Is the map for the four acrs in digital format? It
would be nice to see these to compare them to the map
for the five El Paso/Ciudad Ju�rez arcs which you have
linked below.
I can't see them using "C" for anything other than
circumference, but of course that would be kind of
redundant to put that in there considering they have
provided the radius. So no idea otherwise.
--- "Lowell G. McManus" <
mcmanus71496@...> wrote:
> Michael Kaufman wrote:
>
> > 17.-??? MXUS (msg. 13937; how many are there?)
> > SO,
> > We can't put a firm number on it. Depends on 3
> > variables:
> > 1. Where DZLYTN falls. If there is a short LYTN
> we
> > have 18 not 17.
> > 2. Also, do we know 12 for BJNG? So it would be
> more
> > or less if not exactly 12.
> > 3. And how many more arcs for MXUS on the
> channelized
> > Rio Grande?
>
> I find that there are no less than nine arcs in the
> channelized segments of the
> Rio Grande portion of the MXUS boundary.
>
> The channel relocation maps accompanying and made a
> part of the 1970 MXUS treaty
> show four arcs with their geometric specifications
> (deg-min-sec of arc, length
> of radius, linear length, tangent, plus distance
> figures for "C," whatever that
> is). As I stated in message 13937, the largest of
> these is just above
> Hidalgo/Reynosa. The others three are in the
> vicinity of Presidio/Ojinaga (two
> above and one below). I can furnish specifications
> on request.
>
> There are five arcs specified in the "engineering
> considerations" annexed to the
> Chamizal Convention of 1963 that describe the
> channelization of 4.3 miles of the
> Rio Grande through El Paso/Ciudad Ju�rez. You can
> view this description in the
> left column of PDF page 7 of the Convention at
> http://tinyurl.com/3equm [heavy
> download]. Each of the major curves in the new
> channel as shown on the
> non-technical map at http://tinyurl.com/2n6gg is
> specified as an arc, even if
> not perfectly depicted as such on the map.
>
> Lowell G. McManus
> Leesville, Louisiana, USA
>
>
>
>
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