The building is to be crowned by a roof of corrugated iron, supported in
the manner shown in the accompanying plan and sections. The uprights are
to be of selected squared lumber 1 foot square, each in a single piece,
the lower ends planted at least 3 feet below the original ground level,
and to be braced and tied to each other, as shown in the plan. The tie
pieces are to be of selected squared lumber, 4 inches by 6 inches in
cross section. The roof is to be framed and braced in the ordinary
manner, and this framing is to extend beyond the outer wall 6 feet. The
covering is to be a good quality of corrugated iron roofing, securely
fastened to the framework, and painted with three good coats of the best
quality of roof paint. The whole to be constructed and executed, in the
best and most workmanlike manner, of good materials throughout, and to
be of a strength sufficient to withstand the windstorms to which it may
be subjected.
III. PLANS AND SECTIONS--PRESERVATION OF THE CASA GRANDE RUIN, ARIZONA.
SCALE OF ALL THE PLANS AND SECTIONS. 0.1 INCH = 1 FOOT
Plans and sections accompanying specifications are as follows:
Plan showing tie-rods, limits of work, and lines of ground sections.
[Plate CXVII of this report.]
Three east-and-west sections to show estimated amount of excavation
necessary. [Plate CXVIII of this report.]
Three north-and-south sections to show estimated amount of excavation
necessary. [Plate CXIX of this report.]