Extensive rock cuts, steep slopes, traffic, parking adequacy and wildlife impact were among the issues raised during a Feb. 27 hearing on a proposed 36-unit condominium on upper River Road.\u201cI think there\u2019s a lot more questions that need to be answered,\u201d Planning and Zoning Commission member Tony Pogoda said.The city engineer\u2019s office pointed to \u201cserious concerns regarding the slope\u201d behind some residential buildings from a planned \u201copen rock cut,\u201d suggesting a barrier is needed \u201cto protect all properties below.\u201dCity zoning consultant Tony Panico said loose rock potentially could fall 40 or 50 feet from a ledge and land near some proposed buildings.\u201cThere\u2019s a lot of unknowns with that rock,\u201d said commission member Mark Widomski, asking for more details on what he called a \u201ccliff\u201d to be created from a proposed rock cut.Members requested that a traffic report be completed to gauge the potential impact on River Road (Route 110). Key Development LLC wants to construct nine residential buildings on 12.4 acres at 85-97 River Road, across from the Baingan Indian restaurant. Three parcels would be combined to make up the development site, which slopes down toward the road with a major elevation change.The developer is seeking a special exception to allow a multi-family development on the property, which is zoned Residence-3 for quarter-acre lots.The project would have 24 two-bedroom townhouse units and 12 three-bedroom ranch units, with buildings up to three stories high. Each unit would have a deck or patio.Developer architect Pat Rose said while the site includes extensive exposed rock, the proposal would leave a \u201csignificant amount of open space to the rear of this property.\u201dRose said the plan involved fewer bedrooms at 84 than a previous concept involving 30 single-family homes with 120 bedrooms. The old concept, which never was part of a formal application, would \u201cdisturb the site much more,\u201d he said.A group of neighbors expressed concerns about the proposal. Diana Barry said many fatal accidents have taken place in recent years on River Road, which she described as being \u201cvery dangerous.\u201dBarry pointed to potential overcrowding at nearby Sunnyside School from having so many new residences nearby.Other neighbors worried about extensive tree cutting, how wildlife would be affected, the development\u2019s visibility from their homes and the impact of blasting on their foundations.Also discussed were \u201ccramped\u201d outdoor spaces for units, whether a mail pickup location just off River Road would be dangerous, proposed tandem garage parking spaces in the townhouses and a possible need for more visitor parking throughout the site.The site has 400 feet of frontage on River Road and would be accessed off one driveway at the northern part of the property. All units would be at least 50 feet from River Road.Much of the property, in the rear and southern part, would be undeveloped due to wetlands and grade changes. Nearby homes are on River Road in the front and Jenyfer Court and Richard Boulevard in the rear.The developer also is seeking wetlands and sewer authority. The P&Z hearing was kept open for the developer to present more information on rock cuts, traffic, parking and other issues.