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HomeMy WebLinkAbout016.01 - Appendix P.2 - Administrative Waiver-service length 1105 REEVES RD. WEST, SUITE 6 BOZEMAN, MT 59718 406-581-5730 www.headwatersmt.net Page 1 of 2 April 7, 2026 City of Bozeman Engineering Department Re: Diamond 8 Ballpark – Administrative Waiver Request Water service exceeding 150’ of length The lot size and required layout for centralized facilities within the ballpark require a water service to exceed the maximum length of 150’ for the future north & south facility buildings. We are proposing a water main extension into the center access aisle to provide a hydrant and to reduce the water service lengths, but the demand for the north and south buildings do not warrant a longer water main extension. Therefore, we are requesting an administrative waiver. Section 1.9.1 of the Design and Construction standards require submittal online, but ProjectDox does not have an Administrative Waiver application type. Review Criteria Section 1.9.2 A. The deviation from standards is not in conflict with applicable state and federal codes and requirements. The proposed 275’ & 325’ water service lengths do not conflict with the Uniform Plumbing Code or any other known State or Federal codes. B. The deviation from standards will not harm, or will be beneficial to, the public in general. The longer water service will have no effect on the general public. C. The deviation from standards is consistent with the general purpose of standards to protect public health and safety and promote operational efficiency while minimizing life-cycle costs of public infrastructure. Let me know if you need anything additional for this request. The proposed longer water service does not affect public health and safety and does not increase public costs since the water service installation and maintenance will be the responsibility of the lot owner. The instantaneous water demand for the north facility building as calculated using the Uniform Plumbing Code is 36 gpm for the north & south buildings. Results from the WaterCAD model for the service are included below and show that the pressure at the end of the 1.5” water services are 85-90 psi at 36 gpm. The system data is from the February 10th, 2026 Fire Flow Report from the City of Bozeman. Figure 1 – Pipe Report (P-129 – North building, P-63 – South building) Page 2 of 2 Figure 2 - Junction Report (J-60 – south building, J-115 – north building) An exhibit is attached which shows the pipes and junctions for the WaterCAD model. With the above information, we are confident that the proposed 1.5” water service length of 275’ & 325’ will adequately service the proposed facility buildings and meet all City of Bozeman, State and Federal codes and therefore request an administrative waiver to allow approval of the site plan. Let me know if any additional information is needed for this request. Sincerely, ________________ Jeremy May, P.E. Headwaters Engineering, Inc. www.headwatersmt.net H:\2128\002\DOCS\SITEPLAN\SITEPLAN 1\Administrative Waiver-service length.docx 8W8W8W8W8W8W8W8W 8W 8W 8W 8W 8W 8W 8W 8W WSWSWSWSWSWSWS WSWS8 SS8 SS8 SS8 SS8 SS8 SS8 SSP-125P-126H-19 H-20 H-21 H-22 H-23 H-24 H-25 H-26 H-27 H-28H-30 H-31 H-32 H-33 H-34 R-1 R-2 PMP-1 PMP-2 J-7 J-9 J-10 J-12 J-14 J-16 J-19 J-20 J-22 J-23 J-25 J-27J-28 J-30 J-32 J-34 J-36 J-37 J-41 J-43 J-44 J-45 J-46 J-47J-48 J-50J-51 J-56J-58 J-60 J-65 J-67 J-79 J-81 J-89 J-92 J-94 3126 J-99 J-4J-3 J-84 P-9P-19P-22 P-27 P-36P-43P-44P-45P-46P-47P-50 P-53 P-63P-64(1)(1) P-68 P-69P-70P-71P-73 P-74P-76P-77 P-78 P-79 P-80P-81P-87P-93 P-94 P-95 P-96 P-101 P-102 P-103 P-104P-105P-106 P-107P-108P-110P-111P-112P-113P-114P-115P-116 P-117 P-118 P-119P-120P-121P-122 P-82 P-128 P-83P-109 P-85 P-84P-3P-97 H-29P-75J-115 P-129 N GRAPHIC SCALE 1 inch = ft. 0 ( IN FEET ) 72.5125 125 125 11"X17": 1"= 250 ft HEADWATERS PROJECT NUMBER DRAWING NUMBER DRAWN BY: DATE: 2026 VERIFY SCALE THESE PRINTS MAY BE REDUCED. LINE BELOW MEASURES ONE INCH ON ORIGINAL DRAWING. MODIFY SCALE ACCORDINGLYPlot Date: 4/7/2026 2:57 PM H:\2128\002\ACAD\SHEETS\EXHIBITS\WATERCAD EXPORT.dwg © HEADWATERS ENGINEERING, INC. REVISION DATE: 1105 REEVES RD WEST, SUITE 6, BOZEMAN, MT 59718 HEADWATERSMT.NET 406-581-5730 PROJECT LOCATION MONTANA BOZEMAN 3/11/2026 JTG WATERCAD MODEL LAYOUT MASTER SITE PLAN DIAMOND 8 BASEBALL COMPLEX 2128.002 EXHLAUREL PARKWAYOAK STREET ROSA WAYTOUCHSTON E D R I V E HARVEST PARKWAY BAXTER LANE