Pittsburg dispatch. [volume] (Pittsburg [Pa.]) 1880-1923, 1890-04-16
PROPOSALS
PROPOSALS
FOR
BTi1gE 6upETGtTuCtuTE
AND
M 4 SO NRY.

| OFFICE OF COUNTY CONTROLLER
| PITTSBURG PA. April 15 1880.
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-
| tion OF two srone-areh bridges, located as fol-
| lows:
No. l. Over Montour run. Skaters.
| Through plate-girder bridge, 4613 feet clear
| span. 81 feet extreme length; depth of girder,
60 inches: live load LOO pounds per lineal foot;
static load. $50 pounds per lineal foot To have
| intermediate floor beams.
| No. 2. Over Toms run, at Dixmont.
Stone-arch bridge, 20 feet span. semi-circular
arch.
| (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 ver-
ticle end posts; live load LOO 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
into panels; truss to have vertical end posts;
live load. ], 700 pounds per lineal foot; static
load. $50 pounds per lineal foot
No. s. Over Montour run. Beaver road cross
Through plate-girder bridge. 81 feet clear
span, 6011 feet extreme length; depth of girder,
90 inches: live load 100 pounds per lineal foot;
bridge to have intermediate floor beams.
No. 6. Over Robinsons run, Willow GroveSta-
tion. Bridge on grade).
Plate-girder bridge, 80 feet clear span, 35 feet
extreme length; depth of girder, % inches; live
load. 700 pounds per lineal foot: static load,
$50 pounds per lineal foot.
No. Z. over Flaughertys run. E. Worth's.
Through plate-girder bridge. so feet clear
span, 53M feet extreme length: depth OF girder,
60 inches; live load ], 700 pounds per lineal foot
static load $40 pounds per lineal foot. This
~ob bo- = Sir,rar fItofa Annr haa
No. s. Over Burns run, GumDert's.
Stone-arch bridge, IL feet span. semi-circular
arch.
channel. Ohio river, at Neville Island. High
truss bridge of three spans each 1874 feet center
to center of end pins; height of truss % feet,
roadway, 20 feet. Live load. 24OO pounds per
lineal foot; static load, 1.50J pounds per lineal
foot
tAlso for repairs to masonry OF bridge No.
over Watson rum.
Clear width of all bridges. unless otherwise
designated will be IL feet.
Bridge contractors should examine the sites
for themselves to ascertain their pecuiarities.
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 the cubic yard in place, price to
include excavation, pumping, snoring, Golfer
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 so per cent
fthe whole amount of the bid Bidders must
bid for each bridge separately. and may, in adj
dtion. bid for the lot as whole.
Bids for bridge No. 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 of Charles
Davis, County Engineer, after Thursday. April
II. 1880 JOSIAH SPEER,
apl55D County Controller.