Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1890-04-22
PROPOSALS
PROPOSALS
FOR
BTi1gH 6upETGtTUEtuTE
M SONRY.

| OFFICE OF COUNTY CONTROLLER
| PITTsBURG, Pa, April l5 1890.
| o'clock P. M, WEDNESDAY. April %. 1890
| at this office for the superstructure and mas
| onry of two wrought-iron, pin-connected truss
| and tour plate-girder highway bridges, and for
connected truss bridge; also for the construc.
| tion of two stone-arch bridges, located as fol
| lows:
No. l. Over Montour run. Skaters.
Through plate-girder bridge, 461@ feet clear
span. 50 feet extreme length; depth of girder,
go inches: live load. 700 pounds per lneal foot;
static load $50 pounds per lineal foot. To have
3 intermediate floor beams.
No. 2 Over Toms run, at Dixmont.
Stone-arch bridge, 20 feet span, semi-circular
arch.
No. g. Over Poketos creek, Dougherty's Mill
(skew bridge); low truss bridge. go feet center
to center of end pins; two trusses, each feet
high and divided into six panels; to have ver-
ticle end posts; live load 700 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. 1,70O pounds per lineal foot; static
load. $50 pounds per lineal foot
No. 5. Over MOntour run, Beaver road cross
ing (skew bridge).
span 60H feet extreme length; depth of grder
go inches: live load, 200 pounds per lineal foot;
static load, $50 pounds per lneal foot. This
bridge to have intermediate floor beams.
No, g. Over Robinsons run, Willow Grove s ia
tion. Bridge on gradel.
Plate-girder bridge. 80 feet clear span, 35 feet
extreme length; depth OF girder. % Inches; live
load, L. 700 pounds per lineal foot: static load,
$50 pounds per lineal foot
No. 7. Over Flaughertys run, E. Worth's.
Through plate-girder bridge. so feet clear
60 inches live load, L 700 pounds per lineal foot
static load, $50 pounds per lineal foot. This
bridge to have 5intermedlate floor beams.
No. g. Over Burns run, Gumberts.
Stone-arch bridge, l6 feet span. semi-circular
arch.
No. 0. Superstructure of bridge over Back
channel. Ohio river, at Neville Island. High
to center of end pins; height of truss Is feet,
and divided into IA panels Clear width of
roadway, 20 feet. Live load. 2,4O0 pounds per
lineal foot; static load, 1,5O0 pounds per lineal
foot.
tAlso for repairs to masonry OF bridge No. 1
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, aasoSRT ets;i SeaSre bidding.
The approximate quantity of masonry is
about 1900 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.
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, in ad-
dirion, bid for the lot as whole.
Bids for bridge No. 8 must be addressed in
separate envelopes to the Commissioners of
WesrmOreland 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 of Charles
II. 1890. JOSIAH SPEER,
apl5tD County Controller.