Ord 1423 (2) - Laserfiche WebLink

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miles and added impervious area will increase the flow rate to receiving waters by more than 0.5 cfs during the detention design storm.The project proposes to include 7 onsite biofiltration swales, bioslopes sufficient to treat 8.74 acres of impervious surface, and one offsite biofiltration swale to be located on 1-5 near the Broadacres Road overpass. In total, the project will provide stormwater treatment for 33.1 acres of impervious surface, none of which is currently treated.The project also proposes to construct a total of 6 detention ponds. (See Appendix 0 Categorical Exclusion Closeout Document.) Impacts to land resources, in particular EFU land, were evaluated as part of the TAMP existing conditions analysis (TAMP Chapter 2) and were a consideration during the alternative evaluation process (TAMP Chapter 4). Goal 6 has been met. STATEWIDE PLANNING GOAL 7: To protect people and property from natural hazards. This Goal is not directly applicable, as there are no identified hazards related to landslides or floodplains in the vicinity of the interchange. Improvements at the interchange will improve transportation safety and mobility, which will be beneficial for evacuation purposes in the event of wildfire or earthquake. STATEWIDE PLANNING GOAL 8: To satisfy the recreational needs of the citizens of the state and visitors, and, where appropriate, to provide for the siting of necessary recreational facilities including destination resorts. There are no publicly owned parks or other recreation resources, including trails and wildlife refuges, in the vicinity of the TAMP or within one mile of the TAMP study area. The interchange is one of many ways to access Champoeg State Park, approximately 4 miles to the west of 1-5, but interchange improvements will not affect the park directly. Additionally, within or near the study area there are no planned parks or recreation projects identified in the 2010 Marion County Parks Master Plan. (See TAMP Appendix G Parks and Recreation Existing Conditions Technical Memorandum.) Goal 8 has been met. STATEWIDE PLANNING GOAL 9: To provide adequate opportunities throughout the state for a variety of economic activities vital to the health, welfare, and prosperity of Oregon's citizens. The existing congestion and safety concerns at the interchange negatively impact the mobility of freight, agricultural goods, and passenger vehicles in the region. Businesses in the immediate area, including two truck stops, are directly impacted by the traffic volumes on the southbound 1-5 off-ramp, the proximity Ehlen Road and Bents Road intersections, and the uphill grades on the on-ramps. Issues at the interchange cause traffic back-ups on the high-speed freeway mainline, presenting a safety hazard for all users and impeding the movement of freight. Proposed improvements associated with the TAMP Preferred Alternative will address the identified congestion and safety concerns, to the benefit of local businesses and goods movement. Goal 9 has been met. 1-5:Aurora Donald Interchange(Exit 278)TAMP:Supporting Findings for Marion County Adoption 9