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Home My WebLink About2025-04-22 - AGENDA REPORTS - VISTA CYN PROJ S3037 CONTR MODO Agenda Item: 8 CITY OF SANTA CLARITA AGENDA REPORT CONSENT CALENDAR CITY MANAGER APPROVAL: Li ' DATE: April 22, 2025 SUBJECT: VISTA CANYON ROAD BRIDGE, PROJECT S3037 - DESIGN CONTRACT MODIFICATION DEPARTMENT: Public Works PRESENTER: Shannon Pickett RECOMMENDED ACTION City Council: 1. Extend the current design contract and authorize an increased expenditure authority for bridge engineering design services with Dokken Engineering, in the amount of $200,000, for a revised total contract amount not to exceed $1,058,000. 2. Authorize the City Manager or designee to execute all contracts and associated documents, subject to City Attorney approval. BACKGROUND The Vista Canyon Road Bridge project consists of constructing a bridge and associated road improvements, connecting the Vista Canyon Multi -Modal Transit Center to Soledad Canyon Road over the Santa Clara River. The bridge is shown on the attached Location Map. This project supports the Enhancing Economic Vitality theme of the City's five-year strategic plan, Santa Clarita 2025. On February 13, 2024, the City Council authorized the City Manager to execute agreements with consultants to finalize plans and specifications for the design of the Vista Canyon Road Bridge project and associated road improvements. This action included a design contract for bridge engineering design services with Dokken Engineering (Dokken) in the amount of $506,000, including contingency. On June 25, 2024, the City Council awarded the construction contract and associated construction support contracts for the project. At this meeting, the City Council approved an extension of the design contract with Dokken to provide construction support services for the Page 1 Packet Pg. 344 O construction of the project for an additional contract amount of $352,000, including contingency. Dokken is the structural Engineer of Record for the Vista Canyon Road Bridge project. In compliance with California Department of Fish and Wildlife regulations, and to protect the fully -protected fish located in the flowing surface water near a set of bridge piers, a revision to the plans was required to avoid the water. The revisions included moving the piers out of the area of flowing water and providing revised plans, structural calculations, and details. In order to accommodate ongoing construction support services, it is recommended that the existing bridge engineering design services contract with Dokken increase by a total of $200,000. The proposal is available in the City Clerk's Reading File. The existing project budget will provide for the contract extension that will allow Dokken to continue providing construction support services at regular meetings, reviewing submittals, responding to requests for information, and addressing design issues as the project is constructed. No additional funding is being requested for this action. The requirements of the California Environmental Quality Act were satisfied when the City Council approved the Vista Canyon project's final Environmental Impact Report (EIR) (SCH No. 2007071039) at its regular meeting on April 26, 2011. The recommended actions will not result in any new environmental effect not already considered in the final EIR regarding the project. Consequently, no additional environmental review is required. ALTERNATIVE ACTION Other action as determined by the City Council. FISCAL IMPACT Adequate funds are available in project expenditure accounts S3037233-516101 (TDA Article 8), 53037261-516101 (Prop A LR), 53037264-516101 (Measure R LR), 53037266-516101 (Measure M LR), S3037268-516101 (Measure M ATP), S3037270-516101 (Measure R Hwy Op Fund), S3037432-516101 (Street Infrastructure Fees), S3037452-516101 (Eastside B&T Fees), and S3037700-516101 (Measure M - Transit) to support the recommended action and associated project costs. ATTACHMENTS Location Map Proposal for Dokken Engineering (available in the City Clerk's Reading File) Page 2 Packet Pg. 345 'WON IN -0 (-;rvof MW�r R klk% N ' 11 __:! L41WA Location Map for Feet alien Vista Canyon Bridge, 300 600 Legend _Existing Parcel Boundary by City of Santa Clarta GIS map, Street centerlines developed & maintainedi w The ANNEfFiQEDA!ST�Q� � t t� �' of Santa Clarita ►0� ' �►� ��'�► .► ® r < <w I�� SYILl�tiRU1�•r9:T .,;. � ► e. a r. �g liability for any errom or omi55jon7,. Map prepa red by: City of Santa C la rita GIS Division Q:\PROJEC--S\PW\240118aI\Vista Canyon Bridge Aft cq,��,o�1NTRi • Ad NIEL_IIHAVERS, WNW— s �ARBROOK �#.Q i0� c�� 1FJ. T •`ipF 0� py t�6� s :. RIVEPIP R.Gm LU `..;. , .fAKES`WA� Mfi'CHELL�[lR�@�' pe' a�Iri'(, U PAIJLINE zvwfE% pe'^„ �7 - - pp,{•j1ELSp�sCT � 0 � � p�.YrfHARRll41QIJ�DR� COUPLER - }u { Ilk o ZEPHYR pRNE FREE!(+LANE Packet��r �f x March 28, 2025 Ms. Jackie Lillio, PE, TE Senior Engineer Department of Public Works — Capital Improvement Projects City of Santa Clarita 23920 Valencia Boulevard Santa Clarita, CA 91355 RE: Amendment No. 2 for Professional Services — Vista Canyon Bridge Re -Design of Spans 7-9 as part of Engineering Design Support During Construction Ms. Lillio: Dokken Engineering is pleased to submit this scope and fee amendment to re -design spans 7-9 during construction of the Vista Canyon Road Bridge over the Santa Clara River in the City of Santa Clarita. This Amendment No. 2 request will append the First Amendment for Engineering Design Support During Construction task which was approved by the Santa Clarita City Council on 6/25/2024. A breakdown of proposed amended support tasks is provided below: Task 1.1: Engineering Design Support During Construction The Santa Clara River is historically dry in the summer through the middle of fall. Due to extraordinary rainfall throughout the 2023 and 2024 wet seasons, an unprecedented condition of standing water in the Santa Clara River was present at the start of construction in August 2024. Dokken Engineering will expedite the re -design spans 7-9 of the Vista Canyon Road Bridge during construction to allow the CIDH foundations to be built outside of standing water. The re -design of the Vista Canyon Road Bridge during Construction includes the following for a Lump Sum Engineering Fee of $200, 000: Preliminary Lao�pproval and Foundation Loads: Dokken Engineering will conduct on -site field visits to verify the location locations of standing water, site conditions, discuss potential crane locations with the Contractor, and take requisite field measurements. Dokken Engineering will develop revised span layout options for relocating affected pier foundations and attend virtual and in -person meetings with the City and Construction Management team to verify assumptions and gain consensus for the final proposed span configuration of the relocated pier foundations. Upon consensus with the City and Construction Management team, Dokken Engineering will revise the bridge analysis models to develop foundation loads to transmit to the Geotechnical Engineer of Record for their analysis of revised pile lengths. The Dokken team will conduct a 3rd Party Peer review of the Geotechnical Engineer of Record's final analysis and revised Bridge Foundation Memorandum and report all findings and recommendations to the City. Lump Sum Engineering Fee of $65, 000 Structural Calculations and Independent Check: Upon consensus with the City and Construction Management team, Dokken Engineering will finalize the initial bridge remodeling of the superstructure and substructure support systems and develop revised structural calculations to support the redesign of the precast concrete girders for spans 7-9, the substructures for piers 6-9, abutment 10, and the overall global seismic ductility displacement capacity check for the Vista Canyon Bridge. Dokken Engineering will prepare an organized and indexed package of the Bridge Redesign Calculations for review by the City of Santa Clarita. Dokken Engineering will meet with the City's review team and respond to any comments received on the Bridge Redesign Calculation package in a timely manner and expedite resubmittal to the City for approval. Lump Sum Engineering Fee of $100, 000 1450 Frazee Road, Suite 100, San Diego, CA 92108 ■ Tele: 858 514-8377 ■ Fax: 858 514-8608 ■ www.dokkenengineering.com X Revised Contract Change Order Bridge Plans: Upon consensus with the City and Construction Management team, Dokken Engineering will prepare Contract Change Order plan sheets for the Vista Canyon Road Bridge to reflect the revised span configuration, revised foundation data table, and accommodate changes required to the other structural components resulting from the updated Bridge Redesign Calculations. All revised details on the Contract Change Order plan sheets submitted to the City for review will be signed and stamped by the Bridge Engineer of Record and will include clouded revisions to provide clarity to the City, Construction Management team, and construction Contractor of which details and components of the bridge are affected by the reconfiguration of spans 7-9 on the Vista Canyon Road Bridge. Dokken Engineering will meet with the City's review team and respond to any comments received on the Vista Canyon Bridge Contract Change Order Plans in a timely manner and expedite resubmittal to the City for approval. Lump Sum Engineering Fee of $35, 000 The proposed amendment fee for providing the Re -Design of Spans 7-9 for the Vista Canyon Road Bridge over the Santa Clara River is $200,000, lump sum, to be paid in increments towards the successful completion of the following milestones: • Completion of Preliminary Layout Approval and Foundation Loads: $65,000 • Completion of Structural Calculations and Independent Check: $100,000 • Completion of Revised Contract Change Order Plans Bridge Plans: $35,000 Amendment No. 2 Lump Sum Total: S200,000 If you have any questions or wish to discuss this proposal in further detail, do not hesitate to give me a call at (858) 514-8377, or contact me by email at ctornacikdokkenen in�g com Sincerely, DOKKENN ENGINEERING Charles Tornaci, PE Project Manager 1450 Frazee Road, Suite 100, San Diego, CA 92108 ■ Tele: 858 514-8377 ■ Fax: 858 514-8608 ■ www.dokkenengineering.com