The following construction methods are general and will apply to each and every street hereafter constructed in the city:
(1) Silt Fence. Silt fence shall be placed as directed or approved by the City Engineer prior to construction to provide for erosion control. Additional silt fence shall be installed during construction as deemed necessary by the City Engineer or Public Works Director to address site conditions.
(2) Clearing and Grubbing. Areas which will be disturbed by street construction shall be stripped of all vegetation, trees and topsoil. Acceptable topsoil may be appropriately stockpiled for reuse.
(3) Utilities. Sanitary sewer, water and storm sewer construction shall be completed prior to or in conjunction with street construction.
(4) Compaction. The subbase and gravel base shall be compacted to a minimum of 100% of standard proctor density. Pavement shall be compacted by the ordinary compaction method.
(5) Connecting to Existing Streets. Connections to existing paved streets shall require a straight edge cut and tack coat applied prior to paving of the new street.
(6) Bituminous Paving. Successive pavement construction shall be tacked to prior work in accordance with Mn/DOT Specification 2356.
(7) Turf establishment. Work required for turf establishment shall be completed during the same construction season in which the streets were rough graded.
(8) Testing. All tests herein required shall be taken by an accredited soils testing laboratory. Tests shall be paid for by the developer on a developer installed project. Tests will include but not be limited to:
(a) Density Tests. Density tests will be taken on the subbase and base courses by a qualified testing laboratory.
(b) Test Rolling. This work shall consist of testing the bearing capacity of the subgrade prior to gravel base construction by rolling with heavy equipment. Test rolling equipment shall be in accordance with Mn/DOT Specification 2111.2 or the contractor may use a loaded dump truck which will deliver a minimum load of nine tons per axle. Test rolling shall be performed when the grading is completed within 0.1 foot of the grade staked by the Engineer and shall cover the entire top width of the pavement structure. Test rolling shall be performed only when the Engineer and Contractor mutually agree that the subgrade is acceptable for test rolling.
(c) Concrete Air Test. Air tests will be taken by a qualified testing laboratory.
(d) Concrete Cylinder. Concrete cylinders will be cast and the compressive strength determined by a qualified testing laboratory.
(e) Bituminous Samples. Bituminous samples shall be taken during placement and tested by a qualified testing laboratory to check the bituminous content, gradation and Marshall density of the bituminous material.
(f) Test Frequencies. Test frequencies shall be determined by the City Engineer or Public Works Director. With the exception of test rolling in subsection (b) above, a minimum of two tests will be required.
(Prior Code, §§ 302.06, 302.07; Am. Ord. 03-90, passed 5-29-1990.)