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HomeMy WebLinkAboutDocumentation of Compliance Element SummaryDocumentation of Compliance Summary of Environmental Elements This document is being provided per correspondence with Susana Montana. Purpose is to summarize each category. 10.06.22 1. Surface Water The subdivision borders East Catron Creek which flows on the East side of the Development. This area does not have a FEMA delineation floodplain. The necessary wetland permits have already been approved. East Catron Creek runs North-South through the eastern portion of the Site. All a required permitting was done prior to construction, which has been complete. The subdivision will not further affect East Catron Creek. There is a required 50-foot wetland setback from the edge of the wetlands surrounding East Catron Creek. All construction remained outside of the setback. Construction through East Catron Creek previously took place. The creek was restored back to adequate and previous conditions. East Catron Creek is delineated on the preliminary plat. 2. Floodplains Waiver was previously granted in the preapplication submittal for this element. 3. Groundwater Investigation of groundwater conditions at the site began in May of 2019 and went through June of 2020. Included in the application submittal was the groundwater depth summary logs. This subdivision will avoid groundwater degradation through the utilization of City sewer and water mains as well as stormwater control measures in accordance with the City of Bozeman design standards. The groundwater recharge areas (opens space and stormwater retention ponds) will avoid being degraded through maintenance provided by the Home Owner’s Association or property owners. Only one groundwater exemption of 10 acre-feet is allowed. The Montana DNRC Water Resources Division was contacted regarding this project and their feedback was provided in the application. 4. Geology, Soils and Slopes Waiver was previously granted in the preapplication submittal for this element. 5. Vegetation Waiver was previously granted in the preapplication submittal for this element. 6. Wildlife Waiver was previously granted in the preapplication submittal for this element. 7. Agriculture Waiver was previously granted in the preapplication submittal for this element. 8. Agricultural Water User Facilities Waiver was previously granted in the preapplication submittal for this element. 9. Water and Sewer The City of Bozeman approved the infrastructure plans for water and sewer and provided a letter indicating that adequate capacity exists within the City system to serve the proposed subdivision. The water and sewer infrastructure were completed in 2020 per the approved infrastructure plans. New water and sewer infrastructure is already installed on the site to serve the future development’s residents. As-built drawings were submitted to the City and approved. The sewer main was connected to the existing City of Bozeman system on South 19th Avenue. The water main was connected to the existing City of Bozeman system at the existing stub of Lantern drive and provided future connection at the intersection of Lantern Drive and South 21st Avenue. Water and sewer design reports were included in the submittal. Cash-in-lieu of water rights are proposed to be paid prior to final plat. 10. Stormwater Management The City of Bozeman approved the infrastructure plans for stormwater, and the stormwater infrastructure was installed in 2020. The previously submitted and approved stormwater report was included in the submittal. 11. Streets, Roads, Alleys Streets – LOS Attached at the end of this document is the Traffic Engineer’s summary to the LOS requested. Parking Conditions Each lot will have adequate parking required. The Nexus Point Site Plan for phase one has already been approved and constructed to accommodate the number of future residences. Phase two and Phase three will all include parking that meets the City of Bozeman municipal code. On-street parking is also an option on the local roads of Arnold, South 21st Avenue and Lantern. Walkability, Transit and Bike ability The City of Bozeman requires street frontage sidewalk to be installed with that respective phase. Sidewalks have been installed along the West side South 19th, the North side of Arnold Street and the East side of South 21st Avenue. This gives residents and pedestrians easy access for biking and walking. The Nexus Point Park was previously completed and also provides additional walkways for the public. An 8’ wide concrete trail also runs along the West end of the development traveling North and South connecting Lantern and Arnold. The roadway is of adequate right of way distances for the standard local roads providing Previous information from the Nexus Point Preliminary Plat Submittal. The City of Bozeman has approved the infrastructure plans for streets, roads, and alleys. Roadway easements were dedicated with the Site Plan application and the roadways were constructed in 2020. An extension of existing Lantern Drive ties into proposed South 21st Avenue. South 21st Avenue connects to proposed Arnold Street. Arnold street connects existing Discovery Drive to Existing South 19th Avenue. The local public roadway extensions maintained a 60’ ROW and were installed per City of Bozeman and MDEQ roadway standards. Upon acceptance of Lantern Drive, South 21st Avenue, and Arnold Street these roads will be maintained by the City of Bozeman. Included in the submittal was the roadway sheets from the approved infrastructure improvements set. All construction activities in the area were required to have adequate dust control and erosion control practices in place during construction. All interior roadways were constructed by the developer and maintained through construction. A traffic impact study was performed by Marvin & Associates for Nexus Point and Graf Street Subdivision and was included in the submittal. The subdivision has several different pedestrian pathways including a 10’ wide public concrete sidewalk running North-South located on the West end of the site. An 8’ wide gravel trail running North-South located on East end of the site connecting to Lantern Park and existing sidewalk located along South 19th Avenue. No individual lots or tracts have access directly to arterial streets or roads. Discovery Drive was modified for the intersection of proposed Arnold Street on the west end of the site. Arnold street intersects with the widening of South 19th Avenue on the east end of the site. Lantern Drive was extended to intersect with the proposed South 21st Avenue. There are no proposed alleys located within the subdivision. Adequate dust control and erosion control practices were maintained during construction. The public roads South 21st Avenue, Arnold Street, and the Lantern Drive extension are dedicated to the City and will be maintained by the City. Interior drive lanes beyond the right of way will be maintained by the homeowner’s association or their respective owners. 12. Non-Municipal Utilities Norwest Energy has already installed utilities for the current buildings and stubs for future buildings. Responses from NWE were included in the submittal. 13. Land Use Waiver was previously granted in the preapplication submittal for this element. 14. Parks and Recreation Facilities The necessary park and recreation facilities information was submitted, reviewed, and approved with the Nexus Point Site Plan application. Park plans previously submitted and approved are included in this submittal. The site is currently under construction. Park plans previously submitted and approved were included in the submittal The site is currently under construction. Infrastructure improvements were installed at one time. Buildings are to be phased based on current market and available funding. 15. Neighborhood Center Plan No neighborhood center plan proposed. Previously approved park plan is under construction. 16. Lighting Plan Waiver was previously granted in the preapplication submittal for this element. 17. Miscellaneous Health and Safety Historical Features Waiver was previously granted in the preapplication submittal. 18. Affordable Housing Waiver was previously granted in the preapplication submittal. MARVIN & ASSOCIATES 1300 N. Transtech Way Billings, MT 59102 Mailing Address: P.O. Box 80785 Billings, MT 59108-0785 Phone: 406-655-4550 FAX: 406-655-4991 Email: bobm@marvinassociates.com Erik Ringsak, EI Madison Engineering, LLC 895 Technology Blvd, Suite 203 Bozeman, MT 59718 October 13, 2022 Re: Nexus/Graf Apartments Capacity Analysis The following narratives constitute our response to address City of Bozeman’s request to provide a summary of levels-of-service (LOS) values at three individual intersections that were addressed in the Traffic Impact Study (TIS) dated December 3, 2019. Capacity analysis was completed for three time periods: existing conditions, existing plus site traffic conditions, and future conditions. A complete summary of the capacity measures of efficiency can be found in Tables 1, 3, and 4 of the TIS report. The table below reports the LOS for the three intersections of concern. It can be seen that the overall LOS for each intersection would operate at LOS “C” or better in each condition. The eastbound approach on Arnold Street would operate at LOS “F” for future traffic projections, but the overall operation of traffic on S 19th Avenue would operate with free-flow movements. Since the Highway Capacity Manual does not have an accepted method to calculate overall LOS for two-way stop intersections, the overall LOS at this intersection can only be speculated to be LOS “B” based on the fact that the vast majority of traffic entering the intersection has no delay. If additional information is desired, feel free to contact me. Robert R. Marvin, P.E., P.T.O.E. Intersections AM PM AM PM AM PM Stucky Road & S 19th AvenueBCCBCC Arnold Street & S 19th Avenue na na B* C* F* F* Graf Street & S 19th Avenue B B B B C B * Denotes Eastbound Operations Overall LOS = B Levels of Service Existing Existing+Site Future