Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1890-04-17
PROPOSALS
PROPOSALS
FOR
BTidQE 5upErEtTuEtuTH
AND
M SONRY,

OFFICE OF COUNTY CONTROLLER,
PITTSBURG, PA, April 15 1890 {
Sealed proposals will be received until
o'clock P. M, WEDNESDAY,. April %. 1890
at this office for the superstructure and mas
onry of two wrought-iron, pin-connected truss
and four plate-girde- highway bridges, and for
connected truss bridge; also for the construc
ton of two stone-arch bridges, located as fol.
lows:
No. l. Over Montour run. Skaters.
Through plate-girder bridge, 4612 feet clear
span. 5O feet extreme length; depth of girder,
go inches live load l. 700 pounds per lineal foot;
static load, $50 pounds per lineal foot. To have
3intermediate 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 Gu feet center
high and divided into six panels; to have YER
ticle end posts; live load, ZOO pounds per lineal
foot; static load, $50 pounds per lineal foot
No. 4. Over Big Sewickley creek, Bradford's
farm (skew bridge).
Low truss bridge, II feet center to center of
end pins, trusses each feet high and divided
live load. LOO pounds per lineal foot; static
load $50 pounds per lneal foot.
No. 3. Over MOntour run, Beaver road cross
ing (skew bridget
span, 6O1 feet extreme length; depth of girder
60 inches: live load LOO pounds per lineal foot;
static load, $50 pounds per lineal foot. This
bridge to have intermediate floor beams.
No. 6. Over Robinsons run, Willow Grove sta
Plate-girder bridge, 81 feet clear span, s5 feet
extreme length; depth OF girder, % Inches; live
load, 700 pounds per liDeal foot: static load,
$50 pounds per lineal foot.
No. z. Over Flaughertys rum E. Worth's.
Through plate-girder bridge. so feet clear
span. SSH feet extreme @ length; depth OF girder.
80 inches; live lead, l. 200 pounds per lneal foot
static load, $50 pounds per lineal foot, This
bridge to have intermediate floor beams.
No. 8. Over Burns run. Gumbert's.
Stone-arch bridge, l6 feet span. semi-circular
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 % teet
and divided into IA panels. Clear width of
roadway, 20 feet. Live load. 2, 400 pounds per
lineal foot; static load, I,5O0 pounds per lineal
foot
over Watson run).
Clear width of all bridges. unless otherwise
designated, will be II feet.
Bridge contractors should examine the sites
for themselves to ascertain their peculiarities.
the extent of false work required and facilities
for transportation, ETC.. before bidding.
MASONRY.
The approximate quantity of masonry is
about 1900 cubic yards and must be of good
quality and conform to specifications.
Bids to be by tue cubic yard in place, price to
lncluue e&caVaClOn, pumping. snoring, coner-
dams. etc.
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." or bridge Masonry"
as the case may be- each proposal to be accom-
panied by bidders bond, with two sufficient
sureties, in the sum of not less than 80 per cent
of the whole amount of the bid. Bidders must
bid for each bridge separately, and may, i'll ad-
dition, bid for the lot as a whole.
Bids for bridge No. 8 must be addressed in
separate envelopes to the Commissioners of
Westmoreland 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.
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.
Plans may be seen and specifications and
forms of bond obtained at the office uf Charles
Davis, County Engineer, after Thursday. April
L. 1890. JOSIAH SPEER,
apl5SD County Controller.