18R.08.140   Certificates - Final subdivision maps.
The following certificates shall be included upon all final subdivision maps filed with the city, as applicable:
   A.   City Clerk’s Certificate When Dedication of Real Property Not Made. When offer of dedication of real property to the city for street and/or public easement purposes is not made as part of the final map, the certificate shall read as follows:
   “I hereby certify that on the ..... day of ....., 20..., the City Council of the City of Chico officially approved this map, subject to the installation and completion of
      all required subdivision improvements (if applicable).
      ........................         ...............................................”
      Date                  City Clerk
   B.   City Clerk’s Certificate When Dedication of Real Property is Made. When an offer for the dedication of real property to the city for street and/or public utility easement purposes is made as part of the final map, the certificate shall read as follows:
   “I hereby certify that on the .... day of ....., 20.., the City Council of the City of Chico officially approved this map, subject to the installation and completion of all required subdivision improvements (if applicable), and accepted (describe area(s) of dedication) for dedication to the City of Chico on behalf of the public.
      .........................         ...............................................”
      Date                  City Clerk
   C.   City Manager’s Certificate When Dedication of Real Property is Made as Part of a Non-City Subdivision. When a final map is filed for a subdivision not within the city but which is adjacent to a city roadway, and an offer for the dedication of real property to the city for street and/or public utility easement purposes is made, the certificate shall read as follows:
   “I hereby certify that (describe area(s) of dedication), as shown hereon and herein offered for dedication to the City of Chico, is accepted by the undersigned officer on behalf of the City Council of the City of Chico pursuant to the authority conferred by Resolution No. 79 61-62 of the City Council of the City of Chico, adopted March 6, 1962, and that the grantee consents to the recordation thereof by its duly authorized officer.
      ......................            ..........................................”
      Date                  City Manager
(Res. No. 9 77-78 (part))
Table 1
HORIZONTAL ALIGNMENT CRITERIA
 
Type of Street
Arterial
Collector
Local
Minimum Design Speed (mph)
40
35
25
Minimum Curve Radius at Centerline
600'
450'
200'
Minimum Tangent between Reversing Curves
200'
150'
100'
Minimum Stopping Sight Distance
275'
240'
165'
 
Table 2
VERTICAL CURVE CRITERIA
 
Type of Street
Design Speed (mph)
Min. Length Vertical Curve
Min. Stopping Sight Distance
At Min. Stopping Crest V.C.- Max. Rate of Change- %/100'
Sight Distance Sag. V.C.- Max. Rate of Change- %/100'
Passing Sight Distance*
Arterial
40
200'
275'
1.80
1.80
1500'
Collector
35
150'
240'
2.50
2.20
1300'
Local
25
100'
165'
5.25
3.70
900'
 
   *Passing sight distance criteria do not apply to sag vertical curves. For design of crest vertical curves that meet passing sight distance criteria, refer to “Caltrans Highway Design Manual of Instructions” or “AASHO Policy on Geometric Design of Rural Highways.”
Table 3
RUNOFF COEFFICIENTS
Land Use
C
Landscaped area
0.25
Residential
   Rural (up to 2 units/acre)
0.35
   Low-density (2+ to 6 units/acre)
0.50
   Medium-density (6+ to 14 units/acre)
0.60
   High-density (14+ and up)
0.75
Public
0.40 - 0.70
Schools, Hospitals
0.35 - 0.70
Commercial
0.70 - 0.90
Industrial
0.70 - 0.90
Highway
0.80 - 0.90
 
Table 4: To print a PDF copy of this Table, click TABLE 4
Table 5
DESIGN CRITERIA FOR SANITARY SEWERS
ZONING
DESIGN CRITERIA
ZONING
DESIGN CRITERIA
RESIDENTIAL
   Domestic flow
80 gpcd (average)
   Infiltration
650 gad
   Peak flow factor
1.5 - 3.0 (see Table 6)
1.   Rural Density
   Units/acre
2
   People/unit
3.6
   Peak design flow
[(80)(3)(2)(3.6)] + 650 = 2,378
Use 2,400 gad
2.   Low Density (R-1)
   Units/acre
5
   People/unit
3.6
   Peak design flow
[(80)(3)(5)(3.6)] + 650 = 4,970
Use 5,000 gad
3.   Medium Density (R-2)
   Units/acre
13
   People/unit
2.3
   Peak design flow
[(80)(3)(13)(2.3)] + 650 = 7,826
Use 7,800 gad
4.   High Density (R-3)
   Units/acre
24
   People/unit
2.0
   Peak design flow
[(80)(3)(24)(2.0)] + 650 = 12,170
Use 12,200 gad
COMMERCIAL/INDUSTRIAL
   Average flow
1,500 gad
   Peak flow
3,000 gad
   gpcd = gallons per capita per day
   gad = gallons per acre per day
 
Table 6