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becausefrog t1_isowcxk wrote

Sloped sidewalks was one of the things I noticed a lot when I first moved to the Back Bay many years ago. It makes walking on ice even trickier, although I suspect it's meant to help with drainage.

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echocomplex OP t1_isowx7q wrote

Makes sense, I've seen other sloped sidewalks in the city. It may not be evident from the picture but these ones are mega sloped. I didn't get out a ruler but my rough feeling is the lower side is 8-10+ inches lower than the high side in places.

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ZippityZooZaZingZo t1_isoy8ir wrote

Interesting! I must be the most unobservant person in the world. I’ve walked Water St a million times and never noticed this.

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Practical_War716 t1_isp020w wrote

Isn’t it crazy to look at that picture knowing people have been there for essentially hundreds of years. Walking those same streets.

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f0rtytw0 t1_isp39tv wrote

The buildings are growing

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Dukeofdorchester t1_isp5iau wrote

While buildings have support beams, sidewalks obviously don't. Boston is 2/3 landfill, so the freeze/thaw cycle really does a number on sidewalks. You notice it especially in places with brick sidewalks. They almost look like waves in places.

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CLS4L t1_isp9m17 wrote

Sinking into dump ocean it built on

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werewolfmanjack t1_ispmhfs wrote

I don’t think that much pitch is necessary for drainage. I would guess it’s more settling of the street bed due to road usage.

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HammerfestNORD t1_ispoizk wrote

Sidewalks on Blossom St. running along MGH suck balls with the slant. We have to move patients on stretchers to the ambulance parking. The damn slants make it a pain in the ass.

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jester02k t1_ispwpwy wrote

Some of the sidewalks in Boston have voids under them for Water,Power, and Steam (Heat). It makes for easier access to them for repairs and upgrades. I think the one in your picture is one due to the caulking along the edges to keep the water out hence the steep pitch. Edit: Oh I forgot the steam heat pipes add the benefit of heating the sidewalk so light snow storms it just melts like a dusting.

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Dinosaur9911 t1_ispym7k wrote

That’s what happens when you hire unions.

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PaulitoTuGato t1_isq45w2 wrote

It’s so that the water moves off the sidewalk and into the street where they have drainage next to the curb. The street also pitches down from the center towards the curb. Although it might not seem great when it gets really cold, when properly cleaned and salted it definitely helps in drying the sidewalk. Watch out for anything metal on the sidewalk, I’ve almost busted my ass a few times walking on metal lids in the winter!

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takenotes617 t1_isq7ct0 wrote

I built that escape room 😂 is it in business still?

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psc0425 t1_isq9mjb wrote

The slope is intended to guide the drunks walking home.

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wet_cupcake t1_isqcl0g wrote

Always noticed them but noticed them even more after being on crutches all of July and August. Brutal.

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Itchy-Marionberry-62 t1_isqqhdm wrote

I worked in the area…and for a long time after Ankle surgery…those sloping sidewalks were so painful for me. 😳

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outdoordreamer t1_isreayp wrote

Civil engineer here. Alot of people are commenting here that this is for drainage, but I seriously doubt that's the case. The cross slope of these sidewalks are wayyyyyy more than is necessary for proper sidewalk drainage. For reference, minimum slope percentage we design for on sidewalks to accommodate drainage towards the road is 0.5%, with a maximum allowed percentage of 2% per ADA requirements. Even at 2% slope, it's barely noticeable when walking. If I'd have to guess, I'd guess these sidewalks have a cross slope of at least 15%+. I doubt it's for sewage either, because although Boston is old, I don't think it's that old.

If you look at the pic, it looks like the grey building face on the right and the sidewalk panels that abut it are newer than the other buildings and sidewalk panels. I bet what happened is they re-did the building which raised the building face up vertically, but didn't take into account the impact it would have on the sidewalk so the City was forced to make the sidewalk with this crazy cross slope to meet the new building face.

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Crixxxxxx1 t1_isrhxuc wrote

Most of Boston is landfilled

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Lazy-Hooker t1_issx1wr wrote

I don't know but ive had to grip the sides of buildings there so I didn't slide on the ice

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Low-Donut-9883 t1_istc87x wrote

Pretty sure its intentional to direct the water away from the foundation.

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[deleted] t1_iststzl wrote

People weren’t as healthy back then, and everyone had a long leg and a short leg. These sidewalks attempt to correct this.

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ReporterOther2179 t1_isvn1ij wrote

Jordan Marsh had the blueberry muffins in its cafe. Recipe is available on YouTube. Fairly easy recipe if you’ve got a bowl, a mixing spoon, and a muffin tin. Could do it in a cast iron skillet, as a cake.

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