I opened the thread thinking it would be fun to say “No way, Jose!” because my address is on Route 66.
Then, I see you thought of that in the OP.
I live at the intersection of two streets. My address is on the smaller one, a suburban thoroughfare 5.2 miles long. So it’d be a long walk to go full length both ways, but doable.
The other street is U.S. Route 1 - Wikipedia which is 2370 miles long. So rather harder to complete the circuit. 
Half a mile, and it makes up an eighth of my daily walk. Years ago, I lived on Pacific Coast Highway (655 miles).
Well, West-East is no trouble as that’s just the width of Manhattan which is only about 2 miles. But North-South Broadway runs 33 miles (13 in Manhattan and then up north.) Then it changes names but I think you could technically stay on the same road all the way to Canada. So sure I could but I really don’t want to.
I live in a standard Chicago area grid. My N/S street runs less than 1 mile before being interrupted by some train tracks and a couple of angled streets, after which it continues for 2 more blocks.
I’m on team cul-de-sac too, so that part would be easy. I walk the whole development several times a week, when my best friend’s foster dog is hanging out with my at the house. There are a total of five cul-de-sacs, with four little cross streets and an access road.
Yes, by a technicality.
It’s common for streets in this part of the world to have different names on different stretches. You’re walking a straight line on the same ribbon of asphalt, but five blocks ago you were on one street and now it has a new name.
The street on which I live has a different name about 200 meters south, and it has a different name again about 700 meters north. This isn’t just a local-practice name on top of the official name, it’s legit three names in the space of a kilometer.
So, yeah. I can walk that easy.
Of course, if you don’t accept that technicality, walking north puts you in a totally different country after about three hours, which is obviously problematic.
OK, so I looked it up. It stays named “Main Street” for about 3 miles. But it’s also part of US 191, which is 422 miles (in that section; US 191 isn’t continuous). But to stay on 191, you have to make some 90º turns at four-way intersections, so I wouldn’t call it the “same road”. If you go as straight as possible at all intersections, then it looks like it’s about 40 miles, which Google says would be 14 and a half hours by foot. I think that last one is the definition I’d use, but any of those is longer than I’d walk without very good reason.
I’m on a 1-block dead end street, built in the 1920s before the cul-de-sac era. So it’s very easy to walk the full length of my street.
I’m in a typical post-war subdivision, where the streets curve around rather than forming a logical grid (I’m told this was an intentional design to discourage drivers from using residential streets as a cut-through). I’m the second house from the end of my street. Walking to the other end is exactly one mile according to Google Maps, if you just stick to my street, and I have done it before. However, because the street makes a big sweeping nearly 180 degree curve to get there, it’s much shorter to cut across the park a block from my house in the other direction, and then walk down a couple of other streets that link back up with my street.
I live on a little suburban street that’s only about a block long. I often walk out of my house in one direction, to that end if the street, then walk around the block (or a longer walk that encompasses a few blocks) and then return to the other end of the street and walk home. My longest typical recreational walk that does both halves of the street is probably a mile and a half. I’ve never actually measured how far it is just around the block, but it must be well under a mile. So my whole street can’t be more than ¼ mile, maybe, possibly, ⅓ of a mile?
Anyway, yes, easily.
My road is 3.2 miles long. There are 27 homes on it, and a lot more cattle and horses than people.
StG
Depends on what you consider as counting as the street I live on. There’s a long string of streets with the same name. They’re all roughly lined up with each other, but they’re separated by things like nature areas, and breaks for railroad tracks and other major streets.
So if you mean my little segment of the street that goes by this name, yeah, I could walk it in about 30 minutes or so. If you mean the whole thing? I’d have to either go on a hike on trails or other streets to connect the parts. It’s do-able, only about three and a half miles, but I’d have to leave “my” street.
End to end my street is only about 1/3 mile. My dog wants a longer walk than that.
I think so, although in one direction there’s a railroad crossing and then some warehousy-type buildings about a block from the end of the street, so I’m not 100% sure people are allowed to go all the way to the end (also kind of a dodgy neighborhood in that direction, so I wouldn’t do that bit on foot unless I really needed to). But it’s not more than around two or three miles long.
I live in the middle of town. From my house to the west end of town is 1.4 miles. From my house to the east end is 1.3 miles. And I’ve walked to each end and back many times, though never in the same day.
Cul-de-sac person here. Its about 300 yards long. It was a street about 50 years ago that got cut off by a newly built highway and they put a pedestrian bridge at the end of my street over the highway and renamed this part of the street to go with a slightly off center street nearby. I walk my dog across that bridge to the end of what used to be my street all the time. That is probably another half a mile. I walk farther than that with the dog but that is my street and what it used to be.
My street is roughly .6 miles long according to Google maps. I’ve walked the entire length only a handful of times as I was trying to figure out my preferred walking route through the neighborhood. These days I go roughly .3 miles and hang a right.
The street we live on in Arizona is about 34 miles long, but it is very discontinuous. There would be no reason why I would want to walk the whole length, even if I could. On the other hand, the street we live on in Colorado is about 200’ long, so, yeah, I could.
No! Its a major street, over 7 miles.