. The Street railway journal . ELEVATED STRUCTURE, METROPOLITAN STREET RAILWAY inally operated by steam locomotives. The grade of 8| percent up through the tunnel was overcome by a grip car,which took the trailers from the steam locomotives. Atpresent this grade is easily surmounted by the electriccars, as the rails in the tunnel are always dry. Before thepresent year the electric cars coming up from the elevatedthrough the tunnel were unable to reach the main busi-ness section on Walnut Street and Grand Avenue and the district east of it. To overcome this difficulty a viaducthas been built in
. The Street railway journal . ELEVATED STRUCTURE, METROPOLITAN STREET RAILWAY inally operated by steam locomotives. The grade of 8| percent up through the tunnel was overcome by a grip car,which took the trailers from the steam locomotives. Atpresent this grade is easily surmounted by the electriccars, as the rails in the tunnel are always dry. Before thepresent year the electric cars coming up from the elevatedthrough the tunnel were unable to reach the main busi-ness section on Walnut Street and Grand Avenue and the district east of it. To overcome this difficulty a viaducthas been built in Eighth Street, bridging the valleythrough which run Delaware and Main Streets, as illus-trated in the profile already referred to. By means ofthis viaduct, the tunnel and the elevated over the lowlands, this route presents a much more level profile thanis presented by the Ninth Street line, which closely. f ) Strict TYPICAL BENT IN VIADUCT follows the surface, and is subject to such heavy ups anddowns that electric cars cannot be run on it. Toward thesouthern and eastern directions from the business center thecompanys cable and electric lines form a regular gridironthrough the residence districts, the grades being less severein this part of the city, so that cable or even electric linescan be operated with no difficulty. As noted above, the twenty lines of the Metropolitansystem have an aggregate length of about 160 miles, ofwhich about 120 miles are operated electrically, the re-maining 40 miles being cable driven. About 23 miles oflines formerly cable driven had been, previous to the pres-ent vear. changed over to the electric system, and duringlast summer more of the remaining 40 miles of cable roadwere being prepared for the change. Several new lines,with an aggregate length of about 15 miles, are also underconstruction at the present time. THE INDEPENDENCE LINE AND FA I
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
