Agenda - Council - 01/09/1996 - Laserfiche WebLink

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The streets will be proposed to be paved to a width of 30 feet, and consist of a two-inch bituminous mat placed on top of a four-inch gravel base. It will incorporate a fourdnch bituminous berm curb. This is the City's present design standard for rural residential streets. The streets will be centered in the right-of-way. It is not anticipated that there will be major impacts to existing landscaping adjacent to the roadway; however, some shrub removal and tree pruning may be necessary. Only minor grading is anticipated throughout most of the project, as existing vertical grades are generally satisfactory and matching the existing grade as closely as possible will minimize construction disruption. Along Fluorine Street grade changes may approach two feet at the location of the proposed catchbasins in order to facilitate curbline flow to the created low point. The proposed construction would not include any driveway construction. Only a one-foot apron will be provided at driveways, except where a driveway may need to be regraded to match a new street grade. In such cases, driveways will be neatly cut and replaced in-kind with the type of surface removed. Disturbed tuff areas will be graded, fertilized, seeded, and mulched. If additional topsoil is desired, it will be the responsibility of the property owner to provide the material. ESTIMATED PROJECT COSTS The estimated project costs are presented in Table 1 and include detailed construction costs and overhead costs. Overhead costs include, but are not limited to, engineering, construction staking, inspection, fiscal and legal, administrative, and contingency costs. In this project, overhead costs will also include the cost of drainage easements. The overhead costs are estimated as a percentage of construction costs as follows: Engineering 8% Staking and Inspection 7% Fiscal and Legal 3% Administration 5% Contingencies 5% Easement Acquisition ~% 33% I I I I I I I I I I I I I I I I I I I