Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1890-04-15
PROPOSALS
FOR
BFi1gE GupETGtFuEtuTB
AND
MASONRY.
OFFICE OF COUNTY CONTROLLER, .
PIrrrs nIrDn . nr1I la isNn K

h,
PITTsBURG. Pa. April Is, 1890
Sealed proposals will he received until
o'clock P. NJ, WEDNESDAY. April q. 1890
at this office for the suTerstructure and mas
onry of two wrought-iron, pin-1onnected truss
and four plate-girde= highway bridges. and for
superstI ucture only of one wrOughtiron, pin
connected truss bridge; also for the construc.
tion of two sIone-arch bridges, located as fol
lows:
No. l. Over Montour run, Skaters.
Through plate-girder bridge, 4612 feet clear
span. 81 feet extreme length; depin OF gIrder,
60 inches: live load. 700 pounds per lneal foot;
static load, 660 pounds per hneal foot. To have
intermediate floor beams.
No. 2. Over Toms run, at Dixmont.
Stone-arch bridge, 20 feet span, semi-circular
arch.
No. 8. Over Poketos creek. Dougherty's Mill
(skew bridge); low truss bridge. 80 feet center
TO center of end pins: two trusses, eacn feet
high and divided into six panels; to have YER
tcle end posts; live load 700 pounds per llneal
foot; static load, $50 pounds per lineal foot
No. l. Over Big Sewickley creek, Bradford's s
farm (skew bridge).
end pins. trusses each feet high and divided
into panels; truss to have vertical end posts;
live load. LOO pounds per lineal foot; static
load. $50 pounds per lineal foot.
No 5. Over MOntour run, Beaver road cross
ing (skew brdge).
Through plate-girder bridge. 81 feet clear
span, 6015 feet extreme length; depth nf girder.
80 inches live load, LOO pounds per lineal foot;
static load, $50 pounds per lineal foot. This
bridge to have 5intermediate floor beams.
No. 6. Over Robinsons run, Willow Grove Sta
ton. (Bridge on grade).
Piate-e1rder bridge, SO feet clear span. IS feet
extreme length; depth OF girder. 2S ILches; live
load. l, 700 pounds per lineal foot: static load,
$50 pounds per lineal foot.
No. Z. Over Flaugbertys run, E. Worth's.
Through plare-girder bridge. 90 feet clear
span, 531a feet extreme length: depth OF girder.
60 inches live load, 200 pounds per lineal foot;
static load, $50 pounds per lineal foot. This
n intermediate beams
No. s. Over Burns run. Gumberts.
Stone-arch bridge, l6 feet span. semi-circular
arch.
No g. Superstructure of bridge over Back
channel. Ohio river, at Neville Island. High
truss bridge of three spans. each 1874 feet center
to center of end pins; height of tluss 2S feet,
roadway, 20 feet. Live load. 400 pounds per
lineal foot; stalic load, 1,5OJ pounds per hneal
foot.
(AlSo for repairs to masonry OF bridge No.
over Watson run).
Clear width of all bridges, unless otherwise
designated, will be IL feet
Bridge contractors should examine the sites
for themselves to ascertain their peculiarities,
the extent of false work E-quired and facilities
for transportation. etc. lore bidding.
MASONRY.
The approximate quantity of masonry is
about 2, 900 cubic yards and must be OF good
quality and conform to specifications.
Bids to be by tue cubic yard in place. price to
include excavation, pumping. Snoring, Golfer
QaillS. eIC
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.
All bids must be addressed to the County
Commissioners, and indOrsed. proposals for
Bridge Superstructure." OF Bridge Masonry"
as the case may be, each proDnsal to be accom-
panied by bidders bond, with two sufficient
sureties in the sum of not less than 30 per cent
of the whole amount of the bid Bidders must
bid for each bridge separately. and may, in adj
dirion. bid for the lot as whole.
Bids for bridge No must be addressed in
separate envelopes to the Commissioners OF
Yves; mnreland and Allegheny counties, and
for bridge No. to the Commissioners of
Beaver and Allegheny counties.
The right to reject any or all bids is reserved.
1he party to whom the contract is awarded
shall give bond. with two sufficient suretes, in
double the amount of the contract for the
faithful performance of the said contract.
Plans may be seen and specifications and
forms of bond obtained at the office of Charles
Davis, County Engineer, after Thursday. April
II, 1890. JOSIAH SPEER,
apl55 County Controller.