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<br />Project P -ST -SW -W -13 -02 Feasibility Report <br />County Road D Reconstruction <br />16 <br />PROPOSED CONSTRUCTION General Commen ts <br />City staff has worked clos e ly with the neighborhood to develop preliminary plans that meet the <br />needs of both the neighborhood and the City at large. T his is a Municipal State Aid (MSA) <br />roadway and state aid funds will be used to pay for a portion of the costs ; the roadway must be <br />c onstructed to meet minimum MSA standards. The preliminary design, as presented in this <br />report, meets all applicable standards . <br />The proposed street width and parking is discussed in the following sections of the report . The <br />roadway will be constructed wit h a 10 -ton structural design, bituminous pavement, and <br />concrete curb and gutter. T he new pavement section for the road will have approximately 12 <br />inches of sand, 9 inches of aggregate base material with 4 inches of new bituminous pavement. <br />This recommende d improvement will meet the City’s and State Aid’s minimum standard for a <br />10 -ton design roadway. <br /> The concrete curb and gutter will be B618 straight -back design and will be constructed on both <br />sides of the roadway. The B618 curb style provides an edge gui de for snowplow equipment, <br />minimizing sod damage while performing winter maintenance . The new curb and gutter will be <br />matched into existing curb and gutter on intersecting streets. <br />Existing street grades will be altered where appropriate to improve draina ge. Such changes in <br />street grade will be designed to keep driveway ap proaches at a reasonable grade . In many <br />cases, grade changes on the roadway will result in more reasonable driveway grades and better <br />drainage . <br />The existing manholes and other structure s will be adjusted as necessary as part of this project. <br />The sanitary sewer mains have been televised and staff has i ncluded the repair of manholes in <br />the construction project . It has been determined that much of the disrepair in the mainline can <br />be repai red using trenchless technology. In addition, property owners with roots in their <br />sanitary sewer services will be given an opportunity to replace their services at th eir expense. <br />The watermain will be completely replaced, new hydrants and gate valves wil l be installed as a <br />part of the reconstruction. The cost of any watermain or sanitary sewer main replacement will <br />be financed by the appropriate utility fund. <br />If unsuitable material is encountered beneath the existing pavement during construction, it will <br />be removed and replaced with suitable backfill material. Any sod that is damaged as a result of <br />the project will be replaced. In order to match the new street, driveway approaches will be <br />removed approximately between the existing pavement and the proper ty line. The removed <br />driveway will be replaced with similar material - bituminous or concrete.