(A) DW-01: general driveway standards. This driveway standards division (A) applies to the following zoning districts: PR; AG; IA; R1; R2; R3; UR; M1; M2; MP; UV; IS; NC; LC; GC; OC; CB; HC; EP IC; I1; I2; and HI. The intent of the driveway standards is to maximize safety for drivers. The following standards apply.
(1) Project applicability. Any new or expanded access to a public right-of-way intended for vehicular or farm equipment use shall be considered a driveway and shall meet the driveway standards of the unified development chapter.
(a) Residential limits. Access to four or more single-family lots or access to four or more dwelling sites within a manufactured home park shall be established as a public or private street and meet the applicable standards within the city’s construction standards.
(b) Non-residential limits. Access to four or more non-residential lots and that conveys over 2,000 vehicles on average per day shall be established as a public or private street and meet the applicable standards within the city’s construction standards.
(2) Cross-reference. Some regulations related to driveway standards are not included in this section. Please refer to the following documents for additional information and regulations.
(a) Street classification. The classification of streets shall be based on the Thoroughfare Plan.
(b) Construction standards. A driveway shall meet or exceed the city’s construction standards.
(3) Permits. A driveway permit shall be required for all driveway cuts onto public streets. The Board of Public Works reviews and issues the driveway permit in the city and shall be issued prior to the receipt of an improvement location permit.
(a) State and federal highways. A State Department of Transportation permit shall be required as a prerequisite to the driveway permit for all driveway cuts onto state or federal highways.
(b) County roads. Streets located outside the corporate limits of the city shall first get approval for driveway cuts from the County Planning and Zoning Department.
(4) Measurement rules.
(a) Between driveway and street intersection. The distance between a driveway and a street intersection shall be determined by measuring from the edge of pavement of the driveway to the nearest right-of-way line of the street that is parallel or mostly parallel to the driveway. This measurement shall be taken at the right-of-way line of the street to which the driveway gains access.
(b) Between driveways. The distance between driveways shall be determined by measuring from the edge of pavement of one driveway to the nearest edge of pavement of the other driveway at the right-of-way line of the street to which the driveways gain access.
(c) Driveway width. The width of a driveway shall be determined by measuring from one edge of the pavement to the other edge of the pavement at the right-of-way line of the street to which the driveway gains access.
(5) Positioning.
(a) Alignment. The centerline of two driveways accessing an arterial or collector street from opposite sides of the street shall align with each another, or shall meet the applicable driveway separation requirements.
(b) Clear vision of driveways. All driveways shall be located to reasonably prevent collisions with intersecting traffic.
1. Driveways gaining access to streets with a posted speed limit of 30 mph or less shall be located such that they are visible by a driver for at least 60 feet after cresting a hill, rounding a curve or passing any other physical barriers that prevent clear vision.
2. Driveways gaining access to streets with a posted speed limit of 35 mph to 45 mph shall be located such that they are visible by a driver for at least 120 feet after cresting a hill, rounding a curve or passing any other physical barriers that prevent clear vision.
3. Driveways gaining access to streets with a posted speed limit of 50 mph or higher shall be located such that they are visible by a driver for at least 200 feet after cresting a hill, rounding a curve, or passing any other physical barriers that prevent clear vision.
(c) Additional separation. Either the Zoning Administrator or the Engineer may deny a proposed driveway location or require additional separation due to other safety concerns, including, but not limited to, width of the public street, condition of the public street, lack of shoulder, natural or human-made hazards, adverse shadowing from natural or human-made features, and adverse drainage on or around the public street.
(6) Discretion. The Zoning Administrator, Engineer or Technical Review Committee may determine if public improvements such as acceleration lanes, deceleration lanes, passing blisters, wider shoulders or approaches, frontage streets or other improvements are necessary. See public improvement standards.
(Ord. 10-2010, passed - -2010, § 5.19)
(B) DW-02: agricultural driveway standards. This driveway standards division (B) applies to the following zoning districts: AG; and IA. The following standards apply.
(1) Separation.
(a) From street intersection. A driveway shall not be permitted to be installed within 100 feet of any intersecting street (see “A” in the image below).
(b) From another driveway. A driveway shall not be permitted to be installed within 60 feet of another driveway (see “B” in the image below).
(2) Width. A driveway shall not exceed 30 feet in width.
(3) Materials. Asphalt, concrete, pavers, other durable paving materials or gravel shall be acceptable driveway surface materials.
(4) Setback. All driveways shall be setback at least ten feet from side property lines.
(Ord. 10-2010, passed - -2010, § 5.20)
(C) DW-03: residential driveway standards. This driveway standards division (C) applies to the following zoning districts: R1; R2; R3; and UR. The following standards apply.
(1) Separation.
(a) From a street intersection. A driveway shall not be permitted to be installed:
1. Within 150 feet of any intersecting street if access is along an arterial or collector street;
2. Within 100 feet of any intersecting street if access is along a local street; and
3. If the lot is not large enough to achieve the required separation, then the driveway shall be installed at the location farthest from the intersection.
(b) Between driveways. Unless a shared driveway is established, two or more driveways shall not be permitted to be installed:
1. Within 100 feet of each another if access is along an arterial or collector street (see “B” in the image below).
2. Within 16 feet of one another if access is along a local street (see “B” in the image below).
(2) Width. A driveway shall be at least nine feet wide, but shall not exceed ten feet per lane and 20 feet overall.
(3) Materials. Driveways shall consist of asphalt, concrete, pavers or other durable paving material approved by the Zoning Administrator unless located within the extra-territorial jurisdiction of the city, where gravel shall be an acceptable driveway surface materials.
(4) Setback. Driveways shall be setback at least three feet from side property lines unless a shared driveway is established.
(5) Shared driveway.
(b) Width. Shared driveways shall not exceed 20 feet in width.
(Ord. 10-2010, passed - -2010, § 5.21)
(D) DW-04: non-residential driveway standards. This driveway standards division (D) applies to the following zoning districts: PR; M1; M2; MP; UV; IS; NC; LC; GC; OC; HC; EP; IC; I1; I2; AND HI. The following standards apply.
(1) Separation.
(a) From a street intersection. A driveway shall not be permitted to be installed:
1. Within 150 feet of any intersecting street if access is along an arterial or collector street (see “A” in the image below).
2. Within 100 feet of any intersecting street if access is along a local street (see “A” in the image below).
3. If the lot is not large enough to achieve the required separation, then the driveway shall be installed at the location farthest from the intersection.
4. Under no circumstances shall a driveway be permitted within 60 feet of any street intersection.
(b) Between driveways. Two or more driveways shall not be permitted to be installed:
1. Within 100 feet of one another if access is along an arterial or collector street (see “B” in the image below); and
2. Within 45 feet of one another if access is along a local street (see “B” in the image below).
(2) Width. A driveway shall be at least nine feet wide, but shall not exceed ten feet per lane and 30 feet in overall width.
(3) Materials. Driveways shall consist of asphalt, concrete or other non-porous material approved by the Zoning Administrator.
(4) Setback. Driveways shall be setback at least ten feet from side property lines, except when division (D)(1)(a)3. above applies.
(5) Curbs. When curbs are established along the subject property, the curb shall be extended to the property line from the edge of pavement for all driveways, following the edge of the driveway.
(Ord. 10-2010, passed - -2010, § 5.22)