Idaho County free press. [volume] (Grangeville, Idaho Territory) 1886-current, 1893-08-18
AeMerai SPECIFICATIONS for the
State V0g0u ROGd.

Aenerai SPECIFICATIONS for the
State Vngou ROsA.
The road has been surveyed and
plainly marked by stakes and
blazes. The road must be built
exactly apon the line as surveyed.
All trees, stilmps and brush must
be cleared and grubbed, root and
branch, from the road for its full
width and all rocks must he thrown
out,
The road must be 10 feet wide in
all country that is level in cross
section, or where the slope in cross
section does not exceed ] in 4, and
where the pitch in cross-section is
greater than l in 4 and less than
II to l, or b to 4, the road must be
7 $40 feet wide on solid ground.
Earth cuts must not be sleeper
than to l, and earth fills not
sleeper than to 1.
Rock cuts must not be sleeper
than to l, and fills of rock not
sleeper than to l.
On hillsides the inside of the
road must be 4 inches lower than
the outside.
The bed of the road, except as
provided for on side hills, may be
constructed of earth, gravel, loose
rock, corduroy or cribbing. All
soft, wet, springy or porous ground
shall be ditched with bitches 2 feet
deep, "a feet wide on top and II
feet wide on the bottom on one or
both sides, as deemed necessary by
the Engineer in charge, and there
shall be free drainage to lower
ground.
Where corduroy is used it shall
be IL feet long and 6 inches in di-
ameter at the small end, of good
straight, sound timber laid close
together and bedded down on 3
stills not less than IL feet long and
8 inches in diameter at the small
end. The corduroy is to be COW
cred with earth or gravel 6 inches
deep.
Cribbing, where used, shall be of
good sound timber at least 8 in
ches in diameter at the small end
and not less than IL feet long
built solid and continuous by break
ing joints. The cribbing is to have
q batter of 3 inches to l foot. The
cribbing is to be united securely to
the bank by cross-ties of not less
than 8 inches average diameter,
notched securely to the stringcrs
ut intervals of not over s feet in
each COURSE and SO arranged that
no two cross-ties shall be one a.
bove another. The top line of
stringers are to be securely bolted
or pinned to the second line at in
tervals of not over 6 feet.
The designs of all bridges, piers
and abutments must be submitted
to the Engineer in charge for his
approval. The Engineer in charge
will furnish the contractor with
bridge designs, or assist him with
his designs if called upon.
No pitches or grades on line of
road shall exceed 10 per cent. or
20 inches per rod. Turns are to
be built of sufficient length and
width to easily accommodate q
twelve-horse team and three wa
CONS.
Where cribbing is used for abut-
ments or turns it shall be built as
directed above.
All turns must be built as near a
dead level as possible.
Turnouts shall be built wherever
necessary, at the discretion of the
Engineer, as shown by his specif-
cations on file.
Small bridges, under ~ feet
long, are to be built of sound tim
Der. The mud stills and cribbing
are to be not less than 10 inches in
diameter and II feet long, and the
stringers must be not less than -
inches in diameter where 4 are
used, and not less than 10 inches
in diameter where are used.
They are to be covered with 3-tnch
sawed flooring or 4-inch hewn tim
bcr, laid close together and secured
by guard rail of timber 6xS, hewn
ON the bottom and bolted or pinned
to the outside stringers.
Special notes and specifications
for the several districts, drawn up
by the Engineer, will be found in
the hands of the Commissioner of
each district, or a person desig-
mated by him. They are to be con-
sidered a part of these specifcat-
ions.
All work will be constructed
subjected to the direction and APP
proval of the Engineer in charge
and of the Commissioner of the
county,
STATE WAGON ROAD CoMMIs-
SION OF IDAHO,