HomeMy WebLinkAbout22-102 - Contract - PACE Engineers - South 131st Place Drainage ImprovementsCity of Tukwila Agreement Number: 22-102(d)
Council Approval 12/2/24
6200 Southcenter Boulevard, Tukwila WA 98188
CONTRACT FOR SERVICES
Amendment # 4
Between the City of Tukwila and Pace Engineers, Inc.
That portion of Contract No. 22-102 between the City of Tukwila and Pace Engineers, Inc. is hereby
amended as follows:
Section 2: Scope of Services. Work under this contract shall be amended to include
reimbursement for direct expenses and costs associated with the additional contract scope of
services as described in Exhibit A, attached.
Section 3 Duration of Agreement; Time for Performance: The Consultant shall perform
all services and provide all work product required pursuant to this agreement no later than
December 31St, 2025.
Section 4: Payment. Payment is hereby changed to include an additional $223,170.00 for this
additional scope of services. See Exhibit A. The maximum amount payable under this contract as
amended inclusive of all fees and other costs shall not exceed $754,393.00 without express written
modifications of the Agreement signed by the City.
All other provisions of the contract shall remain in full force and effect.
Dated this 23rd
day of December _, 2024.
CA Reviewed May 2020 Page 1 of 2
o6200 Southcenter Boulevard, Tukwila WA 98188f Tukwila
CITY OF TUKWILA
DS LE2-4a90r54E,B4-4'c
gned by:
rfP\V1........................
Thomas McLeod, Mayor
ATTEST/AUTHENTICATED:
DocuSigned by: qq
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FOR Andy Youn, City Clerk
APPROVED AS TO FORM:
Signed by:
w C—
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Office of the City Attorney
CONTRACTOR: � r -
By: —X�n=m�A
Printed Name: �,�1q.®�
Title:
CA Reviewed May 2020 Page 2 of 2
WATER I LAND I INFRASTRUCTURE I FACILITIES
SCOPE OF WORK
131ST PL DRAINAGE IMPROVEMENTS
PHASE IIIB—FEASIBILITY
PROJECT UNDERSTANDING
The City of Tukwila (City) has requested a proposal for engineering services to research and
investigate a historical landslide centered around 43rd Avenue S from S 137th Street to Macadam
Road S.
This effort includes the following:
Project management time, team meetings, and coordination with project
subconsultants.
2. Topographic and boundary survey for the area shown as Phase IIIB on Exhibit A.
3. Review the video inspection and develop a report of recommendations for the City to
repair/replace any deficiencies that are observed. Approximately 500 linear feet of
stormwater conveyance system is to be cleaned, inspected, and analyzed.
4. Prepare Site Investigation Report and Recommendations
Includes, reviewing recommendations from the Kramer, Chin & Mayo Study for the
West Reach of Southgate Creek and applying appropriate recommendations to the
Middle Reach of Southgate Creek.
5. Critical area review and study of creek channel, Geotechnical review/monitoring of
the subject area and associated creek channel.
PACE proposes the following scope and fee for the 131s' PL Drainage Improvements Phase IIIB
Feasibility Study.
110101:24101;+91:tVNV
PACE will be responsible for conducting ongoing management/administration of the
consultant team in accordance with the provisions of the Agreement. Ongoing management
will include completion of professional services in a timely manner and within the agreement
budget.
PACE will maintain regular contact and coordination with the City Project Manager in
accordance with the provisions of the Agreement. The PACE Project Manager will be
responsible for:
■ Maintaining regular contact with the City and designated project management
team staff through telephone conversations and e-mails
■ Maintaining open access to project information by the City.
3501 :';czl�7l4v a u..ue:, u..uiiV: 101
li vewett, VVa lhiingLoin 92.2.111 -4794
November 19, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIIB
Scope of Work
Page 2 of 8
■ It is PACE's intent to maintain open communication with the City at all levels of the
PACE project team. Therefore, the City Project Manager may contact team
members as needed.
PACE will provide administration and coordination throughout the duration of the project,
including coordination of survey and subconsultants, contracting and invoicing, scheduling,
and client coordination. PACE will conduct regular coordination and update meetings virtually
with City of Tukwila and GeoEngineers at project milestones and as needed. The following
tasks are anticipated:
■ Bi -weekly project check-in meetings. It is assumed there will be eight (8) meetings,
two (2) hours each for two (2) PACE staff, including preparation of the agenda and
meeting minutes.
■ Project invoicing, progress reports, and team coordination. For the purpose of
budgeting, PACE has assumed the project will continue for 16 weeks through the
completion of this scope. If the project continues beyond this period, services will
be considered additional to the scope of this proposal. Prior to any additional work
being performed, PACE will provide the Client with an estimate of fees to continue
with these tasks.
PACE will coordinate the Right -of -Entry (ROE) for the environmental and survey field work for
the properties included in this phase of work. Using the City provided form and project
language, PACE will compile the packet of information to deliver to each property owner. The
property owner's information will be gathered from online public taxpayer records. Each
packet will be delivered to the taxpayer's address by delivery service (FedEX or similar). PACE
will maintain a record of all responses and prepare a map that indicates which properties
have granted access to PACE and their subconsultants. PACE will follow up one (1) time by
mail to the identified property owners with a letter reminding them of the ROE request.
PACE has identified up to 13 properties in this phase of work that will require signed ROE
forms granting permission to enter their property prior to beginning field work.
PACE will coordinate the ROW permit with the City for all work being performed within the
City's ROW. This includes all work being performed by PACE, subconsultants for the
Geotechnical assessment, critical areas, and CCTV video inspection.
November 19, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIIB
Scope of Work
Page 3 of 8
No in person or direct coordination is included in this task.
Meeting agendas in electronic form (PDF format). One (1) electronic copy for each
meeting.
2. Monthly status/progress reports and monthly invoices in electronic form (PDF
format).
3. Record and Exhibit of all ROE respondents.
November 19, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIIB
Scope of Work
Page 4 of 8
Up to two PACE project team staff will conduct two (2) site visits: one meeting to understand
the site-specific conditions, a second to provide visual inspection of drainage system for
residential properties directly upstream of subject area. These parcels include: 26120-0190,
0180, -0170, and -0160. Qualitative observations concerning existing vegetation, riverbank
conditions, exposed stormwater features, and exposed highway features will be documented
in field notes and site photos.
PACE will extend the topographic survey conducted in January 2023 to 43rd Avenue S
between S 137th Street and Macadam Road S. Survey control will be extended to gather
information on approximately 700 linear feet of closed Right -of -Way (ROW) within 43rd
Avenue S. Together with additional mapping in King County Tax Lots 261200TRCT and
261320TRCT as depicted on attached Exhibit "A".
Survey will also include stormwater inlet/outlet for culvert crossings under 43rd Avenue S and
Macadam Road S.
1. Topographic Survey— Shall include but is not limited to the following:
• Channel thalweg (deepest point) at 20 ft intervals, and break lines including toe
of stream bank, top of bank, any terraces or major bars or other features, and
floodplain lying 10' of elevation change on either side of edge of channel and
where the topography connects at the top of bank to address overhang
specifically along the east bank
• Water surface elevations (as required).
• Major channel angle points.
• Wetlands flag and ordinary high water (OHW) delineations.
• Culverts with invert elevation and size.
• Roadway features on 43`d Avenue S.
• Planted ornamental trees
• Retaining walls and rockeries
• Fencing, curb, pavement, and gravel edges
• Roadway markings and signage
• Surface indications of utilities, such as vaults, pedestals, irrigation etc.
• Utility lines that can be visually observed, located by RF locating equipment or
identified on readily available record drawings.
• Sewer and storm structures will be measured for invert elevations, size of pipe,
and size of structure.
• Any tree 8 -inch in diameter or greater, as measured 4 feet above the ground.
• Contours will be generated at a 1 -foot interval.
November 19, 2024
22546
City of Tukwila
131 st Drainage Improvements Phase 1116
Scope of Work
Page 5 of 8
PACE survey team willthoroughly investigate and integrate relevant information accessible
from City data sources, whether readily available or provided. Any additional time due to
unforeseen issues or out of scope work will be billed on a Time -and -Expense (Rates) fee basis
only after City's approval.
1. Any signed ROE form needed will be granted by the property owners.
2. Any OHW and Wetland delineation flags will be hung by GeoEngineers prior to the
commencement of the field survey.
3. Re -mobilizations or additional work based on areas or features of concern that were
not originally discussed; areas identified by other specialists (Biologists, Arborists,
etc.) after the initial field work or those areas which were not accessed due to safety
or limitations of time is not included and would be considered additional work.
4. King County GIS parcel lines will be used to show appropriate ROW and property
lines. No ownership or occupancy will be a part of this survey.
5. This Task is a Topographic Survey and not a Boundary Survey.
6. Topographic mapping data will be provided by PACE in AutoCAD C3D 2021 per PACE
ACAD standards.
Survey basemap CAD file in .dwg format and signed PDF sheet set
PACE to contract with a CCTV contractor from small works roster to CCTV multiple pipe
segments and then provide tapes and inspection reports to PACE.
PACE will perform a review of the contractor provided video inspections of the stormwater
system. As part of the review any anomalies in the pipes will be noted and classified per the
Pipeline Assessment Certification Program's (PACP) anomaly code referencing system. PACE
will use these observations and information to develop a report that proposes
repair/replacement for all anomalies observed in the video of the system; these observations
and recommendations will be provided in the Site Investigation Report described later in this
scope.
PACE will have a contractor from the City's small works roster as a sub to this
contract to CCTV the pipe(s) and provide visual inspection of catch basin structures
within 43rd Avenue S from S 137th Street to tax parcel 261320-0152. The contractor
November 19, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIIB
Scope of Work
Page 6 of 8
will provide CCTV video inspection reports in PDF form and videos in digital form to
the City. The CCTV subcontractor will provide inspection reports and videos to PACE.
2. This company will be a PACE subconsultant.
3. As the exact condition of the pipes is unknown, for budgeting purposes the number
of anomalies in the system that are anticipated to be addressed is 12 (approximately
1 anomaly for every 50 feet of pipe inspected). Efforts expended to analyze/provide
recommendations for anomalies in excess of this estimate will require an additional
services agreement (ASA) or will be billed on a time and expenses basis.
4. The recommendations for pipe repair/replacement will be driven by a combination of
the video inspection and surface restoration efforts/requirements.
5. The report will include recommendations for pipe repair/replacement and will not
include any analysis of existing drainage structures such as catch basins, storm
drain manholes, flow splitters, water quality/detention facilities etc.
6. No design drawings will be produced for this task. The report will include a map that
is graphical in nature that shows the location of all anomalies analyzed.
7. PACE will coordinate ROW permitting with the CCTV subconsultant and City. ROW
permit fees for this work will be reimbursed by the City.
*TAU r, IM
Pipe replacement as a result of the recommendations report for the CCTV and pipe inspection
task.
PACE will provide a draft pipe assessment report in electronic form (PDF format) for
one (1) review to be performed by the City.
2. PACE will provide a final pipe assessment report in electronic form (PDF format)
based on the City's review initial review comments.
After initial studies and site investigation are complete, PACE will prepare a site investigation
report summarizing site findings and initial design approach recommendations. PACE will
provide up to three (3) recommendations (or menu of options) to address arresting sediment
within Southgate Creek between S 137th Street and Macadam Road S.
November 19, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIIB
Scope of Work
Page 7 of 8
3. The report will be limited to recommendations drawn from site investigation, survey,
geotechnical, the Kramer, Chin, and Mayo report dated 1992, and critical areas
reports completed as a part of this scope of work.
4. PACE will coordinate with City staff regarding maintenance frequency of storm
structures within and directly upstream of the subject area to determine.
5. PACE will utilize land use and flow data from previously completed PACE hydraulic
reports and not conduct new modeling for this phase of work.
PACE will provide a draft site investigation report in electronic form (PDF
format) for one (1) review to be performed by the City.
e Within the report, exhibits will be provided that illustrate the stream
profile from the culvert south of S. 137th Street, through the open space
and ending at the culvert north of MaCadam Road S. Sections will be
provided as needed.
• A considerations, limitations, and opportunities spreadsheet will be
included as an exhibit/figure within the draft site investigations report.
• PACE will provide up to three (3) recommendations (or menu of options)
along with a summary of the options for City review.
e Observations and recommendations from the CCTV pipe inspection task
above will be incorporated into the Site Investigation Report.
2. PACE will provide a final site investigation report based on City comments in
electronic form (PDF format) to the City.
w;1 111 1111711111!
GeoEngineers has provided the attached geotechnical assessment and wetland and stream
delineation services as a sub -consultant to PACE Engineers, Inc.
November 19, 2024
22546
City of Tukwila
131 st Drainage Improvements Phase 1116
Scope of Work
Page 8 of 8
1:200,10] 9619131
The costs associated with the above-described work are shown on the attached spreadsheet.
Fees shown in the summary table below outline the current balance and requested contract
amendment.
ESTIMATED PROJECT COST PHASE IIIB................................................................$ 193,170
PROPOSED MANAGEMENT RESERVE FUND PHASE IIIB ..........................................$30,000
SUBTOTAL PHASE IIIB................... $223,170
ORIGINAL CONTRACT AMOUNT...........................................................................$371,610
AMENDMENT#1 Site Investigation Report..............................................................$19,880
AMENDMENT#2...................................................................................Contract Extension
AMENDMENT #3..................................................................................................$139,733
SUBTOTAL CURRENT CONTRACT AMOUNT.........................................$531,223
REQUESTED #4 CONTRACT AMENDMENT ....................................................... $223,170
TOTAL CONTRACT WITH AMENDMENT #4 ............................................................$754,393
END OF SCOPE OF WORK
J,
N
131st PL Drainage Improvements Phase IIIb
EXHIBIT'A'
90 45 0 90 Feet
PACE Engineers
Projec4 Budge¢ Worksheet- 2024
Project N. -i
Project q:
Reimhursable
i
Cilof Tukwila -Phage 18801
22646 Billing Group q:
$fi999
Location:
Task q:
43rd Avs Sand S 137th St
Pe [Appl t �F (ROW) �
Prepared By:
Date:
Brian,
Christian, Tasha, Coen
11/16/2024
Sraff Type k lSea L-, Rates Table)
Staff Type Hourly Rate
Staff Nsme(optienall
Dra�ving/fask Title
Labor
Code
105.00%
lob
Title
I 1 1 I
1 I 2 1 5 j 13 I
$392 $392 I $233 $233 I
Ken Pam Brian Tasha
Sr. Pri ncipeI Sr. Principal Sr. L -d -pe Sr. Pralect
Engineer Planner Architect Engineer
I
13 I
$233
Christian
Sr. Pralect
Engine
Labor H®um Classlflcatlon
1 1
16 j 112 j
$174 $159
Engineering Sr. Project Ad Survey
Staff 11 nis[mtor
1
43 j
$233
Desn
Prolect Two
Manager
I
58 I
$2fi5
-Person
Crew Survey
1 I
113 j 74 I
$174 $174 1
TechV CADTec1,111
73
$204
Nick
Project CAD
Tech
Heur Total
Dollar Total
CBP3 stormwater facility feasibility ane lysis
Property acquisition feasibility analysis
CAD: Conceptual plan
1
1
1
I
I
1
1
1
I
1
I
3$&K10t4jEC�Md'Y4i@Hfrt$(SY „
1
I
Y
1
1
1
1
I
I
I
I
I
I
1
1
1
1
1
1
1
I
I
I
1
1
I
I
I
H -ting. a nd Prolect Management
4
40 1
16 I
1G I
1
1
2 1
I
1
1
78.9
$18,45999
QA/QC
8 I
1
1
I
I
1
1
2 1
I
1
I
19.9
$2,885.40
Subconsultant Coordination
8 1
g I
4 I
1
1
1
I
1
I
29.9
$4,fi62.90
Suhtask 1.1 ROE Coordination
4
8
32
8
52.9
$9,929.40
Subtask l.2 ROW Permi[Ccortlina[icn
2
5
5
12.9
$2,593.20
Trek -2 S1Se Ins/e&CFgaG'afi mndRe&Yah,, ,
Suhtask 2.1-Topograph cSurvey
2
24
80
32
138.9E$27,442.60
Suhtask 2.2- Site Reconnaissance/Review
1
1
1
10 1
10 1
1
1
1
I
1
I
29.9
Tiafv4 jflajJ94XWtl RerAstWatld flaaamfnoFldaYfntt , r , ,
Subtask3.1-Draft Pipe Assessment Report
1
1
2 1
1
10 1
16 1
1
1
I
1
I
28.9
Subtask3.2-Final Pipe Assessment Report
2
4
4
19.9
1
r
r
1
1
r
r
r
1
r
1
Sit&Inyga$'igat7+an;Rr'[pv1K, ,
...... 1,
, r
, , r
, , l
.........
, r
,
Subtask 4.1 -Prelim St I-tgat R p Hand
Recommentla[ons
I
4
1
1
2
I
32
I
20
1
40
1
8
1
I
1
I
24
6
136.0Subtask
4.1.1- Review of Kramer, Chin&Maya Stutly
8
8
12
28.9
Subtask 4.2 Final site nvestigation report - Adtlress ing City
Comments
2 I
1
2 1
fi I
6 I
4 1
4 1
1
I
1
1
24.0
$5,199.60
I
1
1
I
I
1
1
1
I
1
I
Subcons.Itant Report Sections- In Geotechnical Fee
I
1
1
I
I
1
1
1
I
1
I
Geotechnical report for the cause of landshtle(Gee Engin ea r)
L --nude mitigation feasibility
I
I
1
1
1
1
I
I
I
I
1
1
1
1
1
1
I
I
1
1
I
I
Hours Total
Labor Total
15.91
$5,4431
4.91
$1,210 i
68.91
$15,851 i
59.91
$1 S,G4S i
'3.91
$19,34] 1
113.01
$19,696 i
29.91
$3,1]1 1
2'.01
$6,5271
89.91
$21,165 1
32.91
$5,578 i
24.91
$4,183 1
G.0
$1,222
556.9
1
($122,043.60
Ex sossa
Reimhursable
i
Pr 1 tAtl ['t ( t t t tl th)
$fi999
Quan Cost
61 $369.99
Postage/Cou e (FED EX ROE Packets
Pe [Appl t �F (ROW) �
if $39999
f'hatn/V des
................................. ........... ....
M leageRrava VPerD em
........ ...
..........
$200.09
...................... ,,,,,,,,,,, ,,,,,naso
M11 lta o
...
,,,.,.,. 1 ....,,,..
Tota
$1,660.09
Subooneuttants
lJtlllty Lo t / $2,800
GCNInp /R p 4 f $fi 000
Electrical Eng n
G--Mill
eatech LE 8 $64350
&CEng leer
Subconauttanl Subtortd 63,150.90
Ma kup 10%
..........................................
Tota $69,465.00
PACE BiIIed Labor Tota $122,043.60
Relmbursahle Expenses $1,6fi0.09
Subccnsultalt $69,465.00
Total Protect Budge 193,168.60
File: Phase IIIB Budget Worksheet.xlsx, Fee Worksheet Page 1 of 1 Printed: 1111912024, 3:32 PM
2024 STANDARD
HOURLY RATE SCHEDULE Water I Land I Infrastructure I Facilities
Effective January 1, 2024
DESCRIPTION
1.
Office Tech I, Expediter 1
HOURLY RATE
$ 65.00
2.
Office Tech 11, Expediter 11, Survey Field Tech
$ 80.00
3.
Intern, Survey Tech I, Jr. CAD Tech, Jr. Inspector, Office Tech 111
$ 100.00
4.
Designer, Jr. Planner, Survey Tech 11, CAD Tech, Inspector, Sr. Office Tech, Jr. Ecologist/Scientist
$ 120.00
5.
Jr. Engineering Staff, Designer I, Planner, GIS Tech, Survey Tech III, CAD Tech I, Inspector 1,
Project Administrator, Ecologist
$ 136.00
6.
Landscape Architect, Engineering Staff I, Designer II, Planner I, Survey Tech IV, GIS Analyst I, CAD
Tech 11, Inspector 11, Sr. Project Administrator, Ecologist I,
$ 151.00
7.
Landscape Architect I, Engineering Staff 11, Designer III, Planner 11, GIS Analyst 11, CAD Tech III,
Inspector III, Survey Tech V, Ecologist 11
$ 166.00
8.
Landscape Architect 11, Project Designer, Planner III, Sr. Survey Tech, GIS Analyst III, Engineering
Staff III, Sr. CAD Tech, Sr. Inspector, Scientist, Ecologist 111
$ 181.00
9.
Landscape Architect III, Engineering Staff IV, Project Designer I, Sr. Planner, Project Surveyor,
Sr. GIS Analyst, CAD Manager, Project CAD Tech, Sr. Project Inspector, Survey Field Tech I,
One -Person Crew, BIM Manager, Ecologist IV, Engineer IV, Scientist 1
$ 194.00
10.
Landscape Architect IV, Project Engineer, Project Designer II, Project Planner, Sr. Project Surveyor,
Sr. Project GIS Analyst, Structural Engineer, UAS Pilot, Scientist II, Ecologist V
$ 209.00
11.
Sr. Landscape Architect, Sr. Project Engineer, Sr. Structural Engineer, Sr. Project Designer,
IT Manager, Sr. Project Planner, Survey Project Manager, Tech Services Manager,
Sr. Ecologist/Scientist
$ 222.00
12.
Principal Ecologist/Scientist, Project Manager, Principal Surveyor, Planning Project Manager
$ 238.00
13.
Sr. Principal Ecologist/Scientist, Sr. Project Manager, Sr. Principal Surveyor, Two -Person Crew
$ 252.00
14.
Principal Engineer, Principal Planner, Sr. Two -Person Crew
$ 272.00
15.
Sr. Principal Engineer, Sr. Principal Planner
$ 288.00
A.
REIMBURSABLES
Subconsultants, Professional and Technical
Cost + 15%
B.
Project Administration $60.00/Invoice
C.
Maps, reports, materials, permit fees, express delivery and messenger,
pass-through bills, and similar items necessary for work in progress
Cost + 15%
D.
Out -of -Town travel per diem and cost of commercial transportation
Cost + 10%
E.
Transportation within 30 Mile Radius *
No Charge
Transportation beyond 30 Mile Radius -Automobile At Approved IRS Rate
* On job inspection mileage will be billed At Approved IRS Rate
F.
Copies: Legal, Letter, Ledger
$ 0.25/page
Large Format Blueprints and Reproduction (18" x 24" or larger
$ 3.00/sheet
G.
Expert Witness
Rate x 1.5
Notes: ' All payment is due within 30 days from date of invoice. A monthly service charge of 1 1/10 will be added on all accounts
older than 30 days.
2 The foregoing schedule of charges is incorporated into the agreement for the services provided effective
January 1, 2024. After December 31, 2024, invoices will reflect the schedule of charges in effect at that
time.
R,e , 2/2/2024
1101 Fawcett Avenue, Suite 200
Tacoma, Washington 98402
253.383.4940
November 19, 2024
PACE Engineers, Inc.
11255 Kirkland Way, Suite 300
Kirkland, Washington 98033
Attention: Brian Way, PLA, ASLA
Subject: City of Tukwila
South 131St Place Drainage Improvements - Culvert Replacement
Phase 3b Scope
Tukwila, Washington
File No. 0259-061-00
f
The following scope and fee provides additional environmental and geologic/geotechnical services for the
South 131St Place Drainage Improvements Project in Tukwila, Washington. Our understanding of the
requested services is based on a site visit and coordination call with PACE Engineers, Inc. (PACE) and City
of Tukwila representatives on October 21 and October 25, 2024. Based on this coordination, it is our
understanding that Phase 3b of the project will entail assessment of the Middle Fork of Southgate Creek
in the vicinity of South 137th Street, 43rd Avenue South and Macadam Road South, including an adjacent
landslide area that has resulted in closure of 43rd Avenue South.
The scope of services described below are anticipated to be approved through the amendment of our
existing subcontract with PACE pursuant to PACE's contract with the City of Tukwila for the project. The
tasks below will be completed as new/additional subtasks to the following existingtasks within our existing
agreement.
Task 6. Geotechnical Engineering Services
Task 9. Environmental Permitting
City of Tukwila I November 19, 2024 Page 2
,.:i i'VAW]Nmm. c
We understand that the new survey area includes a landslide that resulted in the closure of 43rd Avenue
South. During this data gathering phase, we have been requested to complete a reconnaissance level
survey to assess geologic hazards, including landslide hazards, earthquake hazards, volcanic hazard and
associated risks, and to address code requirements for these hazards consistent with Tukwila Municipal
Code (TMC) 18.45.120. Potential geologically hazardous critical areas, such as landslides, will be assessed
and delineated within the survey limits as shown in Exhibit A. Surveyable durable markers, such as nails or
screws, will be placed at key locations in the delineated landslide area. A geotechnical report will be
prepared consistent with the requirements of TMC 18.45.040 for submittal. The report will include
recommended site-specific landslide and erosion hazard zones, volcanic hazard zones and earthquake
hazard zones, as well as options for potential mitigation measures, if necessary.
1. Review and compile available pertinent documentation related to the geology, steep slopes and
landslides, erosion and other potential geologic and seismic hazards at the project site from
Washington State Department of Natural Resources (DNR) and other pertinent publicly accessible
sources.
2. Obtain publicly accessible lidar data from the DNR to generate hillshade and topographic maps for the
site and adjacent slopes and interpret and map landslides and potential erosion areas.
3. Complete a planning -level site visit with the City of Tukwila and PACE staff.
4. Complete a geologic reconnaissance of the project area as shown on Exhibit A. We will observe exposed
surface soils. We will also note observed indicators of slope instability such as scarps, leaning trees
and seeps or springs. The site visit will also include assessment of potential slope restoration areas for
developing recommendations to control sediment transported from the slope to stream.
5. Complete the installation of surveyable markers within landslide areas suspected of ongoing movement
for future monitoring.
6. Markers and features such as cracks will be marked with paint or survey flagging for subsequent
professional land survey by PACE and incorporation onto the project base map.
7. Prepare a geotechnical report based on the requirements of TMC 18.45.040 for both landslide hazard
and erosion hazard areas to include a Critical Area Site Plan. Identify potential erosion mitigation
measures for the area affected by the landslide and suggest suitable ongoing monitoring measures.
The report will also include discussion and recommendations related to potential slope stabilization
measures to control sediment transport from landslide to stream.
8. Attendance of an Associate at four of the one hour biweekly design meetings with the City of Tukwila
and/or PACE during the execution of this phase.
9. Provide consultation and technical support to PACE during the duration of this phase related to the
final summary documentation on findings.
10. Project management, accounting and administrative support during execution of scope identified
a bove.
File No. 0259-061-00
City of Tukwila I November 19, 2024 Page 3
The purpose of this task is to identify, document and delineate regulated aquatic critical areas (wetlands
and streams) within the Phase 3b assessment area survey limits as shown on Exhibit A. This specifically
includes:
Review available project -specific data and publicly available wetland, stream, wildlife and soil
databases within the new areas to be surveyed.
Complete a planning -level site visit with the City of Tukwila and PACE staff.
Complete a site reconnaissance to identify and delineate wetlands and stream ordinary high water
mark (OHWM) within the assessment area that are protected by federal, state or local regulations.
❑ We will delineate and flag the OHWM of streams within the Phase 3b assessment area limited to
the stream section from Macadam Road South upstream to South 137th Street. Reconnaissance
level assessment of stream conditions (no OHWM delineation) will be completed upstream of South
137th Street near the intersection of 44th Avenue South.
❑ If wetlands are identified, we will flag wetland boundaries, collect wetland test plot data and rate
each wetland accordingto the current 2014 Washington State Wetland Rating System for Western
Washington.
❑ Wetlands and streams will be marked in the field with survey flagging for subsequent professional
land survey by PACE and incorporation onto the project base map.
Prepare a standalone wetland report for this phase of work presenting the findings associated with the
new survey areas. Wetland and stream ratings and regulatory buffers will be included in the report and
will be based on the City of Tukwila municipal code.
Attendance by an Associate atone hour biweekly design meetings with the City of Tukwila and/or PACE
for the duration of this phase (eight biweekly meetings).
Provide consultation and technical support to PACE during the duration of this phase related to the
final summary documentation on findings.
Project management, accounting and administrative support during execution of scope identified
a bove.
ASSUMPTIONS
• The phase duration is anticipated to be 16 weeks. Effort associated with project management and
meetings for each task identified above is based on this schedule.
• The extents of geologic/geotechnical assessment include the 43rd Avenue South right-of-way (ROW)
between approximately South 136th Street and South 137th Street.
• The City of Tukwila will provide prior documents and reports, if any, pertaining to the slide and pertinent
to the investigation.
• For geotechnical reporting, a full report may not be feasible if the extents of the project are not
determined.
• Monitoring of the markers installed as part of Task 6.4 will be scoped and performed as part of a future
task.
File No. 0259-061-00
City of Tukwila I November 19, 2024
Page 4
The extents of additional wetland/stream delineation areas associated with this phase of work are as
follows:
❑ Wetland and OHWM delineation will be completed from the intersection of South 137th Street and
43rd Avenue South, extending west of 43rd Avenue South approximately 100 feet, south of South
137th Street to the edge of ROW, and north from South 137th Street to Macadam Road South, as
well as north of Macadam Road South to the edge of existing ROW.
❑ Wetland and stream reconnaissance will be completed south of South 137th Street to the edge of
existing ROW and extending approximately 50 feet onto adjacent private parcels, provided right -of -
entry is obtained.
Wetland/stream assessment is anticipated to be completed in one field day.
The Professional Land Survey of the OHWM, wetland boundaries and/or surveyable landslide markers
will be provided by PACE and is not included.
Documentation of wetland/stream findings associated with the new survey area will be incorporated
into a new, standalone Critical Areas Report for the project.
This scope and fee estimate does not include any permitting associated with critical areas.
All support outside of the above stated scope is to be provided on a time -and -material basis under
separate authorization.
r
"1116141:111
The fee for our services will be determined on a time and materials basis using the rates contained in our
2024 Standard Schedule of Charges, which is attached to this proposal. We will endeavor to keep you
apprised of project status and conditions that may significantly affect our scope and estimate. The total
estimated fees for the work described above are presented in the table below.
Total $54,350
There are no intended third -party beneficiaries arising from the services described in this proposal and no
party other than the party executing this proposal shall have the right to legally rely on the product of our
services without prior written permission of GeoEngineers.
File No. 0259-061-00
City of Tukwila I November 19, 2024
Page 5
This proposal is valid for a period of 60 days commencing from the first date listed above and subject to
renegotiation by GeoEngineers, Inc., after the expiration date.
Sincerely,
GeoEngineers, Inc.
A'�� 4
Nathan Otto
Project Geologist
ti 4L>
Cat—
David B. Conlin, MA, PWS
Associate
N0:1F'fkl9:If BC:I..JS::atk
Attachments:
Exhibit A
Schedule of Charges - GeoEngineers Standard 2024
k
Emily R. H rn
Senior Environmental Scientist
Lyle J. Stone, PE
Associate Geotechnical Engineer
File No. 0259-061-00
I
Page 1 of 2
Our compensation will be determined on the basis of time and expenses in accordance with the following schedule unless a
lump sum amount is so indicated in the proposal or services agreement. Current rates are:
PROFESSIONAL STAFF
Staff 1 Scientist
$
146/hour
Staff 1 Engineer
$
154/hour
Staff 2 Scientist
$
167/hour
Staff 2 Engineer
$
175/hour
Staff 3 Scientist
$
191/hour
Staff 3 Engineer$
198/hour
Project Scientist 1.
$
220/hour
Project Engineer 1
$
228/hour .
Project Scientist 2.
$
228/hour
Project Engineer 2
$
234/hour
Senior Engineer/Scientist l
$
255/hour
Senior Engineer/Scientist 2
$
279/hour .
Associate
$
292/hour
Principal
$
320/hour
Senior Principal
$
340/hour
TECHNICAL SUPPORT STAFF
Administrator 1
$
103/hour
Administrator 2
$
119/hour
Administrator 3
$
136/hour
CAD Technician
$
132/hour
CAD Designer
$
155/hour
Senior CAD Designer
$
180/hour
GIS Analyst
$
165/hour
Senior GIS Analyst
$
180/hour
GIS Coordinator
$
200/hour
*Technician
$
114/hour
*Senior Technician
$
136/hour
*Lead Technician
$
146/hour
Geotechnical Construction Specialist
$
191/hour
Environmental Database Manager
$
226/hour
Health and Safety Specialist
$
146/hour
Health and Safety Manager
$
200/hour
*Hours in excess of 8 hours in a day or 40 hours in a week will be charged at one and one-half
times the
hourly rates listed
above.
Contracted professional and technical services will be charged at the applicable hourly rates listed above.
Staff time spent
providing expert services in disputes, mediation, arbitration and litigation will be billed at one and one-half times the above
rates. Time spent in either local or inter -city travel, when travel is in the interest of this contract, will be charged in accordance
with the foregoing schedule. A surcharge may be applied to night and weekend work. See proposal
for details.
Rates for data storage and web -based access will be provided on a project -specific basis.
Associated Project Costs (APC) equal to six percent (6%) of professional fees will be assessed. This
fee allows
GeoEngineers
to invest in the necessary infrastructure to ensure we provide our clients with the latest technological
and data security
standards. The investments include maintaining and advancing technical tools and platforms
across
all aspects of our
business, and strengthening our defenses against cyber threats to ensure data remains secure.
These costs
are not included
in our hourly rates or direct expenses.
Schedule_GeoEngineersStandard-2024 WI EERY
Page 2 of 2
EQUIPMENT
Air Quality Equipment, per Day
$
210.00
Air Sparging Field Test, per Day
$
110.00
Air/Vapor Monitoring Equipment (PID, 5 -Gas Meter), per Day
$
110.00
Asbestos Sample Kit Each
$
30.00
Blastmate, per Day _
$
120.00 .
D&M Sampler, per Day
$150.00
DO (Dissolved Oxygen) Kit, Each
$
25.00 .
Dynamic Cone Penetrometer, per Day
$45.00
E -Tape (Electric Tape), per Day
$
35.00 .
Electric Density Gauge, per Day
$
110.00
Electric Density Gauge, per Week
$
430.00
Electric Density Gauge, per Month
$
1,400.00
Environmental Exploration Equipment, per Day
$
225.00
Field Data Acquisition Equipment (Field Tablet), per Day
$55.00
Field Tablet per Week
$
200.00
Field Tablet, per Month
$
750.00
Field Tablet with Cellular, per Day
$
75.00
Field Tablet with Cellular, per Week
$
300.00
Field Tablet with Cellular, per Month
$
1,000.00
Field Gear/ Reconnaissance, per Day
$
55.00
Gas Detection Meters, per Day
$
105.00
Generator, per Day
$
110.00'
Groundwater Pressure Transducer w/ Datalogger, per Day
$
55.00
Groundwater Pressure Transducer w/ Datalogger, per Week
$
220.00
Hand Auger, per Day".
$
100.00
Inclinometer Probe, per Day, 1 Day minimum
$
210.00
Interface Probe, per Day
$
65.00
Iron Test Kit, Each$
-.
25.00'
Laser Level per Day
$
60.00
Low Flow Groundwater Sampling Equipment, per Day
$
235.00
Multiparameter Water Quality Meter, per Day
$
85.00
Nuclear Density Gage, per Hour, 1/2 Day minimum
$
15.00
Peristaltic Pump, per Day
$
50.00
pH Probe,/Meter per Day
$
20.00
PID, FID or OVA, per Day
$
130.00
Rock/Slope Fall Protection/Rigging Equipment, per Day
$700.00
Saximeter, per Day
$
60.00
Scuba Diving Gear, per Day/per Diver
$
700.00
Shallow Soil Exploration Equipment, per Day
$
60.00
Soil Field Screening Equipment, per Day
$
20.00
Soil Sample Kit, Each,.
$
20.00
Steam Flow Meter, per Day
$
20.00
Strain Gauge Readout Equipment, per Day
$
50.00
Surface Water Flow Meter, per Day, 1/2 day minimum
$
50.00
Surface Water Quality Monitoring Equipment, per Day
$
50.00
Turbidity Meter, per Day
$
50.00
Vehicle usage, per Mile, or $30/half-day, whichever is greater
$
0.65
Specialized and miscellaneous field equipment not listed above will be quoted on a project -specific basis.
Charges for services, equipment, supplies and facilities not furnished in accordance with the above schedule, and any
unusual items of expense not customarily incurred in our normal operations, are charged at cost plus 15 percent. This
includes shipping charges, subsistence, transportation, printing and reproduction, miscellaneous supplies and rentals,
surveying services, drilling equipment, construction equipment, watercraft, aircraft, and special insurance which may be
required. Taxes required by local jurisdictions for projects in specific geographic areas will be charged to projects at direct
cost.
Per diem may be charged in lieu of subsistence and lodging.
Routinely used field supplies stocked in-house by GeoEngineers, at current rates, list available upon request.
In-house testingfor geotechnical soil characteristics at current rates, list available upon request.
All rates are subject to change upon notification.
Schedule_GeoEngineersStandard-2024 WI EERY
Figure 5. S 131St Drainage Improvement ProjectMap
PhaseI Ep1UONS IUN EMMUNNYM IUN EMMUNINA IN
Phase II
Phase III ------
City of Tukwila Agreement Number: 22-102(c)
Council Approval 6/3/24
• 6200 Southcenter Boulevard, Tukwila WA 98188
CONTRACT FOR SERVICES
Amendment # 3
Between the City of Tukwila and PACE Engineers, Inc.
That portion of Contract No. 22-102 between the City of Tukwila and PACE Engineers, Inc. is hereby
amended as follows:
Section 2: Scope of Services. Work under this contract shall be amended to include
reimbursement for direct expenses and costs associated with the additional contract scope of
services as described in Exhibit A, attached.
Section 4: Payment. Payment is hereby changed to include an additional $139,733.00 for this
additional scope of services. See Exhibit A. The maximum amount payable under this contract as
amended inclusive of all fees and other costs shall not exceed $531,223.00 without express written
modifications of the Agreement signed by the City.
All other provisions of the contract shall remain in full force and effect.
Dated this 5th day of June 12024
CITY OF TUKWILA CONTRACTOR:
[EDS DocuSigned by:d� Ebw�aS 6tiLG(,"4
SEE24380545B44C...
Thomas McLeod, Mayor 6/5/2024 1 11: 54 AM PDT
ATTEST/AUTH ENTI CATED:
DocuSigned by:
3D04A69746FA4E8...
Andy Youn, City Clerk
APPROVED AS TO FORM:
DocuSigned by:
0. IC(.I�.Q.
5E499CA4165E452...
Office of the City Attorney
By: Z—, -qtr
Printed Name: Kenneth H Nilsen
Title: President
CA Reviewed May 2020 Page 1 of 1
WATER I LAND I INFRASTRUCTURE I FACILITIES
SCOPE OF WORK
SOUTHGATE CREEK DRAINAGE IMPROVEMENT PHASE II
PHASE IIA— FEASIBILITY
PROJECT UNDERSTANDING
The City of Tukwila (City) has requested that PACE suspend the original scope and budget for the
131 st Street Drainage Improvements project following the Department of Ecology Stormwater
Grant submittal and develop a new scope and budget for a comprehensive drainage
improvements feasibility study that encompasses a greater area and includes more drainage
elements to address the flooding on S.131 st Street. This feasibility study is the initial stage for the
Phase II project, now being labeled as Phase IIA, with the future Phase IIB being final design
documents.
Prior modifications to the original scope of work requested by the City for this project included
additional topographic survey, basin analysis and modeling, the hydraulic design report and 30%
plans, and the site feasibility/site investigation report. PACE prepared an Additional Services
Agreement (ASA) in March 2023, and prepared a second Draft ASA in December 2023 for this
additional work requested by the City beyond the project scope.
As an alternative to proceedingwith an additional ASAto modify the existing budget forthe
expanded scope, the City requested that PACE use the existing budget to complete the necessary
tasks, to suspend the current design effort, and prepare documents needed for a grant application
which has been done. Any funds remaining after those above-described elements are complete
would be allocated the new Phase IIA scope and budget.
This effort included the following:
1. Terminate the current project design at 30%, with the addition of adding notes and impact
exhibits, along with an environmental design narrative for Washington Department of Fish
and Wildlife (WDFW) review. (completed)
2. Finalize reports, fee estimate, and documents for a grant application for Department of
Ecology (Ecology) Stormwater Grant. (completed)
3. Prepare a scope and fee proposal for the Phase IIA feasibility tasks including an expanded
project area requiring additional survey, hydraulic design, stormwater (flow control and
water quality) evaluation, and conceptual stormwater options. (this document)
It is our understanding that the project originally scoped under City of Tukwila contract 22-102 for
South 131st Street. Drainage Improvements is considered complete as of the Department of
Ecology Grant submittal, with any remaining funding to be allocated towards the new scope for the
Southgate Creek Drainage Improvements Phase IIA Feasibility Study.
3501 Co�by Avenue, Suite 101
:,veirett, Washington 91.3201 4794
May 10, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIA
Scope of Work
Page 2 of 7
PACE is proposing the following scope and fee for the Southgate Creek Drainage Improvements
Phase IIA Feasibility Study.
SCOPE OF WORK
PACE will provide administration and coordination throughout the duration of the project,
including coordination of survey and subconsultants, contracting and invoicing, scheduling,
and client coordination. PACE will conduct regular coordination and update meetings virtually
with City of Tukwila and GeoEngineers at project milestones and as needed. The following
tasks are anticipated:
■ Develop approach and scope for the Phase IIA Feasibility Study
■ Bi -weekly project check-in meetings. It is assumed there will be eight (8) meetings,
two (2) hours each for two (2) PACE staff, including preparation of agenda and
meeting minutes.
■ Conceptual hydraulic design development and review with the City,
■ Review / Check-in meetings for each component of the Hydraulic Feasibility
Analysis Task 4, (8 meetings total).
■ Project invoicing, progress reports and team coordination. For the purpose of
budgeting, PACE has assumed the project will continue for 16 weeks through the
completion of this scope. If the project continues beyond this period, services will
be considered additional to the scope of this proposal. Prior to any additional work
being performed, PACE will provide the Client with an estimate of fees to continue
with these tasks.
■ Meeting agendas and minutes (8 Total)
■ Monthly invoicing with progress reports (4 Total)
Up to two (2) PACE project team staff will conduct a single site visit to understand the site-
specific conditions. Qualitative observations concerning existing vegetation, riverbank
conditions, exposed stormwater features, and exposed highway features will be documented
in field notes and site photos.
It is assumed that City staff will accompany PACE and will provide PACE with any available
as -built information.
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May 10, 2024
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City of Tukwila
131st Drainage Improvements Phase IIA
Scope of Work
Page 3 of 7
PACE will extend the topographic survey conducted in January 2023 for the South 131st Place
Drainage Improvement Project. Survey control will be extended to gather information on
approximately 1200 linear feet of existing ditches adjacent to SR 599, existing Southgate
Creek east of Macadam Rd S, a portion of S 134th PL along the south westerly margin.
Together with ditch lines along the southern edge of Right of Way along S 133rd Street approx.
350 linear feet. Together with additional mapping along the southeasterly margins of S 131St
PL along with 44" AVE S between King County Tax Lots 7349200245 and 7349200340.
Together with topographic elements for portions of King Cou nty Tax Parcels; 261320087,
000480003,2716000030,2613200028,0004800002,2613200133,26132000085,
7349200340,7349200255,7349200225,7349200220,7349200095,7349200040,
7349200005, 7349200345, 0004800003, 0004800014 and 2716000030 as depicted in pink on
attached Exhibit "A". Together with topographic elements within tax lot 2613200134 also
depicted in pink on attached Exhibit "A". Survey will also include outfall of stormwater pipe of
Southgate Creek downstream of the SR 599 culvert as well as the outfall at the confluence
with the Duwamish River.
1. Topographic Survey- Shall include but is not limited to the following:
■ Channel thalweg (deepest point) at 50 ft intervals, and break lines including toe of
stream bank, top of bank, any terraces or major bars or other features, and
floodplain lying 30' either side of edge of channel.
■ Water surface elevations (as required).
■ Major channel angle points.
■ Wetlands flag and ordinary high water (OHW) delineations.
■ Culverts with invert elevation and size.
■ Efforts will be made to show Sound Transit Light Rail columns and downspouts
where accessible or within 20' of survey limits
■ Hardscapes such as walks, driveways, etc.
■ Planted ornamental trees
■ Retaining walls and rockeries
■ Fencing, curb, pavement and gravel edges
■ Roadway markings and signage
■ Surface indications of utilities, such as vaults, pedestals, irrigation etc.
■ Utility lines that can be visually observed, located by RF locating equipment (APS
estimate fee of $2,875.00), or identified on readily available record drawings.
■ Sewer and storm structures will be measured for invert elevations, size of pipe, and
size of structure.
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22546
City of Tukwila
131st Drainage Improvements Phase IIA
Scope of Work
Page 4 of 7
■ Any tree 8 -inch in diameter or greater as measured 4 feet above the ground.
■ Contours will be generated at a 1 -foot interval.
PACE survey team will thoroughly investigate and integrate relevant information accessible
from City data sources, whether readily available or provided. Any additional time due to
unforeseen issues or out of scope work will be billed on a Time -and -Expense (Rates) fee basis
only after City's approval.
The above scope of work and related fee has been based on the following assumptions:
■ Any right -of -entry to be secured by the City. PACE has identified eighteen (19)
private ownership lots that will be in the vicinity of the survey. Full access is not
needed for all lots. However, notification that we will be working near their
properties is advised.
■ Any OHW and Wetland delineation flags will be hung by GeoEngineers prior to the
commencement of the field survey.
■ Re -mobilizations or additional work based on areas or features of concern that
were not originally discussed; areas identified by other specialists (Biologists,
Arborists, etc.) after the initial field work or those areas which were not accessed
due to safety or limitations of time.
■ King County GIS parcel lines will be used to show appropriate right of way and
property lines. No ownership or occupancy will be apart of this Survey.
■ This Task is a Topographic Survey and not a Boundary Survey.
■ Topographic mapping data will be provided in AutoCAD C3D 2021, per PACE ACAD
standards.
w
To fully evaluate the potential benefits of modifying Southgate Creek with the associated
contributing stormwater run-off, the following analysis is broken down into four subtasks. The
Hydraulic Feasibility Analysis will be summarized into a single report. The named properties
described in this proposal are as follows: NorMed Property (Parcels 734920-0095 and
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May 10, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIA
Scope of Work
Page 5 of 7
7349200040), Triangle Property (Parcels 2613200134 and 261320087), and Masonry
Property (Parcel 7349200340).
1. PACE will evaluate how much detention storage and water quality treatment can be
provided in parcels 2613200134 and 261320087 (the Triangle Property), through a
WWHM® or MGSFIood® hydrologic model.
2. PACE will explore the feasibility of installing both traditional and low impact
development detention/water quality BMPs in the Triangle property.
3. PACE will provide H&H modeling files identifying water quality and flow control
benefits for up to three (3) schematic design options (or menu of options) for City
review and selection of their preferred design option.
4. Following the City's approval of the preferred alternative, PACE will prepare a
Technical Memo summarizing the options and the City's preferred alternative which
will be used as the Basis of Design going forward.
5. Upon receiving approval from the City for the preferred design option, PACE will
prepare stormwater park conceptual plans and a graphic based on the size of the
stormwater features selected.
1. PACE will analyze the S 133rd Street stormwater network, including the existing
bypass system in the commercial parking lot and at the 133rd intersection, to
assess functionality, determine how much flow is being conveyed to the mainstem
verses being bypassed.
2. PACE will evaluate how much conveyance capacity the mainstem Southgate Creek
can provide through the Triangle and/or Masonry properties with upgraded culverts
at S 133rd Street and 44th Avenue S.
3. PACE will prepare a conceptual plan showing the proposed modifications to be
included as an exhibit in the Hydraulic Analysis Report.
1. Building on the previous task, assuming both 44th Avenue Sand S 133rd Place
crossings were upgraded, PACE will explore the possibility of connecting the
Masonry property and the wetland behind NorMed with an additional back channel
alignment through stream grading and hydraulic modeling.
2. PACE will create a Civil 3D surface model for the additional back -channel
alignment. Civil 3D CAD works to show conceptual landscape and hydraulic layout
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May 10, 2024
22546
City of Tukwila
131st Drainage Improvements Phase IIA
Scope of Work
Page 6 of 7
for communication uses. Stream grading and alignment design for the additional
back channel alignment. This evaluates the hydraulic capacity the back channel and
stormwater park can provide. This grading will be used in the SRH -2D model and
conceptual figures.
3. PACE will prepare a conceptual plan as an exhibit that will include the back -channel
alignment and conceptual grading. This will be incorporated into the final Hydraulic
Analysis Feasibility Report.
1. PACE will explore the feasibility of installing both traditional and low impact
development detention/water quality BMPs in the City right-of-way along S 134th
Place.
2. PACE will determine the level of water quality treatment that can be provided along
South 134th Place.
3. PACE will prepare the channel section conceptual design along South 134th Place
for flood control.
■ The treated stormwater can discharge into the Southgate Creek buffer that is also
proposed to be re -graded to provide flood plain functions for Southgate Creek.
■ Roadway design and utility relocation are not included in this phase.
Hydraulic Feasibility Analysis Report
4.1 Stormwater Park Flow Control and Water Quality Evaluation
Summary of three options and preferred alternative
H&H Modeling Files (3 Design Options)
Stormwater Park conceptual Plans & Graphic
4.2 Upsize 44th Avenue and South 133rd Intersection Culverts
Conceptual plans showing culvert modifications
4.3 Additional Back Channel Design
Civil 3D surface model
Back Channel Conceptual Plans
4.4 South 134th Place Flow Control and Water Quality Evaluation
S 134th Place WQ and channel section conceptual plans
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131st Drainage Improvements Phase IIA
Scope of Work
Page 7 of 7
■ ■ ■
PACE will check-in with the City and receive feedback during each step of the evaluation,
included as part of the budget allocated under Task 1. PACE has included time in this task to
address City comments and feedback provided for the consolidated report.
1. Once all the evaluations described in Task 4 are completed, PACE will consolidate
the sections into a single document, the "Hydraulic Analysis Feasibility Report for
Phase IIA", then PACE will submit the report to the City for Review.
2. PACE will revise the report based on comments received from the City and resubmit
a Final version. For the purpose of establishing a budget for this proposal, PACE has
allocated up to twenty-four (24) hours for two (2) review cycles. If additional review
cycles are needed or changes are requested to the Task 4 evaluations, those
services will be considered additional to the scope of this proposal. Prior to any
additional work being performed, PACE will provide the City with an estimate for the
fees (Time -and Expense), based on the current rates to continue with this task.
GeoEngineers has provided the attached wetland and stream delineation services as a sub -
consultant to PACE Engineers, Inc.
PROJECT COST
The costs associated with the above-described work are shown on the attached spreadsheet.
Fees shown in the summary table below outline the current balance and requested contract
amendment.
ESTIMATED PROJECT COST PHASE IIA.............................................................................$ 231,355
MANAGEMENT RESERVE FUND PHASE IIA.......................................................................
8 25,000
SUBTOTAL PHASE IIA..............................................................................................
$ 256,355
ORIGINAL CONTRACT AMOUNT.......................................................................................
$371,610
AMENDMENT #1 Site Investigation Report..........................................................................
$19,880
AMENDMENT#2................................................................................................Contract
Extension
TOTAL CO NTRACT AMOU NT............................................................................................
$391,490
BILLED TO DATE (4/18/2024)............................................................................................$
274,868
BALANCE ON EXISTING CONTRACT................................................................................
8116,622
REQUESTED CONTRACT AMENDMENT......................................................................
$139,733
END OF SCOPE OF WORK
,,'j
11 PACE
N I/I;,I ,, ,.!,/Jk; 131N III IMFINAI,Ir-:IMN1O/I1,11 I,1II1HO111:;1 Mf NAI,Ir] MI II"n;Il ;:rx,I,r„i, Iuz�„I r��ill,;al�,�,i��,k l7r u.,-�, I1npr0ic,inf,i L 1111"-; llA
f:i"m po, c:iocx
Legend
N
Storm Catch Basin Sewer Pipe Street & Hwy Id
o Storm Drain Point Storm Ditch •••• -• Stream New Survey 0 85 170 340 Feet
Storm Pipe Water Line Parcel 2 -ft Contour
Legend
N
Storm Catch Basin Sewer Pipe Street & Hwy Previous Survey 2-ft Contour
o Storm Drain Point Storm Ditch •••• -• Stream Id 0 85 170 340 Feet
Storm Pipe Water Line Parcel New Survey
Legend
N
Storm Catch Basin Sewer Pipe Street & Hwy Previous Survey 2-ft Contour
o Storm Drain Point Storm Ditch •••• -• Stream Id 0 85 170 340 Feet
Storm Pipe Water Line Parcel New Survey
Legend
N
Storm Catch Basin Sewer Pipe Street & Hwy Previous Survey 2-ft Contour
o Storm Drain Point Storm Ditch •••• -• Stream Id 0 85 170 340 Feet
Storm Pipe Water Line Parcel New Survey
PACE Engineers
Project Budget Worksheet -2024 Standard P.—
Expen ses
Prolect Name 5131 st Place UYsineg61mpY0varnent Projleet-PartB
Prolect#: $9548 Billing Group#:
riease pore, anis prolecx .s ouegexee as a wnoie, nox oy.asx
Location:
TUka4W, WA
Task#:
reparetl By: KN/BW®TW
Date: 5/6/2024
Staff Type#IS- Labor Rates Table)
Staff TYPe Hourly Rate
Staff Name
Drawing/Task Title
Labor Hours by ClIessNOca9lon
Labor I I I I I I 1 I
Cod® 1 1 5 1 14 1 14 1 74 1 45 1 118 1 1
$288 $222 $209 $209 $166 $181 $151
Ken Brian Tasha Christian Dean April
Sr..., Sr. ...., ..., ., Si. Prated A ...., ...
lob Principal L-d—pe PI-q.,Prolect CADTech Si. Survey tlministrato
Title Engineer Architect Engineer Engineer III Tech
I I I
1 1 1
....,
Hour
Total
Dollar
Total
Phase IIA FEASIBILMY COST
I
I I
I
I I
I I I
I I I
Re mbursable E�yenses $500.00
I
Tntal
$500.00
Subcon.1— $38,170.00
Suboonaulten't5ub4ot®
34,00
Total Prolect Bud . 55.
Task 1: Prolect Management, Meetings&O®ordinadon
20
32 40
4
4
4
104
$23,448.00
Task 2: S. Reeonnelassnee
I I 1D
1 10
1 1
1 1 I
I I I 20
$4,180.00
Task 3- Survey and do. -Heron
$38,038.00
Teek4 - Hydmullo FBBSIb84yAnslysis
Subtask 4.1- Slormwater Park Flow Control&Water Quality Evaluation
Evaluate SL., mwa lei BMP, WWHM of MGSFIaod Model
2
I I
1 32 1 84
I I
I
1 44
I
I I
1 98 1
I I
I I I
1 1 1
I I I
I I I
1 1 1 260
I I I
$50,700.00
Prepare 35chematictlesign options
I I
I
I I
I I I
I I I
Prepare Tech Memo summarizing options
Create 3tl CAD motlel antl stream gratling
Prepare Stormwater Pard Conceptual Ran (1 sheet) antl Graphic
Subtask4.2-Upolm"th Ave& at S 133rdlMersecdon Culverts
Analyze S 1334 Storm Network
Evaluate conveyance .NIth upg,—d culvercs
2
1 2 1 30
I I
I I
1 4
I
I
1 26 I
I I
I I
I I I
I I I
I I I
I I I 64
I I I
I I I
$12,442,00
Prepare Conceptual Plan (1 sheet)
Subtesk4.3-AdditlonaU®ack Channel Oesipn
2
2 64
4
56
128
$24,528.00
Evaluate Stor rnwatni - back channel aligrrnen[
Create 3tl CAD motlel antl stream gratling
I I
I
I I
I I I
Prepare Conceptual Plan (1 sheet)
Subtask 4.4- S 134th Pt Flow COMrot and Water Quatlty Evatuadon
Evaluate BM Ps, Analyze level of WQ In the Clty ROW
2
I I
I 2 I 20
I I
I
I 124
1
I I
I 32 I
I I
I I I
I I I
1 1 I
I I I
I I I 180
1 1 1
$36,428.00
Prepare Conceptual Plan (1 sheet)
I I
I
I I
I I I
I I I
Task S- Agency Review and Response
4
4 8
8
24
$4,920.00
Final Hydraulic Feasiblity Report -address comments
I I
I I
I I
I I
I
I
I
I
I I
I I
I I
I I
I I I
I I I
I I I
I I I
I I I
I I I
I I I
I I I
PACE TOTAL
$192,685.00
I I
I
I I
I I I
I I I
I I
I I
I
I
I I
I I
I I I
I I I
I I I
I I I
I I
I
I I
I I I
I I I
I I
I
I I
I I I
I I I
Hours Total
LaboTol
$9,216
428 3,504
1
9,110
216.1
50
4.0 08.0
1 8 1 I
I I I 780.0
192685.0
5192,685.00
Expen ses
Reimbursable
riease pore, anis prolecx .s ouegexee as a wnoie, nox oy.asx
rate/unit
Postage/Courier
1
PMngCrt ,. ....
Electr calE gi_
I
�I
M t g /T I/P D
Got h I E g
i
$500 00
M scellaneous ,,,,,,,,,,
Re mbursable E�yenses $500.00
I
Tntal
$500.00
Sub—ulterda
riease pore, anis prolecx .s ouegexee as a wnoie, nox oy.asx
Utility Loc t
Mechanical Engines I
Electr calE gi_
.n
PACE BIIetl Labor Total $192,685.00
Got h I E g
i
$34 700
Re mbursable E�yenses $500.00
&CEg
Subcon.1— $38,170.00
Suboonaulten't5ub4ot®
34,00
Total Prolect Bud . 55.
Markup 1
10%
ioiall
$38,170
File: PHASE IIA for Southgate Creek Improv ems nts.xlsx, Fee Worksheet Page 1 oil Pdnod: 51612024,4:41 PM
2024 STANDARD
HOURLY RATE SCHEDULE Water I Land I Infrastructure I Facilities
Effective January 1, 2024
DESCRIPTION
HOURLY RATE
1.
Office Tech I, Expediter 1
$ 65.00
2.
Office Tech 11, Expediter 11, Survey Field Tech
$ 80.00
3.
Intern, Survey Tech 1, Jr. CAD Tech, Jr. Inspector, Office Tech 111
$ 100.00
4.
Designer, Jr. Planner, Survey Tech 11, CAD Tech, Inspector, Sr. Office Tech, Jr. Ecologist/Scientist
$ 120.00
5.
Jr. Engineering Staff, Designer 1, Planner, GIS Tech, Survey Tech 111, CAD Tech 1, Inspector 1,
Project Administrator, Ecologist
$ 136.00
6.
Landscape Architect, Engineering Staff 1, Designer 11, Planner 1, Survey Tech IV, GIS Analyst 1, CAD
Tech 11, Inspector 11, Sr. Project Administrator, Ecologist 1,
$ 151.00
7.
Landscape Architect 1, Engineering Staff 11, Designer 111, Planner 11, GIS Analyst 11, CAD Tech 111,
Inspector 111, Survey Tech V, Ecologist 11
$ 166.00
8.
Landscape Architect 11, Project Designer, Planner 111, Sr. Survey Tech, GIS Analyst 111, Engineering
Staff 111, Sr. CAD Tech, Sr. Inspector, Scientist, Ecologist 111
$ 181.00
9.
Landscape Architect 111, Engineering Staff IV, Project Designer 1, Sr. Planner, Project Surveyor,
Sr. GIS Analyst, CAD Manager, Project CAD Tech, Sr. Project Inspector, Survey Field Tech 1,
One -Person Crew, BIM Manager, Ecologist IV, Engineer IV, Scientist 1
$ 194.00
10.
Landscape Architect IV, Project Engineer, Project Designer 11, Project Planner, Sr. Project Surveyor,
Sr. Project GIS Analyst, Structural Engineer, UAS Pilot, Scientist 11, Ecologist V
$ 209.00
11.
Sr. Landscape Architect, Sr. Project Engineer, Sr. Structural Engineer, Sr. Project Designer,
IT Manager, Sr. Project Planner, Survey Project Manager, Tech Services Manager,
Sr. Ecologist/Scientist
$ 222.00
12.
Principal Ecologist/Scientist, Project Manager, Principal Surveyor, Planning Project Manager
$ 238.00
13.
Sr. Principal Ecologist/Scientist, Sr. Project Manager, Sr. Principal Surveyor, Two -Person Crew
$ 252.00
14.
Principal Engineer, Principal Planner, Sr. Two -Person Crew
$ 272.00
15.
Sr. Principal Engineer, Sr. Principal Planner
$ 288.00
A.
REIMBURSABLES
Subconsultants, Professional and Technical
Cost + 15%
B.
Project Administration $60.00/Invoice
C.
Maps, reports, materials, permit fees, express delivery and messenger,
pass-through bills, and similar items necessary for work in progress
Cost + 15%
D.
Out -of -Town travel per diem and cost of commercial transportation
Cost + 10%
E.
Transportation within 30 Mile Radius *
No Charge
Transportation beyond 30 Mile Radius—Automobile At Approved
IRS Rate
*On job inspection mileage will be billed At Approved
IRS Rate
F.
Printing Costs
Large Format Blueprints and Reproduction — Bond
$ 0.50/sq ft
Large Format Blueprints and Reproduction — Mylar
$ 1.50/sq ft
Color Copies — In-house (81/2 x 11)
$ 0.25/page
G.
Expert Witness
Rate x 1.5
Notes: ' All payment is due within 30 days from date of invoice. A monthly service charge of 1%will be added on
all accounts
older than 30 days.
2 The foregoing schedule of charges is incorporated into the agreement for the services provided effective
January 1, 2024. After December 31, 2024, invoices will reflect the schedule of charges in effect at that time.
1101 South Fawcett Avenue, Suite 200
Tacoma, Washington 98402
253.383.4940
May 6, 2024
PACE Engineers, Inc.
11255 Kirkland Way, Suite 300
Kirkland, Washington 98033
Attention: Brian Way, PLA, ASLA
Subject: Revised Proposal
Phase Ila Additional Wetland and Stream Delineations
Geotechnical Engineering and Environmental Permitting Services
South 131s' Place Drainage Improvements Project
Tukwila, Washington
File No. 0259-061-00
Thank you for the opportunity to provide this proposal for additional environmental permitting services in
support of Phase Iia of the South 131s' Place Drainage Improvements Project in Tukwila, Washington. Our
understanding of the requested services is based on email correspondence with you on March 26 and
April 1, 2024, as well as a coordination call with PACE Engineers and City of Tukwila representatives on
May 3, 2024, as reflected in the attached project area markup (see Exhibit A, Tukwila Survey 2024). The
additional scope requested will supplement previous critical areas assessment work we have completed
on the project and be incorporated into the existing ordinary high water mark (OHWM) and wetland
documentation produced under our existing contract. It is our understanding that the additional services
described below will be completed as part of Phase Ila, and that permitting associated with critical areas
will be completed as part of Phase Ilb, which is not scoped yet, but may be provided through a future
contract amendment.
Our proposed scope of services for this contract amendment is identified as a new task, Task 9.6, following
the task sequencing convention previously established for the project.
The purpose of this subtask is to identify and document regulated aquatic critical areas (wetlands and
streams) and delineate regulatory wetland and OHWM boundaries within the new survey areas identified
on Exhibit A. This scope specifically includes:
Review available project -specific data and publicly available wetland, stream, wildlife and soil
databases within the new areas to be surveyed.
PACE Engineers, Inc I May 6, 2024
Page 2
Complete a site reconnaissance to identify and delineate wetlands and stream OHWM within the new
survey areas that are protected by federal, state or local regulations.
❑ If wetlands are identified, we will flag wetland boundaries, collect wetland test plot data and rate
each wetland according to the current 2014 Washington State Wetland Rating System for Western
Washington.
❑ We will also delineate and flag the OHWM of streams within the new survey areas.
❑ Identify limits of reed canarygrass (Phalaris arundinacea) within Washington State Department of
Transportation (WSDOT) right-of-way (ROW).
❑ Wetlands and streams will be marked in the field with survey flagging for subsequent professional
land survey and incorporation onto the project base map.
Integrate findings associated with the new survey areas into the existing wetland report addressing the
South 131s' Place culvert replacement project.
❑ Wetland and stream ratings and regulatory buffers will be included in the report and will be based
on the City of Tukwila (City) code.
❑ In addition to incorporating the findings associated with the new survey areas, this scope includes
collecting limited additional field sampling (up to four new wetland sample plots) and reporting of
our newly collected and prior findings associated with the "Triangle Property"
(Parcels 2613200134 and 2613200087) for which field data was previously collected as part of
Amendment 1 to our contract.
Attend up to six meetings with the City and/or PACE Engineers during the execution of this phase.
Project management, accounting and administrative support during execution of scope identified
above.
Assumptions
Phase duration is anticipated to be 16 weeks. Our project management and meeting budget is based
on this schedule.
All previously scoped work and budget remaining associated with our original contract and
Amendment 1 is cancelled and will not be available for the execution of this phase or future phases.
Consequently, the following previously scoped tasks are removed from the current scope:
❑ Task 9.2, Environmental Documents and Permit Applications
❑ Task 9.3, Permit Submittal and Coordination
❑ Contingency tasks for wetland hydrology monitoring study and wetland mitigation planning/design
The extents of additional wetland/stream delineation areas are identified on Exhibit A, as annotated.
Professional Land Survey of the OHWM and/or wetland boundaries will be provided by PACE Engineers,
Inc. (PACE) and is not included.
The findings associated with the new survey area will be incorporated into the previously developed
Draft Critical Areas Report for the project, for resubmittal to PACE.
We assume right -of -entry permission will be coordinated by PACE and City. This assumes right -of -entry
permission by adjacent property owners to assess habitat conditions on their property. If access is not
granted, a visual, "over -the -fence" assessment will be performed from the City right-of-way (ROW).
File No. 0259-061-00
PACE Engineers, Inc I May 6, 2024
Page 3
We assume up to four days of field work completed by two biologists will be necessary to complete
fieldwork within the new survey areas.
This scope and fee estimate does not include any permitting associated with critical areas.
All deliverables will be provided as electronic files.
We are in a position to begin work 3 weeks after receiving your authorization to proceed. Our services will
be completed in accordance with the terms of our existing agreement, dated October 18, 2022.
The fee for our services will be determined on a time and materials basis using the rates contained in our
2024 Standard Schedule of Charges, which is attached to this proposal. We will endeavor to keep you
apprised of project status and conditions that may significantly affect our scope and estimate. The total
estimated fees for the work described above is presented in the table below.
Subtask 9.6 - Phase IIA Additional Wetland and Stream Delineations
$34,700
Total for Amendment 2 ($33,905)
Amendment 1 $7,000
There are no intended third -parry beneficiaries arising from the services described in this proposal and no
party other than the party executing this proposal shall have the right to legally rely on the product of our
services without prior written permission of GeoEngineers.
File No. 0259-061-00
PACE Engineers, Inc I May 6, 2024
Page 4
This proposal is valid for a period of 60 days commencing from the first date listed above and subject to
renegotiation by GeoEngineers, Inc., after the expiration date.
Sincerely,
GeoEngineers, Inc.
�'11�-Hu
Emily R. Hurn
Senior Environmental Scientist
V:RIIV:IDBC VIIutm
Attachments:
Exhibit A: Tukwila Survey 2024
Schedule of Charges - GeoEngineers Standard 2024
Schedule of Charges - Redmond -Seattle -Tacoma Lab Inside Charges 2024
David B. Conlin, MA, PWS
Associate
Proprietary fUaaVik.e the axxrteirits oll'tthiis ft.uurrreirlrV are proprietary to Geoll::.riglirieers, Inc. and are intended solely II'aaruuse by aalura,heirlits and theiirdesii,gru trams to
evaluate Gooa ::riigiilriieelrs" (xalC)abaullilV'es and understanding self llarojeaft requirements as they relate to performing rformmiing tthe services proposed II'aar a sper'ull1c IlaroJeat. Copies
of tthiis document or ilts axxrVelrits Immay boast be disclosed to any other IlaarttUes without the writtVelrii consent a fGeaaU::figlirieers.
Diisclaiilmoer: Any electronic II'aarmm, Ilacs'Ulmoiille or hard axallay oll�the orU,gUlmall document (rlmma'UU, ttexV, ttablle, aired/or figure), iilf provided, and any attachments are. only a
axallay oll�the orU,gUlriM document. the orU,gUlriA document its stored by GeaaU::fo,gUlmeelrs, Inc. and wI11ll ner@/r as the offieWll document of record.
Copyright(r) 024 by GeaaEirigkieelrs, Inc. AU Irilghts reserved.
File No. 0259-061-00 ' S
Legend T® be ii iied by .......................
Storm Catch Basin Sewer Pipe Street& Hwy IdGeoEnginee r s as part o f CA 2
0 Storm Drain Point Storm Ditch ..........• -•Stream New Survey Z-.----" 0 . .. ..... .... . 85 .... .. ....... 170 340 Feet
Storm Pipe Water Line Parcel 2 -ft Contour A
Legend
"
Storm Catch Basin ----' Sewer Pipe Street & Hwy F--- Pnm ;�d
o Storm Drain Point ---Smnnouoh— -cumom |d o an 17o ����� �]
�� ��
Legend T6 66 �iiessed by
" SnnooBasinm
� Basin ----' Sewer ---� cue � Hwy F--- Pnm1. ' `
Storm
o Storm Drain Point ---Smnnouoh— -cumom |d o an 170 340 Feet A
9
arcel" was
des
Becker Property
ditional
ly
d sampling to
prior findings.
been previously
assessed by
GeoEngineers, and
will also be
completed as part of
the CA2
Legend T6 66 �iiessed by
" SnnooBasinm
� Basin ----' Sewer ---� cue � Hwy F--- Pnm1. ' `
Storm
o Storm Drain Point ---Smnnouoh— -cumom |d o an 170 340 Feet A
9
Legend T6 be assessed by
Storm Catch Basin Sewer Pipe Street & Hwy Previous S G e o E n g i n e e r s as part o f CA 2
....... .... ..... ..... .... .... . ... ..... .... .. .... .... .... ..... .... .. .. .... .. ....... ....... ....
0 Storm Drain Point Storm Ditch ..........• .... Stream Id Z0 85 170 340 Feet
Storm Pipe Water Line Parcel '�'ew Survey
r
,�4 MIS
Page 1 of 2
Our compensation will be determined on the basis of time and expenses in accordance with the following schedule unless a
lump sum amount is so indicated in the proposal or services agreement. Current rates are:
PROFESSIONAL STAFF
Staff 1 Scientist
$
146/hour
Staff 1 Engineer
$
154/hour
Staff 2 Scientist
$
167/hour
Staff 2 Engineer
$
175/hour
Staff 3 Scientist
$
191/hour
Staff 3 Engineer
$
198/hour
Project Scientist 1
$
220/hour
Project Engineer 1
$
228/hour
Project Scientist 2
$
228/hour
Project Engineer 2
$
234/hour
Senior Engineer/Scientist 1
$
255/hour
Senior Engineer/Scientist 2
_
$
279/hour
Associate
$
292/hour
Principal
$
320/hour
Senior Principal
$
340/hour
TECHNICAL SUPPORT STAFF
Administrator 1
$
103/hour
Administrator 2
$
119/hour
Administrator 3
$
136/hour
CAD Technician
$
132/hour
CAD Designer
$
155/hour
Senior CAD Designer
$
180/hour
GIS Analyst
$
165/hour
Senior GIS Analyst
$
180/hour
GIS Coordinator
$
200/hour
*Technician
$
114/hour
*Senior Technician
$
136/hour
*Lead Technician
$
146/hour
Geotechnical Construction Specialist
$
191/hour
Environmental Database Manager
$
226/hour
Health and Safety Specialist
$
146/hour
Health and Safety Manager
$
200/hour
*Hours in excess of 8 hours in a day or 40 hours in a week will be charged at one and one-quarter
times the hourly rates
listed above.
Contracted professional and technical services will be charged at the applicable hourly rates listed above.
Staff time spent
providing expert services in disputes, mediation, arbitration and litigation will be billed at one and one-half
times the above
rates. Time spent in either local or inter -city travel, when travel is in the interest of this contract, will
be charged in accordance
with the foregoing schedule. A surcharge may be applied to night and weekend work. See proposal for details.
Rates for data storage and web -based access will be provided on a project -specific basis.
Associated Profec R
Associated Project Costs (APC) equal to six percent (6%) of professional fees will be assessed. This fee allows GeoEngineers
to invest in the necessary infrastructure to ensure we provide our clients with the latest technological
and
data security
standards. The investments include maintaining and advancing technical tools and platforms
across all
aspects of our
business, and strengthening our defenses against cyber threats to ensure data remains secure. These costs
are not included
in our hourly rates or direct expenses.
Schedule_GeoEngineersStandard-2024 INiR
Page 2 of 2
Air Quality Equipment, per Day
$
210.00
Air Sparging Field Test, per Day
$
110.00
Air/Vapor Monitoring Equipment (PID, 5 -Gas Meter), per Day
$
110.00
Asbestos Sample Kit, Each
$
30.00
Blastmate, per Day
$
120.00
D&M Sampler, per Day
$150.00
DO (Dissolved Oxygen) Kit, Each
$
25.00
Dynamic Cone Penetrometer, per Day
$45.00
E -Tape (Electric Tape), per Day
$
35.00
Electric Density Gauge, per Day
$
110.00
Electric Density Gauge, per Week
$
430.00
Electric Density Gauge, per Month
$
1,400.00
Environmental Exploration Equipment, per Day
$
225.00
Field Data Acquisition Equipment (Field Tablet), per Day
$55.00
Field Tablet, per Week
$
200.00
Field Tablet per Month
$
750.00
Field Tablet with Cellular, per Day
$
75.00
Field Tablet with Cellular, per Week
$
300.00
Field Tablet with Cellular, per Month
$
1,000.00
Field Gear/Reconnaissance, per Day
$
55.00
Gas Detection Meters, per Day
$
105.00
Generator, per Day
$
110.00.
Groundwater Pressure Transducer w/ Datalogger, per Day
$
55.00
Groundwater Pressure Transducer w/ Datalogger, per Week
$
220.00
Hand Auger, per Day ,.
$
100.00
Inclinometer Probe, per Day, 1 Day minimum
$
210.00
Interface Probe, per Day
$
65.00
Iron Test Kit Each$
-.
25.00.
Laser Level per Day
$
60.00
Low Flow Groundwater Sampling Equipment, per Day
$
235.00
Multiparameter Water Quality Meter, per Day
$
85.00
Nuclear Density Gage, per Hour, 1/2 Day minimum
$15.00
Peristaltic Pump, per Day
$
50.00
pH Probe,/Meter per Day
$20.00
PID, FID or OVA, per Day
$
130.00
Rock/Slope Fall Protection/Rigging Equipment, per Day
$
700.00
Saximeter, per Day
$
60.00
Scuba Diving Gear, per Day/per Diver
$
700.00
Shallow Soil Exploration Equipment, per Day
$
60.00
Soil Field Screening Equipment, per Day
$
20.00
Soil Sample Kit, Each,.
$
20.00
Steam Flow Meter, per Day
$
20.00
Strain Gauge Readout Equipment, per Day
$
50.00
Surface Water Flow Meter, per Day, 1/2 day minimum
$
50.00
Surface Water Quality Monitoring Equipment, per Day
$
50.00
Turbidity Meter, per Day
$
50.00
Vehicle usage, per Mile, or $30/half-day, whichever is greater
$
0.65
Specialized and miscellaneous field equipment not listed above will be quoted on a project -specific basis.
SERVICES,OTHER SUPPLIES AND SPECIAL TAXES
Charges for services, equipment, supplies and facilities not furnished in accordance with the above schedule, and any
unusual items of expense not customarily incurred in our normal operations, are charged at cost plus
15 percent. This
includes shipping charges, subsistence, transportation, printing and reproduction, miscellaneous
supplies and rentals,
surveying services, drilling equipment, construction equipment, watercraft, aircraft, and special
insurance
which may be
required. Taxes required by local jurisdictions for projects in specific geographic areas will be charged to
projects at direct
cost.
Per diem may be charged in lieu of subsistence and lodging
Routinely used field supplies stocked in-house by GeoEngineers, at current rates, list available upon request
In-house testing for geotechnical soil characteristics at current rates, list available upon request.
All rates are subjectto change upon notification.
Schedule_GeoEngineersStandard-2024 IINR
Page 1 of 2
Laboratory e ule of Charges
TYPE OF TEST UNIT PRICE
Soil Index and Classification Tests
Soil Description (ASTM D 2488)
$
17
Moisture Content
Oven (ASTM D 2216)
$
23
Moisture/Density (ASTM D 7263, D 2937)
Rings
$40
Shelby Tubes, waxed chunk
$
50
Tubes (liners), chunk
$
50
Particle Size Analysis
Percent Passing No. 200 (ASTM D 1140)
$
110
Sieve (ASTM D 422, D 6913, C 136 includes minus 200 Wash, Dry Sieve)
$
150
Gravel Sieve (ASTM D 422, D 6913, C 136 includes minus 200 Wash, Dry Sieve)
$
220
Hydrometer Only (ASTM D 422, minus#10 fraction)
$
180
Combined Sieve and Hydrometer (ASTM D 422-63)
$
280
Combined Gravel Sieve and Hydrometer (ASTM D 422-63)
$350
Organic Content (ASTM D 2974)
$
85
Atterberg Limits (ASTM D 4318)
$
210
Organic
$
110
Compaction (ASTM D 698/D 1557, AASHTO T 99/T 180, Methods A, B and C)
Granular/Cohesive (1 Point)
$130
Granular (4 Point)
$
305
Cohesive (4 Point)
$
325
Strength and Consolidation Tests
Triaxial Compression
135
Unconfined Comp. Strength - UCS (ASTM D 2166)
$
Unconsolidated Undrained - UU (ASTM D 2850)
$
265
Unconsolidated Undrained (back pressure saturation)
$
500
Consolidated Undrained - CU (ASTM D 4767) with pore pressure measurement
$
625
Consolidated Undrained (3 points, staged)
$1,600
Consolidation (ASTM D 2435)
$
675
With Reload
$
750
With Reload and Unload
$
850
Additional timed load increments, each
$
80
Constant Rate of Strain Consolidation (ASTM D 4186)
$
1,000
CBR, 1 point with Proctor (ASTM D 1883)
$
530
Additional points, each
$
160
Corrosion Tests
Soil Resistivity (ASTM G 187)
$
75
pH of Soil (ASTM D 4972 / G 51)
$
50
Permeability Tests
In triaxial cell with back pressure saturation (ASTM D 5084)
$
740
Soil Sample Preparation
Extrusion - Extrude and log (visual classification) Shelby tube sample
$
70
Remolding - Remolding a soil sample to desired moisture and density
$
Hourly
Soil - Cement/Lime Treatment
$
Hourly - negotiated
Aggregate and Rock Tests
Point Load Test or Rock Core (ASTM D5731)
$
80
*Please contact us regarding test procedures which are not listed or for tests on contaminated
soils.
Negotiated unit rates
or hourly rates will be charged for these procedures.
*Unit prices reflect a typical standard turnaround time of 10 business days for most analyses (with the exception of density
and secondary testing). Expedited test results are subject to 50% to 100% surcharge and are subject to lab availability to
meet the expedited schedule.
**Not WABO-certified.
All rates are subjectto change upon notification.
Schedule_Lab_Inside_Charges_Redmond-Seattle-Tacoma-Portland-2024 GMENGINEEIRS
City of Tukwila Agreement Number: 22-102(b)
Council Approval N/A
• 6200 Southcenter Boulevard, Tukwila WA 98188
CONTRACT FOR SERVICES
Amendment #2
Between the City of Tukwila and PACE Engineers, Inc.
That portion of Contract No. 22-102 between the City of Tukwila and PACE Engineers, Inc. for the
project titled S 131St Place Drainage Improvement Project is hereby amended as follows:
Section 3: Duration of Agreement; Time for Performance:
The Consultant shall perform all services and provide all work product required pursuant to
this agreement no later than December 31St, 2024.
All other provisions of the contract shall remain in full force and effect.
Dated this 19th day of December
2023
CITY OF TUKWILA CONTRACTOR:
DSE�89FE09132B402
cuS�dLby,:
Ems% �� �j... C/ By:
Allan Ekberg, Mayor 12/19/2023 1 7:12 PM PST
ATTEST/AUTH ENTI CATED:
DocuSigned by:
E
I V tSf� (-1 fg4t ,vr�
88678483CB594E7...
Christy O'Flaherty, City Clerk
APPROVED AS TO FORM:
DocuSigned by: (1 A
SE499CA4165E452...
Office of the City Attorney
Printed Name: Kenneth H Nilsen
Title: President
CA Reviewed May 2020 Page 1 of 1
City of Tukwila Agreement Number: 22-102(a)
Council Approval N/A
6200 Southcenter Boulevard, Tukwila WA 98188
CONTRACT FOR SERVICES
Amendment # 1
Between the City of Tukwila and Pace Engineers, Inc.
That portion of Contract No. 22-102 between the City of Tukwila and Pace Engineers, Inc. is hereby
amended as follows:
Section 2: Scope of Services. Work under this contract shall be amended to include
reimbursement for direct expenses and costs associated with the additional contract scope of
services as described in Exhibit A, attached.
Section 4: Payment. Payment is hereby changed to include an additional $19,880.00 for this
additional scope of services. See Exhibit A. The maximum amount payable under this contract as
amended inclusive of all fees and other costs shall not exceed $391,490.00 without express written
modifications of the Agreement signed by the City.
All other provisions of the contract shall remain in full force and effect.
Dated this 19th day of
CITY OF TUKWILA
DS 5"�'
ocuSigned by:
ty V n
1891E 9 328402.. 5�19�ZOZ3 4:06 PM PDT
Allan Ekberg, ayor I
ATT EST/AUTHENTICATED:
Ff DocuSigned by:
(,6sf�
Christy O'Flaherty, City Clerk
APPROVED AS TO FORM:
DocuSigned by:
0-L IqAtA
Office of the City Attorney
2023
CONTRACTOR: PACE Engineers,
By: Z,.,...-.,._ -& /%�- --
Printed Name. Kenneth H Nilsen
Title: President
CA Reviewed May 2020 Page 1 of 1
Engineers I Planners I Surveyors
,
An E.%% d mqP went Camfwy
April 18, 2023
City of Tukwila
6300 Southcenter Boulevard, Suite 200
Tukwila, WA 98188
Attn: Joshua Hopkins, Surface Water Project Manager
Re: South 131st Street Drainage Improvements Additional Services Request #1
Dear Joshua,
As requested, PACE has prepared the following scope and budget for additional site investigations to assist the
City in their evaluation of the potential benefits of acquiring two properties of land adjacent to the 131s' Street
drainage project.
Project Understanding
As part of the South 131st Street Drainage Improvement project, the City has asked PACE to evaluate two
properties the City is considering for potential acquisition. The first property is composed of two parcels
(parcel 2613200134 & 2613200087) and is located at 4410 S 133rd St; this property is referred to as the
"Triangle Property". The second property (parcel 7349200340) is located at 13130 44th Ave S.'is directly north
of the Triangle Property. To assist the City in this evaluation process, PACE has been tasked with determining
the following:
Identify environmental and zoning constraints. This includes critical areas and their buffers as well as
development setbacks. This will help establish the net buildable area that can be used by the appraisers
in establishing a valuation for the properties as well as to identifying areas for potential use in the
final131st Place Drainage Improvement Design.
Develop three conceptual alternatives. The three conceptual alternatives include: 1) using the "Triangle"
property only; 2) using both properties; and 3) using only the 13130 44th Ave South property. This
information will help to assist in determining the environmental and operational benefit of acquiring
one or both these two parcels.
Specific Scope of work is as follows:
Part A — 4404 S. 133rd St., Tukwila — "Triangle Property" (Parcels 2613200134 & 2613200087)
This property is located directly south of Southgate Creek mainstem, which is in a ditch line in the S 133rd St
right of way. The property is positioned between the by-pass pipe that carries the middle and east fork high
flows to the east, and the west fork to the west. Due to this proximity, the City sees potential for this site to
serve project goals of water quality, stream and habitat restoration and flood attenuation and has created a
preliminary concept plan for discussion purposes. The City has obtained a right -of -entry on this property for
survey purposes associated with the project. The owner has agreed to permit access for critical area
delineation purposes and has been informed of the potential for delineated wetlands to further encumber the
property.
PACE Engineers, Inc.
11255 Kirkland Way I Suite 300
Kirkland, Washington 98033-3417
p 425.827.2014 1 f 425.827.5043
www.paceengrs.com
April 18, 2023 Engineers i Planners i Surveyors
City of Tukwila
131s' Drainage ASA #1
Page 2 of 3 www.paceengrs.com
Task 1— Delineation of Critical Areas and their Buffers
Geo Engineers, as a part of the PACE Team, will delineate the edge of any wetlands or streams across this parcel
and identify their buffers based upon their classification in accordance with City of Tukwila code. PACE will
survey the edge of the critical areas established by GeoEngineers and plot that information along with their
associated buffers on our existing survey base map.
Task 2 — Identification of any Code/Planning Setbacks
PACE will research City planning code and identify any property line/building setbacks, required frontage
improvements or any required right -of way dedication. These lines will be plotted on the base map along with
the critical area setbacks in order to determine a net buildable area.
Task 3 — Conceptual Site Layout
Independent of the restrictions identified in Tasks 1) and 2) above (it is assumed that any proposed stream
work will be considered an enhancement and can occur within these critical areas). PACE, in coordination with
GeoEngineers, will prepare two high-level conceptual layouts, as described above, to improve drainage and
fish passage while enhancing habitat and attenuating future floods within Southgate Creek as part of the
drainage improvement project. This conceptual layout will use existing survey and Lidar in providing
approximate grades or elevations across the site.
PROJECT COSTS PART A (see attached spreadsheet) $12,473
Part B - 13130 44th Ave S., Tukwila (Parcel 7349200340)
This property is posted for sale. The City, has not reached out to the owner currently. It is located adjacent to
S 131St and S 44th Street rights-of-way, which are both gravel paved, and bound on the northeast by a potential
series of wetlands. The 1992 Report by Kramer, Chin & Mayo indicated that this wetland course could serve as
a potential stream alignment. The City would like to understand the potential for this site in meeting project
goals.
Task 1— Delineation of Critical Areas and their Buffers
Geo Engineers and PACE will evaluate the property for critical areas using existing data and a field assessment
from the Right of Way (City does not currently have a Right of Entry) as well as the wetland complex that extends
from this property in a northwesterly direction along the base of the SR 599 NB off -ramp to its connection to
Southgate Creek west of the Normed property. If there are any wetlands identified, PACE will estimate the
extents and incorporate the approximate areas along with their associated buffers into our existing survey base
map.
Task 2 — Identification of any Code/Planning Setbacks
PACE will research City planning code and identify any property line/building setbacks, required frontage
improvements or any required right -of way dedication. These lines will be plotted on the base map along with
the critical area setbacks to determine a net buildable area.
( iL,t NA R1.v7 docx
April 18, 2023
City of Tukwila
131" Drainage ASA #1
Page 3 of 3
Engineers i Planners i Surveyors
www.paceengrs.com
Task 3 — Conceptual Site Layout
Independent of the restrictions identified in Tasks 1) and 2) above, PACE in coordination with GeoEngineers
will prepare a high-level conceptual layout to maximize the environmental and operational benefits of
Southgate Creek as part of the stream and drainage improvements. This conceptual layout will use existing
survey and Lidar in providing approximate grades or elevations across the site.
PROJECT COSTS PART B (see attached spreadsheet) $7,407
TOTAL PROJECT COSTS $19,880
If you have any questions or need any additional information on this request, please feel free to reach out.
Sincerely,
PACE Engineers, Inc.
Kenneth Nilsen, PE
President
cc: Shane Sheldon, PACE
Tasha Wang, PACE
Attachments
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City of Tukwila Contract Number: 22-102
• 6200 Southcenter Boulevard, Tukwila WA 98188 Council Approval 8/22/22
PROFESSIONAL SERVICES AGREEMENT
(Includes consultants, architects, engineers, accountants, and other professional services)
THIS AGREEMENT is entered into between the City of Tukwila, Washington, hereinafter
referred to as "the City", and Pace Engineers, Inc. , hereinafter referred to as "the Consultant", in
consideration of the mutual benefits, terms, and conditions hereinafter specified.
1. Project Designation. The Consultant is retained by the City to perform engineering and
design services in connection with the project titled S. 131St St. Drainage Improvements .
2. Scope of Services. The Consultant agrees to perform the services, identified on Exhibit "A"
attached hereto, including the provision of all labor, materials, equipment and supplies.
3. Duration of Agreement; Time for Performance. This Agreement shall be in full force and
effect for a period commencing upon execution and ending _December 31, 2023 , unless
sooner terminated under the provisions hereinafter specified. Work under this Agreement shall
commence upon 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 no later
than December 31, 2023 unless an extension of such time is granted in writing by the City.
4. Payment. The Consultant shall be paid by the City for completed work and for services
rendered under this Agreement as follows:
A. Payment for the work provided by the Consultant shall be made as provided on Exhibit
"B" attached hereto, provided that the total amount of payment to the Consultant shall not
exceed $371,610.00 without express written modification of the Agreement signed by
the City.
B. The Consultant may submit vouchers to the City once per month during the progress of
the work for partial payment for that portion of the project completed to date. Such
vouchers will be checked by the City and, upon approval thereof, payment shall be made
to the Consultant in the amount approved.
C. Final payment of any balance due the Consultant of the total contract price earned will be
made promptly upon its ascertainment and verification by the City after the completion of
the work under this Agreement and its acceptance by the City.
D. Payment as provided in this section shall be full compensation for work performed,
services rendered, and for all materials, supplies, equipment and incidentals necessary to
complete the work.
E. The Consultant's records and accounts pertaining to this Agreement are to be kept
available for inspection by representatives of the City and the state of Washington for a
period of three (3) years after final payments. Copies shall be made available upon
request.
5. Ownership and Use of Documents. All documents, drawings, specifications and other
materials produced by the Consultant in connection with the services rendered under this
Agreement shall be the property of the City whether the project for which they are made is
executed or not. The Consultant shall be permitted to retain copies, including reproducible
copies, of drawings and specifications for information, reference and use in connection with
the Consultant's endeavors. The Consultant shall not be responsible for any use of the said
documents, drawings, specifications or other materials by the City on any project other than
the project specified in this Agreement.
6. Compliance with Laws. The Consultant shall, in performing the services contemplated by
this Agreement, faithfully observe and comply with all federal, state, and local laws, ordinances
and regulations, applicable to the services rendered under this Agreement.
7. Indemnification. The Consultant shall defend, indemnify and hold the City, its officers,
officials, employees and volunteers harmless from any and all claims, injuries, damages,
losses or suits including attorney fees, arising out of or resulting from the acts, errors or
omissions of the Consultant in performance of this Agreement, except for injuries and damages
caused by the sole negligence of the City.
Should a court of competent jurisdiction determine that this Agreement is subject to RCW
4.24.115, then, in the event of liability for damages arising out of bodily injury to persons or
damages to property caused by or resulting from the concurrent negligence of the Consultant
and the City, its officers, officials, employees, and volunteers, the Consultant's liability
hereunder shall be only to the extent of the Consultant's negligence. It is further specifically
and expressly understood that the indemnification provided herein constitutes the Consultant's
waiver of immunity under Industrial Insurance, Title 51 RCW, solely for the purposes of this
indemnification. This waiver has been mutually negotiated by the parties. The provisions of
this section shall survive the expiration or termination of this Agreement.
8. Insurance. The Consultant shall procure and maintain for the duration of the Agreement,
insurance against claims for injuries to persons or damage to property which may arise from
or in connection with the performance of the work hereunder by the Consultant, its agents,
representatives, or employees. Consultant's maintenance of insurance as required by the
agreement shall not be construed to limit the liability of the Consultant to the coverage provided
by such insurance, or otherwise limit the City's recourse to any remedy available at law or in
equity.
A. Minimum Amounts and Scope of Insurance. Consultant shall obtain insurance of the
types and with the limits described below:
1. Automobile Liability, insurance with a minimum combined single limit for bodily injury
and property damage of $1,000,000 per accident. Automobile Liability insurance
shall cover all owned, non -owned, hired and leased vehicles. Coverage shall be
written on Insurance Services Office (ISO) form CA 00 01 or a substitute form
providing equivalent liability coverage. If necessary, the policy shall be endorsed to
provide contractual liability coverage.
2. Commercial General Liability insurance with limits no less than $2,000,000 each
occurrence, $2,000,000 general aggregate. Commercial General Liability
insurance shall be at least as broad as ISO occurrence form CG 00 01 and shall
cover liability arising from premises, operations, stop -gap independent contractors
and personal injury and advertising injury. The City shall be named as an
additional insured under the Consultant's Commercial General Liability insurance
policy with respect to the work performed for the City using an additional insured
endorsement at least as broad as ISO endorsement form CG 20 26.
3. Workers' Compensation coverage as required by the Industrial Insurance laws of
the State of Washington.
CA revised May 2020 Page 2
4. Professional Liability with limits no less than $2,000,000 per claim and $2,000,000
policy aggregate limit. Professional Liability insurance shall be appropriate to the
Consultant's profession.
B. Public Entity Full Availability of Contractor Limits. If the Contractor maintains higher
insurance limits than the minimums shown above, the Public Entity shall be insured for the
full available limits of Commercial General and Excess or Umbrella liability maintained by
the Contractor, irrespective of whether such limits maintained by the Contractor are greater
than those required by this Contract or whether any certificate of insurance furnished to
the Public Entity evidences limits of liability lower than those maintained by the Contractor.
C. Other Insurance Provision. The Consultant's Automobile Liability and Commercial
General Liability insurance policies are to contain, or be endorsed to contain that they shall
be primary insurance with respect to the City. Any Insurance, self-insurance, or insurance
pool coverage maintained by the City shall be excess of the Consultant's insurance and
shall not be contributed or combined with it.
D. Acceptability of Insurers. Insurance is to be placed with insurers with a current A.M.
Best rating of not less than A:VII.
E. Verification of Coverage. Consultant shall furnish the City with original certificates and a
copy of the amendatory endorsements, including but not necessarily limited to the
additional insured endorsement, evidencing the insurance requirements of the Contractor
before commencement of the work. Upon request by the City, the Consultant shall furnish
certified copies of all required insurance policies, including endorsements, required in this
Agreement and evidence of all subcontractors' coverage.
F. Notice of Cancellation. The Consultant shall provide the City with written notice of any
policy cancellation, within two business days of their receipt of such notice.
G. Failure to Maintain Insurance. Failure on the part of the Consultant to maintain the
insurance as required shall constitute a material breach of contract, upon which the City
may, after giving five business days notice to the Consultant to correct the breach,
immediately terminate the contract or, at its discretion, procure or renew such insurance
and pay any and all premiums in connection therewith, with any sums so expended to be
repaid to the City on demand, or at the sole discretion of the City, offset against funds due
the Consultant from the City.
9. Independent Contractor. The Consultant and the City agree that the Consultant is an
independent contractor with respect to the services provided pursuant to this Agreement.
Nothing in this Agreement shall be considered to create the relationship of employer and
employee between the parties hereto. Neither the Consultant nor any employee of the
Consultant shall be entitled to any benefits accorded City employees by virtue of the services
provided under this Agreement. The City shall not be responsible for withholding or otherwise
deducting federal income tax or social security or for contributing to the state industrial
insurance program, otherwise assuming the duties of an employer with respect to the
Consultant, or any employee of the Consultant.
10. Covenant Against Contingent Fees. The Consultant warrants that he has not employed or
retained any company or person, other than a bonafide employee working solely for the
Consultant, to solicit or secure this contract, and that he has not paid or agreed to pay any
company or person, other than a bonafide employee working solely for the Consultant, any
fee, commission, percentage, brokerage fee, gifts, or any other consideration contingent upon
or resulting from the award or making of this contract. For breach or violation of this warrant,
the City shall have the right to annul this contract without liability, or in its discretion to deduct
from the contract price or consideration, or otherwise recover, the full amount of such fee,
commission, percentage, brokerage fee, gift, or contingent fee.
CA revised May 2020 Page 3
11. Discrimination Prohibited. Contractor, with regard to the work performed by it under this
Agreement, will not discriminate on the grounds of race, religion, creed, color, national origin,
age, veteran status, sex, sexual orientation, gender identity, marital status, political affiliation,
the presence of any disability, or any other protected class status under state or federal law,
in the selection and retention of employees or procurement of materials or supplies.
12. Assignment. The Consultant shall not sublet or assign any of the services covered by this
Agreement without the express written consent of the City.
13. Non -Waiver. Waiver by the City of any provision of this Agreement or any time limitation
provided for in this Agreement shall not constitute a waiver of any other provision.
14. Termination.
A. The City reserves the right to terminate this Agreement at any time by giving ten (10) days
written notice to the Consultant.
B. In the event of the death of a member, partner or officer of the Consultant, or any of its
supervisory personnel assigned to the project, the surviving members of the Consultant
hereby agree to complete the work under the terms of this Agreement, if requested to do
so by the City. This section shall not be a bar to renegotiations of this Agreement between
surviving members of the Consultant and the City, if the City so chooses.
15. Applicable Law; Venue; Attorney's Fees. This Agreement shall be subject to, and the
Consultant shall at all times comply with, all applicable federal, state and local laws,
regulations, and rules, including the provisions of the City of Tukwila Municipal Code and
ordinances of the City of Tukwila. In the event any suit, arbitration, or other proceeding is
instituted to enforce any term of this Agreement, the parties specifically understand and agree
that venue shall be properly laid in King County, Washington. The prevailing party in any such
action shall be entitled to its attorney's fees and costs of suit. Venue for any action arising
from or related to this Agreement shall be exclusively in King County Superior Court.
16. Severability and Survival. If any term, condition or provision of this Agreement is declared
void or unenforceable or limited in its application or effect, such event shall not affect any other
provisions hereof and all other provisions shall remain fully enforceable. The provisions of this
Agreement, which by their sense and context are reasonably intended to survive the
completion, expiration or cancellation of this Agreement, shall survive termination of this
Agreement.
17. Notices. Notices to the City of Tukwila shall be sent to the following address:
City Clerk
City of Tukwila
6200 Southcenter Boulevard
Tukwila, WA 98188
Notices to Consultant shall be sent to the following address:
Pace Engineers
11255 Kirkland Way, Suite 300
Kirkland, WA 98033
18. Entire Agreement; Modification. This Agreement, together with attachments or addenda,
represents the entire and integrated Agreement between the City and the Consultant and
supersedes all prior negotiations, representations, or agreements written or oral. No
amendment or modification of this Agreement shall be of any force or effect unless it is in
writing and signed by the parties.
CA revised May 2020 Page 4
DATED this 30th day of August 2o22
CITY OF TUKWILA CONSULTANT
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H P Kav ... de_n e a -
Allan Ekberg, Mayor
Attest/Authenticated:
............ .. .. .......
City Clerk, Christy O'Flaherty
PACE Engineers
By:
Printed Name: Ken Nilsen, PE
Title: Executive Vice President
Approved as to Form:
Office of the City Attorney
CA revised May 2020 Page 5
EXHIBIT A
rIPMAILICE
An Engineering Se ices Company
August 10, 2022
City of Tukwila
6300 Southcenter Boulevard, Suite 200
Tukwila, WA 98188
Attn: Joshua Hopkins, Surface Water Project Manager
Scope of Services
Professional Civil Engineering Services
South 131st Place Drainage Improvement Project
Project Understanding
The City of Tukwila would like to improve the Southgate Creek crossing of South 131st Street, along with
a portion of the stream that is currently subject to routine flooding. The stream currently runs parallel to
South 131st Street in a dug channel which accumulates sediments and requires periodic dredging. The
existing culvert runs northwest beneath the roadway. The creek overtops South 131st Street during
storm events flooding the street and a private access road belonging to NorMed.
The project consists of two components to be worked on simultaneously. Part A is to develop a permitted
bid -ready design for a fish -passable culvert beneath South 131st St and associated stream and/or
roadway improvements that will improve stream flow, alleviate flooding, and eliminate barriers to fish
migration. Part B is an assessment and analysis of the Southgate Creek basin for the purpose of
determining hydrology and identifying future surface water improvement projects that will reduce
downstream flooding and sedimentation. The hydrologic modeling and stormwater analysis portion of
the Part B Basin Study will occur early in the project and will feed into the hydraulic modeling portion of
Part A. Sequencing the basin stormwater modeling prior to the other portion of the basin study will allow
for calibration of the model and develop a higher level of confidence in recreating the existing flow
conditions in Southgate Creek.
Scope of Work
A detailed proposal consisting of fifteen (14) tasks follows. This proposal includes necessary civil,
environmental, survey, structural, and geotechnical services through the design phase of this project.
Construction administration and bid assistance is not included in this scope of work and can be
reassessed at a later time based on the City's needs.
PACE will be the prime consultant for the entire Scope of Work and will oversee and administer all work
on the project. PACE will complete all civil and survey in-house and will subcontract with GeoEngineers
for geotechnical evaluations and permitting services.
Task 1—Project Management
PACE will provide administration and coordination for both Part A and part B of this project. The following
items are included in this task:
South 131st Place Drainage Improvement Project
Scope of Work
Page 2
1. Regular biweekly coordination and update meetings will be held with the City via Teams. Major
design review meetings can be held in-person or remotely as required. The following major review
meetings are anticipated:
a) Conceptual Alternatives Design Review
b) 30% Design Development Review
c) 60% Design Development Review
d) 90% Design Development Review
2. Review existing information provided by the City— as-builts, maintenance records, etc.
3. Coordinate with subconsultants.
4. In-house project administration, scheduling, and direction of design team staff.
Task 2 — Part A: Topographic Survey
PACE will provide a topographic stream and boundary survey showing all locatable utilities and surface
conditions, environmental constraints, right-of-way, and other relevant items along Southgate Creek and
at the South 131st Street crossing. Full stream and wetland survey will extend 300 feet downstream of the
existing South 131st Street crossing and upstream along both Southgate Creek tributary channels to South
133rd Street. A channel centerline survey will extend to down to Southgate Creek's confluence with the
Duwamish River including the SR 599 crossing, a private access road crossing, and the outlet tide gate.
The following items are included in this task:
a) Develop survey limits.
b) Research and confirm primary control points for use on the project.
c) Establish horizontal and vertical control work points along the route.
d) Survey the stream corridor locating surface improvements, types of material, and changes in
elevation.
e) All identifiable underground utilities will be surveyed along South 131st Street thatwill be impacted
by the culver replacement. Utility locations will be based on surface indications, radio frequency
locating and readily available maps from the service provider.
f) The rights of way and adjoining properties will be calculated from record information and
recovered monuments.
g) The survey/base map will be prepared in AutoCAD® at a scale of V = 20', showing the rights of way
and lot lines, two -foot contours, and surveyed features. Other features from City GIS data (sensitive
areas, setbacks, etc. will may be included to augment the survey).
PACE will provide the City with AutoCAD® files, DEM, and pdf of the basemap.
Task 3 — Part A: Conceptual Alternatives Design for Fish -Passable Crossing
Based on a site assessment and the topographic survey, PACE will prepare up to three conceptual
alternatives for the South 131st Street crossing and associated stream improvements for City review and
comment. The alternatives will present options and address the following items, as well as any specific
items requested by the City:
• The need of property acquisition
• The project extents and grading limits
South 131st Place Drainage Improvement Project
Scope of Work
Page 3
0 Roadway impacts
The following items are included in this task:
a) Site visit to the South 131st Street crossing area to collect stream data
b) Preliminary layouts for the three conceptual designs
c) Pro/con list and high-level cost benefit for each alternative
Task 4— Part B: Basin Analysis and Stormwater Modelling
This task consists of a desktop analysis of Southgate Creek basin to establish runoff volumes of individual
sub -basin areas and existing flow paths leading to the South 131st St crossing. The task includes the
following items:
a) Review of all exiting stormwater infrastructure data in Southgate Creek basin including GIS data,
as-builts, past watershed reports.
b) Basin delineation using LiDAR and stormwater network data, the number and size of subbasins will
depend on the density ofthe flow paths and pipe network. All significantflow paths will be captured
in the stormwater model.
c) Landcover and impervious area will be delineated form publicly available datasets and aerial
imaging and combined with USDA NRCS soil data to calculate rainfall runoff modeling parameters.
d) A continuous simulation MGSFIood stormwater model will use the SEATAC long-term rainfall
record to calculate all statistical peak flow estimates (Q2 — Q500)
e) Calibration of the MGSFIood will be based on the date of known storm events where flooding
occurred ie. roadway overtopping.
Task 5 — Part A: Hydraulic Design Report and Schematic Design (30 % design)
After the preferred alternative and project extents are established, PACE will build an existing model &
proposed condition hydraulic model and write up a basis of design report to establish how the project will
mitigate flooding, meet fish passage requirements, and maintain structure resiliency. The Hydraulic
Design Report will cover coordination with WSDOT on SR 599 plans and how the proposed project will
function with future downstream improvements. Hydraulic modeling will be performed using the United
States Bureau of Reclamation's SRH -2D computer program, a FEMA approved two-dimensional (2D)
hydraulic and sediment transport numerical model. Model results will inform multiple aspects of the
crossing design including the structure size, streambed design, and scour.
In conjunction with the report and modeling PACE will develop the 30% schematic design of the proposed
crossing. The task includes the following components.
a) Site assessment results
b) Existing geomorphology
c) Hydrology method and results
d) Existing and proposed modeling and analysis
e) WSDOT coordination
f) Channel and crossing designs
g) Streambed design
h) Restoration components
South 131st Place Drainage Improvement Project
Scope of Work
Page 4
i) Scour analysis
j) 30% design sheets
Task 6 — Part A: Geotechnical Evaluation
GeoEngineers will provide a geotechnical evaluation of the site. This evaluation will include up to two soil
borings to depths of 40 feet below existing ground surface in the vicinity of proposed crossing structure
and prepare a geotechnical design memorandum (see the attached Scope of Work from Geoengineers for
more details on the geotechnical evaluation).
Task 7— Part A: Design Development Plans (60% Plans, Specifications and Estimates)
Based on City comments on the 30% design, PACE will prepare Design Development Plans (60%) of the
South 131st Street crossing and included stream improvements. We will also prepare an outline of the
specifications and prepare an estimate of probable construction costs for City review and comment. This
work includes:
a) Design of the stream alignment
b) Design of the proposed channel geometry
c) Design of the roadway elevation and alignment
d) Design of any large wood or other restoration features
e) Outline of the proposed specifications using WSDOT format
f) Prepare budget -level construction cost estimate
Task 8 — Part A: Easement Preparation and Acquisition
It is assumed that the project will require 3 permanent or temporary construction easements. PACE will
prepare, coordinate with impacted property owners for signature and record all successfully secured
easements. It is assumed that an appraisal is not required for this work and the City will secure any
required Title Reports. If more than 3 -easements are required, PACE will utilize the Management Reserve
Fund as directed by the City.
Task 9 — Part A: Permitting
GeoEngineers and PACE will coordinate with the required permitting agencies and prepare all necessary
permit applications. This task will be initiated as early as possible in the design process, based on the 60%
design plans. The City will initiate coordination with permitting agencies earlier in the project to establish
a relationship. The project is assumed to qualify for a streamlined permit process utilizing the Fish Habitat
Enhancement Hydraulic Project Approval (FHE-HPA) process. GeoEngineers will lead the baseline critical
areas assessment, environmental documentation, agency/tribal outreach and permit submittal processes.
GeoEngineers and PACE will collaborate on permit application materials, as outlined in the attached
Scope of Work from Geoengineers.
Task 10 — Part A: Public Involvement
PACE will assist the City with a public outreach to solicit comments on the design if required. This includes
preparing materials for soliciting feedback from nearby and affected property owners. The task assumes
preparation and attending one community meeting if deemed necessary. The City will be responsible for
providing contact information for the businesses in the project vicinity. If a community meeting is held
South 131st Place Drainage Improvement Project
Scope of Work
Page 5
the City will be responsible for setting up the meeting time and location and notifying the businesses.
PACE will organize any feedback received and prepare a written summary.
Task 11— Part B: Basin Planning
Using data from the stormwater model and coordination with City staff PACE will identify problem areas
or areas of opportunity for improvement within the Southgate Creek Basin. PACE will conduct a site visit
to upstream areas to assess the potential and effectiveness of future surface water improvement projects
outside of the restoration proposed in Part A. Improvements will aim to
0 Improve water quality
9 Reduce any flooding that may be identified
a Reduce undesirable erosion
a Improve fish passage and habitat
Tasks Include:
a) Developing a list of potential treatments or solutions
b) Conduct a site visit to identified potential improvement locations
c) Preparing a Tech Memo summarizing the basin stormwater modeling results as well as proposed
improvements including a project description, sketch and preliminary cost estimate
Task 12 — Part A: Construction Document Development (90% Plans, specifications and estimates)
PACE will provide construction level documents based upon City comments from the 60% plan review. At
this stage PACE will also develop complete project specifications utilizing contract documents and general
provisions from past City projects. Any specific technical specifications will be created as needed. PACE
anticipates the project will bid as one schedule and that the bid documents will be based on the most
recent Washington State Department of Transportation "Standard Specifications for Road, Bridge and
Municipal Construction". It is assumed that the City's review of these documents will be limited to two
reviews and two set of revisions to get the documents "bid -ready".
Task 13 - QA (Quality Assurance)
In order to assure that the final plans and specifications are complete, accurate and appropriate, PACE
will conduct a quality assurance review of the documents prior to each submittal to the City. The review
will consist of a complete sheet -by -sheet and contract document review to assure the City that the
documents meet the standard level of care of our industry.
Task 14 — Management Reserve Fund
If directed by the City, PACE will provide services needed to assist the City with tasks related to this
project that were not specifically addressed in this scope of work. When requested by the City, PACE will
provide a scope and budget for the task identified by the City. PACE will not proceed with the task until
written authorization has been provided by the City.
PROJECT COSTS
The costs associated with the above-described work is shown on the attached spreadsheet.
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