HomeMy WebLinkAbout026_SimkinsTract3BTrafficUpdateLetter May 13, 2024 Taylor Lonsdale, PE City of Bozeman 20 East Olive Street Bozeman, MT 59715 Reference: Simkins North Park Site Plan – Tract 3-B Trip Generation Update Project No. 21363.01 Taylor: The purpose of this letter is to provide a traffic impact study (TIS) update for the North Park Master Site in Bozeman, Montana due to the proposed change in land use on Tract 3-B, located southwest of Wheat Drive. Traffic impacts were previously analyzed via the North Park Master Site Plan Traffic Impact Study completed by Sanderson Stewart in June 2023. The updated proposed layout for Tract 3-B includes one warehousing building of 43,607 square-feet and an adjacent small mechanic shop of 9,600 square-feet, for a total building size of 53,207 square-feet. This is approximately 90% of what was assumed in the original TIS. The proposed mechanic shop would be privately operated and only service Simkins-Hallin vehicles and would remain empty or used as storage when vehicles are not being serviced. The proposed site plan for Tract 3-B is attached. Access to the proposed Tract 3-B site would be via two full-movement approaches from Wheat Drive. Externally, this road provides access to North 7th Avenue and Mandeville Lane. The June 2023 TIS evaluated trip generation for the North Park Master Site and assumed land uses included mini-storage, a hotel, multifamily housing, offices, general industrial uses, warehousing, and a Simkins-Hallin storefront with supporting uses. The original TIS assumed warehousing uses on Tract 3-B. This letter will compare trip generation rates for the proposed new Tract 3-B land uses to previous assumptions for Tract 3-B and the total site. The assumed land use from the Institute of Transportation Engineers (ITE) Trip Generation Manual for the new proposed buildings on Tract 3-B was Warehousing (Land Use Code 150). Trip generation was then calculated using the square footage of the use type as the independent variable. The results of the updated trip generation calculations are shown in Table 1 (attached). Table 1 also shows separate trip generation totals for the rest of the Simkins-Hallin site, Tract 5, and Tract 3 as they each have begun the City review process. The remaining potential future development anticipated on the North Park Master Site is shown following these three currently proposed sites.
Taylor Lonsdale, PE May 13, 2024 Page 2 In total, the entire North Park Master Site is now proposed to generate approximately 97 percent of the weekday trips that were calculated in the June 2023 study if Tract 3-B and the remaining tracts are developed as currently proposed. When comparing trip generation totals only for Tract 3-B, it was found that the new proposed land use on Tract 3-B is projected to generate 90 percent of the total weekday trips assumed in the TIS. The currently proposed sites (Tract 3, Tract 5, and Simkins-Hallin) account for approximately 55-percent of the total external weekday trips calculated in the June 2023 study. It was found in the June 2023 study that a traffic signal is projected to become warranted at the North 7th Avenue/Cultivar Street intersection approximately upon full buildout of the North Park Master Site. Therefore, at such time that active site applications for development on the remainder of the Master Site equal the original daily total number of trips, the need for this traffic signal should be reevaluated and programmed as necessary as remaining tracts applications are reviewed. If you have any questions or concerns, please feel free to contact me at 406-922-4306 or jstaszcuk@sandersonstewart.com. Sincerely, Joey Staszcuk, PE, PTOE, RSP1 Senior Engineer | Community Transportation Studio Manager ARS/jhs Enc: Site plan Trip generation table P:21349_03_North_Park_MSP_5.13.2024
IntensityUnitstotalenterexittotalenterexittotalenterexit141
1000 Sq. Ft.6703353359673231043272230.951000 Sq. Ft.3951971983930942123024.11000 Sq. Ft.3471731744033752183432.861000 Sq. Ft.560280280523220743440531000 Sq. Ft.9145469721037201000 Sq. Ft.9748491411315510241000 Sq. Ft.41220620638241454252936Trucks72363620255026441320132429021080356134222751000 Sq. Ft.109545574311561501000 Sq. Ft.257128129262062781950Dwelling Units33716916820515261610265
1000 Sq. Ft.12916456461961722417224148463823162322539411128592187405(1)Mini-Warehouse - Land Use Code 151*Units = 1000 SF GFAAverage WeekdayAverage Rate = 1.45 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 0.09 (59% entering, 41% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 0.15 (47% entering, 53% exiting)(2)Hotel - Land Use Code 310*Units = RoomsAverage WeekdayAverage Rate = 7.99 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 0.46 (56% entering, 44% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 0.59 (51% entering, 49% exiting)(3)General Light Industrial - Land Use Code 110*Units = 1000 SF GFAAverage WeekdayAverage Rate = 4.87 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 0.74 (88% entering, 12% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 0.65 (14% entering, 86% exiting)(4)General Office Building - Land Use 710*Units = 1000 SF GFAAverage Weekday:Average Rate = 10.84 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 1.52 (88% entering, 12% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 1.44 (17% entering, 83% exiting)(5)Warehousing - Land Use Code 150*Units = 1000 SF GFAAverage WeekdayAverage Rate = 1.71 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 0.17 (77% entering, 23% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 0.18 (28% entering, 72% exiting)(6)Multifamily Housing (Low-Rise) - Land Use 220*Units = 1000 SF GFAAverage Weekday:Average Rate = 6.74 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 0.40 (24% entering, 76% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 0.51 (63% entering, 37% exiting)(7)Manufacturing - Land Use Code 140*Units = 1000 SF GFAAverage WeekdayAverage Rate = 4.75 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 0.68 (76% entering, 24% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 0.74 (31% entering, 69% exiting)(8)Building Materials and Lumber Store - Land Use Code 812*Units = 1000 SF GFAAverage WeekdayAverage Rate = 17.05 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 1.59 (62% entering, 38% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 2.25 (46% entering, 54% exiting)
(9) Small Office Building - Land Use Code 712* Units = 1000 SF GFAAverage WeekdayAverage Rate = 14.39 (50% entering, 50% exiting)
Peak Hour of the Adjacent Street, One Hour between 7 and 9 AM:Average Rate = 1.67 (82% entering, 18% exiting)
Peak Hour of the Adjacent Street, One Hour between 4 and 6 PM:Average Rate = 2.16 (34% entering, 66% exiting)*Trip Generation, 11th Edition, Institute of Transportation Engineers, 2021**Trip Generation Handbook, 3rd Edition, Institute of Transportation Engineers, 2017†Truck Deliveries calculated based on information from Simkins-HallinTotal Site Gross TripsIndependent VariableAverage WeekdayWarehousing5Multifamily Housing (Low-Rise)6General Light Industrial3Tract 3-B (Simkins-Hallin)Warehousing5Mini-Warehousing1Tract 5Warehousing5Office9Showroom & Sales8Truck Deliveries†Other Future DevelopmentCurrent Proposed Gross TripsTract 1PM Peak HourLand UseAM Peak HourCurrent Application/Review in ProcessTract 3Timber Manufacturing7Tract 2-B and 4-B (Simkins-Hallin)Truss Shop7Main Store8Tract 4Tract 6
CP#1
CP#2
CP#3
CP#4
BUILDING GRIDLINE SETTING OUT POINTS
Point #
1
2
3
4
Northing
535531.33
535416.44
535454.97
535371.13
Easting
1571537.86
1571676.43
1571747.46
1571864.80
Elevation
4692.00
4692.00
4692.00
4692.00
Description
MILLWORK GRIDLINE 1/A INTERSECTION
MILLWORK GRIDLINE 1/L INTERSECTION
MECHANIC GRIDLINE 1/A INTERSECTION
MECHANIC GRIDLINE 7/F INTERSECTION
FILE:PROJECT NO:CAD:QUALITY ASSURANCE:DRAWING HISTORYDATE DESCRIPTIONa sanderson bellecci companyWHEAT DRIVEOVERALL SITE AND UTILITY PLANSIMKINS-HALLIN TRACT 3-BNORTH PARK SIMKINS-HALLIN SITE DEVELOPMENTBOZEMAN, MTC3.1 TP21363_01_OVERALL_SITE_PROD.DWGCS/KA01/31/24SITE PLAN SUBMITTAL05/22/24-----SITE PLAN SUBMITTAL-------21363.01 NORTH
0 40
SCALE: 1" = 40'
802040
GENERAL UTILITY NOTES:
1.ALL DUCTILE IRON PIPE AND FITTINGS INCLUDING HYDRANTS, VALVE BOXES, CURB BOXES, AND
ALL OTHER METAL PARTS AND SURFACES SHALL BE ENCASED WITH V-BIO® ENHANCED
POLYETHYLENE ENCASEMENT.
2.THE POLYETHYLENE ENCASEMENT SHALL BE OVERLAPPED ONE FOOT IN EACH DIRECTION AT
JOINTS AND SECURED IN PLACE AROUND THE PIPE, AND ANY WRAP AT TAP LOCATIONS SHALL BE
TAPED TIGHTLY PRIOR TO TAPPING AND INSPECTED FOR ANY NEEDED REPAIRS FOLLOWING THE
TAP.
PHILLIPS 66 PIPELINE NOTES:
1.WARNING HIGH PRESSURE PIPELINE(S). NO EXCAVATION OR CONSTRUCTION IN THIS AREA
WITHOUT ONE-CALL AND WITHOUT CONTACTING PHILLIPS 66 PIPELINE LLC (P66PL) AT (406)
587-7060.
2.CONTRACTOR TO CONTACT YELLOWSTONE PIPELINE REPRESENTATIVE AT LEAST 72 HOURS
PRIOR TO ANY WORK NEAR OR WITHIN THE EASEMENT. YELLOWSTONE PIPELINE
REPRESENTATIVE MUST BE PRESENT ON-SITE DURING ALL EXCAVATION ACTIVITIES WITHIN THE
EASEMENT
3.PROPOSED BUILDING MUST BE 50' MINIMUM FROM EXISTING YELLOWSTONE PIPELINE.
4.DURING INSTALLATION OF UNDERGROUND PIPELINES OR FACILITIES WITH DRILLING OR BORING
TECHNOLOGY, AN AUTHORIZED PERMITTOR REPRESENTATIVE SHALL HAVE THE RIGHT TO
EVALUATE AND APPROVE THE DRILLING PLAN. FOR A DRILLED CROSSING, PROVIDE AT LEAST 10
FT OF VERTICAL SEPARATION FOR CROSSINGS AND 15 FT FOR PARALLEL BORES BETWEEN NEW
AND BORE AND EXISTING PIPELINES. IN ADDITION, PHILLIPS 66 MAY REQUIRE PERMITTEE TO
EXCAVATE AN OBSERVATION HOLE PARALLEL TO AND APPROXIMATELY 5FT ON ONE OR BOTH
SIDES OF PERMITTOR'S PIPELINE(S) EXTENDING AT LEAST 1 FT BELOW THE PIPELINE OR BORE,
WHICHEVER IS SHALLOWEST. THE OBSERVATION HOLES(S) ARE TO BE MONITORED DURING
BOTH THE PILOT BORE AND BACK REAMING.
5.PERMITTEE WILL REMOVE CUTTING TEETH FROM EXCAVATION EQUIPMENT BUCKET WHEN
WITHIN 10 FEET OF PERMITTOR'S PIPELINE(S). MECHANICAL EXCAVATION WILL CEASE, AND
ONLY HAND EXCAVATION SHALL BE PERMITTED, WITHIN 18 INCHES OF A CRUDE OIL OR
PRODUCT PIPELINE AND WITHIN 24 INCHES OF A LINE CONTAINING HIGHLY VOLATILE LIQUIDS
(HVL). EXCAVATION WILL NOT BE ALLOWED TO CONTINUE UNTIL THE PERMITTOR'S PIPELINE,
VALVES, AND/OR FITTINGS TOP AND SIDES ARE VISIBLE TO THE SPOTTER. HOWEVER, PROCEED
WITH EXTREME CAUTION WHEN WITHIN THREE (3) FEET OF THE PIPE.P:\21363_01_Simkins_North_Park_Site_Plan\CADD_C3D\PRODUCTION_DWG\TRACT 3-B\21363_01_OVERALL_SITE_PROD.dwg, C3.1, 5/14/2024 1:45:04 PM, cschreiner, 1:1