Most emasculated route?

[Roadgeekteen]

I'd nominate US 99 and US 10 but they aren't nearly as much as others on this list.

US 99 does not count as it does not exist anymore.

[US71]

I'd nominate US 99 and US 10 but they aren't nearly as much as others on this list.

US 99 does not count as it does not exist anymore.

I'd say 99 qualifies since it no longer exists.

[Roadgeekteen]

I'd nominate US 99 and US 10 but they aren't nearly as much as others on this list.

US 99 does not count as it does not exist anymore.

I'd say 99 qualifies since it no longer exists.

I guess, but that kind of ruins the spirit of the thread.

[mrsman]

Historically, the longest route in CA to be truncated -- by the usual circumstance, commissioning of a US highway along the route -- would be the old SSR 7.  Its original length encompassed what was the 1950's-era full length of SSR (later CA) 107 (aka LRN 164) from the junction of Hawthorne Blvd. and Pacific Coast Highway in south Torrance, then segueing onto Sepulveda Blvd. (LRN 158) north through West Los Angeles and into the San Fernando Valley; multiplexing with SSR 118 (LRN 9) through San Fernando itself, then turning northwest onto Foothill Blvd. (LRN 157), which eventually merged into Sierra Highway (LRN 23), which it followed north on present CA 14 and US 395 to the Nevada state line (the last couple of miles north of SSR 89 were LRN 95).  SSR 7 reappeared near Hallelujah Junction NW of Reno, coming in on LRN 29 from the state line to LRN 73 at Johnstonville, and then following that route NE and north to the Oregon state line north of Alturas.  Of course, the entire route north of Inyokern is now US 395, with the portion from Sylmar to Inyokern (via Palmdale and Mojave) now CA 14.  The US 395 commissioning occurred ca. 1935; US 6 taking over the now-CA 14 segment occurred three years later.  And SSR 7 itself was rerouted at its southern end when LAX was expanded during and after WWII; instead of detouring through Inglewood and down Hawthorne Blvd.. Sepulveda Blvd. was extended south through Westchester, with Alternate US 101 (LRN 60) intersecting it at a 5-way intersection at Sepulveda and Imperial Highway, just south of LAX; this became the southern terminus of SSR 7 from 1945 to 1959, when LAX runways were lengthened to accommodate the 707's and DC-8's of the era.  That's when the cut-and-cover airport tunnels were constructed, and LRN 60/US 101A was rerouted through the tunnels, cutting off westward a few blocks north of Century Blvd., which was reconfigured as the main airport entrance.  SSR 7 was cut back to that point -- but only lasted another 5 years, as the system renumbering replaced it with I-405.  The number "7" was transplanted as new CA 7 to the Long Beach Freeway, replacing SSR 15, deleted because of I-15; but it too disappeared 20 years later when I-710 was commissioned over that facility.  CA 7 is now a short truck-crossing connector from I-8 to the Mexican border east of Calexico in rural Imperial County (my, how the mighty have fallen!).

Very true.  I associate low numbered routes as being more important.  I suppose the state had to renumber 7 and 11 as 710 and 110, but I never felt that as being necessary.   CA has many fine interstate quality state numbered freeways.

[Road Hog]

AR 3. It used to begin at the Louisiana line south of Magnolia where AR 19 begins today and ended at AR 16 (today's US 64) near Crawfordsville. Most of it was replaced with US 79 except for the part south of Magnolia and the part from US 70 at Lehi north to US 64. It went from being about 275 miles long to being 18 miles long at the southern stretch and 5 miles on the northern stretch. The stretch south of Magnolia is now AR 19 and the stretch north of Lehi is now AR 147. AR 3 no longer exists.

Several single digit Arkansas state highways have been decommissioned. Here's a rundown:

AR 1: still exists
AR 2: no longer exists, largely replaced by US 82
AR 3: no longer exists, largely replaced by US 79
AR 4: still exists in extreme western and extreme eastern Arkansas, largely replaced by US 278
AR 5: still exists in several unrelated segments
AR 6: no longer exists, replaced by US 270. A later short lived stretch of AR 6 was replaced by US 49
AR 7: still exists
AR 8: still exists
AR 9: still exists

I wouldn't call the AR 5 segments unrelated. The concurrencies are just unsigned, as is typical of ARDOT.

[catsynth]

"Emasculation", really? 

Seriously though, if NY 17 is unsigned from I-86 when the latter is fully completed, it will be but a stub of its former self in western Rockland County.

[SectorZ]

"Emasculation", really? 

Seriously though, if NY 17 is unsigned from I-86 when the latter is fully completed, it will be but a stub of its former self in western Rockland County.

Emasculation... stub...

I saw what you did there.

[jp the roadgeek]

"Emasculation", really? 

Seriously though, if NY 17 is unsigned from I-86 when the latter is fully completed, it will be but a stub of its former self in western Rockland County.

Once you eliminate the future I-86 overlap, why not just renumber the Suffern-Central Valley stub as an extension of NY 32 and be done with the number?  NY 17 no longer directly connects to NJ 17 unless you enter the Thruway and Exit on I-287 and take the first exit.  Then, just renumber the 17 lettered routes to regular numbers.