Calveras County supervisors approved a 3,250-acre residential and golf course resort project near the lower foothills community of Copperopolis in mid-December. The following day, the Tuolumne County Board of Supervisors voted to sue its northern neighbor because of traffic concerns about the project. Oak Canyon Ranch is the largest project approved by Calaveras County is many years, said Interim Planning Director Robert Sellman. The specific plan calls for 2,275 single-family houses, and another 1,200 housing units, up to 400 of which may be for permanent residents. The other 800-plus units are designated for visitor housing, such as hotel rooms or time-share condominiums. The project also calls for 300,000 square feet of resort and commercial development, and a golf course. The primary access to the development would be on Calaveras County roads off of Highway 4. However, the Oak Canyon Ranch EIR found that the project would nearly triple traffic to more than 13,000 trips per day on O'Byrnes Ferry Road, which crosses the Tuolumne County line before intersecting Highways 108 and 120. That intersection, which features only a stop sign on O'Byrnes Ferry Road and a short left-hand turn lane on the highway, is the most dangerous in the county, said Tuolumne County Community Development Director Bev Shane. Tuolumne County's lawsuit will seek a mutually acceptable plan for improving the roads, she said. Calaveras County approved Oak Canyon Ranch without requiring improvements to O'Byrnes Ferry Road or the intersection. In fact, supervisors adopted a finding of overriding considerations. Caltrans officials also raised concerns about the project. Sellman said his county is willing to work with Caltrans but he contended that the county could not require developers to improve roads in another jurisdiction. On the day after approving the Oak Canyon Ranch project, Calaveras County supervisors voted 3-2 against implementing the county's first road mitigation fee program. The proposed fees were $3,347 per single-family house and $2,418 per multi-family unit. Two supervisors opposed the fees outright because of fears that the fees would slow development, and one supervisor voted no because commercial projects would have been exempt.