Inbox - jackbarry99@gmail.com - Gmail

Inbox - jackbarry99@gmail.com - Gmail:

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When does the new, tabbed Gmail come?  I cannot wait.
jb

253 Parker Ave, between Geary and Anza.

If S.F. grants this new building the requested "sidewalk encroachment, 5 feet,  the upslope will  be

32 degrees..... 10% steeper than Duncan Street, as seen below. Without the Encroachment:

37 Degrees.

These two pics show  Duncan Street, in Noe Valley, between Diamond and Douglass Streets,  a 28 degree slope....

If S.F.  does not grant a "5 foot sidewalk easement to  the new "'three unit condo building at 253 Parker, the resultant  up-slope driveway will be a 37 Degree grade...  37 Degrees!  ..making the garage only accessible  to "mountain goats".

A beautiful example of  "Sidewalk Encroachment" now possible via the DPW  "Green Sidewalks"  efforts.

New "Double Encroachment" In the name of landscaping….. I would do this in a minute, on Parker. - jackbarry99@gmail.com - Gmail

New "Double Encroachment" : A Greener San Francisco Sidewalk….


This gorgeous  "sidewalk encroachment"  is at 1430 Ninth Avenue, steps south of  Ninth and Judah.

Note that there is a "two square walking space", between the landscaping, and still one more square beyond the landscaping, next to the curb,....for entry to parked cars.

Note that the landscaping  nearest to the house is the first like them on the block, from end to end.
It is hoped that other home owners will follow the lead of these  "home owner- artists."


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Construct a triangle with the angles A=90 B=59 C=31

Construct a triangle with the angles A=90 B=59 C=31:

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This 31 degree slope would be the result of getting a 5.5 foot sidewalk encroachment in the 22 foot sidewalk. (90% of all sidewalks in SF are 17 feet wide, or less.)
It would be, then, equal to the two most well known  "Steepest Streets" in SF...: Filbert at Leavenworth and  22nd Street at  Vicksburg on Potrero Hill.

If the City refuses, the resultant  35 degee slope will be 13 % steeper, and too steep to be safe, and usable.
  The result:  the occupant's cars will be parked on the street,  negating the reason for having garages.

It is surprising that the SF DPW ignores these points and just says "NO.  We simply have a total policy of not approving  an encroachment, if it would be the first one on that side of the block, no matter how wide the sidewalk.  < Across from 253 Parker is 252 Parker which DOES have such an encroachment, but the DPW  ignores that, for no understandable reason.)

Another view of a 35 degree slope, as DPW wants for 253 Parker Avenue, S.F.

Here is how to construct, on your computer a precise, 35 degree down grade, the complement to Angle B, below...which is, itself, 55 degrees..That 35 degree downslope is what DPW wants to be built on Parker Ave. Who would use it?

Mathinary on Android?

Download it for free at Android Market.

Construct a triangle with the angles A=90 B=55 C=35

Thanks to the website,  "Mathinary"...for this calculation and image.

So, from B to C is the downslope that DPW is saying has to be the 35 degree slope into the garage.

Picture doing that daily, or, more daunting, picture backing up, to come out to the street.