07/15/2004 Env Bd Packet - Laserfiche WebLink

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• • • minimize impact to areas susceptible to erosion. These measures will include the use of silt fences, temporary sediment basins, cut off swales, rock construction entrances, cleaning of adjacent streets as needed, rip rap at storm outfalls, silt fence around storm inlets during construction, and timely revegetation of all disturbed areas. The site will be monitored by the Rice Creek Watershed District and the City engineer for erosion and defective erosion control measures. The close proximity of proposed stormwater ponds to a waterbody always raises the question about groundwater and a pond's real capacity. If the normal groundwater level causes water to partially fill a pond, it may not have adequate capacity if this is not accounted for in its design. The proposed ponds on the island must comply with current standards and function as designed. This is a normal element of project review by both the City and the Rice Creek Watershed District. A condition regarding no disturbing wetlands beyond 100 feet from the back of their homes can be included in the project requirements and recorded against all properties as a platting requirement. This was part of the developer's discussions with the DNR regarding the bridge permit. Regarding the location of the bridge, the lake (and bordering wetlands) spans approximately 500 feet to the west and to the south to the nearest high ground. A bridge from either of these directions would require additional piers and corresponding fill and construction dewatering. Visual Impacts Any new development will alter the appearance of an area. In addition to the new houses, the proposed bridge will change the visual appearance of the area for several residents of the existing Quail Ridge development. A 300 ft. bridge is not a common aspect of new development, and those residents might consider the bridge an adverse visual impact. A view of undeveloped wetland and woods may well be considered scenic, though the views of wetlands and woods in the project area are not unique in Lino Lakes or surrounding communities. The more recent proposal, which returns to an original five -span, flat bridge design, reduces the visual impact considerably. The City can require the use of wooden railings, which will fit into the wooded environment. The two -span truss bridge would be a greater visual impact because of the tall trusses. There will be a visual impact, and it will be permanent. However, the extent of the impact will be similar to the type and extent of changes that occur when new roads are constructed and homes are built in previously undeveloped areas. Historic and Archaeological Resources A background review of records, literature and archaeological research relevant to the history and prehistory of the area was carried out. No previously recorded archaeological or historical /architectural properties have been recorded in the area. A Phase I archaeological survey was carried out in November of 2000. No historic or prehistoric remains were found in DRAFT July 1, 2004' Pheasant Hills Preserve 12th Addn. EAW Record of Decision page 5