(a) Design and Arrangement.
(1) The arrangement of streets in new subdivisions shall make provisions for the continuation of the principal existing streets in adjoining area (or their proper projection where adjoining land is not subdivided) insofar as they may be deemed necessary for public requirements. Every subdivision shall have access to a public right-of-way.
(2) The street and alley arrangement shall be such as not to cause hardship to owners of adjoining property when they plat their own land and seek to provide for convenient access to it. Residential streets shall be so designed as to discourage through traffic, but offset streets should be avoided.
(3) The angle of intersection between minor streets and major streets should not vary by more than ten (10) degrees from a right angle. All other streets should intersect each other as near to a right angle as possible.
(4) The minimum curb radius shall be twenty (20) feet to face of curb. Without curb the minimum pavement radius shall be thirty (30) feet to edge of pavements.
Curb and gutter shall be required for all areas of fifteen percent (15%) or greater slope.
(5) Residential streets shall be designed to discourage through traffic which may otherwise use secondary or major highways, and whose origin and destination are not within the subdivision. Residential streets extending for considerable distance, parallel to any secondary or major street, should be avoided.
(b) Alignment.
(1) Vertical. For main thoroughfares, profile grades shall be connected by vertical curves of a minimum length equivalent to twenty (20) times the algebraic difference between the rates of grade, expressed in feet per hundred; for secondary and minor streets and alleys, fifteen (15) times.
For slope areas where the average topographic slope is fifteen (15) percent or greater refer to Hillside Regulations, Chapter 1121.
(2) Minimum Horizontal. The radii of centerline curvature:
Primary Thoroughfares 15 degrees 475 feet Secondary Thoroughfares 19 degrees 300 feet Minor Streets 28 degrees 200 feet Streets shorter than 500 feet 53 degrees 100 feet |
A minimum fifty (50) foot tangent shall be introduced between reverse curves.
For slope areas where the average topographic slope is fifteen percent (15%) or greater refer to Hillside Regulations, Chapter 1121.
(3) Visibility Requirements.
A. Minimum vertical visibility (measured four and one-half (4-1/2) feet eye level to tail light eighteen (18) inches above ground level).
500 feet on primary thoroughfares
300 feet on secondary thoroughfares
200 feet on minor streets
100 feet on streets shorter than 500 feet
For slope areas where the average topographic slope is fifteen percent (15%) or greater refer to Hillside Regulations, Chapter 1121.
B. Minimum horizontal visibility shall be:
500 feet on main thoroughfare measured on centerline
300 feet on secondary thoroughfares measured on centerline
100 feet on all other streets measured on centerline
For slope areas where the average topographic slope is fifteen percent (15%) or greater refer to Hillside Regulations, Chapter 1121.
(c) Street Type and Width:
(1) The width of all major thoroughfares shall conform to the width designated on the Thoroughfare Plan of Gallipolis, Ohio.
(2) The minimum right-of-way widths of all collector streets shall be sixty (60) feet.
For slope areas where the average topographic slope is fifteen percent (15%) or greater refer to Hillside Regulations, Chapter 1121.
(3) The minimum width of local streets shall be fifty (50) feet and the pavement width shall be twenty-eight (28) feet, except where there are unusual topographical or other physical conditions, the Planning Commission may require a greater width for a local street. The minimum width of local streets serving multiple dwellings shall be sixty (60) feet and the pavement width shall be thirty-six (36) feet.
(4) Half-streets. Dedication of new half streets shall not be permitted. Where a dedicated or platted half-street or alley exists adjacent to the tract being subdivided, the other half shall be platted, if deemed necessary, by the Planning Commission.
(5) Cul-de-sacs. Each cul-de-sac shall be provided with a turnaround having a minimum right-of-way radius of fifty (50) feet. The outside of the road surface within the turnaround right-of-way shall have a minimum radius of thirty-eight (38) feet. The maximum length for a cul-de-sac shall be six hundred (600) feet.
(6) Dead-end streets. Dead-end streets, designated to be so permanently, shall not be permitted. Any dead-end street of a temporary nature, if longer than two hundred (200) feet or fronted by existing lots, shall have a surfaced turning area equal in diameter to the width of said street at its termination.
(7) Location. When a proposed subdivision is adjacent to or contains a state highway, the developer and Planning Commission should seek information from the Ohio Department of Highways as to the status of the said highway in reference to width and direction, and also the type of access permitted to said highway.
(8) Limitation of number of vehicular access points to arterial highways or major streets. Safety factors and the need for effective utilization of major thoroughfares require limiting the number of vehicular access points to arterial highways and major streets to promote efficient traffic movements and reduce safety hazards. Where a subdivision adjoins an arterial highway or major streets, vehicular access to subdivided lots shall be kept to a minimum and shall not exceed the following standards:
Maximum Number of Feet of Frontage Vehicular Access Points Less than 500 feet One (1) 600 feet to 1,000 feet Two (2) Over 1,000 feet Two (2) for the first 1,000 feet of frontage; plus one (1) point of access for each additional 1,000 feet of frontage |
The local street arrangement connecting with these access points may be accomplished in one of three ways:
A. Marginal access street with a planting strip of a minimum width of twenty (20) feet between major street or highway pavement and the marginal access street pavement. The marginal access street shall have a minimum pavement width of twenty (20) feet.
B. Local street (reverse frontage) with residences facing away from the major thoroughfare. In this case, the rear yards (those between the residences and the major thoroughfare) shall have a minimum depth of seventy (70) feet which includes a twenty (20) foot reservation strip abutting the major thoroughfares for screen planting of trees and shrubs. A masonry or wooden ornamental screen may be substituted for the planting.
C. Intersecting local streets or cul-de-sac streets perpendicular to the major thoroughfare where unusual topographic conditions warrant such design.
(10) Street Grades. Street grade shall not exceed the following with due allowances for reasonable vertical curves:
Primary thoroughfare 5% Secondary thoroughfare 6% Minor streets and alleys 8% Streets shorter than 500 feet and cul-de-sacs 10% |
(11) Street names. New names are required for new streets; the names shall meet with the approval of the Planning Commission. No name shall be similar in spelling or pronunciation to that of an existing street.
(12) Acceptance of streets. The City Manager shall, upon written request by the owner of the land upon which the street has been constructed, check the construction by stages; and if the City Manager finds that such street is constructed in accordance with the specifications set forth on the approved plat and that such street is in good repair, then such finding, endorsed on the approved plat, shall constitute an acceptance of the street for public use by the Municipality.
(Ord. 67-11. Passed 1-24-67.)