Arizona Loop 303

[swbrotha100]

Loop 303 is only 3 lanes in each direction. There may be extra lanes approaching the I-10 interchange in the future. There is room in the median to add extra lanes (or at least HOV lanes) at a later date.

[707]

As of today (5/2) the SB traffic around Grand Ave is now using the future SB lanes. It's still just one lane in each direction from north of Bell to just south of Happy Valley. Still more paving, signage and lighting to be done. For all intensive purposes, Loop 303 is a full freeway now.

Further south, construction is going on from I-10 to south of Van Buren. Ramp construction is most visible on the future WB I-10 to SB 303 (either viewing from I-10 or from McDowell Rd).

Thanks for that update! Hopefully by June the construction will be over and the new freeway will be three to six lanes wide in both directions!

The 303 is never going to be 6 lanes wide each direction. 2 lanes each way from 17 to Happy Valley, and probably 3 from there south to I-10. But never 6.

Don't say never. Who knows what 20 to 30 years could bring?

[blanketcomputer]

The 303 is never going to be 6 lanes wide each direction. 2 lanes each way from 17 to Happy Valley, and probably 3 from there south to I-10. But never 6.

I wouldn't be so certain about that. It's fairly obvious from driving Loop 303 and using the ruler tool in Google Earth that the interim roadway north of Happy Valley is designed to be 3 lanes in each direction. The roadway is just as wide as the current three lane sections of Loop 202. The only sections that are built to support only 2 lanes are the on and off ramps that the interim roadway uses because there is no current need for overpasses or underpasses.