12.05.120 Additional stipulations.
A. Soil Boring Priority. Road cuts on collector streets having an average daily traffic exceeding 750 vehicles (ADT), and on all streets which have been paved within the five years previous to the permit date, shall not be authorized by the city engineer where geological conditions allow for push or boring techniques.
B. Samples for Testing. When the permit does not require materials testing, as stated in SCC 12.05.110(B), the city engineer may request and obtain materials samples in suitable quantities from the permittee for testing to determine compliance with specifications. Such costs shall be charged to the permittee by the city.
C. Site Conditions. The permittee shall conduct the project to conform with the following stipulations:
1. Rubber-tired equipment shall be operated on paved surfaces except that, when street pads, as defined in SCC 12.05.040, are employed to protect asphalt surfaces, the following shall apply:
a. Crawler equipment with street pads may be utilized with written permission of the city engineer;
b. Backhoes and similar equipment with pods shall utilize street pads as defined in SCC 12.05.040;
2. Site shall be maintained during the life of the permit in a clean and orderly condition;
3. Trenches across roadways shall be bridged by suitable plate, approved by the city engineer, whenever work is stopped overnight;
4. All signs temporarily moved shall be reinstalled and all signs damaged during construction shall be replaced. Arrangements may be made with the city engineer to have these replaced and the costs charged to the permittee by the city;
5. Prior to final inspection by the city engineer, the permittee shall clear pavement surfaces, dress shoulders, clean surfaces, and remove debris, garbage, unused native and manufactured materials and similar objects which are not an integral part of the rights-of-way, to the satisfaction of the city engineer.
D. New Road Dedicated to City. The top one-tenth foot of asphalt pavement of a road dedicated to the city shall have been paved no more than one year prior to the city’s unconditional acceptance of the road per SLDC 704.09. If the top one-tenth foot is older than one year, then the surface shall either receive a pavement rejuvenation treatment approved by the city within four months the city’s unconditional acceptance of the street or the top one-tenth foot shall be removed and replaced. In any event the surface of the pavement shall be thoroughly compacted, smooth, and true to grade and cross section, and free from ruts, humps, depressions, cracks, or irregularities. An acceptable surface shall comply with city requirements for new pavement.
E. Pipe Culvert Specifications. Culverts shall be corrugated metal pipe (CMP), 14 gauge preferred; with a minimum 15 inches diameter. Other materials, such as HDPE, PVC and concrete, may be acceptable but must be approved by the city engineer.
|
Culvert Diameter |
Minimum Length |
Maximum Length |
|---|---|---|
|
15 inches |
20 feet |
30 feet – residential |
|
18 inches |
20 feet |
40 feet – commercial |
|
24 inches |
20 feet |
40 feet – commercial |
|
Greater than 24 inches |
Subject to approval of the city engineer, but greater than 20 feet |
Subject to approval of city engineer |
1. Minimum six inches cover material is required over pipe.
2. Minimum one and one-half percent fall for drainage.
3. No headwalls are allowed; culverts must be placed at flow line of ditch (flared ends allowed).
4. Commercial driveways shall be constructed as approved by city engineer.
5. Owner is responsible for pipe culvert maintenance.
Any variances from the above specified will need engineering approval. Pipes shall be located in ditches such that the pipe does not create a dip relative to grades within 100 feet of the pipe. [Code 2006 § 7-15-12. Ord. 2008-05, 6-10-2008].