The improvement standards and specifications shall be as follows, except that any variations or additional requirements from these specifications, which may be required because of adverse site characteristics, will be determined by the City Engineer. All materials and construction methods shall be in accordance with the appropriate section of the current edition of the Ohio Department of Transportation specifications, herein abbreviated as ODOT, and Appendix 7, Standard Drawings. All streets and utility improvements, both public and private, shall conform to these specifications:
(1) Major and minor arterial thoroughfares. The type and thickness of pavement will vary with design capacity, speed and loading. The developer will be responsible only for curbs and gutters and a maximum of 31 feet of pavement cost, as determined by the engineer of jurisdiction. Major and minor arterial thoroughfares shall be constructed from plans furnished by the engineer of jurisdiction and to the standards and specifications established therein.
(2) Collector, commercial and industrial streets.
A. The type and thickness of pavement shall be as follows:
1. Ten inches (ODOT 304) limestone base, bituminous prime and two and one-half inches of (ODOT 448-2) asphaltic concrete base surface and one and one-half inches of (ODOT 448-1) asphaltic concrete surface;
2. Four inches of (ODOT 304) limestone aggregate base, seven inches of (ODOT 301) asphaltic concrete base and two inches of (ODOT 448-1) asphaltic concrete surface;
3. Four inches of (ODOT 304) limestone, seven inches of (ODOT 452) portland concrete pavement designed to ODOT Pavement Design and Rehabilitation Manual requirements.
B. Six inch underdrains (ODOT 605) shall be installed on both sides of street for options A.1., A.2. and A.3.
(3) Local residential; cul-de-sacs.
A. The type and thickness of pavement shall be as follows:
1. Eight inches (ODOT 304) limestone base, bituminous prime and two and one-half inches (ODOT 448-1) asphaltic concrete surface;
2. Four inches (ODOT 304) and six inches of (ODOT 301) bituminous aggregate base and one and one-half inches of (ODOT 448-1) asphaltic concrete surface;
3. Four inches (ODOT 304) limestone, six inches (ODOT 452) portland concrete pavement designed to ODOT Pavement Design and Rehabilitation Manual requirements.
B. Six inch underdrains (ODOT 605) shall be installed on both sides of street for options A.1., A.2. and A.3.
(4) Pavement drainage.
A. Roadway ditches having a grade in excess of 2% shall have an approved type gutter using concrete, stone, sod or underground drainage, with sufficient inlet spaces at intervals.
B. All driveways where ditches are used shall be provided with a drive pipe having a minimum diameter of 12 inches and being a minimum of 20 feet long, or at least eight feet longer than the width of the driveway. The invert of the pipe shall be 18 inches below the centerline of the pavement (C.M.P. or equal).
C. All street pavements shall slope from the crown to each gutter at three-sixteenths of an inch per foot minimum.
D. The subdivider shall show the cross-sections and centerline profile of all existing pavements and intersections and a profile at the stub end for future extensions of pavement and drainage.
(b) Curbs and gutters. Integral curbs may be constructed with concrete pavements. Curbs and gutters shall be constructed of portland cement (ODOT 609).
(1) Gutter plate minimum width: 18 inches; minimum thickness: eight and one-half inches.
(2) Minimum curb height: six inches (front); 13 inches (back).
(3) Minimum curb width: six inches.
(4) Type of material: concrete (see Appendix 7, Standard Drawings).
(c) Driveways.
(1) Minimum width: 18 feet at curb and ten feet at sidewalk. Minimum apron: four feet on each side of driveway.
(2) Type and thickness of base material: six inches plain concrete (ODOT 452), five inches (ODOT 301) plus one inch (ODOT 404) or eight inches (ODOT 304) plus two inches (ODOT 404) or equivalent.
(d) Sidewalks. Sidewalk provisions are specified in the required improvements schedule set forth in § 1248.01, Table 2. Sidewalks shall be located two feet inside the street right-of-way lines.
(1) Minimum width: five feet.
(2) Minimum thickness: four inches.
(3) Minimum thickness at driveways: six inches.
(4) Material: plain portland concrete (class C).
(5) Sidewalks shall be constructed pursuant to R.C. § 729.12 to provide ramped curbing.
(e) Storm sewer systems. Storm sewer systems and other drainage improvements shall be in accordance with the standards and specifications of, and subject to approval by, the City Engineer.
(f) Electric lines. In all subdivisions, electric current conductors may be buried as per § 1246.04 and as per power supplier specifications. Above ground pads for transformers will be permitted.
(g) Gas mains. Gas mains, when proposed, shall be installed in the green belt between the sidewalk and the curb, with a minimum 30-inch cover. Service lines shall be installed with a minimum 18-inch cover as per specifications of Columbia Gas of Ohio, Inc. Locations are to be approved by City Engineer.
(h) Street name and traffic control signs. Street name signs (to be provided by the developer) shall be installed at all intersections, and traffic-control signs (to be provided by the city) shall conform to ODOT standards.
(1) Minimum size of sign: six inches high, 18 inches long.
(2) Minimum height above ground: eight feet.
(3) Sign plates: sign plates shall conform to standards set forth by the City Engineer.
(4) Posts: sign posts shall conform to standards set forth by the City Engineer.
(i) Water supply.
(1) If the city water supply is not available, a water supply distribution system, if required, shall be designed, located and constructed in accordance with the requirements of the Ohio Environmental Protection Agency and city regulations.
(2) The following minimum standards and specifications shall apply:
A. Main size: eight inches in diameter (minimum).
B. Waterline material shall be as follows:
1. Ductile case iron water main specifications, ANSI-A21.52, Class 2, including mechanical joint fitting (AWWA-specification C153).
2. Polyvinyl chloride (PVC) water main specifications AWWA/ANSI C900 DR18, including mechanical joint fitting (AWWA-specification C153).
C. Fire hydrants shall be installed as follows:
1. Location: At each intersection and a maximum distance of 500 feet between hydrants.
2. Type of hydrant: city standard, with a six-inch gate valve on hydrant lead, per specification AWWA-C502.
D. Valves: 16-inch and larger: butterfly type; smaller than 16-inch: gate type.
E. Depth: four and one-half foot cover over water main (minimum).
F. Tap: One required for each residence as follows:
1. Three-quarter inch diameter, Type K copper, 160 pounds per square inch rating, ASTM D-2737, known as service pipe or municipal pipe that can be flared for use with compression fittings, or other equivalent material approved by the City Engineer.
2. Three-quarter inch corporation stop.
3. Three-quarter inch curb stop and box located at the right-of-way.
4. a. All waterlines shall be constructed in a continuous loop system meeting city and Ohio EPA regulations and specifications by connecting to new or existing water lines so that no line shall be a dead end; or
b. The developer must provide plans and calculations certified by an Ohio registered engineer demonstrating that the proposed extension will cause no decrease of flow or pressure for both domestic and fire flow supply situations from the point of the last documented continuous looping in the existing city's distribution system. Proposed plans must meet City of Shelby and Ohio EPA regulations and specifications.
c. In either case, plans and calculations must be approved by the Deputy Director of Public Services (Utilities Director), Water Superintendent and City Engineer.
5. Larger taps shall be approved by the Water Division and installed at the expense of the developer.
(j) Sanitary sewers.
(1) If the city sanitary sewer is not available, a sanitary sewer collection system, if required, shall be designed, located and constructed in accordance with the requirements of the Ohio Environmental Protection Agency and city regulations.
(2) The following minimum standards and specifications shall apply:
A. Main size: eight-inch diameter.
B. Material: PVC pipe, current ASTM C-425.
C. Pipe joints: premium current ASTM C-425.
D. House tap: one required for each lot to the right-of-way line, as follows:
1. Six-inch diameter minimum.
2. Installed by a "T" or "Y" connection method.
E. Manholes:
1. Wall sections: four-foot minimum diameter precast concrete, ASTM Designation C-478;
2. Joints between sections: ASTM Designation C-443;
3. Frame and cover: as approved by the City Engineer, or other approved equivalent;
4. Maximum distance between manholes: 400 feet (see Appendix 7, Standard Drawings).
(k) Testing of water and sewer lines. Testing of water lines and sanitary sewer lines after installation shall be done by the subdivider in accordance with the procedures and requirements of the City Engineer.
(Ord. 17-83, passed 6-6-1983; Ord. 1-2004, passed 2-2-2004; Ord. 15-2004, passed 5-17-2004; Ord. 14-2005, passed 5-2-2005; Ord. 13-2019, passed 7-15-2019)