Construction shall be subject to the approval of and shall be carried out under the supervision of the City Engineer and Street Commissioner or their authorized agents. No pipe, catch basin, manhole or structure shall be backfilled until inspected and approved by the City Engineer and Street Commissioner or their authorized agents. The Commission, City Engineer and Street Commissioner or their authorized agents shall have free access to the construction work at all times and shall be authorized to take material samples, cores and other tests as deemed necessary to determine compliance with these Regulations. The Commission, City Engineer or Street Commissioner may require the applicant, at his own expense, to have such tests made and certified by a licensed professional engineer.

Streets shall be constructed in accordance with the following standards:

Pavements shall be constructed with a crown with a cross slope of 3/8 inch per foot. A ten-foot sidewalk area shall be provided and graded on each side of the pavement. The sidewalk area shall be provided and graded from the back of the curb to the street line and shall slope up from the curb at 1/2 inch per foot. The entire sidewalk area shall be loamed and seeded as provided in Paragraph 5/3/6.

All trees and roots shall be stripped to below the base course of the pavement and for the full width of the pavement. All soft spots, peat, organic material, soft clay, spongy soil, boulders and other unsuitable material shall be removed and replaced by material approved by the City Engineer and Street commissioner or their agent. All fill that is placed to an elevation of less than three feet above water table at the time of filling shall consist of rock or free-draining soil meeting State Highway Department Specifications. The sub-grade shall be rolled with a ten-ton roller before placing the base course.

Upon the prepared sub-grade shall be spread a uniform gravel or broken stone surface, which shall have a minimum depth after compaction of twelve (12) inches. Where ledge rock is encountered, the depth shall be increased as requested by the City Engineer or his authorized agent. All surfacing material shall be approved prior to placing by the City Engineer or his authorized agent. The base course shall be thoroughly compacted with a ten-ton roller. After grading with an approved heavy duty type motor grader to approved lines and grades. Gravel shall meet State Highway Department Specifications, Section 3.02.02.

On the prepared and approved base course there shall be spread by a mechanical compacting type paver, acceptable to and approved by the City Engineer, a two-course surface of bituminous concrete. Each course shall consist of not less than one and one half (1 1/2") inches depth after rolling with a minimum ten-ton roller., Additional courses if required due to inadequacies shall be of equal thickness. Pavement width shall be at least two (2) feet wider than the width specified under Section 4-5-3 prior to the application of curbing. The material shall conform to the requirements of the State Highway Department for Dense Graded Bituminous Concrete Pavement. The first course shall be Surface Grade class 1 or Binder course as directed by the City Engineer and the second course shall be Surface Grade Class 1 or 2 also as directed. All procedures and compaction shall be as specified by the State Highway Department specifications for this type of pavement. Upon completion of the curbing installation there shall be no evidence of puddling of storm water. In the event that any repairs are required or joints are involved with existing pavement the existing pavement shall be cut and an approved bonding agent applied to provide a feathering out of the pavement material. All paving shall be done at approved times and under approved conditions.

The City Engineer may require the installation of under drains beneath the street pavement where necessary to protect the stability of the pavement.

Cut or fill sections beyond the ten-foot sidewalk area shall not exceed a slope of 1 on 3 except in rock. However, with the approval of the City Engineer, steeper slopes may be permitted when properly stabilized with an approved, appropriate slope treatment. The City Engineer may require a decrease in the amount of slope to whatever extent is necessary to maintain the stability of the bank under the particular soil conditions. All earth surfaces of slopes, and areas that have been disturbed in any way due to grading and construction of streets, shall be covered with a minimum of four inches of topsoil and suitably planted or seeded to prevent soil erosion. The City Engineer may require the removal or lowering of embankments adjacent to street intersections in order to assure adequate sight distance at the intersection. No cut or fill sections beyond the ten foot sidewalk area shall extend into property outside the subdivision on property not owned by the applicant unless appropriate slope rights are obtained for the City; in the absence of such slope rights appropriate retaining walls shall be constructed within the subdivision to prevent encroachment upon adjoining property.

Line and grade stakes shall not be spaced more than fifty feet apart and shall be set by a land surveyor or engineer and maintained in good order during construction and until the street is approved by the City Engineer. The City Engineer shall be notified 48 hours before gravel is placed on the sub-grade and before any paving operation. No street shall be opened or used for travel until it shall have been approved by the City Engineer.

Storm drainage shall be constructed in accordance with the following standards.

All pipe used shall be of reinforced concrete meeting State Highway Department specifications. For pipe sizes 24" in diameter and larger, and where grades exceed 10%, the City Engineer may permit the use of metal pipe in-accordance with State Highway Department specifications.

All open ditches shall be constructed in accordance with the "Standard Construction Details for Subdivision Improvements".

The joints of all pipes shall be shoved tight. Pipe la id in sandy, silty or other soil in which, in the judgment of the City Engineer there is danger of washing or cave-ins, shall have joints thoroughly sealed with 1:3 concrete mortar.

Catch basins and manholes shall be constructed in accordance with the "Standard Construction Details for Subdivision Improvements. On steep slopes or in special grade situations the City Engineer may require catch basins to be depressed to facilitate the collection of water.

Where the drainage pipe is necessary to serve as an under drain for the street or to control the water table, the trench around and over the pipe shall be backfilled with washed gravel.

All pipe shall be laid to line and grade as shown on approved drainage plans and profiles. Line and grade stakes shall be set by a land surveyor or engineer and shall be maintained in good order until the work has been inspected and approved by the City Engineer. Three batter boards shall be maintained in place at all times when laying pipe and shall not be spaced more than thirty feet apart.

Steel bar reinforced concrete monuments shall be built of 1:3:4 mix, a minimum of four (4) inches square on the bottom and three (3) feet long. Each monument shall have a brass plug or iron rod at least six (6) inches long in the top and shall be set so that the marked center of the top shall be the point of reference, and the bottom shall extend a minimum of three feet below grade. The tops of such monuments shall be set in place after all other street development is completed. The accuracy of location of such monuments shall be certified in writing by the land surveyor making the Record Subdivision Map.

Guard posts or fencing shall be installed at all drainage headwalls in the right-of-way and along all streets where there will be an embankment with a depth of four (4) feet or more within twenty feet of the proposed pavement. Creosoted or cedar guard posts shall be spaced six feet on center and-shall have a minimum tip diameter of five inches and a minimum length of seven feet with 3 1/2 feet set in the ground. Subject to the approval of the City Engineer, three-cable guide railing, metal beam type guide railing or steel guard posts of suitable design may be substituted for the creosoted or cedar guard posts. In locations required by the Commission, fencing shall be installed at the back of any walkway where there will be hazardous conditions. All materials and construction methods and details shall be subject to the approval of the City Engineer.

The curbing shall be machine formed and shall consist of bituminous concrete, constructed on the pavement to the dimensions and details shown on the "Standard Construction Details for Subdivision Improvements". The material shall conform to the requirements of the State Highway Department for either Hot Asphalt Concrete or Dense Graded Bituminous Concrete. The surface of the pavement where the bituminous concrete curbing is to be constructed shall have been cleared of all loose and foreign material, shall be perfectly dry and shall be coated with an R.C.-2 or other approved bitumen just before placing the material. The material shall be properly compacted to the required cross-section by use of a suitable machine specifically designed for that purpose. After completion of the curbing, traffic shall be kept at a safe distance for a period of not less than 24 hours and until the curbing has set sufficiently to prevent injury to the work.

Sidewalks shall be constructed of either bituminous concrete or Portland Cement concrete, having a minimum width of four feet and located within the street lines with one edge abutting the property line.

Sidewalks constructed of bituminous concrete shall have a minimum thickness after compaction of not less than two (2) inches and shall be laid on an 8-inch bank run gravel base, tamped and rolled. The bituminous concrete material shall conform to the requirements of the State Highway Department for either. Hot Asphalt Concrete or Dense Graded Bituminous Concrete.

Sidewalks constructed or Portland Cement concrete shall be laid on a six inch bank run gravel base, tamped and rolled, and shall be constructed of concrete, four inches thick, having an ultimate strength of 3,000 pounds per square inch and having expansion joints with pre-molded fillers spaced every twenty feet and suitable weakened plane joints every five feet.

Street name signs shall be installed at all street intersections in locations approved by the Street Commissioner. Such signs shall be metal poles and metal signs of a design and material approved by the City Engineer.