§ 18-25. Construction methods and requirements.

(a) 

Compliance with specifications. Construction methods and materials shall comply with the latest Connecticut Department of Transportation specifications for roads and bridges.

(b) 

Preparation of subgrade for roads. No gravel shall be placed on the prepared subgrade until the Director of Public Works or his agent has approved the condition of the subgrade.

(c) 

Slopes. Slopes shall be no steeper than 2:1 and loamed to a minimum depth of four inches, rolled, fertilized and seeded with the following seed mixture, or an equal or as required by the Selectmen:

(1) 

Forty-two percent domestic rye grass.

(2) 

Twenty-five percent creeping red fescue.

(3) 

Twelve percent perennial rye grass.

(4) 

Nine percent Kentucky blue grass.

(5) 

Ten percent redtop.

(6) 

Two percent white Dutch clover.

(d) 

Gravel subbase for roads. The subbase shall consist of at least 12 inches of bank-run gravel constructed in accord with state specifications. Where ledgerock is encountered, it shall be excavated a minimum of 18 inches and backfilled with gravel subbase. The holder of the road permit may be required to have a qualified testing laboratory perform at least three tests or one every 250 feet, whichever is greater. Any deficient area shall be corrected and retested at the expense of the holder of the road permit.

(e) 

Base course for roads. The base course shall be in accordance with the specifications herein.

(f) 

Wearing surface. The wearing surface of all roads will be bituminous concrete pavement, constructed in two courses to the thicknesses indicated herein. A minimum thickness of pavement shall be three inches after compaction. A higher-type pavement may be constructed with the permission of the Director of Public Works. No pavement may be installed until approval is given by the Director of Public Works. Any area of a road or driveway found to be deficient in compacted thickness by more than 1/2 inch shall be corrected with a one-inch overlay, provided that an acceptable grade and cross section can be achieved. At the ends of the overlay, the original pavement shall be cut back sufficiently to allow placement of the overlay. Feathering shall not be allowed. The Director of Public Works must be notified a minimum of 48 hours prior to the installation of each course of bituminous concrete and approval received before installation.

(g) 

Drainage. All drainage pipe shall be at least 15 inches in diameter except as noted below and installed with a minimum cover of three feet or, if less, as required by the gauge or class of pipe with the approval of the Director of Public Works. All installation and construction shall be to the line and grade indicated on submitted drawings. Underdrain pipe and outlets shall be of a size and location as determined by the Director of Public Works. Drainage pipe shall be laid along the greater cut or shallower fill side of the road. Curb-type catch basins, various types of endwalls, CL-type catch basins, manholes, wing-type endwalls and underdrain shall be constructed according to the dimensions, methods and materials shown in detail on Connecticut Department of Transportation Standard Sheets.

(h) 

Inspections; curbing.

(1) 

After drainage pipe is installed and prior to any backfilling, the subdivider and/or contractor shall notify the Department of Public Works. The Director of Public Works, or his representative, shall meet with the subdivider's and/or contractor's engineer to inspect the drainage. The Director of Public Works shall direct that any required changes be made and shall reinspect the drainage system prior to backfilling. The Director of Public Works shall notify the First Selectman and/or Planning Commission of his inspections.

(2) 

After the fine grading and prior to the application of the first course of bituminous concrete, the subdivider and/or contractor shall notify the Department of Public Works. The Director of Public Works, or his representative, shall meet with the subdivider's and/or contractor's engineer to inspect the roadway. The Director of Public Works shall direct that any required changes be made and shall reinspect the roadway prior to the application of the first course of bituminous concrete. The Director of Public Works shall notify the First Selectman and/or Planning Commission of his inspections.

(3) 

Curbing is required on all roads unless otherwise designated. At the time of this inspection those areas not requiring curbing shall be designated by the Director of Public Works. Curb must be installed prior to the second course of bituminous concrete.

(4) 

The Director of Public Works or his/her designee shall conduct progress inspections of all roads intended to be dedicated to the Town while such roads are under construction to ensure compliance with the terms of this article. The inspections shall consist of and be conducted at particular stages of construction as follows: [See current § 18-25(h) and for existing standards.]

(i) 

Construction sequence.

(1) 

Before fine grading is started, all service lines from underground utilities shall have been installed to every lot in the proposed subdivision. When all underground work is completed, the final grade shall be established and the pavement applied. Curbing, when required, shall then be installed throughout and shoulders fine graded as a final operation.

(2) 

Where utilities are existing or to be installed, the holder of the road permit shall raise all manholes, valve boxes, etc., up to the final road grade. These utility appurtenances shall be clearly visible and shall be so set that a true line and grade is maintained.

(3) 

In all cases, the installation of all utilities within the right-of-way shall be under the direction of the Director of Public Works. Service lines shall be run to each and every lot at the time of initial installation of the distribution main. Said service to extend to a point at least 24 inches outside the curbline and shall be terminated with a valve and curb box, in the case of gas and water service, or sanitary sewer where designated by the Sewer Commission.

(j) 

Bridges. Where bridges are to be built, they shall be designated to satisfy the requirements of H-20-S-16 wheel loading. Drawings and design calculations shall be submitted to the Director of Public Works and shall be certified by a professional engineer, registered in the State of Connecticut.

(k) 

Termination of work. Upon suspension or completion of the work or any portion thereof, the subdivider or contractor shall remove from all public or private property all temporary structures, tools and equipment, rubbish or waste materials resulting from his operations. All ditches shall be filled, all sewers, drains, catch basins and manholes cleaned and flushed, streets, walks, curbs and other structures cleaned and repaired and the whole work area left in a neat and clean condition.

(l) 

Sight distance. Adequate sight distance at all intersections shall be provided. The holder of the road permit shall regrade all areas falling within the sight distance triangle. He shall remove trees, brush, stones, etc., and other objects designated by the Director of Public Works or his agent so that clear, unobstructed sight distance is obtained.

(m) 

Unaccepted streets.

(1) 

All private roads in existence at the date of the passage of this article and submitted to the town for acceptance shall conform to the road ordinance in effect at the time of construction.

(2) 

If a private road was constructed prior to a road ordinance, the following minimum specifications shall apply:

a. 

Minimum right-of-way: 40 feet.

b. 

Minimum pavement width: 18 feet.

(3) 

All other specifications shall follow this article or as directed by the Director of Public Works.

Ord. of 6-15-1978, § 3; Ord. of 12-8-2006