[bruinbirdman]

"They decry these reports as false and say there are no plans to build the SuperHighways from Mexico, through the US, to Canada."

Well they aren't building that bridge to bypass Hoover Dam for nothing! An interstate straight from Mexico (not Baja) to I-10. From I-10 Phoenix, U.S. 93 to I-15 in Las Vegas, then a straight shot to Canada. The only large cities on the route are Phoenix, LV, and Salt Lake City.

Arizona has already finished their part. Dirty Harry Reid got bucks for the bridge but forgot about the bottle neck in the little town of Boulder City between the bridge and LV. When the bridge is completed in 2010, traffic routed south bypassing Hoover Dam through Laughlin because of 9-11 (traffic has about doubled in that time), about 8,000 trucks a day will have to make a turn at one of the two stop lights in the town.

yitbos

[Tolerance Sucks Rocks]

You’re talking about Canamex, correct? As I understand it, Canamex will merely be a four-lane monstrosity, not ten-to-twelve-lane with rails and pipelines to boot.

[ThePythonicCow]

Well they aren't building that bridge to bypass Hoover Dam for nothing!

Here's a nice shot of the approach under construction to what will be that bridge, downstream from Hoover Dam, on Google Maps: Hoover Dam Bypass.

According to http://www.hooverdambypass.org/, the approaches on both sides, from Nevada and Arizon, are four lane highways, two lanes each way.