2005-01-12 CC Packet - Laserfiche WebLink

Home Browse Search

CSAH 14, 1-35W to 1-35E Water Resource Meeting Minutes -3- January 5, 2005 2. Wetland ImpactslMitigation Impacts SRF Wetlands representative, Joyce Pickle, presented layouts identifying the approximately 13.5 acres of permanent wetland impact. The wetlands were delineated in September 2004. She identified that there is opportunity for wetland hydrology and conditions to return following construction (i.e. temporary impacts) in Segment 1 between the roadway and proposed trail. The following questions/clarifications were discussed: · Some permanent impacts will result to DNR protected wetlands along the lake fringe. However, wetlands associated with the lakes are narrow (not much area outside of the open water). . The trail cannot be constructed immediately adjacent to the rural roadway section for purposes of safety. Also, state and federal aid guidelines do not allow for this. . The rural roadway section through the parks should allow for better wildlife movement. Mitillation The existing roadway is bordered on both sides by wetland and as such, opportunity for wetland mitigation within this segment is minimal. Similarly, the corridor does not allow much opportunity for stormwater treatment and therefore, some treatment may occur within the wetland areas. The following questions/clarifications were discussed with regard to mitigation: . Wetland restoration is an option in the park. However, wetland restoration only provides 25% credit. This would require a substantial amount of available parkland area. . Anoka County Highway Department's preference is to use BWSR banking. . An option to combine the wetland replacement/restoration and the regional parkland replacement processes should be pursued. . SRF will separate the safety versus non-safety (roadway versus trail) improvements to better understand where BWSR banking can be used. Mitigation for trail impacts cannot be used from BWSR banking but may be bought by the County. . The character of Segment 1 (the park segment) also limits wetland mitigation and stormwater treatment due to poor soils, limited upland areas and archaeological resources. . BWSR favors maintaining wildlife habitat on the isolated uplands in the park and using BWSR baking for mitigation rather than digging out those areas for wetland mitigation andlor stormwater ponding.