A. 
Permissible dimensions, slope and detail shall be as indicated on drawings and as further specified in the following subsections.
B. 
Conditions of Approval of New Driveways.
1. 
Driveways directly giving access onto arterials may be denied if alternate access is available.
2. 
All abandoned driveway areas on any street shall be removed and the curbing and sidewalk, or shoulders and ditch section shall be properly restored.
3. 
Maintenance of driveway approaches and all sidewalks shall be the responsibility of the owner whose property they serve.
4. 
For a commercial establishment on a shoulder and ditch type road, where development of adjoining lands and highway traffic assume rural characteristics as determined by the engineer, the following rule shall apply: The entire frontage area shall be graded and paved to the property line with asphalt, Portland cement concrete, or permeable pavement. Surface drainage shall be intercepted and carried in a closed system. Access control to the property by means of a six-inch curbing will be required.
C. 
Location of New Driveways.
1. 
A residential driveway is one that normally services one parcel. A driveway serving more than one parcel shall be classed as a commercial driveway or a private street.
2. 
On frontage 75 feet or less, no more than one driveway shall be constructed. On frontages over 75 feet, two or more driveways may be permitted, subject to approval by the engineer.
3. 
No portion of driveway width shall be allowed within five feet of extensions of property lines in residential areas or nine feet in commercial areas except that driveways may utilize full width of narrow access right-of-way to property if this provides the only access to the lot being served.
4. 
The maximum change in driveway grade shall be:
On crest vertical curves: eight percent per 10 feet;
On sag vertical curves: 12 inches per 10 feet.
D. 
Existing driveways may be reconstructed as they exist provided such reconstruction is compatible with the reconstructed road.
E. 
Notwithstanding any other provisions, driveways shall not be allowed where they are determined by the engineer to create a hazard or impede the operation of traffic on the roadway.
F. 
Two-track driveways are allowed in residential settings.
(Ord. 483 § 7.1, 1980; Ord. 1198 § 11, 2017)
A. 
Rock retaining walls may be used for the containment of cut or fill embankments up to a maximum height of eight feet in stable soil conditions which will result in no significant foundation settlement or outward thrust upon the walls. For heights over eight feet or when soil is unstable, a structural wall of acceptable design shall be used.
B. 
Materials.
1. 
Size categories shall include:
Two-man rocks (300 to 600 pounds), 13 feet in least dimension;
Three-man rocks (800 to 1,200 pounds), 16 feet in least dimension; and
Four-man rocks shall be used for bottom course rock in all rock retaining walls over six feet in height.
2. 
The rock material shall be as nearly rectangular as possible. No stone shall be used which does not extend through the wall. The rock material shall be hard, sound, durable and free from weathered portions, seams, cracks and other defects. The rock density shall be a minimum of 160 pounds per cubic foot.
C. 
The retaining wall shall be started by excavating a trench, not less than six inches or more than one foot in depth below subgrade in excavation sections or below the existing ground level in embankment sections.
D. 
Rock selection and placement shall be such that there will be minimum voids and, in the exposed face of the wall, no open voids over six inches across in any direction. The final course shall have continuous appearance and be placed to minimize erosion of the backfill material. The larger rocks shall be placed at the base of the rockery so that the wall will be stable and have a stable appearance. The rocks shall be placed in a manner such that the longitudinal axis of the rock shall be at right angles or perpendicular to the rockery face. The rocks shall have all inclining faces sloping to the back of the rockery. Each course of rocks shall be seated as tightly and evenly as possible on the course beneath. After setting each course of rock, all voids between the rocks shall be chinked on the back with quarry rock to eliminate any void sufficient to pass a two-inch square probe.
E. 
The wall backfill shall consist of quarry spalls with a maximum size of four inches and a minimum size of two inches. This material shall be placed to an eight-inch minimum thickness between the entire wall and the cut or fill material. The backfill material shall be placed in lifts to an elevation approximately six inches below the top of each course of rocks as they are placed, until the uppermost course is placed. Any backfill material on the bearing surface of one rock course shall be removed before setting the next course.
F. 
When a sidewalk is to be built over a rock retaining wall, the top of the wall shall be sealed and leveled with a cap constructed of cement concrete, Class C, in accordance with the applicable provisions of Section 6-02 of the State Standard Specifications, but with reduced water content resulting in slump of not over two inches.
(Ord. 483 § 7.2, 1980)
A. 
Side slopes shall be constructed no steeper than 1-1/2:1 on fill slopes and 1:1 on cut slopes. Flatter slopes are preferred and may be required by the engineer if there are indications that the earth is unstable and subject to sliding or sloughing.
B. 
Slide slopes shall be stabilized by grass sod or seeding, or by other planting or surfacing materials acceptable to the engineer.
C. 
Furnish city easements for side slopes in the form prescribed by the city.
(Ord. 483 § 7.3, 1980)
A. 
Monuments shall be placed at all street intersections including intersections with cul-de-sacs, and at all points of curvature and points of tangency. All monuments shall be set in concrete and be provided with cast-iron frames and covers.
B. 
All existing survey control monuments which are disturbed, lost, or destroyed during surveying or building shall be replaced by the responsible surveyor or builder at the developer's expense.
C. 
Survey control monuments shall be placed or replaced in accordance with recognized good practice in land surveying.
(Ord. 483 § 7.5, 1980)