Question: Which ran longer Arizona Canal and Allegheny Portage Railroad

<P0-S0> The Oregon Portage Railroad was the first railroad in the U.S. state of Oregon. <P0-S1>  It originally ran for 4.5 mi , with an accompanying 7 mi of telegraph line, and was later extended to a length of 15 mi . <P0-S2>  The railroad was located on the south bank of the Cascades canal of the Columbia River. <P0-S3>  It ran from Tanner Creek (near where Bonneville Dam was later built) to the Cascade Locks, which were under construction in the later years of the railroad's operation. <P0-S4>  Although the Oregon Portage was the first railroad in Oregon, it was not the first along the Columbia River. <P0-S5>  Francis A. Chenoweth operated a rail line on the river's north bank in present-day Washington in 1851. <SEP> <P1-S0> Blair Gap, one of the gaps of the Allegheny is a water gap along the eastern face atop the Allegheny Ridge or Allegheny Front escarpment. <P1-S1>  Like other" 'gaps of the Allegheny' "the slopes of Blair Gap were amenable to foot travel, pack mules, and possibly wagons allowing Amerindians, and then, after about 1778-1780 settlers, to travel west into the relatively depopulated Ohio Country decades before the railroads were born and tied the country together with steel. <P1-S2>  Historically, the gap was used for the upper sections of the Allegheny Portage Railroad, which as was authorized by the enabling acts in 1824 of Pennsylvania's Main Line of Public Works as part of the Pennsylvania Canal System which originally envisioned linking Pittsburgh to Philadelphia by canals. <P1-S3>  In the early 1900s, US Route 22 followed alongside the watercourse through the gap. <SEP> <P2-S0> The Arizona Canal is a major canal in central Maricopa County that led to the founding of several communities, now among the wealthier neighborhoods of suburban Phoenix, in the late 1880s. <P2-S1>  Flood irrigation of residential yards is still common in these neighborhoods, using a system of lateral waterways connected via gates to the canal itself. <P2-S2>  Like most Valley canals, its banks are popular with joggers and bicyclists. <SEP> <P3-S0> The Allegheny Portage Railroad was the first railroad constructed through the Allegheny Mountains in central Pennsylvania, United States; it operated from 1834 to 1854 as the first transportation infrastructure through the gaps of the Allegheny that connected the midwest to the eastern seaboard across the barrier range of the Allegheny Front. <P3-S1>  Authorized as part of the Main Line of Public Works legislation in 1824, it was a series of ten inclines connecting to a branch of the Pennsylvania Canal at either end, approximately 36 mi long overall. <P3-S2>  It had five inclines on either side of the drainage divide running athwart the ridge line from Blair Gap through along the kinked saddle at the summit into Cresson, Pennsylvania. <P3-S3>  The Portage Railroad utilized cleverly designed wheeled barges to ride a narrow-gauge rail track with steam-powered stationary engines lifting the vehicles. <P3-S4>  Except for peak moments of severe storms, it was an all-weather, all-seasons operation. <P3-S5>  Along with the rest of the Main Works, it cut transport time from Philadelphia to the Ohio River from weeks to just 3–5 days. <P3-S6>  The roadbed of the railroad did not incline monotonically upwards, but rose in relatively long, saw-toothed stretches of slightly-sloped flat terrain suitable to animal powered towing, alternating with steep cable railway inclined planes using static steam engine powered windlasses, similar to mechanisms of modern ski lifts.