The only one I've ever seen (that I can think of) is at Harrisburg, from PA 581 WB to US 15 SB.
It gets lots of traffic, and was widened to two lanes with a traffic light at the end (US 15 isn't an expressway north of there anyway) due to lack of room for anything else. That even backed up, and in the recent reconstruction of that part of US 15, it was widened to three lanes.
So, what other three-lane loop ramps are there?
Maybe there's even a four-lane one somewhere... :spin:
A cloverleaf icon and/or a diamond icon for topics would be useful for threads like this.
Waukesha, WI, Barker Rd to I-94 EB: https://maps.google.com/maps?q=barker+rd+i+94&hl=en&ll=43.032932,-88.168022&spn=0.002113,0.002411&client=firefox-a&t=h&z=19
Exit 272 off the FL Turnpike NB has three lanes, but not a loop ramp though.
Exit 55 off I-4 WB near Davenport, FL has three lanes turning right on to US 27 SB.
http://maps.google.com/maps?q=Davenport,+FL&hl=en&ll=28.234972,-81.65141&spn=0.002391,0.004672&sll=41.848002,-87.615602&sspn=0.008152,0.01869&oq=Davenport,+FL&t=h&hnear=Davenport,+Polk,+Florida&z=18
http://maps.google.com/maps?q=Davenport,+FL&hl=en&ll=28.235157,-81.651608&spn=0.000598,0.001168&sll=41.848002,-87.615602&sspn=0.008152,0.01869&oq=Davenport,+FL&t=h&hnear=Davenport,+Polk,+Florida&z=20&layer=c&cbll=28.235153,-81.65168&panoid=soppFmQ1qNUS-Wan4-We3Q&cbp=12,333.84,,0,0
There is a 4-lane 360-degree loop from Exit 12/Interstate 595 East into the Fort Lauderdale-Hollywood International Airport.
Quote from: xcellntbuy on December 27, 2012, 07:58:06 PM
There is a 4-lane 360-degree loop from Exit 12/Interstate 595 East into the Fort Lauderdale-Hollywood International Airport.
There's a 6-7 lane loop ramp from NJ 495 to NY 495. ;)
Exit 154 Eastbound I-10 to Eastbound US60 Tempe, AZ 3 Lane Loop Exit Ramp
Quote from: mapman1071 on December 27, 2012, 11:21:12 PM
Exit 154 Eastbound I-10 to Eastbound US60 Tempe, AZ 3 Lane Loop Exit Ramp
Three lanes, but it's a flyover, not a loop ramp.
Off-topic: Superstition Freeway? What?
In Centennial, CO, the EB Arapahoe Rd to NB I-25 loop is two lanes plus an HOV bypass lane.
Westbound Dixon Landing Road to southbound I-880, Milpitas CA:
http://goo.gl/maps/J37WT
For Nevada, the only one I can think of is in North Las Vegas, the Lake Mead Blvd WB on-ramp to I-15 South (Google Map (https://maps.google.com/?ll=36.196872,-115.138548&spn=0.002274,0.00327&t=k&z=19)). It starts off as two lanes underneath I-15, but widens out to accommodate an HOV lane for the ramp meter.