Evening star. [volume] (Washington, D.C.) 1854-1972, 1889-05-23
THE NEW WATER MAINS.
Preparing to Receive Bids for Opening
the Trenches.

the Trenches.
| HOW THE CONTRACTS WILL BE AwARDED-sPEc-
| IFIcATIoSs FOR EXECUTION OF THE WORRIES
EXTENT AND THE MANNER IN WHICH IT MUST
BE DONE.
Col. John NJ Wilson, engineer in charge Of
the extension Of the water supply of the Dis
I trict has issued advertisements for bids and
prepared specifications for opening the
trenches in which to lay the new mains, and
for furnishing lead and jute packing and Joint
| ers, bids for which will be opened at noon June
20. The work to be done will consist in ex-
| cavating trench for 10000 lineal feet more
or less, of 4S-inch main; {, 400 lineal feet more
| or less, of 30-inch main, and 400 lineal feet of
| 24-inch main. and furnishing and delivering at
the aqueduct Office 100 tons of lead T. 600 pounds
| Of jute yarn. and patent jointers The
| quantity OF material to be excavated will be
| about 80, 900 cubic yards.
THE BIG TRENCH.
The trench to be excavated for the 4s-inch
| main will extend from the distributing reser-
| voir along the Conduit and Canal roads to
| Foundry branch, and from 37th and VI streets,
| along Nj street to New Hampshire avenue along
New Hampshire avenue TO street along r
i
| ~ feet deep, and at least feet wide at the
| bottom and feet at the surface of the ground.
THE TRENCH FOR THE 30-IScH MAIN
will be excayated from New Jersey avenue and
B streets northwest, across the capitol grounds
| to East Capitol street, and along East Capitol
| street to 18th street east. 1t will be 6L feet
| deep, and at least 81 feet wide at the bottom
and So feet at the surface.
The trench for the 24-inch main will be ex-
~ r9Ti H., 4 -. -
| streets northwest, and will be 5 feet IL inches
| deep, feet wide at the bottom and AZ feet at
| the surface.
Col. Wilson reserves the right to increase or
diminish these dimensions whenever il appears
| necessary. The contractor will not be required
| to make the excavation for bell holes.
THE MIDDLE LINE OF THE TRENCH
will be laid off on the grounds by agents of the
| government, and suitably marked at intervals
| not exceeding 100 feet. The contractor will
preserve these marks for distance of at least
| 500 feet IN advance of the excavation. No eX-
cavation below the prescribed limits will be
| paid for. and the engineer in charge will have
| the power to have filled in any unauthorized
excavation without further compensation. The
pavement will be neatly cut along the edges of
the trench and the pieces will be piled by the
contractor at such places opposite the trench as
| the engineer may direct.
THE MATERIAL EXCAvATED
will be deposited on that side of the trench de-
signated by the engineer. When it is depos-
tied on the foot-waiks at least one-half of the
foot-way must be left open for travel. 4 car
riage-way will be left open at street intersec-
lions, and the contractor will provide suitable
bridges at his own expand to open the trench
at such intersections. The contractor is en-
joined to take special care not to break any
sewer. water, or gas-pipe, nor their house con-
nections. Should any break be made he must
repair it Immediately, at his own expense. to
the satisfaction of the engineer, and for that
especial purpose he will employ a competent
plumber along the line. All pipe crossing the
trenches will be properly supported.
WORK TO BE BEGUN BEFORE AUGUST 26.
The excavation must be commenced on or
before August rs, 1899, and must progress at
the rate of 400 lineal feet day or less, as the
engineer may direct The United States re-
serves the right to change the date of commence
ment to later date in case there should be
| any unanticipated delay in the delivery of the
| pipe. This is done in order to inconvenience
| the public little practicable on account of
unnecessary openings The object of Col
Wilson is to have the trench stand open Just as
| short time possible, and the work will
progress at rate commensurate With the
ability to lay the pipe.
ROCK EXCAVATION.
| Proposals will be received at so much per
cubic yard for trenching, estimating upon
Sc, 800 cubic yards of materials other than rock,
| and about 1,500 yards of rock, and upon these
| quantities the estimate will be made in deter
| mining the award of the contract: but Col Viii
son states that it must be distinctly understood
| that the absolute quantity of rock is not now
| known and cannot be determined until the
| streets are opened. 1t has, for the purpose
of putting matters definite basis,
| been estimated at one-thirtieth of the entire
excavation. In blasting such rock as may be
| encountered reduced charges will be used, and
every precaution employed to prevent damage
| to surrounding property or existing pipe, and
| the right is reserved to regulate number, size
and direction of the holes, the kind of explo-
sives to be used and the method of tampIng
| employed.
TEN PER CENT RETAINED.
percentage of 10 per cent will be retained
| from each payment until the completion of the
contract. Reasonable grounds for supposing
| that any bidder is interested in more than one
| bid for the same item will cause the rejection
| of all bids in which he is interested. Bonds
will be required for the faithful performance
| of each contract, in a sum equal to one-fourth
of the amount to be paid under each contract,
and in the proposals the guarantors must justify
| in the following sums: For excavation. Sc, COO;
| for lead, $500; for jute, 900; for jointers,
500.
Washington Bidders.
At the government printing Office to-day,
Public Printer Palmer, Mr. Collins, the acting
chief clerk, and other officials were busy OPEN