Agenda - Council - 04/08/2003 - Laserfiche WebLink

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I ii I I ! I I I I I I I ! I I I I I I B. Basalt Street Existing Conditions This length of unpaved Basalt Street is a total distance of 11013 and includes the segment from CR 116 south of the street terminus 300 feet ~uth of 141st avenue. Currently, the road surface is a 28-foot gravel surface and is contained within a 66-foot right-of-way. There is a general· widening of the unpaved s. urface of the roadway at the southern end of this segment of roadway, but no defined cul-de-sac. The road provides access to ten commercial lots. One' of these lots has no frontage on Basalt Street, but takes its access through a fronting p~ceL Four of these commercial lots are undeveloped (no permanent structures)', and one lot has. frontage on Basalt, but takes its access from 141st Avenue, a paved street. ~-~- At the present time there is a well developed roadside ditch system north of 141st Avenue, but is not as well developed to the south. Drainage of these ditches is from south to north terminating. in the CR 116 road ditch system. Adjacent paved streets-have rural cross sections and rely on roadside ditches, for drainage. Proposed Improvement Alternative A - Gravel Surface · Alternative A would upgrade the road by-establiShing a roadside ditch system where it is currently poorly developed on the segment south of 141St Avenue. Sufficient area exists to add a 32-foot radius cul-de-sac on the southern terminus. New culverts would need to be placed on driveways south of 141st Avenue. Because this is a commercial district, it is proposed that the surface be graveled with four inches of Class 5 to a width of 30 feet. Otherwise, the cross section would conform to Figure A in all other respects. Topsoil salvaged from the existing ditch area would be used to. restore ditches. Disturbed areas outside the roadway would be reseeded and provided with adequate erosion control until turf is reestablished. Following construction, an application of calcium chloride would be applied annually in the spring or early summer. The road would be regraded approximately monthly between April and October. After five. years, two additional inches of Class 5 ,,vould be added to the roadway. Proposed Improvement - Alternativ'e B - Paved Surfacing Similar improvements to those described in Alternative. A above would be m~ide to improve drainage and establish a small cul-de-sac: In addition to the four inches of Class 5, the roadway would be surfaced with 3 inches of Class 5 placed in two lifts. Following construction, a sealcoating would be applied alter five years. .-34~7