City of Cupertino, Department of Public Works
Design Standards for improvement plans

 
Plan and profile sheets
 
I. Plan (see last page)
 
(A) 24" x 36" plan and single profile paper
 
(B) Title block shall show tract or project number and Name, Engineer's signature
and R.E. number on each sheet, date plans prepared
 
(C) Noth Arrow
 
(D) Scale (horizontal and vertical)
 
(E) Street names, street considered plus side street
 
(F) Sheet number and number of sheets in the project
 
(G) The plans shall show the following:
(01) Property line
(02) Lot lines
(03) Lot numbers
(04) Sidewalks, curbs and gutters, T.O.C. elevations and stationing at B.C.R., E.C.R., B.C., E.C.,
grade break, B.V.C., E.V.C., where the curb grade is different then centerline grade, the curb grade
should be indicated along the curb line. The drop around returns should be no more than 1.00 foot
(05) Indicate top curb grade, when centerline is curbed to make certain the grade on the outside
of the curve at the face of curb is at least 0.5 %
(06) Centerline of street to be drawn parallel to length of paper, when possible
(07) Dimensions of R/W and improvement width at least once each sheet
(08) Location of existing improvements (shown by dashed lines)
(09) Length and location of transitions in curb and gutter, etc
(10) Location of proposed and existing storm and sanitary sewer lines and manholes, drop inlets, etc
(11) Location of closest existing fire hydrants and electroliers
(12) Cross gutters, redwood headers, barricades
(13) Electroliers and conduit locations
(14) Street and traffic signs
(15) Monuments
 
II. Profile
 
(A) Scale
Vertical - not more than five feet per inch
Horizontal - not more than fifty feet per inch
 
(B) Profile of existing street or original ground at centerline
 
(C) Profile of existing ground at curb line an area, where transverse street section is proposed
 
(D) Proposed centerline profile
(01) Centerline of smaller streets to intersect larger streets at 1/4/ point of parabolic section
(02) Stationing and elevations on centerline at B.C., E.C., B.V.C., (1/4 pts. of 100 feet V.C.),
E.V.C., curb returns, grade breaks, and at least every 300 feet. Elevation of valley gutter
on centerline and intersection with other flow lines
(03) Fifty foot V.C., where grade change is greater, than 0.75%, and less, than 1.5 %,
for grade changes greater, than 1.5 %, use 100 foot V.C.
(04) No dips in street
(05) Minimum slope of 0.50%
(06) Show stationary equation at intersection of streets
(07) Minimum slope of 0.75% around Cul-de-sacks
(08) Minimum slope of 0.50% around returns
 
(E) Existing and proposed storm drain
(01) Kind of pipe and check load on pipe
(02) Indicate class of R.C.P., size slope, distance between manholes
(03) F.L. elevations at manholes (indicate "in" or "out" and which side of manhole: E, W, N or S)
(04) Show only F.L. of pipe
(05) Stationing of manholes (300 feet minimum spacing)
(06) Casing, if required
(a) Kind
(b) Size
(c) Length - Shoulder to shoulder plus feet at each end or as required by the County or State
(d) Wall thickness
(07) Storm drain laterals from D.I. to M.H., showing size of pipe, length, slope, inv. at D.I. and inv. at M.H.
(08) Where pipe sizes increase, match crown to crown
(09) Field check of existing F.L.
(10) Fits into master plan (oversizing, where required)
(11) At change in line or grade, drop across manholes should be sufficient to compensate for loss of head
(12) Correct size of pipe and slope - (Min. size of 12" R.C.P. and min. velocity of 3.0 ft/sec flowing full, but not under presure)
(13) Type of manhole when other, than Type I.
 
(F) Other existing or proposed underground facilities or utilities, that would affect
the design or construction of the improvements
(G) The profile of the water system shall be shown in all locations, where sanitary sewer has less,
than four feet of cover, or there potential grade conflicts exists