The Cecil Whig. [volume] (Elkton, Md.) 1841-current, 1870-04-30

the Masonry. PIng, Woodwork and Grading
according TO the following plan:
SPECIFICATIONS fer Bridge across tie month
of Scotchman's Greek, in tie First District
Of Cecil county, Maryiand.
PILES.The Piles to he of white oak chestnut. not
less than six inches long inside the back at small end
They To he thoroughly driven 10 the satisfaction of
the County Commissioners. These piles in each bent
except the two bents either side of the channr-hcy
to have four piles in each bent Six bents i'll the deep
est water, to he supplied with spur shores, well driven
and strongly bottled to the outside piles of each bent
with scveiciglh % screw bolts. Eight bcnts 10 have
braces. The caps cords loorbcams, and in general.
all other parts of III" bridge where oak is specially
ordered i'll the bill of merchandise, be of the best
quality of white pine.
The Caps be each l3 feet lorg with the excrp-
ton of the two either side Of the channel which
be p feet long: all but be 10 l. inches and
they to he II II inches. 10 be mortise, to receive
lemons made in heads of piles inches long, inches
high. inches broad, to which they to he pinned
The Stringers the bridge to he laid break
joint. Where the ends of the stringers meet Il cap
they to lap by each Other inches except the
outside rows, where they to extend end in
of cap. The outside strngers tn b" bocd to every cap
with ve-eighth e. inch rag bolt. The insd. string
to be bsltel 10 every second cap.
The PlankinS on Bridge to ha of two and ahaf (2laj
inch white pine not exceeding foot in width spiked
down securely to the stringers with two siX-inch cut
spikes at each end of each plank and tn.
second intermediate stringer.
The Posts Of the railing he inches. extending
feet inches above the roadway Of bridge and alyed
on the outside Stringers secured to the same with five
eighth q y inch bolt, with cast head and washer An
inch pine board twelve inches wide to be let into the
posts the inside. midway between the roadway and
top of the posts inch rail 10 top posts
All details not particularly specified here. TO he
carried out in similar manner. and in all respects
equally well in the Bohemia Bridge across the
Bohemia river.
The Abutments 10 he of Port Deposit stone The one
the south end Of the bridge to foundation of
twcntyse,r riiing driven t" hard bottom: The one at
the north rnl IF the bridg" to rest earth oul-
t Each autlncnt To have face wall IL feet long
y feet thick the base; at the top be 10 feet long
feet thick Wing walls 10 BE- l. feet long feet thick
Guard walls 10 he Il feet long, IL inches thick and 3
foot above the roadway, covered with inch white pine
boards ploughcd and groov.d. One foot of the face
of the wall 10 he laid in cement; the remainder be-
laid with and the whole pointed with cement.
There is 10 be bank of earth gravel each end Of
the bridge of about 10 feet in length 20 feet wide top
and brought six inches above the level nt the roadway
allow settling. The depth of il is to be ~ feet The
arth O gravel for both embankments Is to be taken
from the south side of the creek.
The piles when driven in the mud shall he driven until
they go than six inches at the last blow of the
hammer. When they driven i'll hard bottom they
shall r driven until they 90 than three inches
at the last blow. The hammer to he used to be of the
ordinary size used for driving such piling and he
waited to the ordinary height.