Project Construction Impacts a. Twenty-one (21) days prior to TDI-NE’s submission of final design plans to the PSB, TDI- NE shall submit to the Town (in electronic form and, if requested, in hard copy form) for review and approval those same plans for any work that abuts, joins or requires alteration of any town highways or trails (including work that affects drainage along, across, above or below town highways). Plans approved by the PSB and VTrans shall be deemed sufficient. If, in the Town’s judgment, other plans that have not received such approval lack sufficient detail, the Town will so inform TDI-NE, and plans satisfactory to the Town shall be provided. The Town shall have twenty-one (21) calendar days after submittal of plans satisfactory to it to approve the plans, such approval not to be unreasonably withheld, conditioned, or delayed. No construction on Xxxxxx town roads shall commence until the Town provides such approval. Failure of the Town to act within this time period shall constitute approval of such plans.
Project Construction Impacts a. Concurrent with TDI-NE’s submission of final design plans to the PSB, TDI-NE shall submit to the Town (in electronic form and, if requested, in hard copy form) for review and approval those same plans for any work that abuts, joins or requires alteration of any town highways or trails (including work that affects drainage along, across, above or below town highways). The Town shall have twenty-one (21) calendar days to approve the plans, such approval not to be unreasonably withheld, conditioned, or delayed. Failure of the Town to act within this time period shall constitute approval of such plans.
Project Construction Impacts. The construction impacts of both the Tunnel and Elevated Structure Alternatives would be similar. Differences in impacts relate to the length of construction and the extent of disruption to through traffic. Two construction plans are proposed for the Tunnel Alternative: • The intermediate plan would close SR 99 to north‐south traffic for no less than 18 months and up to 27 months (or longer). The intermediate plan assumes periods where either the northbound or southbound lanes are closed. For the stacked tunnel alignment, the overall construction duration for the intermediate plan would be 8.75 years. The side‐by‐side tunnel alignment’s approximate construction duration would be 8 years. • The shorter plan would fully close SR 99 to north‐south traffic for a minimum of 3.5 years. With the shorter plan, the majority of construction work would occur with the corridor closed, with the exception of the initial utility relocations. The duration of construction with the shorter plan would be approximately 7 years for either tunnel alignment. One construction plan is being considered for the Elevated Structure Alternative: • The longer plan for the Elevated Structure Alternative would keep two lanes on SR 99 open in each direction except when SR 99 would be closed to all traffic for 3 months. General construction impacts to parks, open space, and public access facilities along the AWV Corridor are similar for all construction plans because through traffic on the viaduct is not an essential component of access to local park and recreation resources. Construction impacts include the following: • Construction would disrupt existing and accustomed patterns of movement. Even with provisions for access across construction sites, the perceived inconvenience would lead many people to avoid the waterfront in favor of other elective park or recreational activities not subject to uncertainty and disruption. This is especially the case during reconstruction of the seawall, which would interrupt access from the east and curtail north‐south movement that is central to the waterfront experience, although access across Alaskan Way to the waterfront would be maintained at certain points. The construction of the lowered SR 99 north of the Battery Street Tunnel would substantially curtail east‐west movement across that corridor to Seattle Center. • The long construction period may affect the recovery of the waterfront as a destination for recreation and passive enjoyment, even afte...
