§ 157.051 STANDARDS APPLICABLE TO ALL DISTRICTS.
   (A)   Performance standards.
   (1)   Noise.
         (a)   No uses or activities shall create noise levels for more than five minutes in any hour that exceed those shown on the following table.
Maximum Noise Levels
Zoning classification
Maximum Noise Level (dBA)
Maximum nighttime noise level (dBA) 9:00 p.m. to 7:00 a.m.
At property line
At residential district boundary
At residential district boundary
RS, RS-1
65
65
50
R-1, R-2, R-3, R-4
50
C-, C-2, C-3, C-4   
65
60
50
C-5, I-1, I-2, I-3
70
60
50
Mixed use
65
60
50
Public/institutional
65
60
50
 
         (b)   Noise that is produced for no more than a cumulative period of five minutes in any hour may exceed the above standards by a maximum of five dBA, except between the hours of 9:00 p.m. to 7:00 a.m.
         (c)   Noise that is produced for no more than a cumulative period of one minute in any hour may exceed the above standard by ten dBA, except between the hours of 9:00 a.m. and 7:00 a.m..
         (d)   Mechanical and electrical equipment shall provide adequate shielding and baffling so that noise levels from such equipment will not exceed the above noise levels.
         (e)   Noise shall be measured with a sound level meter that meets the standards of the American National Standards Institute. Noise levels shall be measured in decibels on a sound level meter using the A-weighted filter network (dBA). Calibration checks of the instrument shall be made at the time any noise measurement is made.
         (f)   Occasional sounds generated by public safety vehicles, tornado warning systems, railroad equipment, agricultural equipment, and similar activities are exempt from these standards.
      (2)   Odor. Except in the RS District, no continuous, frequent, or repetitive odors that are perceptible on or beyond adjacent property lines are prohibited. An odor detected no more than a total of 15 minutes in any one day shall not be deemed to be continuous, frequent, or repetitive.
      (3)   Sewage disposal. Plans and specifications for proposed sewage disposal facilities shall be submitted to and a written approval obtained from the Indiana Department of Environmental Management or other agency having jurisdiction over such system.
      (4)   Storm drainage. For all development other than a one- or two-family dwelling, plans and specifications for proposed storm drainage facilities shall be certified by a registered engineer and submitted to and written approval obtained from the Board of Public Works and Safety.
   (B)   Use of lots. In any district, no more than one primary structure and its customary accessory uses shall be located on a single lot; except that primary structures designed and platted as a single unit under single ownership and control, such as a multifamily residential project or commercial center are permitted on a single lot.
   (C)   Access and frontage. Every building hereafter erected or moved shall be located on a lot with frontage and access on a public street, or with frontage and access to an approved private street or access easement, and all buildings shall be so located on lots as to provide for safe and convenient access, on-site circulation, fire protection, and required off-street parking.
   (D)   Storage. No portion of any required yard shall be used for the permanent storage of motor vehicles, trailers, airplanes, boats or parts thereof or of any rubbish, garbage, junk, tent or building materials, except during construction and in accordance with the terms of this chapter. Permanent storage for purpose of this section shall be construed as the presence of such storage for a period of 48 consecutive hours in any one-week period.
   (E)   Intersection visibility.  
      (1)   A clear line of sight between a height of 2.5 feet and eight feet above the centerline grades shall be maintained within 15 feet of all rights-of-way.
      (2)   At intersecting streets and drives nothing shall be erected, placed, planted or allowed to grow in such a manner as to impede vision within the "visibility triangle" (See figure on following page). The "visibility triangle" is hereby established as follows:
Sight Distance Restrictions at Intersections
         (a)   For corner lots, the triangle is defined as the area formed by connecting a point 20 feet from the intersection of the right-of-way lines.
         (b)   When a driveway or alley intersects with a local or collector street, the visibility triangle is formed by the center lines of the driveway or alley and the street and a line connecting points 18 feet for driveways and alleys and 75 feet for local and collector streets.
         (c)   When a driveway or alley intersects with an arterial street, the visibility triangle is formed by the center lines of driveways, alleys and streets and a line connecting points 18 feet for driveways and alleys and 160 feet for arterial streets. (See figure on following page.)
Sight Triangle for Driveway for Alley
      (3)   Notwithstanding (E)(1), above, plantings, structures and other improvements may be permitted within the visibility triangle if the city engineer makes a determination that such improvement will not impede visibility.
      (4)   Plantings, structures and other improvements within the visibility triangle shall be reviewed and approved by the City Engineer where road intersections or driveway/alley access points occur at angles other than 90o or where the slope of the cross street exceeds 3%.
      (5)   The provisions of this section shall not apply to official warning signs or signals necessary to the public safety.
(Ord. 17, 2006, passed 11-27-2006)