CITY OF ANAHEIM
A. SOILS REPORTS
A Soils engineering report shall be prepared for each hillside grading project by a licensed engineer. The soil engineering report shall include but not limited to, specifying areas, bedrock, location, composition and characteristics of the native soil. Certification as to the stability of the existing cut or fill, certification as to the stability of the proposed slopes, results of shearing strength tests and recommendations for the placing of additional fills or performing additional excavations.
See Appendix A for guidelines of:
B. DESIGN CRITERIA
a. Flatland Grading
b. Hillside Grading
Maximum driveway slopes:
1. Whenever access is taken from a street or driveway to an off-street parking area serving four (4) or less dwelling units, the driveway or other vehicular access way shall have a maximum grade of plus fourteen percent (+14%) or minus six percent (-6%) measured from the property line along the driveway centerline, for a distance not less than eighteen feet (18').
2. Whenever access is taken from a street or driveway to an off-street parking area serving industrial, commercial or professional use, public or community facilities, or five (5) or more dwelling units shall have the maximum grade as shown on Standard Detail No. 402.
3. Ramps or driveways providing vehicular access within interior of an off-street parking area located beyond eighteen feet (18') from the ultimate right-of-way line of a street or driveway shall have a maximum grade of plus or minimum twenty percent (20%). When such ramp or driveway slopes exceed plus or minus ten percent (10%), the ramp or driveway design shall include transitions not less than eight feet (8') in length having a slope equal to one-half the ramp slope. When parking provided on ramp, the maximum slope shall not exceed six percent (6%).
a. Provide set backs (See Appendix B) as outlined in Anaheim Municipal Code, Title 17.
b. If slope is less than 30 feet in height, slope can be constructed within 15 feet to a building by providing a retaining wall at a minimum 5 feet from the building. (See Exhibit "E").
c. Drainage shall be directed away from the face of fill and cut slopes and into approved drainage structures. The face of cut and fill slopes shall also be manufactured to control against erosion. The protection for slopes shall be installed after completion of the rough grading.
d. Provide terrace drains and down drains for all cut and fill slopes higher than 30 feet as outlined in Title 17 (See Appendix B) and Standard Detail Nos. 326 , 327 and 330 . Down drain shall be constructed at 200 foot intervals.
e. Concentrated flow discharged down a slope shall be contained within an opened paved drain or a storm drain system.
f. The surface of all cut and fill slopes more than 5 feet in eight shall be permanently protected against damage by erosion as shown on landscape and irrigation plans approved by Planning Department.
g. French drain to be installed at the base of all slopes adjacent to arterial street and all slopes greater than 30 feet in height to prevent water from leaching from toe of slope. (See Standard Detail #334).
h. Recommendations in the soils report, Title 17 and City Council Policy #211 (See Appendix C) shall be incorporated into the design of any slopes.
a. All walls must conform to Section 17.06.048 of Title 17 and Section 188.8.131.52. The maximum height shall be 10 feet and walls shall be screened by landscaping.
b. All permits for construction of retaining walls shall be issued by the Building Department. The Grading plan shall identify the retaining walls and heights with a construction note indicating "separate permit required".
c. All Grading plans with retaining walls shall have the following notice on the plan sheets where the walls are shown:
d. All Grading Plan with crib walls must include the details and specifications for the construction of the crib walls.
e. Crib wall calculations must be submitted for review prior to approval of the Grading Plan.
f. Crib walls must be landscaped and constructed with permanent irrigation facilities approved by the Planning Department.
g. If a wall is to be constructed adjacent to the property line, the setbacks shall conform to those shown on Exhibit "C".
h. All walls supporting slopes over five feet high, from tope of wall to top of slope, shall be constructed with a concrete drainage device at the back of the wall as shown on Exhibit "E".
i. Concentrated flows along walls shall be contained in a concrete drainage device as shown on Exhibit "E".
C. PLAN PREPARATION