Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1889-04-19
.ROPOSALS-
FOR
BRIDGE SUPERSTURCTURE
AsoNRY. SON


OFFICE OF COUNTY CONTROLLER,
PITTsBURG, PA, April l6. 1883. )
Sealed proposals will be received until 3
o'clock P. M, Wednesday, April "a 1889. at the
office of the County Controller, for the super
structure and masonry Of one wrought iron
pin-connected truss and six plate-girder high.
way bridges. and for construction Of one stone
arch bridge, located as follows.
No. !. Over Miller's run, at Collins Mill
Low truss bridge, So feet center to center Of
end pins, trusses each feet high and divided
into panels; to have vertical end posts. Live
load, LOO pounds per lineal foot; static load,
$40 pounds per lineal foot
No 2 Over Streets run. Hays station (skew
Plate-girder bridge, 3s feet clear span, Al feet
extreme length. Depth of girder, 4S inches.
Live Load, @ LOO pounds per lineal Il foot; static
have 10 floor beams spaced feet u inches
center to center.
Present superstructure to be removed by.
and to be the property OF. contractor Tor new
superstructure; this to be removed as soon as
notice is given by masonry contractor tnat he
is ready to proceed with foundations.
No. 9. Over Bailey's run, Robert Balley's
Piate-girder bridge, 2s feet clear span, 81 feet
extreme length. Depth Of grder, Is inches.
Live load, LOO pounds per lineal foot; static
load, 6z5 pounds per lineal foot.
No. 4. Over Montour run, at Scotts.
Plate-girder budge, AZ feet clear span, 50 feet
extreme length; Depth Of girder, 80 inches.
load $50 pounds per lIneal foot. This bridge to-
have three intermediate floor beams.
No. 5. Over Plum creek, Armstrong; run.
Plate-girder bridge, 30 feet clear span, 80 feet
extreme length. Depth of girder, q inches.
Live load, LOO pounds per Iineat foot;- static
load, $50 pounds per nneaI foot.
No. 6 Over Saw Mill run, at Fair Haven
Piate-g1rder bridge 30 feet clear span, 80 feet
extreme length. Depth Of girder. g inches.
Live load, LOO pounds per iineal foot; static
MOL Over Little SeWickley creek. at A
Stone arch bridge, 30 feet span. segmsntal
Nos Over Potato Garden run. Marshaps
old mill.
Piate-girder bridge, q feet clear span, 81 feet
Live load, !, Zoo pounds per lineal foot; static
load, 625 pounds per hneal foot.
(Also for repairs to masonry of bridges over
Lowries run, at Courtney's mill, and Piney
Clear width of all bridges TO be II feet. All
bridges to have wrought iron floor beams;
these beams Except where sizes are shown on
live load of at least ten tons. All girder bridges
to have (unless otherwise specifed) two inter-
mediate transverse floor beams. Plank floor
ing on girders (unless otherwise specifed) to
fit down close on top hanges or girder, and to
project outside of fanges inches. All bridge
timber (except wheel-guards) to be sound
white oak; wheel-guards to be sound straight
Deck-girder bridges to be provided with
heavy wrought-iron protection railing Rail-
ing stanchions to be securely connected with
iron girder, and not attached to wooden floor,
ALI iron to be good bridge iron and to eoms
ply with specifications. Workmanship to be
frst-class and conform to specifications.
Bridge contractors should examine the sites
for themselves 30 ascertain their peculiarities,
the extent of false work required and facilities
for transportation, etc., before bidding.
MASONRY.
The approximate quantity of masonry is
about 2400 cubic yards. and must be of good
quality and conform to specifications.
Bids to be by the cubic yard in place, price to
include excavation, pumping. snoring. Golfer
dams, etc.
Stone to be sound and durable, and to be ap-
proved by the County Engineer.
Contractors must visit the sites of proposed
bridges before submitting bid
The county will furnish the cement loaded
on cars at any railroad depot in the cities Of
Pittsburg or Allegheny, the contractor to pay
the freight
Commissioners and indorsed Proposals for
Bridge Superstructure," or Bridge Masonry"
as the case may be; each proposal to be ac-
companied by a bidders bond, with two sufi-
cient sureties, in the sum of not less than so
per cent Of the whole amount Of the bid.
Bidders must bid for each bridge separately,
and may, in addition, bid for the lot as q
whole.
The right to reject any or all bids is re-
served.
The party to whom the contract is awarded,
shall give bond with two sufficient sureties, in
double the amount of the contract, for the
faithful performance of the said contract
Specifications and forms Of bond can be
obtained at the office of Chas. Davis ESQ.,,
County Engineer, after Thursday. April Isl
1889. O. JOSIAH SF.ER.
County Controller.
OFFICE OF THE COUNTY CONTROLLER
PITTsBURG, PA, April 16 1889. I e..
NOTICE TO CEMENT DEALERS
~ Sealed proposals viii be received at this
Office until o'clock P. NJ. WEDNESDAY,
AprilA 1889, for furnishing the cement neces-
sary for the construction and repair Of county
Structures for the ensuing season.