15854 and #15838)
Deliverables:
• Parcel/ Easement calculations, legal descriptions and exhibits
• Parcel/ Easement exhibits for each parcel (2)
• Record easement with King County (2)
• Appraisals (2)
• Negotiations with property owner (2) to secure the necessary rights
TASK 8
8. Agency, Stakeholder, and Community
Coordination
8.1. Stakeholder and Agency Coordination (CITY, Property Owners,
Utilities, WSDOT)
8.1.4. Utilities
The CONSULTANT will assist in additional coordination with utility companies including: Seattle
City Light (SCL), Comcast, Century Link and Zayo to facilitate finalize undergrounding plans for
power and communication lines along 42nd Ave S.
The CONSULTANT will assist in the coordination with Valley View Sewer regarding sewer
connections/ stubs for 3 parcels currently on septic system (#15458, #15837, #15838)
Assumptions:
• Up to 4 additional meetings with utility companies to coordinate the design of their facilities
with the other proposed project improvements.
Deliverables:
• Meeting minutes and action items
4
N*1
TASK
9 Contract
9,3~ Roadway and Sto r0hra^nage
9.3,1, Roadway Sections
The CONSULTANT will revise and update the ��w�to City directed
changes ' - [
to the bike facilities.
Deliverables:
* Revisions incorporated into the 100% Typical Roadway Sections
9.3~2. Paving, Grading and Drainage Plans and Profiles
The CONSULTANT will revise the plans tu incorporate the following design :
• Revise mtorzunmtoz collection and conveyance system bo direct the appropriate flow volume to
the new mtozzuwater vault buS.158th Street am described bz Task 9.S.3.
• Revise layout for the storm main north of 158th Street to move manhole covers out of the wheel
path due toa shift to the roadway centerline stripe.
• Revise the layout of the storm drain systems that discharges into the pond.
• Revise storm drain profiles ao needed per the revised layout.
• Revise Grading ou Parcels #l5854 and #l5838 where vve are changing frozuavvaDtoaalo9ed
interface.
• Revise limits of paving/overlay t* include the entire 16Uffiintersection.
Revisions incorporated into 100% Paving, Grading and Drainage Plans and Profiles and Detail
Sheets
9.3.3, Stormwater Management Facilities
• Design o[storuzwater vault inlet and outlet structures and associated storm drain
collection systems, grading and
• Two additional Plan sheets to show the vault details and section.
• Revise Demolition and Erosion Control Plans, and Paving Plans to cover changes around
the detention vault and the former detention pond site.
• Add an additional stormwater treatment device to the storm drain system (that was
formerly used to discharge to the pond) north o{ the culvert.
• The detention vault tobe pre-cast concrete.
• A Contractor designed aborbngnlanvviUbe required.
• One field visit
Deliverables:
* 100% St000weter Management Plans and Details (4)
80
9.5. Utility
9.5.2. Utility Undergrounding Plans — Power and Communication
The CONSULTANT will revise the plans to incorporate any changes that come out of the
additional coordination with SCL, Century Link, Comcast and ZAYO.
Deliverables:
• 100% Utility Undergrounding Plans, Profiles and Details (16)
9.6. Structures
No additional work under this task
9.7. Channelization, Illumination and Signing
The CONSULTANT will revise the plans to incorporate revisions to the striping including a shift
to the centerline stripe and striping for the bicycle facilities.
The CONSULTANT will coordinate with WSDOT regarding under bridge lighting.
Deliverables:
• Revisions incorporated into 100% Channelization, Illumination, and Signing Plans (6)
TASK 10
10. Specifications
Due to the changes to the stormwater detention facilities, and continued discussions related to
supporting Power and Communications lines during the construction of the culvert at Gilliam
Creek, additional work will be required to the specifications as follows:
The CONSULTANT will prepare and incorporate special provisions related to the Stormwater
detention vault and related facilities.
The CONSULTANT will prepare and incorporate special provisions related to the utility support
system at the culvert.
Deliverables:
• 100% Stormwater Detention Specifications
• 100% Stream Buffer Mitigation Specifications
1) 1 year monitoring plan
2) Temporary Irrigation
• 100% Special Provision and bid schedule for the Utility Support System at the culvert crossing
81
TASK 11
11. Cost Estimating
Due to the changes described above, additional work will be required for the cost estimate.
• 11.2 Engineer's Estimate
Deliverables:
• 100% Cost estimate
82
Exhibit B - Consultant Fee Summary
City of Tukwila
40th - 42nd Avenue South Phase III Amendment #6
10/28/2016
Budget Summary By Task
Task Description
Labor
Hours
Total
Labor
Total
Reimbursable
Overall
Totals
Roadway Design
Task 1 - Project Management
138
$25,267
$150
$25,417
Task 3 - Geotechnical Engineering
35
$4,268
$12,000
$16,268
Task 4 - Survey and Mapping
0
$0
$0
$0
Task 6 - Environmental Documentation
0
$0
$0
$0
Task 8 - Agency, Stakeholder & Community Coordination *
48
$10,447
$0
$10,447
Task 9 - Contract Drawings
358
$52,008
$0
$52,008
Task 10 - Specifications
80
$14,554
$0
$14,554
Task 11 -Cost Estimating
44
$7,233
$0
$7,233
Task 12 - Major Milestone Reviews (30 %, 60 %, 90 %, 100 %)
0
$0
$0
$0
Task 13 - Services Durino Biddin and Construction
0
$0
$0
$0
3 a "A
Culvert & Stormdrain
Task 1 - Project Management
49
$9,024
$0
$9,024
Task 2 - Gilliam Creek Culvert
58
$11,977
$0
$11,977
Task 3 - Geotechnical Engineering
23
$2,845
$0
$2,845
Task 4 - Survey and Mapping
0
$0
$0
$0
Task 5 - 30% Roadway Design
0
$0
$0
$0
Task 6 - Environmental Documentation
138
$28,926
$0
$28,926
Task 9 - Contract Drawings
140
19,911
$`0
$19,911
. @ e
rk"�6P,T ., ?{
< 3,
Right of Way
Task 1 - Project Management
10
$1,805
$0
$1,805
Task 7 - Ri ht of Way
50
$8,369
$10,000
$18,369
€+f';0• :'' r
'' {i" „I k4 ^r
€� 0. 4fV
hrXl ;frry?i P'
AMENDMENT #6 TOTALS '
1,171
$196,633
$22,150
$218,7$3
83
Exhibit B - Consultant Fee Determination
City of Tukwila
40th - 42nd Avenue South Phase!!! - Amendment 56
, ... CH2M HILL. INC -
Title .
Sr. Protect
Manager
Sr. Consultant
Br. Engineer
Engineer
Surveyor
Jr Engineer
Sr. Technician
Technician
Office
TOTAL
TOTAL
Requested 55 Rate
5242.52
$219.02
$192.77
5160.57
$135.73
$104.35
$138.61
$76.03
$93.83
Task Name; -
`
LOS
- LOE ,
- LOS. ,-
- LOE.
Lf
.` LO, ,
LOB
LOE _,
L00 -
Total
.Total
LOS
Dollars
T,�; �'�I��dan?irafft",..• °,��z �� . ��:'�� ,
e�<�8$ �
,4� i2�� �
>���9 ��
� 1i%�� ?
.. �-�o .�.,
-� ii�,
� � t%
�� . i!?zt
6tka� �
.��"i��, r
� 3t?sS,g
$26,746
1,1
Overall Project Management ",
68 -
:; 0
24
0
Q.,
; . 0
0
0 "
6p
152..
Time extensions and associated Project Management (10 months)
48
24
72
$16,267
Monthly Progress Report, and Invoices (10)
20
60
80
510,480
`•
.'1.2
Coordination MeetEtgs wtth`City ;= ;
, '.20 . ,
-,, 0
" 16
10 ,�
0.
-` 0
0
;
0
b "
45
:: 39,346; -
Bi- Monthly Project Team Meetings - 5 meetings, 2 Hours, 3 staff - City
and Bellevue Office: Meeting Agendas, Summaries, Action Items
20
15
10
45
$9,348
= s
060 MSS c :=P:. tit) irYi t(J¢ yYien tyi ti ti (i ,4i
�I�i i�
e
a
e
e
i
e
a
lv Yft e and a l i II II I �� �i �II���
e
s
1
t
r
,, rd p�r
ink nand
Additional Meetings Comcast (6 eetings,
Utility revisions
ki Me
n.
(1
.
o _
, 5711
n Conditions l
e
,
Complete Site Reconnaissance
4
417
Complete Subsurface Exploration and Laboratory Testing including
Coordination of Access Engineer Present
8
16
24
$3,212
Monthly Monitoring (5 months)
10
10
$1,044
Update Technical Memo
4
16
20
$2,441
Meetings - 2 meetings 3 staff
Special Permissions Permit Application
6
24
24
54
611,338
Revised Special Permissions Permit Application Package
2
24
24
50
$10,368
Memorandum addressing response to comments on the Special
Permission
•.
16
$3,294
t
c
a
•
e
a
ROW Acquisition Su••o
24
24
50
•e
t:
.:.' ) }j"... e.. •, !�i "WFs • �a9e "•i � "j srI I i. {
•
1
1
!
)
/
1
v V d yia �I . . ��piil�i'� �t ��I dl 4�(�l
e
•
0
i
i
e
e
48
e .
RoadwayantStormWaterDrairaa
2-
e
8
4 •
1
11
1 e,
i
r
98
1
Roadway Sect- orris *'�* ; ''
Revisions 100! Roadway Sections
Paving. Grading and Drainage: Plans and Profiles =
• i
Revisions 100% Roadway Paving, Grading and Drainage Plans and
Profiles and Detail Sheets
32
• e
60
60
20
232
$31,901
Evaluate Bike Lanes/sharrow configuration
2
16
83,681
StomWater Management Facilities, . ,
Prepare 100% Stormwater Management Plans and Details (4)
80
• e
20
140
Uth iity
e
e
e
1
e
17118ty Under®raurding Plans - Polder and Canununica0611
100% Utility Undergrounding Plans, Profiles and Details (16)
32
20
52
$8,941
Cbatinelization; Illumination, and Sign[ng, -
e
1
Revisions 100% Channetization, Illumination & Signing Plans & Details
(6)
p I
kV !i M�i 6 eal�NQ
f
- 1
1
t
i
•
100% Stormwater Detention Specifications
40
40
$6,423
100% Stream Buffer Mitigation Specifications
16
0
16
i
100°A Special Provision and bid schedule for the Utility Support System
at the culvert crossing
24
24
4,626
G
'$7,233�� =.
11,2
Engineer' Estimate ';
`' 4
0 "
16`�,.w=
,. ;..12' i =,
. it
. �:'12 -,
0
, 0
0; , ,.
4+F -'
100% Cost Estimate
4
16
12
12
44
$7,233
Exhibit B - Consultant Fee Summary
City of Tukwila
40th 42nd Avenue South Phase III
Direct Labor
Classification
Quantity X Rate _ Cost
Hours
x
Rate
=
Cost
Sr. Project Manager
Appraisals - Sub
160.0
Total Expenses
$242.52
$38,803.20
Sr. Consultant
78.0
$219.02
$17,083.56
Sr. Engineer
321.0
$192.77
$61,879.17
Engineer
202.0
$160.57
$32,435.14
Surveyor
24.0
$135.73
$3,257.52
Jr. Engineer
150.0
$104.35
$15,652.50
Sr. Technician
136.0
$138.61
$18,850.96
Technician
40.0
$76.03
$3,041.20
Office
60.0
$93.83
$5,629.80
1,171.0
$196,633.05
Expenses
Category
Quantity X Rate _ Cost
Drilling - Sub
$12,000.00
Travel - Mileage
277.8 $0.540 $150.00
Acquisitions - Sub
$5,000.00
Appraisals - Sub
$5,000.00
Total Expenses
$22,150.00
85
Exhibit B - Consultant Fee Summary
City of Tukwila
40th - 42nd Avenue South Phase 111
October 28, 2016
Reimbursables
Reimbursable Item
Task 1 - Project
Management
Task 3 -
Geotechnical
Engineeri ng
Task 7 - Right
of Way
Totals
Drilling - Sub
$12,000.00
$12,000.00
Travel - Mileage
$150.00
$150.00
Acquisitions - Sub
$5,000.00
$5,000.00
Appraisals - Sub
$5,000.00
$5,000.00
Totals
$150.00
$12,000.00
1 $10,000.00
1 $22,150.00
86