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06-096.00 CH2M Hill: Valley Corridor Environmental StudiesTransportation Improvement Board ;)Consultant Supplemental Agreement Agency City,of Spokane Valley Project Number #05 -002 Project Name City of'Spokane Valley Corridor Project— Environmental Studies consulUng Fum CH2M HILL, Inc.ucon_firm» suppiernent Phase Environmental Studies The Local Agency of City of Spokane Valley desires to .supplement the agreement entered into with acon firmo and executed on June 29, 2005_ All provisions. in the basic agreement remain in effect except as expressly modified by this supplement. The changes to the agreement are described as follows: Section 11, SCOPE OF WORK, is hereby amended to include This additional scope is to support'the work currently being done on the 5prague/Appleway Corridor Sufi Area Plan. Task 1: Drawings of the.alternatives described in Task 2 will be prepared to help describe the new alternatives suggested by the Sub Area Planning project. Based on these new alternatives, PTV will rerun the model (same one that was used before, 2025 with 2030 extrapolated) and will look at channelization and travel trips. It is assumed that PTV will provide- modeling information to CH2M HILL,.Inc. by August 25, 2006. Task 2: Revise-the VISUM base and forecast models and the base and forecast Synchro models for the following two alternatives: Alter - native A: • 3 -lane Appleway, 2 -way from Mullan /Argonne Road east to Tshirley (Appleway west of Mullon/Argonne would remain one -way) • 7 -lane Sprague, 2 -way from Mullan /Argonne Road east to Tshirley (Sprague west of Mullon/Argonne would remain one -way) Alternative B: • 3 -1ane Appleway, 2 -way from Mullan/Argonne Road east to Tshirley (Appleway west of Mullan /Argonne would remain one -way) • 5 -lane Sprague, 2 -way from Mullan/Argonne Road east to Tshirley (Sprague west of Mullan/A�gonne would remain one -way) Provide a brief technical memo summarizing the results. This task to be completed by the second week of September so results can be reviewed by the Subarea Plan consultant and presented at the community workshop currently scheduled for September 1P. Task 3: Revise the VISUM base and' forecast models and the base and forecast Synchro models for two additional alternatives that involve Sprague.Avenue and Appleway Avenue being two-Way from the I -90 Sprague interchange to Tshirley. Details of the transition at the west end of this alternative will be developed and provided at a later date. Provide a brief technical memo summarizing the results. Level of effort for this task is assumed to be similar to Task L coNSuLTAKr SWW MENTAL AGREEEB MOOc cdG - 96 Transportation improvement Board .VI)Consultant Supplemental Agreement Task 4: Revise the VISUM base and forecast models and the. base and forecast Synchro models for selected f final alternative. Configuration for this alternative will be determined based on results..of tasks i & 2, public input, and Subarea Plan Consultant recommendations. Provide a brief technical memo summarizing the results. Level of effort for this flask is assumed to be less than the level of effort for Task .1. Task 5: Participate. in two Community Workshops (September and October) and five coordination meetings with Subarea Plan Team. The Community Workshops would be attended by the Project Manager; the coordination meetings would be attended by the Pr ©Jett Manager and the Transportation Engineer: Assume three hours for each Community Workshop and two hours for each coordination meeting. Task 6: Conduct project management including coordination of staff, preparing project status reports, and communication/coordinating with the City of Spokane Valley. Section IV, TIME FOR BEGINNING AND COMPLETION, is amended to change the Completion Date SUPPLEMENTAL COMPLETION DATE November 30, 2006 Section V, PAYMENT, shall be amended as follows as set forth in Exhibit A EXHIBIT A MAXIMUM AMOUNT PAYABLE . $206,375.50 DOCUMENTS EXEMPT FROM PUBLIC DISCLOSURE The table entitled "Exhibit A" contains confidential cost and rate data and is redacted from public disclosure pursuant to 23 USC 112(2)(F). Prenotification; confidentiality of data. A recipient of funds requesting or using the cost and rate data shall notify any affected firm before such request or use. Such data shall be confidential and shall not be accessible or provided, in whole or in part, to another firm or to any government agency which is not part of the group of agencies sharing cost data under this paragraph, except by written permission of the audited firm. If prohibited by law, such cost and rate data shall not be disclosed under any circumstances. You may petition for a review of our findings pertaining to any redacted or withheld documents pursuant to Spokane Valley Municipal Code (SVMC) 2.75.080; and obtain judicial review pursuant to RCW 42.56.550. If you concur with this supplement and agree to the changes as stated above, please sign and date in. the appropriate spaces below. Agency Signature Date IA Consultant Signature Date AJ—:a ;:�- 8 - .7 -1 CONSULTWSUPINDA TALAGREEEMENT.DOC