In addition to the standards for all zone districts provided at chapter 6 of this title, the following shall also be applicable to special uses in the city:
A. Buffering And Screening:
1. All commercial developments and public buildings shall provide an effective buffer for adjoining residences, adjoining undeveloped parcels and the river;
2. All high density residential developments shall provide an effective buffer for existing commercial or industrial uses or public buildings, adjoining residences, adjoining undeveloped parcels and the river;
3. Existing vegetation shall be retained to serve required buffering or screening functions wherever possible;
4. All buffers shall be installed in compliance with the detailed performance standards for effective buffering found in section
12-13-2, appendix B of this title.
B. Street Connections: All developments shall be designed to maximize functional connections with adjoining developments, including shared access to arterial streets, shared parking and service access, shared buffers and open space areas, and shared pedestrian circulation.
C. Runoff And Erosion Control: A professionally prepared runoff and erosion control plan shall be implemented by all developments located on land with a slope of more than eight percent (8%) or where a cumulative total of more than twenty thousand (20,000) square feet of impervious cover will be created. That plan shall:
1. Identify runoff and erosion hazard areas on the site;
2. Identify areas and facilities, both on and down stream from the site, that are vulnerable to damage from accelerated runoff or erosion;
3. Show where existing vegetation will be retained and land disturbance minimized (retention of existing vegetation in buffers wherever possible is required);
4. Show how existing trees that are to be retained will be protected from damage during construction;
5. Show how the area disturbed by construction at any one time will be minimized, and how runoff will be diverted away from areas disturbed by construction;
6. Show how disturbed areas will be stabilized during the construction period;
7. Show how disturbed areas will be promptly, permanently stabilized by revegetation and/or structural techniques;
8. Show how runoff velocities will be minimized and drainageways will be prepared to handle any acceleration or increase of runoff;
9. Show how any additional runoff generated will be retained on site and absorbed, evaporated or released from the site at a rate not exceeding the predevelopment rate of release;
10. Show how sediment resulting from accelerated soil erosion will be retained on site;
11. Show how water quality in adjoining or nearby streams and wetlands will be protected by retention of existing vegetation, installation of vegetative filter strips or other means.
D. Hazardous Substances: Any use that is, or may reasonably be, expected to involve the handling or storage of hazardous substances shall demonstrate continuing compliance with state and federal requirements for the storage and handling of hazardous substances. No such uses, other than marinas, shall be located within the river corridor.
E. Land Use Compatibility: Special uses shall be designed for compatibility with neighboring uses, with compatibility being evaluated using the following factors:
1. Lot coverage and extent of landscaping (including the effectiveness of the proposed buffers);
2. Building bulk, height and scale;
3. Effect on scenic views from adjoining properties and public spaces; and
4. Hours of operation, lighting, activity levels, as measured by traffic and noise generation, parking and storage area requirements, the number and size of signs, and similar indicators.
F. Location Of Parking Area: Parking areas accessory to commercial uses and public buildings shall be located to the side or rear of the principal building so the predominant streetscape perception of the city will be one of building facades and landscaped areas, not asphalt and automobiles.
G. Pedestrian Circulation: All land use changes shall provide safe and adequate nonmotorized travelways.
H. Snow Storage: All developments shall provide for adequate on site snow storage. Snow storage shall not be permitted to reduce the size of required off street parking or loading areas. (Ord. 146, 9-22-2016)