Montgomery County sentinel. [volume] (Rockville, Md.) 1855-1974, 1915-02-12
n q a ID
SUPERINTENDENT REPORT.

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strongly support such action. 1t seems
impossible to establish the patrol svs.
TEN IN maintenance OF our stone roads.
and as with the large increase in their
mileage, their proper and economical
maintenance is matter of the greatest
moment, ana as 1t requires skill and ex-
periehce to do this work properly, rec
ohlLlehd that mobile force be organ
lzed TO do all extraordinary repair and
TAR surfacing OF our macadam roads,
such tOrce not to be confined to the lin
It's OF district, but to move from road
10 road as the surfacing is to be done,
nope the Board will give this recon-
mendation careful consideration, as /
am sure II put into effect 1t will be of
great public benefit.
The State Aid and County macadam
roads have begun to wear to the danger
point, and while much work was done
IN the past season in putting them into
condition and applying a bltuminous
surface, much remains to be done. and
lney VIII require constant attention.
Inc Following macadam roads were re-
paired and were treated with an appll-
cation Of one-half gallon of Tarvia b to
the square yard and covered with stone
chips:
So. Yds. Cost.
LaytOnsvllle ....... 1925 S 32S. IA
CONGRATULATIONS Mill. 1909 S22.61
Old Georgetown. $3.50. .24OOO 1871. AS
kenslngtOn-
| Chevy Chase ...... .14100 876.17
| Dlair ................ 1870 1855
| OolesNliIe flke ........ 725O 4O5.3
| I'm tho GAatfnn ~ hn
Kensington and Garrett Park an appli.
cation OF one-half gallon OF Trinidad
Asphalt Il applied hot was used to
overcome, If possible, the slippery sur
face tar would have made, and as the
grades (9,5%0) are extreme, the addi-
tional cost Is fully justified. There was
treated 5000 square yards at cost Of
$474 two APPLICATIONS of chips were
made and rolled in; this was done
rather late In the season, owing to the
delay OF the contractor In getting his
pressure distributor on the work. The
surface appears to be good, although II
was badly broken up by traction out
Mt passing over soon after ii was fin
| ished
A section of the LaytOnsville road,
approximately 1925 square yards, was
resurfaced, 1913 tons limestone being
used at cost Of $2,G43.46, and then
treated with Tarvia b, as above stated
The tar concrete placed the previous
year Is wearing well and cost OF re-
pairs have been practically nothing
The surface Is somewhat slippery In
places, and there are few spots ravel-
ing slightly. This can be remedled at
u small cost next year.
The final cost of this work was
$74O0.5S, reduction of $410.Ol below
the preliminary statement In my last
report, which was made up while the
accounts were In process of adjust
ment. Deducting the cost of moving
plant, this makes the cost of 3" tar
concrete surface, including building up
macadam foundation and shoulders,
$l.lS per square yard-the average cost
for this kind Of work In other parts of
the country runs from $1.25 to $3.50
per square yard.
approximately 1.3 miles of this road
is now in good condition, but the other
% miles are practically worn out.
| When we consider that under the traffic
strains on this road at least 10 Of an
inch of water-bOund macadam IL worn
away yearly and that the entire road
has been in use for six years, with only
slight repairs, except on the above sec
lions, the necessity for its immediate
reconstruction can be readily under
stood. Any reconstruction should take
into consideration the desirabilty Of
widening the road to 10 feet, as the
wheel traffic il not only heavy In ton
mage and large In volume, but the au-
tOmobile traffic is large. The present
width Of road IL dangerous In the ex-
IRENE, as either the automobiles or
wheel traffic have to leave the macadam
when passing. and there is always risk
of accident, especially on the tar con-
crete sections. where the shoulders cut
away. The cost of this reconstruction,
of course, depends upon the plan adopt
ed and available funds. estimate the
cheapest form, water-bOund macadam,
using about 1900 tons to the mile, will
cost about 5000 per mile and about
$500 per mile for the tar surface.
If the road is wldened two feet on
each side, with four inches OF rolled
stone, 1t will cost an additional 1920
NOR unIla This fhan will nacaSsita 70