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23-114 - Contract - GeoEngineers, Inc - Geotechnical Services: Tukwila Public Works Maintenance & Engineering Building Project
City of Tuk 6200 Southc nter Bt oulevard,. Tukwila WA 98188 lla Agreement Number 23-114 (b) Council Approval 6/5/23 CONTRACT FOR SERVICES Arn ndment No. 2 en the City of Tukwit n Geolngin ne. That portion of Contract No, 23-114 between the City of Tukwila and G oEngineers„ Inc, is hereby amendxd as follows: The Consultant is retained by the City to perfor Geotechnical services in co action with the project titled Tukwila Public Works Shops Maintenance & Engineering Building Project„ Section 2 Sco I f Servicis: The Consultant agrees to perform the services, identified on Exhibit "A" attached h reto, including the provision of all labor, materials, equipment and supplies. Section 4 Pa t: The Consultant shall be paid by the City for complethxd work and for services rendere under this Agreement as follows: Payment for the work provlided by h le Consultant shall be made as provide* on Exhibit "A* attached hereto, provided that the total amount of payment t thr 'Consultant ht not exceed $138,342,00 (inclurlint ,:shmated expenses) without express written modification of the Agreement signed y the City. The total amount for this .hmendmx,ht is 23„000. AU other [r:iirovisions of the contr ct shall remain in fuli force and effect. Dated this 31st day of May 2024. CITY OF TUKWILA DocuSigned by: P6'h KAM 114,61,c6f, EE-24-3,8054.5B4 Thomas McLeod, Mayor 5/31/24 ATTESTIAUT ENTICATED em—DocuSigned by: nna4R9746FA4F8 Andy Youn, City Clerk CA flZevistd DeceorN: r 20116 GEOENGINEERS, INC Matthew W Smith, SentorPri,dpai APPROVED AS TO FORM e—DocuSigned by: N6AL atorort Office of the City Attorney "'age of GEOENGINEERS 21011 40! Avenue #9510 Seattle,: Washington 98121 206328,2674 April 25, 2024 City of Tukwila c/o Shoes Obletz ,Johnsen 1109 1.9t Avenue, !Suite 330 Seattle, Washington 98101 Attention: Justine! Kim Subject: Request for Additional Services No, 4 City of Tukwila Public Works —Maintenance & Engineering Building Tukwila', Washington rile No, 0259-063-00 This letter serves as Request for Additional Services (RAS) No. 4 between Shiels !0blet2 Johnsen and GeoEngineers, Inc. (GeoEngineers) for additional geotechnical services for the City of T'ukwila Public Works—ridlaintenance & Engineering (M&E) Building, development project located in Tukwila, Washington. The purpose of RAS No, 4 is to cover the costs associated with providing preliminary ground improvement design services for the planned tool store uilding. We propose Iperforming these services for a fee of $20,000. Wo also .anticipate attendin ' several meetings and providing additional consuitation during design. We plan to finalize our geotechnical report using our remaining consultation budge of about $3,500, We request an additional $3,000 for as -needed meetings and consultation. Scope of Services GeoEngineerS additional scope of services will include the following: TASK 200. GEOTECHINICAL CONSULTATION I. Prepare final geotechnical report that, incorporates the final building layout and d t rrnined performance objective for planned structures. TASK 600. PRELIMINARY GROUND IMPROVEMENT DESIGN - TOOL STORAGE BUILDING 2.„ Completing ground improvement design analysis using the existing subsurface data to develop a prellminary stone column element, diameter, spacing, and length required to provide 5,000 pounds per square foot (psf) allowable hearing pressure under shallow and strip foundations and limit differential settlement during an earthquake to less than lb inch, which we understand corresponds to the project Cy of Tulkwtl ApOq 25, 2024 Page 2 criteria for type IV category structures. This proh nary design will serve as a basis of des i or the schematic design phase of the pr ject. A final design that incorporates the final tool storage building layout and loading should be performed at a later date, Final ground improvement design is not included as part of this scope. Providing consultation services during our preliminary ground iinriprovement design development and after th preliminary design package is prepipred and submitted as questions arise. Note that no ,additional cone penetration tests (CPTs), boring.:% sr laboratory tests will be completed as part of this task Additionally, no site visits or field observations are included in our fee estimate for this task. We have assumed that field observation and documentation required during ound improvement installation will be incorporated into an overall on -site construction support scope that encompasses multiple project elements. Terms and Fees The Professional services listed above will be provided on a time -and -expense basis in accordance with the rates and terms of our signed agreement executed on June 20, 2023. The breakdown of our fee for the additional services is summarized in the table below. ADDITIONAL SERVICES T sk 200. Task 2 3 °technical Consultation Finalize eetechnical report . Preliminary Oround In,pr , ent Ground Improvement Crest n Servic Consultation, Services Iga Tool Storage $ 'Task 200 Subtotal Task 000 Subtotal RAS No. 4 'I%I Previously Authorized New Authorized 0 FEE l; ill $3,000 $3,000 $15,000 $5,000 $20,000 $23,000 $115,342 $130,342 0259,06:,:11,00 GEOENG1NEERS City r Tokwaa April 25, 2024 Page 3 Please contact Erik Ellingsen at 206,239,3234 if you have questions regarding this request ler additional services or require additional information. We anticipate that Sues Obletz Johnsen will issue a change order that will reflect the additional scope and fee as summarized in RAS No, 4. Sincerely, GeoEngineers, In , Erik C.0 EIrserPE SeniorGeptechnical Ertjneers Matthew W. Smith, PE Senior Principal EC, looro Z'A So Mettro.rthi Attachnrionts General Condltions - Standard 2021 Schedule al Char gas - Standard 2024 One electronic copy submitted UM 1111NNENIE ANNINNIN MN N The parties hereto halm made, executed and a t Client accepts the scop services and all terms described hereiro ti addition, �trnta signature shall constitut as authorization to proceed on the date Rated below Client's 1p:hued/typed 'nen onlla 4, such authorization has been oth rivise provided In writing. Z dA, Simpson, PE Senior Geotechnicall Engineer oTuwfla CMANIZATION DOH to this Agreement as of the day and year first bove written, 5,MINATURIE PED P ED NAME atedieMtuall with contralethg authority, If MN y signature below, Propeetoory recticeo The cognates of boo is decameter. are boureigrom to Cembegioncers, Me, and are irecuricel ardaty tot gosoa by tau beeres and thetr gas:Iran Moms to emoratorre tioulanaincomrs' cagoboto tots and umbersto rating of Fe:great goo et retro ents: as they coolote podorrning wwwes preuoted ter a strectec oroject. Cuomo coor tars document or lore toonteratio fumy moot be derryli reed to are uthettor et es roithero kb ortrigeorn corattent of areuengionetto 01,41 ainte Afi? ettOniC frj, HTL NICSIAT DV hard cootty oforgettearnat threettreent cure* teat, tattoo oregeor treoutret, or outgoderg, end guy ettoolorn met ore ogle a copy roor gm 0 6 re nal documen Thin cat e ogee« cot er, armed by LI'd eningi donee, Mc, Bed Mb serve as the orterotar document of record, Co up too dr, re Croorotot ro alarm et let go Jo to, oalt r or, roma egg, Fte. 56 0259-06300 GEOENG NEE Page 1. of 2 Schedule of Charges - 2024 COMPENSATION 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 Staff 1 Engineer Staff 2 Scientist Staff 2 Engineer Staff 3 Scientist Staff 3 Engineer Project Scientist 1 Project Engineer 1 Project Scientist 2 Project Engineer 2 Senior Engineer/Scientist 1 Senior Engineer/Scientist 2 Associate Principal Senior Principal TECHNICAL SUPPO STAFF Administrator 1 Administrator 2 Administrator 3 CAD Technician CAD Designer Senior CAD Designer GIS Analyst Senior GIS Analyst GIS Coordinator *Technician firSenlior Technician *Lead Technician Geotechnical Construction Specialist Environmental Database Manager Health and Safety Specialist Health and Safety Manager $ 146/ hour $ 154/hour $ 167/hour $ 175/hour $ 191/hour $ 198/hour $ 220/hour $ 221hour $ 228/l r $ 234/hour $ 255/ hour $ 279/hour $ 292/hour $ 320/hour $ 340/ hour $ 103/hour $ 11S/hour $ 136/hour $ 132/hout $ 155/houT $ 1 /hour $ 165/hour $ 180/hour $ 200/hour $ 114/hour $ 136/hour $ 146/hour $ 191/hour $ 226/hour $ 146/hebr $ 200/hour *Hours in excess of i8 hours in a day or 40 hours in a week be charged at one and one -quarter times the hourly rates listed a bove Contracted professional and technical services will be charged at the applicable hourly rates listed above. Staff time spent providing expert services in idisoutes,, mediation, arbitration and litigation wall be Wed at ore 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 foregoini 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 proiectispecific basis, Associated Pr ject Costs (APC) Associated Ptieject, Casts (APC) equal to six percent (6%) cif 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 ota hourly rates or direct expenses, Scaedute_GdoEngineem Standard-2024 GEOENG1NEERS Page 2 of 2 Et)titPMENT Air Quality Equipment, per Day 210,00 Air Sparging Reid Test, per Day 1.10,00 ,Airisrapor Monitoring, Equipment (ND, 5-Gas Meter r Day 110.00 30,00 Asbestos !Santrtie kilt, Each $ Blostmate,„ per Dr 120.00 Ei&M SamPler, per Day 150,00 DO (Dissolved Oirygen) IL Each 25.00 Dic ynamCone Penetrometer. per Di $ 45.00 E-Tape (Electric Tape}, per Day 35,00 Electric Density Gauge, per Day 1.10.00 Electric Density Gauge, per Week 430,00 Electric Density Gauge, per Month 1,400.00, EnWronmentai Exploration Equipment, per Day 22500 Field Data Arquisidion Equiprnent, (Nate Tatheti, per Day 55.00 Field tablet, per Week 200.00 750.00 Field ablet, per Month Field tablet with. Cellular, per Day $ 75.()0 Field Tablet with Cellular, per Week 300„(X), Field Tablet with Celiular, per Month 1,, 000 Field Gear / Peoarinaissance, per Day 55.00 Gas Detection Melers, per Day 105.00 Generator, per Day 110.00 Groundwater Pressure 'Transducer w/ Datalogger, per Day 55„00 Groundwater Pressure Transducer &logger, per eek 220,00 Hand Auger, per Day 1.00.00 inclinometer Probe,. per „, ay, 1 Day minimum 210,00 interface Pmbe,, Per Day 65„00 hen Test kit, Each 25,00 Laser Level, per Day 60.00 Low Fkwy Groundwater Sampting Equipment, per Day 235 00 Multiparerneter Water Quality eter,, per Oey 8 Nuclear Density 'Gage, per Hour„ 1/2 Day minimum 1:(°)G°1 Perista50,,00ltic Pump, per Day $ pH ProbelMeter per Day 2000 P1 PIO or OVA. per IDay 1700 30"000 Rock/Slope Fall ProteticonyEdigging lEquipmeet„ per ay 0 Saximeter„ per Day Scuba 6)Diving Gear, per Day/per Di ( ver ,(1C1T)0)1 Shallow Soil Exploration lEquipment, per Day 60,00 Soill Field Screentrig, Equipment, per Day 20„00 Sod Sample K20.00it, Each Steam How Meter, per Day ,20.00 Strain Gauge Readmit Equiprnent, per Day 50,00 Surface Water Flow Meter, per Day, 1/2 ,day minimum :50.00 Surface Water Quality MOnnoring Equipment per Day 50,00 Turbidity Meter, per Day 50,00 Vehicle usage, per Mille„ or $30/halltday, whichever is greater 0,65 Specialized and 'miscellaneous field eqatilpirriect not listed above MII be quoted on a projectispecific basis, OTHER SERVICES, SUPPLIES AND SPECIAL TAXES Charges for whites, equipment supplies and facilities not furnished tn accordance with the above schedule, and any unusual items of expense not customarily incurred in our normal operations, are char ed at cost plus 15 percent This includes !shipping charges!, subsistence, tran!sportation„ prtnting and reproduction, !miscellaneoirs supplies and rentals,. surveying services, drillingequipment, construction equipment, watercraft,aircraft, and special Insurance which may be required, Taxes required by local jurisdictions for projects in specific geographic areas wilt de charged to projects at direct cost. Per diem may be charged 0 reu or subsistence and lodging,. Routinely used field supplies stocked in-house by GeoEngineers,, at current rates, list available upon e quest, inihouse testing for geotechnical soli characteristics at current rates, tist available upon request. AU rates are subject to change upon notification. Schedule_GeoEngineers Standard - 2024 GEOENGINEERS City of Tukwila 6200 Southcenter Boulevard, Tukwila WA 98188 Agreement Number: 23-114(a) Council Approval 6/5/23 CONTRACT FOR SERVICES Amendment No. 1 Between the City of Tukwila and GeoEngineers, Inc. That portion of Contract No. 23-114 between the City of Tukwila and GeoEngineers, Inc. is hereby amended as follows: Section 1 Pro'ect Desi 'nation: The Consultant is retained by the City to perform Geotechnical services in connection with the project titled Tukwila Public Works Shops Maintenance & Engineering Building Project. Section 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. Section 4 Payment: The Consultant shall be paid by the City for completed work and for services rendered under this Agreement as follows: Payment for the work provided by the Consultant shall be made as provided on Exhibit "A" attached hereto, provided that the total amount of payment to the Consultant shall not exceed $115,342.00 (including estimated expenses) without express written modification of the Agreement signed by the City. The total amount for this amendment is $88,556. All other provisions of the contract shall remain in full force and effect. Dated this 26th day of CITY OF TUKWILA DS DocuSigned by: QU L& vel 1F�0.2 Allan Ekberg, Mayor July 7/26/2023 ATTEST/AUTHENTICATED LDoc_uSigned by: austy 6)-1r 88678483CB594E7... GEOENGIN , 2023. S, INC 11:33 AM P T , Ding Ch tt Pri " ipal Christy O'Flaherty, MMC, City Clerk CA Revised December 2016 APPROVED AS TO FORM EDocuSigned by; GAi atIAL1 5E499CA4165E452... Office of the City Attorney Page 1 of 1 GEOENGINEERS /, 17425 NE Union Hill Road, Suite 250 Redmond, Washington 98052 425.861.6000 June 28, 2023 Shiels Obletz Johnsen 1109 1St Avenue, Suite 330 Seattle, Washington 98101 Attention: Justine Kim Subject: Request for Additional Services No. 1 - Revised City of Tukwila Public Works - Maintenance & Engineering Building Tukwila, Washington File No. 0259-063-00 This letter serves as Request for Additional Services (RAS) No. 1 between Shiels Obletz Johnsen and GeoEngineers, Inc. (GeoEngineers) for additional geotechnical services for the City of Tukwila Public Works - Maintenance & Engineering Building development project located in Tukwila, Washington. The purpose of the RAS No. 1 is to: (1) perform a pavement evaluation, as outlined as Optional Task 101 in our proposal, (2) complete a site-specific ground response analysis (GRA) to develop site-specific seismic design parameters and (3) perform pilot infiltration testing (PIT). We have been requested to perform the pavement evaluation as part of our investigation. Per American Society of Civil Engineers (ASCE) 7-16 Section 20.3.1, the site is Site Class F due to the presence of potentially liquefiable soils on site. Site- specific GRA is required for Site Class F sites per Section 11.4.8 for buildings that have fundamental periods of vibration that are greater than 0.5 seconds. Based on our discussion with PCS Structural Solutions (project structural engineer), we understand that the fundamental period of the planned Maintenance & Engineering building is approximately 0.6 seconds. We have included scope (Task 300) to complete a site- specific GRA per code requirements. We understand that the project will include design and construction of new stormwater management facilities in accordance with the King County Surface Water Design Manual (SWDM). Task 400 will consist of completion of up to five small-scale PITS to evaluate the suitability of infiltration at the site and to develop the design infiltration rates. SCOPE OF SERVICES GeoEngineers' additional scope of services will include the following: "Task 11„01„„„, IPavemeurt n„, 1. Core eight select locations and measure the existing pavement section thicknesses. We will summarize the results of coring and provide recommendations for new pavement and guidance on re -use of existing pavement. Slhililelll 1[311 P:x.11elhu .0 June 28, 2023 "Task 300 Shite SIped'Iifc Seliisurnnnliic Resp a,unnsc Aunnalllysliis Page 2 2. Subcontract a geophysical subcontractor to complete geophysical testing of the site. Our fee estimate includes coordination and field labor support provided by GeoEngineers. 3. Complete a site-specific GRA to develop site-specific risk -targeted maximum considered earthquake (MCER) and design earthquake (DE) response spectra and corresponding design acceleration parameters per ASCE 7-16 in support of the structural design. The site-specific GRA will consist of the following: 111111111111 Complete a site-specific probabilistic seismic hazard analysis (PSHA) using the United States Geological Survey (USGS) 2018 seismic source characterization (SSC) model to compute the input rock outcrop/firm ground response spectrum. 111111111111 Select and modify a suite of horizontal seed ground -motion time histories that are compatible with the target response spectrum derived from the previous step and representative of the seismic sources that contribute to the total seismic hazard at the site. 111111111111 Develop Vs profiles and one-dimensional (1D) soil models representing the subsurface conditions encountered across the site based on the geophysical and geotechnical exploration program results. 111111111111 Complete total stress site-specific GRAs to compute ground surface response spectra and develop site-specific soil amplification factors (Afs). 111111111111 Develop site-specific MCER and DE response spectra per ASCE 7-16 and applicable amendments based on the GRA results. 111111111111 Prepare a report summarizing the GRA results. "Task 400 IlPliilllt Illunntliillltnratliinr "restliing Pr guraurnnn 4. Complete one small-scale PIT per facility as required by the 2021 King County SWDM. At this time, we understand that the final number and location of stormwater facilities has not been confirmed. For planning purposes, we have assumed up to five stormwater facilities. If less than five facilities are planned, we only perform the necessary PIT testing at the planned facilities (and the cost will be reduced accordingly). The PITs will be completed with the assistance of an excavation contractor under subcontract to GeoEngineers who will excavate the test pits for the PITs. Water for the tests will be provided by the excavation contractor using a water truck. Our excavation subcontractor will provide hosing to run from the water truck to the PIT locations. The PITS will also be observed by an engineer or geologist from our firm who will log the subsurface conditions and conduct the testing. The following tasks and assumptions are included in this scope item: Complete one PIT per facility at the project site (up to five) within the footprint of the proposed infiltration facilities. The purpose of the PITS is to evaluate infiltration potential and to develop design infiltration rates. We estimate that the testing will require one field staff and 3/ days to complete the excavation, testing, and backfilling. Sloped and/or benched excavations may be needed to complete the test pits required to run the PITS. To facilitate testing, we plan to excavate each test pit the day prior to testing. We will secure the test pits overnight by covering them with steel plates and surrounding them with temporary fencing provided by the excavation contractor. Review available survey for the subject site. GEOENGINEERS 1\1o. 0259-063-00 Slhlie Ills II 11 ss.0 llunc. 28, 2023 Page 3 Work with the contractor and the on-site Tforce facility manager to mark the test pit locations, coordinate schedule, access, water supply and right -of -entry. Arrange a utility locate for the planned exploration locations using the one -call service. We assume Tforce will complete a secondary review of on-site utilities and a private utility locator will NOT be retained. Backfill the PIT test pits with material removed from the test pits and tamping the soil in place with the excavator bucket. 5. Process and interpret the data to evaluate the feasibility of infiltration at the site and provide recommended design infiltration rates, if appropriate. The summary of testing and the recommended infiltration rates will be included as an addendum to the geotechnical report. 6. Evaluate physical and engineering characteristics of the soils based on laboratory tests performed on selected samples obtained from the test pits. We anticipate that one sieve analysis will be completed from a sample taken from the layer of interest in each test pit and PIT (up to five total). 7. Prepare an addendum to the existing geotechnical report. This will include the test pit logs, infiltration test procedures, infiltration testing results, and conclusions regarding infiltration feasibility. TERMS AND FEES The professional services listed above will be provided on a time -and -expense basis in accordance with the rates and terms of our signed agreement executed on June 20, 2023. The breakdown of our fee for the additional services is summarized in the table below. TASKS 300 AND 400. SITE-SPECIFIC SEISMIC RESPONSE ANALYSIS AND PIT TESTING PROGRAM Task 101. Pavement Evaluation 1 Services Fee ($) Core eight select locations and measure pavement section thickness, prepare pavement recommendations Task 300. Site -Specific Seismic Response Analysis Subcontracted geophysical testing, coordination, and GeoEngineers field labor support 3 Site-specific ground response analysis and reporting $24,000 Task 300 Subtotal $30,000 2 $6,056 Task 101 Subtotal $6,056 $6,000 Task 400. PIT Testing Program 4 and 5 Review, coordination, and completion of the test pit and infiltration testing $7,700 (per facility) 6 Data reduction and analyses $1,000 7 Lab Testing $300 8 Geotechnical report addendum $1,500 Task 400 Subtotal $10,500/facility up to $52,500* RAS No. 1 Total $88,556* Previously Authorized Budget $26,786 New Authorized Budget $115,342* *Note: Assumes up to five stormwater management facilities. GEOENGINEERS /�,�' 1\lo. 0259-063-00 Slhlie Illn tllluII P:x.11aulhu n .0 lluirue 28, 2023 CLOSING Page gip, Please contact Erik at 206.239.3234 if you have questions regarding this request for additional services or require additional information. We anticipate that Shiels Obletz Johnsen will issue a change order that will reflect the additional scope and fee as summarized in RAS No. 1. Sincerely, GeoEngineers, Inc Erik Ellingsen, Senior Geotechnical Engineer E.E.IKFIC:Ieh King H. Chin, PE Principal The parties hereto have made, executed and agreed to this Agreement as of the day and year first above written. By signature below, Client accepts the scope of services and all terms described herein. In addition, Client's signature shall constitute as authorization to proceed on the date listed below Client's printed/typed name unless such authorization has been otherwise provided in writing. Shiels Obletz Johnsen ORGANIZATION * SIGNATURE DATE TYPED OR PRINTED NAME *Individual with contracting authority. Prolprrietary Notice: The contents of this Docuiment acre Iprrolprrietairy to GeoEngineers, One. and are untended solely for use by our clients and their design teams to evaluate GeoEngineerrs° calpabilities and understanding of Iprroject requirements as they relate to Iperrfoirmiingtlhe services Iprolposeu 'for a specific (project. Copies of this Document or its contents may not be disclosed to any other parties without the written consent of GeoEngineers. Disclaimer: Any electronic form, facsimile or IharrU copy of the original Document (email, text, table, and/or figure), if Iprrovideu, and any attachments are only a copy of the original document. The original document is stored by GeoEngineers, One. and will serve as the official document of record. Copyright© 2023 by GeoEngineers, One. All rights reserved. GEOENGINEERS ��; ivo. 0259-063-00 23-114 Council Approval N/A Qspqptbm! City of Tukwila Public Works Geotechnical Consultant for the Maintenance & Engineering Building Project March 8, 2023 2101 4th Avenue, Suite 950 Contact: Erik Ellingsen, PE Seattle, Washington 98121eellingsen@geoengineers.com Telephone: 206.728.2674 Principal: King Chin, PE www.geoengineers.comkchin@geoengineers.com REQUEST FOR PROPOSAL PROPOSALCERTIFICATION FORM TO: SOJ The undersigned provider hereby certifies as follows: 1.That he/she has read the City of Tukwila RFP and the following Addenda and to the bestof his/her knowledge has complied with the mandatoryrequirementsstated herein: Addenda NumberIssue Date ____________________________ 13/3/2023 ____________________________ ____________________________ 2.That he/she has had the opportunity to ask questions regardingtheRequest for Proposal, and that if such questions have been asked; they have been answered. 3. Seattle, WA8thMarch Dated at _______________, this _________________ of _________________ 20. Senior Geotechnical Engineer ________________________________ ________________________________ (Signature)(Title) Erik Ellingsen, PEeellingsen@geoengineers.com ________________________________ ________________________________ (Print Name)(Email Address) GeoEngineers, Inc.206.239.3234 ________________________________ ________________________________ (CompanyName)(Telephone Number) 2101 4th Avenue, Suite 950206.728.2732 ________________________________ ________________________________ (Address)(Fax Number) Seattle ________________________________ (City) Washington ________________________________ (State) 98121 ________________________________ (Zip) Page2of7 2 2/!Fyfdvujwf!Tvnnbsz The City of Tukwila (City) is committed to fostering a very high level of public safety and providing services to the more than 20,000 residents who call the city home. And this is at the core of what we do. For 43 years, GeoEngineers has applied our foundational principles of integrity, service, technical excellence, and sustainability to work with our local communities to offer technically sound, environmentally conscious, been a trusted partner to the City since the early 1980s, providing services on 50 projects over that span. In submitting this proposal, we commit to continuing to deliver innovative, cost-effective solutions to the City for the Maintenance & Engineering (M&E) Building Project. Our team provides the following advantages: Knowledge of the Tukwila area. GeoEngineers has provided services on more than 460 projects within the City of Tukwila, including numerous projects in the immediate Duwamish River Valley vicinity of the M&E Building project site where soft ground and high seismicity challenges require creative ideas and specialized expertise to manage risk and construction costs. This experience gives us a running start on understanding the geotechnical conditions of the area. Collaborative, coordinated approach to projects. Through our extensive experience working with cities and local agencies, we understand the need to perform as an extension of your staff and to work together with a shared purpose to meet the project objectives. Our team is committed to continually looking for opportunities to provide short- and long-term value, reduce overall project costs through value-engineered design solutions, and control construction costs through clear, Technical expertise on soft ground sites with high seismicity. Ground improvement will likely be needed to mitigate the liquefaction hazard for the planned building to meet code requirements. GeoEngineers was the geotechnical engineer of record on several nearby projects with similar building types where ground improvement was successfully implemented. Most geotechnical consultants will recommend subcontracting the design of ground improvement as a design-build item, often creating complex and confusing contract scenarios. GeoEngineers has in-house ground improvement design expertise and can perform this as an add-service to the project, providing value to the project by tailoring the design to the needs of the project. GeoEngineers looks forward to applying our local experience, in-house capabilities, and project site history to work with the City on this project. Please contact Erik Ellingsen at 206.239.3234 with any questions about our submittal or for more information. 3 GeoEngineers offers an integrated suite of services for clients looking to build communities, harness and manage the earth’s expertise in a broad range of disciplines to deliver results for our clients and improve our world. Since our founding in 1980, we have successfully completed more than 54,000 projects worldwide for clients in the energy, transportation, water and AREAS OF SPECIALIZATION AND EXPERTISE A Deep Foundation in Geotechnical Engineering Geotechnical engineering is a key element of the design process for the FIRM NAME construction of all infrastructure and can have a very large impact on GeoEngineers, Inc. project costs. A vast resource of technical capabilities, decades of local geologic experience, and a focus on results is GeoEngineers’ ADDRESSES formula for the successful completion of our clients’ projects. Our Corporate Headquarters extensive geotechnical experience includes work on low-rise, high- rise, residential, and commercial buildings; pavement rehabilitation and design; slope stabilization; seismic design; bridges and retaining walls; watershed and hydrologic analysis; and utility infrastructure 2101 4th Avenue, Suite 950 Our services range from small geotechnical consultations based on 1101 Fawcett Avenue, Suite 200 a single site visit, to services in remote locations, to the development of complex designs based on detailed reconnaissance, subsurface CONTACT INFORMATION 206.239.3234 eellingsen@geoengineers.com familiar with the Local Agency Guidelines (LAG) Manual procedures DATE ESTABLISHED and requirements, local codes and permitting strategies, and use September 1, 1980 design and construction standards that expedite getting projects permitted and completed. GeoEngineers provides innovative approaches to solving geotechnical engineering challenges. Our opinions, recommendations, and designs are based on a thorough understanding of site soil and groundwater conditions, and how these elements impact either proposed or existing infrastructure. The following are some of the geotechnical engineering services we provide: Predesign phase Research existing in-house informationGeologic hazard evaluations Site selection assistance (explorations and testing)Fast-tracked site feasibility studies Subsurface investigations and soil characterization 4 Design phase Foundation system analysis (deep and shallow foundations), evaluation, and design Slope stability analysis and stabilization Drainage, dewatering, and seepage Permanent erosion control designs Landslide evaluation, stabilization, and repairs Temporary shoring and permanent earth retention Ground improvement design for seismic and geologic systems hazards mitigation Construction phase Earthwork monitoring and testingGround improvement construction observations Excavation, trenching and shoring design, and Foundation monitoring and subgrade evaluations monitoring Pavement subgrade evaluations Construction dewatering and groundwater control PROJECT EXPERIENCE The following are a few examples showing GeoEngineers’ experience providing design and engineering services for projects similar in size, complexity, and scope to the M&E Building Project. Tukwila School District, Thorndyke Elementary School Improvements GeoEngineers provided geotechnical engineering services for the Thorndyke Elementary School Improvements project. Improvements included new modular classrooms, parking lot expansion and including bioretention facilities. Other improvements included an the southeast corner of the site. GeoEngineers explored subsurface conditions to form a basis for developing geotechnical design and construction recommendations for the proposed improvements. This included reviewing geologic data, conducting laboratory testing geotechnical seismic information and recommendations for site preparation and earthwork. GeoEngineers also provided construction observation services. Sound Transit, Puyallup Station Parking & Access Improvements GeoEngineers is providing geotechnical and environmental services for a design-build contracted parking garage project development of ground improvement designs that met Sound Transit’s design standards while remaining cost-effective. The project also includes remediation activities for contaminated soil and groundwater, including remedial excavation and soil management, groundwater treatment using an oxygen release compound (ORC), underground storage tank (UST) removal, and monitoring well decommissioning. 5 building located approximately 500 feet away from the Pier 36B on the north. Building 7 was constructed around 1941 and design of the building. For this project, we performed dynamic deformation analysis using the computer program FLAC using the advanced effective soil models to realistically assess the effects of soil liquefaction on the existing foundations and to develop a compaction grouting ground improvement design to mitigate liquefaction hazards under the design earthquake events. Based on the results of the FLAC analyses, we were able to limit the extent of the ground improvement depth and incorporate the effects of the timber piles in the ground improvement design. Seattle Opera, Mercer Arena Redevelopment/Seattle Opera at the Center (SOATC) GeoEngineers provided geotechnical engineering services to support the SOATC project to be located within the footprint of the existing The project consists of constructing a four-story, 105,000-square- rehearsal, community, and education spaces. The new building is The site is underlain by variable thickness of compressible soils. As a result, the new SOATC building will be supported on augercast piles. GeoEngineers assisted the project team with development of temporary excavation/excavation support plans utilizing remnant walls of the former Mercer Arena facility. During construction, GeoEngineers provided geotechnical special inspection and observed the completion of compression, tension, and lateral pile load testing. The results of the pile load testing validated the design pile capacities. MainStreet Property Group, LLC, Woodinville Civic Center GeoEngineers provided ground improvement design and construction oversight for the construction of a new civic center building in concrete rigid inclusions of variable length to support the building and provide increased bearing capacity and decreased settlement, considering the complex foundation layout and highly variable depth during construction to update ground improvement lengths based on actual bearing depths encountered and subsurface exploration information obtained after design completion. 6 Tacoma School District, New Science and Math Institute (SAMi) Facilities GeoEngineers provided geotechnical engineering and environmental services to support design of the proposed Tacoma Public Schools provided include review of existing information on subsurface conditions in the project vicinity; multiple visits to the project site to mark out preliminary locations for test pits explorations; exploration of subsurface conditions by advancing up to six test pits on the subject property, using subcontracted excavation equipment and operators; geotechnical laboratory testing on selected soil samples; laboratory testing involving particle size gradation analyses, moisture content determinations, organic content, and Atterberg limit determination; submission of soil samples for chemical analysis; evaluation of analytical data with respect to current Ecology Model Toxics Control Act cleanup levels geotechnical seismic design information in accordance with 2012 International Building Code criteria; recommendations for site preparation, earthwork, shallow spread footing design, allowable soil bearing pressure, lateral resistance values conclusions, and recommendations. EvergreenHealth, Medical Center Campus Infrastructure Upgrade GeoEngineers provided geotechnical engineering and performance-based seismic design services in support of the planned the oldest buildings, a modernized Family Maternity Center, and the construction of a new Critical Care Unit and relocating it to by means of conventional geotechnical explorations and non-invasive surface wave geophysical testing. GeoEngineers provided geotechnical recommendations for shallow and deep foundations and stability analysis of a terraced Keystone block retaining wall system supporting an existing transmission tower. The performance-based seismic design consisted of 17 BSE-2N, BSE-1N, BSE-2E, and BSE-1E hazard levels and providing ground-motion time histories in support of structural nonlinear response history analysis completed to optimize the planned seismic upgrades to the campus. MultiCare, Mary Bridge Children’s Hospital GeoEngineers completed subsurface explorations and provided geotechnical design recommendations for the Mary Bridge Site improvements included construction of a four-story structure, including a basement with a 16,800-square-foot building requirements which were left in place and used as portions of the permanent basement walls, and earthwork construction current USGS seismic source characterization. The result of the advanced seismic analysis was a 20 percent reduction in services. 7 Great Wall Development, Inc., Washington Tower Development GeoEngineers provided geotechnical engineering services for the (a 13-story hotel and an 18-story apartment complex) with a four- level above grade parking garage and an amenity space between lateral capacity of the deep foundations, particularly for the seismic Our team completed a preliminary engineering analysis (liquefaction and pile capacity analyses), estimated the required preliminary pile pile load tests for seismic design of the building per 2012 IBC and (including static and seismic axial capacity, lateral pile capacity, settlement, axial pile springs, and drivability), lateral resistance for foundation elements including pile caps, building subgrade requirements, permanent below-grade walls, pavement and subgrades, earthwork, and a complete ground improvement design for the alternate foundation support system consisting of mat foundation supported on improved ground. Skagit Valley Community College Fire Training Station and storage areas, with a surrounding concrete apron and paved practice driving track. GeoEngineers provided foundation recommendations. FIRM PERSONNEL features geotechnical engineers, geologists, geological engineers, hydrogeologists, Cfmmjohibn Seattle, Tacoma, Redmond, and Bellingham feature more than 190 staff, XBTIJOHUPO 66 Principals and Associates 120 Project Managers (PMs) Sfenpoe Tfbuumf 85 Staff Engineers/Scientists 43 Technicians N'F!Cvjmejoh!tjuf 22 GIS/CAD nb Ubdp 53 Corporate Professionals 8 4/!Qspkfdu!Bqqspbdi!boe!Nfuipet The project will include development of a new 40,000-square- foot single-story building, ancillary structures for covered parking, and site retaining walls. Based on the RFP Addendum #1, we understand that the planned building is considered an essential facility, and will be designed in accordance with IBC Chapter 1604.5 as a Category IV type structure. The site lies within a “high” potential for liquefaction zone (Palmer et al., 2004). Our approach to this project will rely heavily on our extensive nearby experience with other essential facilities projects with Site Class F conditions, in addition to our project manager’s familiarity with the project, having recently worked on the early phases of design while at his prior Class F conditions can typically be designed with standard lateral force-resisting systems when considering Category I GeoEngineers' project experience near the M&E Building project site. project structural engineer and project team to inform these decisions and optimize the building design to meet the City’s intend performance and save on cost. A preliminary geotechnical study, dated August 29, 2022, was performed by Langan. To supplement the previous site study and provide design-level recommendations for the new M&E Building, we propose to perform additional subsurface the site. Our design-level investigation will include performing a full assessment of the geologic hazards at the site, including landsliding, liquefaction, and lateral spreading. Our proposed subsurface exploration will consist of advancing one Cone Penetration Test (CPT) to a depth of 100 feet and drilling one boring to a depth of 40 feet. The data collected from the CPT will be used to further evaluate the liquefaction and lateral spreading hazards, as well as to inform the potential ground improvement design. The samples collected from the boring will be tested for particle size and plasticity characteristics, which will also be helpful for characterizing the subsurface conditions. The boring will be converted to a standpipe piezometer monitoring well. The monitoring well will be instrumented with a pressure transducer that will measure and record groundwater levels over time. on our review of the Phase II ESA performed by Sound Earth Technologies for the site, there is no reported evidence of soil or groundwater contamination in the vicinity of the planned geotechnical drilling. Therefore, we have assumed that the soil and groundwater generated from the drilling will not be regulated material nor require special disposal. The soil and during drilling, we will notify the City and the excess soils will be placed in drums and left on-site for further characterization. Characterization and disposal of potentially contaminated soils will be provided for an additional fee. After completing the subsurface exploration, we will then evaluate the physical and engineering characteristics of the soils based on laboratory tests performed on samples obtained from the boring. The laboratory tests may include moisture content, investigation and our extensive understanding of Duwamish River Valley soils, we will develop design-level conclusions and recommendations regarding: Recommended type(s) of foundation systems, as appropriate Recommended allowable bearing pressures, as appropriate Recommended soil friction and passive pressures for foundation system, as appropriate 9 Recommendations for ground improvement design criteria An estimate of total and differential foundation settlements for the recommended foundation types Subsurface drainage system to be used for slabs-on-grade and footings Suitability of on-site materials or requirement for off-site materials Compaction criteria Evaluation of Environmentally Critical Areas Subgrade preparation and modulus of subgrade reaction to be used for slabs-on-grade Recommendations for site preparation and temporary sloping Recommendations for site retaining walls Determination as to whether a capillary break or moisture/vapor barrier are required Our team's extensive familiarity with the project site, Determination as to whether soil design parameters can be increased as well as the surrounding area and wetlands, gives for short-term loadings us a solid head start on this project. In addition to the above scope, we understand that the project intends to rely upon the existing pavement. To better assess the condition of the existing pavement and provide recommendations for new pavement design as needed, we present an optional scope to core select pavement locations and measure the existing pavement section thicknesses. review pre-construction submittals and provide feedback on value engineering. As previously mentioned, GeoEngineers can design the ground improvement, and we recommend that this be performed by the geotechnical engineer of record can prepare a scope and fee for this design work separately, as needed. Our construction phase services will include pre-construction consultation, pre-construction meeting attendance, geotechnical special inspection, and preparation of summary letters. Our services during construction will be tied to the selected type of foundation as well as the general contractor’s construction to estimate without a detailed schedule. Therefore, for planning purposes, we have prepared full-time and part-time weekly construction rates. Once a detailed schedule is available, we can provide an updated scope and fee. GeoEngineers staff have provided services from preliminary design through construction on : 5/!Ufbn!boe!Ufbn!Pshboj{bujpo GeoEngineers has assembled a team with exceptional depth of knowledge and range of management skills that enables us to successfully execute the work on schedule. Our key personnel are introduced below, along with their proposed roles and responsibilities for this project. Full resumes for Erik, King, and Michelle are provided in the appendix. Erik Ellingsen, PE | Senior Geotechnical Engineer Erik, as Project Manager and Geotechnical Engineering Lead, will lead our team and be participate in meetings and provide consultation to the project team. King Chin, PE | Principal Geotechnical Engineer King, as Principal-in-Charge and Seismic/Performance-Based Engineering Lead, will provide technical QA/QC, evaluate and provide recommendations for seismic and ground improvements, participate in meetings, and provide consultation to the project team. Michelle Deng, PE | Project Geotechnical Engineer Michelle, as Project Geotechnical Engineer performing engineering analyses, performing seismic hazard analysis and probabilistic liquefaction evaluation, and preparing technical reports. 6/!Bwbjmbcjmjuz!boe!Dbqbdjuz GeoEngineers is dedicated to providing the excellent client service and we place a high value on project collaboration with our clients and other involved parties. Our team is adept at communicating and collaborating, a strength we have utilized often during the COVID-19 pandemic. available at any time or location to communicate and present key information or discuss critical decision points. Seattle (Erik Ellingsen) and Redmond (King Chin your needs with 100% effort when needed, and will be available immediately. ANTICIPATED AVAILABILITY FOR PROJECT DURATION SCHEMATIC DESIGN CONSTRUCTION CONSTRUCTION NAMEDESIGN DEVELOPMENT DOCUMENTS PHASE PHASEPHASEPHASE Erik Ellingsen King Chin Michelle Deng subgrade checks, and earthwork. Our fees for these services are dependent upon the actual duration planned by the contractor. For planning purposes, we estimate a full-time construction rate of $8,000/week, and a part-time construction rate of $4,000/week. Once a detailed schedule from the contractor is available, we can , we will perform observation during geotechnical-related construction activities to meet special inspection $23,906 $8,921$2814.75$11,444 $6,056$2,880 12$2,880 8.5$2,000$9204$1,50019.5$3,958$3,90515.5$6,056 $5204$1,100 Task Subtotals $26,786 OPTIONAL TASK 101$6,056 $12,647$1,54599.75 21.5 Expenses TASKS 100 & 200 Direct (Travel/ $77 CADSubcontractors (Drilling/CPT & Utility Locating) 7$1,0152$250$3,036 $690 TOTAL FEE FOR 8$1,1606$750 $125 52.5$7,6138 ,233$1,595$1,450 Staff Engineer 4$5804$580 Erik Ellingsen, PE, Senior Geotechnical Engineer | eellingsen@geoengineers.com | 206.239.3234 (Deng) 8.5$1 $145 Opuf;!Evsjoh!dpotusvdujpo-!hspvoe!jnqspwfnfou!eftjho!tfswjdft!bsf!opu!jodmvefe-!cvu!bsf!bwbjmbcmf!jg!sfrvftufe/ 1110 $915$915 Principal (Chin) $305 23.75$5,70015.5 6$1,4403.5 4.5$1,0803Subcontract coring, review, and memo3.5$84036$1,4406 3.75$900 Sr. Engineer 2 (Ellingsen) $240 prepare a detailed estimate of our fees during construction. Task 300 – Construction Phase Monitoring and Testing GeoEngineers’ fee estimate is presented below. 4Soil sample review and lab testing Task 100 – Subsurface Investigation and Testing Task 101 – Pavement Evaluation (OPTIONAL) 2Subcontract drilling and CPT tings and Consultation 3Groundwater level logging Hourly RateSUBTOTALS Staff Role and Name Task 200 – Geotechnical Consultation 1Utility locating Uibol!Zpv" Engineering 9Reporting 7/!Qsjdjoh Mee Task 1011 For 21 Bqqfoejy!B Key Personnel Resumes B.2 ERIK C. ELLINGSEN, PE | SENIOR GEOTECHNICAL ENGINEER As a senior project manager, Erik’s experience includes managing geotechnical projects from conception to completion, coordinating complex subsurface investigations, performing engineering analyses, supervising staff engineers during construction, and preparing technical and testing, foundation subgrade preparation, shoring and excavation monitoring, as well Education experience includes: M.S., Civil Engineering, City of Tukwila, M&E Building Phase 1 1 California State Polytechnic University B.S., Civil Engineering, Project Manager for early geotechnical design of new mechanical and engineering building. California State Polytechnic University limited subsurface exploration and high-level evaluation of the site liquefaction hazard. Erik Professional Engineer: pavement use, and slope stability. California, #81269; City of Tukwila, Fire Station 51 2 Oregon, #96025PE Safety Training for the City as part of its 2016 Public Safety Plan bond measure. Erik led the geotechnical Nuclear Gauge Training effort and worked closely with the project team. Erik also supported the ownership team during construction through contractor claim support. The building is founded on shallow foundations bearing on grade. City of Tukwila, Fire Station 52 2 for the City as part of its 2016 Public Safety Plan bond measure. Erik led the geotechnical effort and collaborated with the project team to develop effective solutions to address project challenges (shallow groundwater, excavation rippability, re-use of on-site soils), and mitigate risk (excavation adjacent to the adjacent single-family residences, moisture transmission). King County, Harborview Medical Center 2020 Bond Program Master Planning 1 of a new behavioral health facility and a new 360 inpatient bed tower. Erik managed the project during the early stages of master planning, which included performing a geotechnical 1. Performed while employed desktop study, regulated building materials surveys, GIS mapping, and EIS preparation. Erik by Langan Engineering and coordinated with the project team to successfully complete these tasks, which included King Environmental Services, Inc. under the direction of Scott Walker, Principal-in-Charge. architect), Vanir Construction Management (project manager), and Magnusson Klemencic 2. Performed while employed Associates (structural engineer). by Hart Crowser, Inc. under the direction of Barry Chen, Principal- in-Charge. B.3 KING CHIN, PE | PRINCIPAL GEOTECHNICAL ENGINEER King has more than 24 years of experience in geotechnical and performance-based engineering has been on geotechnical earthquake engineering, foundation design, site and material characterization, soil-structure interaction analysis, and performance-based design. King has Education earthquake and seismic induced geologic hazards such as liquefaction, lateral spreading and M.S., Geotechnical landslides. King served as geotechnical working group member in an ad hoc effort by Structural University Chapter 18 of the IBC and on a National Science Foundation NEESR review panel that evaluated B.S., Civil Engineering, proposals in the area of geotechnical earthquake engineering. King is a key contributor to the Professional Engineer: Alaska, #12801; Oregon, #85322PE; California, #C80359; MultiCare, Mary Bridge Children’s Hospital Louisiana, #38473; South Carolina, #32617; GeoEngineers completed subsurface explorations and provided geotechnical design Arkansas, #17742; Kentucky, #32732; Delaware, #25756 construction of a four-story structure, including a basement with a 16,800-square-foot building permanent soldier pile shoring requirements which were left in place and used as portions of current USGS seismic source characterization. The result of the advanced seismic analysis was savings. Following issuance of our report, we reviewed and provided comment on geotechnical Great Wall Development, Inc., Washington Tower Development GeoEngineers, with King as Principal-in-Charge, provided geotechnical engineering services hotel and an 18-story apartment complex) with a four-level above grade parking garage and lateral capacity of the deep foundations, particularly for the seismic loading condition, due to Washington State School Seismic Safety Assessment Phase 2 State School Seismic Safety Assessment. King provided input on the geotechnical foundation B.4 MICHELLE DENG, PHD, PE | PROJECT GEOTECHNICAL ENGINEER Michelle joined GeoEngineers in 2015 and specializes in seismic hazard analysis, performance- based engineering, and risk assessment. Michelle has provided seismic hazard analysis for multiple high-rise building projects in Seattle, and various port, dam, design-build includes seismic resiliency and strategic asset management by performing regional seismic hazard analysis and probabilistic liquefaction evaluation. She has provided seismic slope stability analysis and probability of breach evaluations for various dam safety projects. She Education also has provided numerical modeling for shoring-wall construction and foundation design Ph.D. Civil Engineering: projects. Michelle is well versed in code requirements for seismic, liquefaction and lateral Geotechnical Engineering., Missouri University of Science relevant project experience includes: and Technology M.S. Civil Engineering: Washington State Convention Center Expansion Geotechnical Engineering., Missouri University of Science and Technology B.S. Civil Engineering: modeling of the complex south shoring wall located adjacent to the existing 10-foot diameter Structural Engineering, Tongji cylinder pile wall associated with the former Convention Place Station transit facility and the University, Shanghai, China Professional Engineer: Michelle was involved in the numerical modeling of the shoring wall construction sequences California, #89367 spectra in accordance with provisions of ASCE 7-16 for essential facilities. The conditional mean spectrum (CMS) methodology was to provide more realistic and less conservative ground-motion time histories for nonlinear structural analysis. EvergreenHealth, Infrastructure Upgrade Project GeoEngineers provided geotechnical engineering and performance-based seismic design services in support of upgrades to the oldest buildings, a modernized Family Maternity Center, Tower. As part of our design services, we evaluated the subsurface soil and groundwater conditions by means of conventional geotechnical explorations and non-invasive surface wave geophysical testing. GeoEngineers provided geotechnical recommendations for shallow and deep foundations and stability analysis of a terraced Keystone block retaining wall system supporting an existing transmission tower. The performance-based seismic design consisted to develop design response spectra for the ASCE 41-17 BSE-2N, BSE-1N, BSE-2E, and BSE-1E hazard levels and providing suites ground-motion time histories in support of structural nonlinear response history analysis completed to optimize the planned seismic upgrades to the campus. Port of Everett, Waterfront Place Center Development GeoEngineers provided geotechnical services in support of the design and construction for the new retail buildings at Parcels A7, A8, A12, and A17 along the existing bulkhead at the Port of Everett. Michelle performed the evaluation of the soil liquefaction potential and the corresponding lateral spreading and completed the design of a ground improvement program consisting of rigid inclusion elements to mitigate the effects caused by the soil liquefaction. xxx/hfpfohjoffst/dpn