HomeMy WebLinkAboutCC Resolution 8360 (St. Vincents Topographic Maps)RESOLUTION NO. 8 3 6 0
A RESOLUTION OF THE SAN RAFAEL CITY COUNCIL
APPROVING A $6,000 CONTRACT WITH TOWILL, INC
TO PREPARE ST. VINCENTS/SILVEIRA TOPOGRAPHIC BASE MAPS
WHEREAS, the City Council approved the St. Vincents/Silveira Opportunities and
Constraints Analysis Work Program on March 18, 1991, which included having
Towill, Inc. prepare base maps; and
WHEREAS, base maps must be prepared for the St. Vincents and Silveira properties
immediately in order to conduct study analysis; and
WHEREAS, Towill, Inc. has prepared consistently high quality base maps for land
within City limits and has stated they will immediately prepare St. Vincents and
Silveira base maps.
NOW THEREFORE BE IT RESOLVED, the City Council hereby approves an agreemei
with Towill, Inc to prepare topographic and aerial base maps as identified in Exhibit.A
I, JEANNE M. LEONCINI, Berk of the City of San Rafael, hereby certify that the
foregoing resolution was duly and regularly introduced and adopted at a regular
meeting of the Council of said City on Monday, the 1st of April, 1991, by the following
vote, to wit:
AYES: COUNCILMEMBERS: Boro, Breiner, Shippey, Thayer & Mayor Mulryan
NOES: COUNCILMEMBERS: None
ABSENT: COUNCILMEMBERS: None
A• `�-'
JE M. LEONCINI, City Clerk
301 MISSION STREET, SUITE 300 SAN FRANCISCO, CA 94105
�' o W i I I ■ in �+■� TELEPHONE (415) 243-4384 FAX (415) 243-8264
PROFESSIONAL SURVEYING AND PHOTOGRAMMETRIC ENGINEERING
March 22, 1991
Ms. Jean Freitas
City of San Rafael
Planning Department
1400 Fifth Avenue
San Rafael CA 94902
Re: Photogramnetric Services
for St. Vincents Property and the Silveira Ranch
Our File No. 2700-50
Dear Ms. Freitas:
In response to your request, we submit the following proposal to perform
services on subject project.
SCOPE OF WORK
1. Aerial Photography
When notified of the authorization to proceed, we will obtain new black
and white vertical aerial photography using a Wild RC20 nominal six-inch
(152mm) focal length camera with forward image motion compensation,
automatic exposure, vacuum pressure, and true plane platen. The
photography will be flown at an altitude of 12,000 feet above mean
terrain (nominal scale 1"=2000'). There will be one flight line with 3
exposures total.
2. Photogramnetry
a. Photo Control
Upon completion of the photographic mission, we will extrapolate
image control from the USGS quadrangle "San Rafael" relating to like
images on the aerial photography thus achieving a minimum of six (6)
control positions per stereo model. We will then digitize these
positions from the quad map thus achieving horizontal and vertical
coordinates (based on the accuracy of the quad map) for each of
these image points.
,0I 1•r `� �
I iouuill. inch
Ms. Jean Freitas
City of San Rafael -2- March 22, 1991
SCOPE OF WORK - Photogrammetry (continued)
b. Orthophoto Preparation - 1"=400'
When the method of establishing photo control has been completed, we
will prepare orthophotos from the 1:24,000 scale stereo photography
using a Wild ORI orthophotoscope. The orthophoto maps will show the
California Coordinate ticks, redrafted USGS quad contours and
elevations incorporated with the city -provided 100 -scale topography,
and the three major property lines as provided by the city. It will
consist of one sheet, 36"x38", screened on mylar. See attached map
for compilation limits and proposed sheet layout.
In addition to the 400 -scale orthophoto-contour map, we will prepare
an 8J"x11" glossy photo of the properties per the city's cropping
requirements.
Finally, we will enlarge a portion of the orthophoto map (no
contours) to four 1"=100' screened mylar sheets. This final
reproduction will be a 20.OX diameter enlargement from the original
aerial negative scale and will not meet the same photographic
resolution quality as the 400 -scale orthophoto map.
C. Accuracies
Since the controlling of the orthophoto maps is based upon enlarging
a USGS quad map, the accuracies cannot be expected to meet the
standard specifications.
ITEMS OF DELIVERY
1. Two (2) sets of contact prints (9"x9") of the aerial photography.
2. One (1) orthophoto-contour map screened on mylar at the scale of 1"=400'
with twenty -foot (20') contours.
3. One (1) set of screened mylar enlargements (1"=100') of a portion of the
400 -scale orthophoto map.
4. One (1) 8J"xll" glossy print of the aerial photography.
I iauuitt. inc
Ms. Jean Freitas
City of San Rafael -3- March 22, 1991
TIME SCHEDULE
Weather permitting, it is anticipated that aerial photography will be
completed within one week after notice to proceed. Final orthophoto maps will
be delivered within thirty (30) days from aerial photography.
FEE SCHEDULE
Our lump sum fee for the above defined work and delivery items will be
$6,000.00.
We appreciate the opportunity to submit our proposal and look forward to
working with you on this project. If you have any questions, or need
additional information, please contact me. If you are in agreement with our
proposal, we are prepared to proceed immediately upon your authorization.
Very truly yours,
I )
TOWILL, 'INC.
at hard S. Samp e
Vice President
GSS:cj
APPROVED AND ACCEPTED:
CITY OF SAN RAFAEL
Lawrence E. Mulryan, Mayor
ATTEST:
J e a nh a M Le nci niC l erk
Y
DATED: April 1, 1991
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