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HomeMy WebLinkAboutRS_TIA_Addendum_210923_v1.pdf TENW Transportation Engineering NorthWest Transportation Planning | Design | Traffic Impact & Operations 11400 SE 8th Street, Suite 200, Bellevue, WA 98004 | Office (425) 889-6747 MEMORANDUM DATE:July 2, 2021 TO:Michael Sippo City of Renton FROM:Spenser Haynie TENW SUBJECT:Transportation Impact Analysis (TIA) Addendum Chick-fil-A Renton TENW Project No. 2021-114 This Transportation Impact Analysis (TIA) Addendum has been prepared for the proposed expansion of the existing Chick-fil-A restaurant site in Renton, WA. This is an addendum to the previously approved TIA (dated February 1, 2019) and provides updated information based on a proposed modification to the site to include an expansion of the drive-through lanes and parking area. Project Background The existing Chick-fil-A Renton site is located on the northwest corner of the intersection of Rainier Ave S and S 3rd Place at 375 Rainier Ave S. Traffic impacts associated with the Chick-fil-A Renton project were documented in a 2019 TIA conducted by TENW. The Chick-fil-A Renton project opened on March 25, 2021 with vehicular access consistent with what was analyzed in the TIA and is described as follows: 1) via the S 3rd Place shared access west of the Rainier Avenue S signalized intersection (S 3rd Place is a shared access road with Fred Meyer and other commercial uses) 2) via a right-in/right-out driveway on Rainier Ave S located approximately 175 feet north of the signalized intersection with S 3rd Place. Project Description Chick-fil-A Renton has acquired the adjacent parcel to the north (Firestone) and proposes to improve the existing site by utilizing an alternate driveway access on Rainier Ave S, expanding the on-site drive-thru to include two (2) full lanes, and providing additional on-site parking stalls. The existing Firestone tire store would be removed with the project, but no changes to the Chick-fil-A building area are proposed as part of the expansion. An updated site plan illustrating the proposed Chick-fil-A expansion is included in Attachment A. The key improvements associated with the proposed expansion are discussed in greater detail below. Proposed Driveway Access Modification on Rainier Ave S With the proposed expansion, the existing Chick-fil-A right-in/right-out driveway on Rainier Ave S would be closed and the existing right-in/right-out driveway for the Firestone tire store (located approximately 235 feet north of the signalized intersection of Rainier Ave S with S 3rd Place) would become the new Chick-fil-A right- in/right-out access driveway on Rainier Ave S. The proposed removal of one existing driveway curb cut on Rainer Ave S would result in an improved condition when compared to existing conditions by consolidating the number of driveways on Rainier Ave S between SW Sunset Blvd and S 3rd Place. Access to the existing Transportation Impact Analysis (TIA) Addendum Chick-fil-A Renton TENW July 2, 2021 Page 2 O’Reilly Auto Parts store located to the north of the site would also be maintained internally as part of the proposed Chick-fil-A expansion. No changes to the existing Chick-fil-A access via the S 3rd Place shared access are proposed with the expansion. Proposed Expansion of Drive-Thru Lanes The Chick-fil-A Renton drive-thru is proposed to be expanded to provide two (2) lanes for drive-thru queueing and will accommodate a total of 29 vehicles without spillover occurring in the parking lot drive aisles. The existing Chick-fil-A drive-thru allows for approximately 15 vehicles to queue without spillover occurring within the parking lot, so the proposed drive-thru lane improvements would accommodate an additional 14 vehicles when compared to existing conditions. A figure showing the updated drive-thru queue storage with the proposed expansion is included in Attachment B. As documented in the 2019 TIA, during Normalized Conditions, queues at the drive-thru were expected to be about 15 vehicles during the lunch peak based on 75 arriving vehicles in the drive-thru. The proposed expansion of the Chick-fil-A drive-thru lane (29 vehicle queue storage) is expected to accommodate the peak drive-thru demand during Normalized Conditions (15 vehicles) with no spillover into the parking drive aisles, and no impacts to neighboring businesses or City streets. Proposed Expansion of Parking Lot The proposed Chick-fil-A Renton expansion will result in 15 additional parking spaces, for a total on-site parking supply of 57 stalls (42 existing stalls + 15 new stalls = 57 total stalls). The additional on-site parking stalls are anticipated to accommodate peak parking demand, with no impacts to neighboring businesses. Impacts to Rainier Ave S/SW Sunset Blvd With the proposed Chick-fil-A expansion, the existing Chick-fil-A driveway on Rainier Ave S would be closed and vehicular access to the site from Rainier Ave S would be provided via the existing driveway that currently provides access to the Firestone tire store that will be demolished with the proposed project. The new Chick-fil- A access driveway on Rainier Ave S is located approximately 80 feet north of the existing Chick-fil-A driveway that will be removed with the project and 155 feet south of the signalized intersection of Rainier Ave S/SW Sunset Blvd. This new proposed location would be located at a more central location on Rainier Ave S between SW Sunset Blvd and S 3rd Place. The Chick-fil-A Renton site was designed to accommodate all peak drive-through and parking demand on- site with no spillover or impacts to neighboring businesses or City streets. The Chick-fil-A Renton expansion project will increase the vehicle queue storage in the drive-thru lanes to accommodate seven (7) additional vehicles site and will also add 15 new on-site parking stalls. The additional on-site vehicle queue storage and parking stalls will further ensure that all peak drive-thru and parking demand will be accommodated on- site with no impacts to neighboring businesses or Rainier Ave S. Construction Phasing The existing Chick-fil-A would remain open and operational during construction of the proposed expansion. Parking, circulation, and drive-thru operations are not anticipated to be affected by the proposed expansion and the drive-thru is intended to be open and operational throughout construction. Driveway access via Rainier Ave S would also be maintained during all phases of construction. Chick-fil-A will have clear signage and striping to keep the traffic flowing throughout the site during the construction period. A preliminary construction phasing plan has been developed by Chick-fil-A (see Attachment C) and includes the following: Transportation Impact Analysis (TIA) Addendum Chick-fil-A Renton TENW July 2, 2021 Page 3 Phase 1: Demo existing Firestone building, existing trash enclosure, drive-thru canopy, and curbs. Phase 2: Construct new trash enclosure. Phase 3: Construct drive-thru expansion including curbs and pavement. Phase 4: Install new drive-thru canopy, construct new parking area, complete interior landscaping. Chick-fil-A will work with City of Renton staff to ensure the on-site operations during the construction period do not adversely impact City streets. Next Steps Based on discussions with City staff, please confirm that no additional analysis will be required for the proposed Chick-fil-A Renton site expansion. If you have any questions regarding the information presented in this memo, please call me at (206) 390- 7253 or email me at spenser@tenw.com. cc: Matthew Herrera, City of Renton Stef Escamilla, 4G Development and Consulting Jeff Schramm, TENW Attachments: A. Preliminary Site Plan B. Drive-Thru Queue Storage with Expansion C. Preliminary Construction Phasing Plan Transportation Impact Analysis (TIA) Addendum Chick-fil-A Renton ATTACHMENT A Preliminary Site Plan Transportation Impact Analysis (TIA) Addendum Chick-fil-A Renton ATTACHMENT B Drive-Thru Queue Storage with Expansion Transportation Impact Analysis (TIA) Addendum Chick-fil-A Renton ATTACHMENT C Preliminary Construction Phasing Plan