§ 13-8. Improvement schedule.

(a)

Profile street grade. Prior to granting of any building permits within a new subdivision and prior to the construction of any improvements of a utility nature, the developer shall establish a profile grade for all streets therein to a city approved subgrade. Upon approval by the city engineer, the said streets may be cut to grade, instead of subgrade.

(b)

House services. Each house service curb box shall be installed at the property line. During construction each curb box shall be appropriately marked and prior to final approval by the city each curb box shall be inspected by the city for damage. House services for water and sanitary sewer may be placed in the same trench if copper water service and cast iron soil pipe are used.

(c)

Location of buried utilities. All buried utilities shall be placed in the street right-of-way in the following location unless approved otherwise by the council.

(1)

Sanitary sewer. Centerline of street.

(2)

Water main. 12 feet north or east of centerline.

(3)

Storm sewer. Ten feet south or west of centerline.

(4)

Water and sewer services. At center of each lot, if not in a common trench, water service shall be at least ten feet upstream of the sewer service at center of lot, said sewer service to be toward the lower end of lot, as specified by the city in individual cases.

(5)

Gas main. South and west of street centerline and 11 feet from property line.

(6)

Telephone lines. North and east of street centerline and 11 feet from property line.

(d)

Street surfacing. All streets and alleys shall be surfaced in accordance with the following specifications:

(1)

Standard cross section. All residential streets shall be constructed to conform to the New Hope Standard Street Cross Sections as shown on standard detail drawings 101a through 108a.

(2)

Procedure. Street construction shall proceed in the following manner unless otherwise approved, in writing, by the engineer.

a.

Street grade and subgrade preparation. After the design street grades have been approved by the engineer, the street shall be cut to the approved grade and immediately subcut to the elevation of the bottom of the base. All unstable material shall be removed and backfilled with stable material as approved by the engineer. The subgrade centerline shall be profiled prior to installation of utilities to insure compliance with design grade and the profile submitted to the engineer for his approval.

b.

Temporary street details. The developer may provide a temporary gravel surface during installation of utilities and construction of homes sufficient to carry traffic. Temporary drainage shall be maintained at all times. No permanent driveways shall be constructed in the right-of-way until after the installation of concrete curb and gutter. The contractor shall provide a bituminous dust coat, at his own expense, if required by the engineer.

c.

Curb and gutter. Concrete curb and gutter shall be constructed, upon approval of the engineer, only after all utilities and services are in place. Boulevard sod, boulevard trees and street signs shall be installed after completion of curb.

d.

Street base and subbase. Prior to placing permanent gravel base, the subbase shall be regraded as necessary to provide for a full eight inch of acceptable gravel base and three inches of bituminous surfacing. All soft spots and settlement shall be eliminated. Any gravel base placed as temporary gravel surfacing that is contaminated with subgrade material shall be removed. After the subbase has been approved by the engineer, the contractor shall place and compact the permanent gravel base. All manholes, catch basins and gate valves shall be adjusted to the design grade by the contractor prior to paving.

e.

Inspection prior to paving. No paving shall be allowed until the base has been inspected and approved by the engineer. There shall be a paving inspector furnished by the city on the job site at all times and the contractor shall notify the engineer in sufficient time, no less than 24 hours prior to paving, to schedule an inspector to be present.

f.

Seal coat. A peagravel or slurry seal coat as determined by the city shall be applied to the finished street. Seal coat shall not be applied until all soft spots or breakups have been repaired and until the adjustments of all manholes, catch basins and gate valves have been checked by the city.

(3)

Construction requirements. Construction shall be in accordance with all requirements of the most current Minnesota Department of Highways Specification Sections hereinafter referred to unless specifically changed herein.

a.

Grading.

1.

Construction procedure and methods. Construction procedure and methods shall be in accordance with Minnesota Highway Department Specification Sections 2105, 2106 and 2110.

2.

Right-of-way grading. The entire right-of-way shall be graded to the approved design grade as shown on Detail Plate 101A.

3.

Protection of existing utilities. It shall be the responsibility of the contractor to protect from damage all existing utilities and shall repair immediately any damage thereto. The contractor shall remove immediately any sand, gravel or other material from the manholes, catch basins or gate valve boxes at his own expense.

b.

Concrete curb and gutter and driveway aprons.

1.

Construction procedure and methods. Construction procedure and methods shall be in accordance with Minnesota Highway Department Specification Section 2531, and in accordance with Standard Detail Drawing 108A.

2.

Approval of curb. No curb shall be installed without approval of the engineer.

3.

Special curb procedure. Where curb is to be installed over service trenches less than one year after installation of utilities, special compaction shall be required over said trenches. Two No. 4 reinforcing bars shall be imbedded in the curb to extend not less than five feet beyond each edge of said trench. This reinforcing is required regardless of when curb is placed.

4.

Faulty or defective curb. Any damaged or broken curb or any curb not meeting the above specifications shall be removed immediately upon written order by the engineer and replaced at the contractor's expense.

5.

Concrete driveway apron. A concrete driveway apron extending from the back of the curb to the property line shall be constructed in accordance with details shown on Standard Detail Plate 106A.

c.

Base.

1.

Construction procedure and methods. Construction procedure and methods shall be in accordance with Minnesota Highway Department Specification Section 2202.

2.

Gravel base. Class 5 or 6 gravel base shall be used.

3.

Testing of base. Test results of the base material shall be submitted for approval to the engineer to verify compliance with Section 3138 of the Minnesota Highway Department specifications prior to installation.

4.

Temporary gravel surfacing. Any temporary gravel surfacing above the design subbase that does not meet a Class 5 gravel specification shall be removed.

5.

Subbase inspection. No permanent gravel base shall be constructed until the subbase has been inspected and approved by the engineer.

6.

Gravel base substitute. Four inches of bituminous base in accordance with Minnesota Highway Department Specification Section 2331 may be substituted for Class 5 gravel base.

d.

Surfacing.

1.

Construction procedure and methods. Construction procedure and methods shall be in accordance with Minnesota Highway Department Specification Section 2341.

2.

Engineer approval required. Copies of test reports and proposed mix proportions shall be submitted to the engineer for his approval and shall designate the amount and type of materials to be used for prime and seal coat.

3.

Surfacing mix application. 300 pounds per square yard of surfacing mix shall be applied in one layer.

4.

Base inspection required. Paving will be permitted only after base has been inspected and approved by the engineer.

5.

Paving inspector. An inspector furnished by the city shall be on the job site during the paving construction.

e.

Seal coat.

1.

Construction procedure and methods. Construction procedure and methods shall be in accordance with Minnesota Highway Department Specification Section 2356.

2.

Approval, minimum application delay. Seal coat shall not be applied less than two months after completion of paving and shall not be applied without approval of the engineer.

3.

Maximum delay. Seal coat may be delayed one year from completion of paving.

4.

Seal coat inspector. An inspector furnished by the city shall be on the job site during the seal coat application.

f.

Sod, boulevard trees, street signs.

1.

Construction procedure and methods. Construction procedure and methods for sod shall be in accordance with Minnesota Highway Department Specification Section 2576.

2.

Sodding time. Sodding shall be done after completion of curb and gutter.

3.

Water service curb box adjustment. All water service curb boxes shall be adjusted to grade at time of installation of sod.

4.

Finish grade. It shall be the responsibility of the contractor to finish grade the boulevard in accordance with City Street Standard Cross-section Sheet 101A, and to protect all survey monuments and property irons and to replace any that are disturbed or destroyed.

5.

Street trees. One two and one-half inch to three inch caliper approved street tree shall be provided for each lot. If planted within the public right-of-way, the tree shall be planted five feet behind back of curb at the approximate center of each lot, but not over service. Developers are encouraged, however, to plant street trees on the lot in conformance with subsection 13-7(d).

6.

Street signs. Street signs shall be located at each intersection as shown on Standard Detail Plate 104A and shall be in accordance with Standard Detail 103A.

(4)

Inspection. Inspection necessary to determine compliance with the above specifications will be provided by the city. The developer shall notify the engineer in sufficient time to schedule inspectors as necessary; in no case shall such notice be less than 24 hours prior to anticipation of work.

(5)

Faulty work. Any work, which, in the opinion of the engineer,does not meet the above specifications shall, upon written order from the engineer, be removed immediately and replaced and corrected by the developer at his own expense. The cost of all inspection and supervision required to insure correction of the unacceptable work and all tests necessary to insure that such faulty work has been corrected shall be paid for by the contractor. The city will not accept any street for permanent maintenance until after correction of faulty or unacceptable construction.

(6)

Incorporation. Minnesota Highway Specifications Sections 2105, 2106, 2110, 2202, 2341, 2356, 2531, 2576 and 3138 are hereby incorporated by reference as though fully set forth herein. Three copies of said specifications shall be filed in the city clerk's office for inspection and use of the public and shall be marked with the words, "The City of New Hope-official copy". Standard Detail Drawings 101A through 108A are hereby incorporated by reference as though fully set forth herein. Three copies of said drawings shall be filed in the city clerk's office for inspection and use of the public and shall be marked with the words, "The City of New Hope-official copy".