(A) All public street improvements, including pavement width, street grades, alignment and visibility, intersections and access shall be designed in accordance with standard accepted engineering practices and are subject to the approval of the City Engineer.
(B) Street system coordination and arrangement.
(1) The arrangement of streets in new subdivisions shall conform to the major street plan or the comprehensive plan.
(2) Provisions shall be made for the continuation of existing streets in adjoining areas or their proper extension where adjoining land is not subdivided.
(3) Whenever new streets are proposed which have not been included in the major street plan in the comprehensive plan, amendment of the major street plan to include these new streets is required first.
(4) As a general rule, collector streets shall be located every half mile, and there should be a street connecting adjacent subdivisions at appropriate intervals where topographical and land use considerations permit.
(5) The arrangement of all streets and alleys shall be such as to minimize hardship to owners of adjoining property when they plat their own land and seek to provide for convenient access to it.
(6) In undeveloped or vacant areas, streets shall be identified and classified through the transportation planning process. The location of major streets shall conform to the major street plan.
(C) Street names.
(1) Streets in alignment with existing streets shall bear the names of those streets.
(2) No street names shall be used which will duplicate, be the same in spelling or alike in pronunciation with any other existing streets. All street names should be kept as short as possible to permit signs to be no longer than 30 inches.
(3) Street name suffixes shall be applied as follows:
(a) Street and road. These suffixes shall be used for roads running either east and west or north and south.
(b) Avenue. A road running north to south.
(c) Lane. A road running northeast to southwest.
(d) Drive. A road running northwest to southeast.
(e) Trail. A road that wanders in different directions.
(f) Circle. All cul-de-sacs.
(g) Court. A road with 2 openings that enter and exit onto the same road.
(h) Place. All private roads.
(i) Parkway. Limited access roads that are divided by a median.
(j) Boulevard. A local street divided by a median.
(4) The prefix of all cul-de-sacs shall, whenever possible, match the prefix of the intersecting road.
(5) When, due to topography, offsets cause streets to become interrupted, sixteenth-line, quarter-line and section line streets shall retain the same name on either side of the irregularities.
(6) Subdivision names shall not duplicate, be the same in spelling or alike in pronunciation with any existing subdivision names, and shall be subject to the approval of the City Engineer.
(D) Design standards.
(1) The developer shall be responsible for dedication of all right-of-way widths according to the major street plan.
(2) A tangent at least 100 feet long shall be placed between reverse curves on arterial and collector streets; on all other streets the tangent shall be at least 50 feet long.
(3) Alleys are permitted in commercial and industrial districts when no other reasonable provision is made for service access, such as off-street loading, unloading, and parking consistent with the requirements set forth in the zoning ordinance.
(4) Alleys are permitted in residential districts when conditions warrant an alternative means of access. However, an alley shall never be proposed as a primary form of access.
(5) Dead-end alleys shall be avoided, but if unavoidable, they shall be provided with a turnaround as determined by the City Engineer.
(6) Whenever an existing half-street is adjacent to a tract being subdivided, the other half of the street shall be platted within the subdivision.
(7) A subdivision may show ½ of a street along adjoining property which has not been subdivided, but no building permit may be issued for any lot abutting on the undedicated half-street.
(8) Cul-de-sacs and eyebrows will be allowed where they are necessary for the reasonable development of a subdivision. The maximum length of a cul-de-sac should not exceed 500 feet measured along the centerline, between the radius point of the turnaround and the right-of-way line of the abutting street. The maximum length of a cul-de-sac may be extended where no other practical alternative is available for the reasonable development of a subdivision. Temporary turnarounds may also be required by the City Engineer on dead-end streets that will eventually be continued. No more than 50 dwellings will be allowed on a cul-de-sac of 500 feet in length.
(9) Where street jogs are unavoidable, the right-of-way offset shall not be less than 100 feet.
(10) Streets shall be laid out in such a manner that they intersect, as nearly as possible, at right angles and no street shall intersect any other street at less than 80 degrees.
(11) Private streets or roads, if allowed, shall meet the following requirements:
(a) Private streets shall be paved by the developer to a width of not less than 23 feet measured from back-of-curb to back-of-curb, and maintained in a passable condition. Greater width may be required when necessary. All private streets/roads must provide a minimum height clearance of 14' 6".
(b) The property owner(s) or agent shall place street signs on all private streets or compensate the city to place street signs for private streets at the locations the City Engineer deems necessary for the safety and convenience of the public. Street signs shall meet all current MUTCD standards and are subject to the approval of the City Engineer.
(c) Buildings located adjacent to a private street or road shall be addressed in accordance with City of Vermillion Code of Ordinances.
(d) Building setback requirements shall meet the current zoning ordinance.
(e) Private streets or roads shall be indicated on the plat as a mutual access easement and shall not be included as part of any required lot area or setback.
(f) Any private street or road approved by the city shall provide permanent unobstructed access to the area it serves. The erecting of any structure within or adjacent to the private street or road which would in any way interfere with the use of such private street or road by the public or any governmental agency will not be permitted.
(g) Any plat presented for city approval which shows a private street or road as a means of access shall include language in the owner’s certificate providing for a mutual access easement.
(h) The city will not subsequently accept a private street or road for dedication unless and until it is compliant with the city standards, providing adequate rights-of-way without requiring variances for setbacks.
(12) When the traffic impact of 1 or more proposed property developments indicates that the public safety can be better served by the use of mutual access easements, the following requirements shall be observed.
(a) Any mutual access easement accepted by the city must provide for perpetual unobstructed access to the area it serves, and shall prohibit the erection of any structure within or adjacent to the access area which would interfere with the use of the mutual access easement by the public or any governmental agency.
(b) Mutual access easements shall be indicated on the plat.
(c) Any plat presented for city approval which shows a mutual access easement as a means of access shall provide language in the owner’s certificate reserving the mutual access easement as a perpetual unobstructed access easement.
(d) Mutual access easement areas shall be paved by the developer and maintained in passable condition. Designs for mutual access easements must be approved by the City Engineer. An easement area maintenance agreement among property owners who will use the mutual access easement for access shall be filed with the plat. The agreement shall describe the legal responsibilities for the repair and maintenance of the easement area and the required signs.
(13) The developer/owner may be required to place traffic control signs, or striping, on mutual access easements or to compensate the city for traffic control signs, placement, for mutual access easements, and striping at the locations the City Engineer deems necessary for the safety and convenience of the public. Traffic control signs and striping shall be approved by the City Engineer and in accordance with the current MUTCD standards.
(14) Sidewalks shall be constructed in accordance with Chapter 96 of the City of Vermillion’s Code of Ordinances.
(15) The developer shall submit a geotechnical report to the city. The study shall include soil boring information; laboratory results for moisture content; dry density and Atterberg limits; opinions and recommendations regarding utility excavation procedures, site preparation and excavation/filling procedures; comments regarding constructability and final performance of the project, and recommendation for Portland cement pavement sections. Recommendations for private streets may include an asphalt pavement section equivalent to the recommended Portland cement pavement section.
(16) The roadway shall consist of Portland cement pavement. At no point will the pavement section be less than 6 inches on local streets and 8 inches on collector or arterial streets. The base course shall be, at a minimum, 6 inches thick for either a local, collector or arterial street.
DESIGN ELEMENTS | ARTERIALS | COLLECTORS | LOCAL | FRONTAGE ROAD | PRIVATE ROAD EASEMENT | CUL-DE-SAC | ALLEY |
RIGHT-OF-WAY (FT) | 80-100 | 80 | 66-80 | 50 | 50-100 | 66-80 (SEE NOTE 2) | 20 |
DESIGN SPEED (MPH) | 50 | 50 | 25 | 25 | 25 | 25 | 25 |
PARKING ALLOWED | NONE | SEE NOTE 1 | SEE NOTE 1 | SEE NOTE 1 | SEE NOTE 1 | SEE NOTE 1 | NONE |
Note:
1. On-street parking will be determined based on zoning and neighborhood characteristics.
2. Minimum radius right-of-way of 55 feet.
(E) Access to streets and roads.
(1) Access to streets and roads.
(a) Street access.
1. Permit. Before any new driveway is connected to a street or an existing driveway approach is modified, a permit shall be obtained from the city. The permit shall be signed by the property owner or owner representative.
2. Specifications. All driveways shall be constructed according to the current details and specifications on file with the City Engineer. The City Engineer, if necessary, may vary them, as long as the public's safety, street maintenance and traffic capacity are not compromised.
3. Widths.
a. Residential and commercial uses.
i. The maximum width shall be 36 feet, except as follows:
(i) For attached single-family homes (townhouses) and attached two-family dwellings (duplexes) that have garages less than 16 feet from each other the access at the street shall be a shared access between the townhouses, or duplexes, and the width of the shared access shall be no more than 48 feet. If the garages are 16 feet, or more, from each other, then the street access may not be shared and the maximum width shall be 36 feet per street access.
ii. The distance shall be measured at the property line and does not include the taper lengths, or radii, at the street.
b. Industrial uses.
i. The maximum width shall be 50 feet. This distance shall be measured at the property line and does not include the taper lengths, or radii, at the street.
4. Number and location of access points.
a. Local streets.
i. Some properties fronting these roads may be required to have shared access points with the adjacent lots. Access shall be determined by the City Engineer. At no point shall the access be wider than that mentioned in division (E)(1)(a)3.
ii. Interior and corner lots.
(i) One access point shall be permitted per frontages less than 200 feet in length.
(ii) Two access points shall be permitted per frontages 200 feet long but less than 400 feet in length.
(iii) Three access points shall be permitted per frontages 400 feet or longer in length.
(iv) Access points located on the same frontage may not be closer than 85 feet from each other (measured from the edge of proposed driveway).
(v) When multiple access points are permitted, they should be located on the frontage with the necessary length.
(vi) Access points shall be at least 40 feet from the right-of-way of the cross street to the closest edge of the driveway access at the property line.
b. Collector streets.
i. Access to collector streets shall be limited and strictly enforced. In some instances, access from these streets may not be allowed. Properties fronting these roads may be required to have shared access points with adjacent lots, limited movement driveways, frontage roads, or backage roads. Access shall be determined by the City Engineer. At no point shall the access be wider that that mentioned in division (E)(1)(a)3.
ii. Interior lots (lots with 1 frontage).
(i) One access point shall be permitted per frontages less than 200 feet in length.
(ii) Two access points shall be permitted per frontages 200 feet long but less than 500 feet in length.
(iii) Three access points shall be permitted per frontages 500 feet or longer in length.
(iv) Access points located on the same frontage may not be closer than 85 feet from each other (measured from the edge of proposed driveway).
(v) Access points shall be at least 60 feet from the right-of-way of the cross street to the closest edge of the driveway access at the property line.
iii. Corner lots (lots with 2 or more frontages).
(i) Access to the collector street will not be allowed if access is available from a local street.
(ii) Access from the local street shall follow the requirements for that classification.
(iii) When a lot fronts a collector street on both sides the access point shall only be allowed from the collector street with the longest frontage.
(iv) When multiple access points are permitted, they should be located on the frontage with the necessary length.
c. Arterial streets.
i. Access to arterial streets shall be limited and strictly enforced. In some instances, access from these streets may not be allowed. Properties fronting these roads may be required to have shared access points with adjacent lots, limited movement driveways, frontage roads, or backage roads. Access shall be determined by the City Engineer. At no point shall the access be wider that that mentioned in division (E)(1)(a)3.
ii. Interior lots (lots with 1 frontage).
(i) One access point shall be permitted per frontages less than 200 feet in length.
(ii) Two access points shall be permitted per frontages 200 feet long but less than 500 feet in length.
(iii) Three access points shall be permitted per frontages 500 feet or longer in length.
(iv) Access points located on the same frontage may not be closer than 85 feet from each other (measured from the edge of proposed driveway).
(v) Access points shall be at least 100 feet from the right-of-way of the cross street to the closest edge of the driveway access at the property line.
iii. Corner lots (lots with 2 or more frontages).
(i) Access to the arterial street will not be allowed if access is available from a local or collector street.
(ii) Access from the local or collector street shall follow the requirements for that classification.
(iii) When a lot fronts an arterial street on both sides the access point shall only be allowed from the collector street with the longest frontage.
(iv) When multiple access points are permitted, they should be located on the frontage with the necessary length.
d. Streets within the state's jurisdiction.
i. An access permit from the State of South Dakota shall be obtained prior to obtaining one from the city.
ii. In addition to any State of South Dakota requirements for the access point, the applicant shall also meet the city requirements for specifications, access widths, and number and location of access points.
(Ord. 1251, passed 4-18-2011; Am. Ord. 1278, passed 5-21-2012; Am. Ord. 1288, passed 10-1-2012; Am. Ord. 1369, passed 5-21-2018)