Evening star. [volume] (Washington, D.C.) 1854-1972, 1874-09-10
moved, and then the patching must recommence

moved, and then the patching must recOmmence
soon after.
To cover the pavement with a waterproof
wearing surface, which shah he put on 50 ~
to level up the irregularities and afford smooth
carrsgeway, is temporary expedient which
deserves consideration. Such a covering can
not prevent the decay of the wood beneath It.
although il may retard the process. Ii can only
be considered as q temporary relief, and the
cost as an outlay for no permanent improve
ment. As the carrisgeway under this treat
ment is guaranteed for three years, all repairs
within this period are provided for, and the
District is st no risk from failure OF the process
IN equal in preservative effect the anticipstiOnS
OF the contractor. The amount 20 be paid in
sufes good roadway on Pennsylvania avenue
ror three years.
An advantage OF this method is the compare
lively small immediate expense and ain upon
the revenues OF the District. The disadvantage
IS that OF other temporary expedients. The ex-
pendituTe is not permanent investment, but
sacrifice to expediency. However, in this
case, temporary expedient guarantees more
than the original investment has given, and
Tor less than one-third of the cash, utilizing
what ls Otherwise worthless of the originsI in
YestDent.
From the bids of this class have selected
that of j. w. Phillips, Abbot process, for the
1. The process has been already tried and
-ED.1
2. II is msde by the lowest responsible bidder
3. Upon thorough examination OF the process
believe that there are reasonable grounds for
anticipating satisfaction from its use.
There is no question, however, as to the de-
STABILITY OF making the repair of this pavement
complete and thorough by replacing the wooden
blocks with more durable material Stone or
concrete should be used. and for reasons which
1t is unnecessary TO give here in detail, think
that a durable sspha1tum pavement Is prefer
able to stone for Pennsylvania avenue.
From the bids of this class l have selected
that OF the North American Neuchatel Rock
Paving company, for the following reasons;
|. The pavement Is one Of the best of this
class, has been successfully used under various
conditions, and has qualities which are entirely
wanting In many OF the concrete pavements OF
competing bidders.
2. 1t is desired by the property holders on
the avenue, as will appear from the accompa-
nyiDg petition.
g. The terms of payment are such az TO make
this, in my opinion, the most advantageous
oter OF all those which present first class con-
crete pavement.
The terms are 65 cents per square yard pays-
Bile annually for ten years. The pavement 10
be LETT at the expiration OF the years in first
class condition. An analysis OF these terms
pavement, If paid upon completion of the work,
would be $3.50 per square yard. At the expira-
'ion OF ten years from completion of the work,
there will have been paid $3.50, a difference Of
wo dollars This difference may be considered
as expended In repairs, and repairs would
aatuTslly commence after two years use, the
TWO dollars are distributed over eight wears at
twenty-five cents per square yard. This is
about 81 per cent. annually upon the first-cost
ior maintaining in first class condition.
1twlll be observed that the first payment of e5
cents one year after the completion of the work
leaves balance of S3.S5 from the annual first
cost, which L. allowed to run for one year. and
he interest upon which at five per cent, equal
10 10 cents, virtually reduces the second pay
meDt from 65 cents to IS cents. On the third
gayment this reduction is less, and 50 on 70 the
iast.
This incidental advantage is worthy of note
The terms OF payment are easy, and there
tore we'll adapted 20 the condition aud resources
of the District. Payment is made in ten an
nual lnstallments, beginning one year from the
com petion Of the work.
4. To the terms of this bid, which l consider
very advantageous, the North American Neuch-
atel Rock Paving Company have bound them
selves by An additional clause OF tueir bid by
which they authorize the Commissioners 70 re
ain all that is now due them from the District
government tSl5,000 10 J000ol until .atis-
factory bOEd il given.