Imagine the traffic on the turnpike the day before the hurricane hits
By adamg on Sat, 08/09/2014 - 9:36am
The state has released a map of evacuation zones for major hurricanes.
The map shows areas that could get whacked by worst-case storm surges - with the brownish areas those that would likely get flooded in Category 1 storms, yellow in Category 2 storms and green in Category 3 and 4 storms (you can also download more detailed community maps).
The best way to be prepared for the possibility of a hurricane Evacuation is to know your evacuation zone and develop your emergency plan (such as your destination and travel routes) ahead of time.
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This explains a lot
Both I and my neighbors have had dreams about launching boats off the raised retaining wall at the corner of my driveway.
I guess we all read the land well.
Last time Boston got a direct
Last time Boston got a direct hit by a major hurricane and had biblical flooding in the 1930s the world didn't end.
Ocean almost an inch higher now
or something like that. Many parkways were built in flood planes in the 1930s along with much development since giving water less room to pool, so it will spread out more.
It would be interesting to
It would be interesting to compare how much more developed the waterfront is now with how it was in the 1930s. At least, that was the issue that came out in Manhattan during Sandy. Back in the 1930s (and today, any buildings still extant on the waterfront from pre-WWII construction,) the buildings were more resilient in both construction and uses than they are today. The water washed in, and washed out, of these buildings with the actual structure designed to withstand that. The problems arose when people put incompatible uses at the ground floor, and below grade (electrical and comm. equipment, art galleries, etc.) The new South Ferry Station in Battery Park was destroyed by flooding. Meanwhile, the old South Ferry Station, which also flooded, survived relatively unscathed. The MTA was able to reconnect the signals and re-power the third rail and that's what's being used again while the new station is rebuilt (this time with flood gates--oy!)
In the year or so after Sandy I went to a few charrettes which suggested that the entire mid-Atlantic/Northeast waterfront, from Atlantic City up to New Haven should be restored to tidal flats. Ahahahaha! One drive up I-95 will tell you that would cost mega-bazillions, and isn't likely to happen any time in my lifetime. Look at New Jersey. Large areas of the Jersey Shore completely destroyed during Sandy, and those people were allowed to go back in and rebuild exactly what was there.
To rebuild a residence that
To rebuild a residence that is in a flood zone requires elevating the home above the base flood elevation. If the home is not elevated then the mortgage on the home is not valid for any VA or FHA guarantees. Most banks will not write mortgages ineligible for federal mortgage insurance.
If the homeowners has enough cash of their own to rebuild and doesn't require a mortgage any future buyer will be required to elevate the home to get a mortgage.
Really?
The only hurricane on the record books that was within 100 miles of Boston and was a minimum of Category 3 was in 1869. You can see it and search around more here.
And if we're talking about any strength hurricane at all within 50 miles of the city, there are only 32 storms...and interestingly none of them were in the 30's at all.
TRY HARDER NEXT TIME
http://en.wikipedia.org/wiki/List_of_New_England_hurricanes#20th_century
Ah, I see
So by Boston got a "direct hit"...we're talking about Boston in 1938 when it was located in the Berkshires?
I see what was wrong with my calculations now. I didn't account for an anon talking out of their ass when it comes to how bad we had it and how easily we made it through.
In the meantime, storm surge from the 1938 "New England Hurricane" was around 10 feet. I think that's the yellow area of these maps. So, "biblical flooding" and "the world didn't end" are because we barely slid by and had the least of what these maps were setup to define.
Can't trust wikipedia
Local lore is that the hurricane wrecked eastern Long Island, churned up the Narragansett, and royally messed up Providence.
Of course, I am also no expert in meteorology or storm history, and I do know that the memory of that storm seems to be stronger than the storm itself, at least in Eastern Massachusetts.
Catherine Hepburns family home was swept to sea.
Yes. Providence made special steel barriers to lower for future disasters.
There may still be watermarks on period buildings there. The damage was made worse because the ground was saturated from prior rain.
There may still be a few nurse logs in forests that are carcasses of that storm.
I mean, jeeze this wrecked the saw timber industry in southern New England decades. We had insurance companies and damage assement capabilities back then and by all accounts it was the worst thing to hit eastern New England since independence.
Maybe there are some exculpatory technicalities about just how rootin tootin bitchin it was compared with whatever but it was well lodged in the memories of those in its path.
http://en.wikipedia.org/wiki/1938_New_England_hurricane
The BPL has photos from both
The BPL has photos from both the 1938 storm and Hurricane Carol in '54. I don't think Boston got off lightly.
Compared to Providence
Or the no name storm of 1991 (that's right, Junger, I won't give it the name you gave it), it wasn't that bad.
I worked on a project where we were looking for coverage of the '38 storm with damage in Roslindale. I've seem worse. But yeah, a serious hurricane hit Boston.
How did I end up arguing against myself!
My dad, then an 11-year-old
My dad, then an 11-year-old kid in East Cambridge, has told us of his memories of his church's steeple ending up laid out down the center aisle (St Hedwig's) and his older brother helping scuttle boats in the Charles to protect them from the winds. Though Boston didn't get the hit that LI and Providence did, you'll hear lots of stories from his now-disappearing generation. It definitely gave them - or at least my dad - a solid respect for the power of a hurricane.
(Granted, I believe I've read that St. Hedwig's was the only local steeple to come down, and it being his own church would have made a particularly strong impression on him.)
Forward speed was a factor in 1938
When it barreled up the Narragansett, it may not have still been a Cat 3, but it was moving north at 60mph.
As for "Didn't hit Boston", please look up why Deer Island isn't an island anymore (hint: humans didn't fill it in).
The shape of Narragansett Bay concentrated wave pitch
to an unusual degree.
I lived in Providence as a brief experiment in the 80s and was impressed by a fairly elaborate wall system along the southern edge of town.
http://en.wikipedia.org/wiki/Fox_Point_Hurricane_Barrier
That's called a tombolo.
I didn't know '38 made that causeway but the north shore coast has a number of tombolos. Boston was one. Nahant, Winthrop and Marblehead Neck all come to mind.
I haven't noticed as many on the south shore. I'm guessing it is related to how specific current patterns deposit sand with amplification by seasonal storm cycles,
There's a nascent tombolo trying to join Thompson Island to the mainland.
I find it interesting that
I find it interesting that All of Lower Allston is in the green. And apparently across the street from my house as well.
Not that I expect a cat 3 or 4 hurricane.
I think
That's because the Charles has some protection from the Charles river dam to keep headwaters out. It would only be inundated during a very high surge.
I'm guessing the precision on these maps is not precise and is as there titles suggest, "evacuation areas" due to storm surge. Since as far as I know there's parts of Southie and Charlestown at elevations above 30 feet or so.
Still, do you want to be stuck on the newest Boston harbor island with no utilities and all the fund stuff washed around you from the commercial areas being under water?
My guess is not, which is why this recommendation is telling you to get the fuck out of town.
I was surprised
by the inclusion of the Beacon/Bay State fork off at Charlesgate West in Kenmore Square in the Green Zone as well.
My husband lived there for years pre-marriage, that whole block went a few inches underwater in a decent thunderstorm. I saw water rise over the bottoms of car doors there numerous times, over buildings' bottom steps, flooding their basements.
Of course, if it was dry enough to not flood, Muddy River went stagnant and became a Mosquito Jamboree.
Somerville and Everett Oasis of safety?
Who would have thought much of Somerville and Everett as an escape from disaster. I'm OK in my part of Arlington as long as the street drain constricting silt filters are removed or destroyed prior to major storms.
Winter Hill for the win.
My housemate and I have joked about just drinking on the porch until the global warming sea rise hits the bottom of our stairs. I think our plan is on track.
Have the zones been tweaked,
Have the zones been tweaked, or are the maps just new?
I wonder how MEMA is thinking a mass evacuation from Eastern Mass (including the Cape) would be handled. I hope they have more of a plan in place than just those stupid "Evacuation Route" signs. I guess one could take lessons from the Outer Banks, but it would be interesting to see how it would work. Would the Cape bridges be closed to non residents? Run outbound in both directions? Would the Pike also be closed to anything but Westbound traffic? It's interesting to consider.
Yes
The state gave funding to global warming preparedness, so this is probably a work product driven off new FEMA flood maps.
Not FEMA, SLOSH
Sea, Lake, and Overland Surges from Hurricanes - somebody had to have had an extra cup of coffee or two to come up with that acronym. Might also explain why it's not as fine-grained as the FEMA maps (the "original" parts of South Boston, i.e., Dorchester Heights, would not be covered in water, I'd think (barring that rare Category 197 storm).
My suggestion
buy bikes or mopeds for the whole family.
Our infrastructure can't handle summer rush hour traffic. Mass evacuations away from the coast will just be a 48 hour parking lot.
Sad, but dead-on accurate, I
Sad, but dead-on accurate, I think.
That has been our family plan since Katrina
We would evacuate on bikes. I'm not joking.
We aren't in an evacuation zone, but surrounded.
High ground is close at hand
..in your area.
There's a route to the Fells Hills via the NW side of Shepherd Brooks.
That sounds like a plan
Make sure the kiddos have raincoats.
It's true that pandemonium would erupt during evacuations,
via cars, but who's to say that mopeds and bicycles wouldn't also cause pandemonium in the event of a mandatory evacuation?
Some of this makes no sense...
In Watertown along the Charles, they have evacuations from hilltops and they don't seem to take the Watertown dam into account. (or the Bemis half-dam, or the dam behind Shaw's in Waltham). We've been through river flooding, and the water barely makes it across Pleasant Street between Rosedale and Bacon.
If a storm surge makes it over the Watertown dam —doubtful — it still isn't going to be high enough to reach to Spring and Waverly. It's never going to make it to the hilltop where the main campus at Perkins is.
In Somerville/Arlington/Cambridge along Alewife Brook, they seem to have discounted the depressed riverbanks; it's a long way down to the water along there. In Medford/Winchester, they seem to have forgotten the dam between upper and lower Mystic Lakes.
It's usually between 6 and 12 feet or so.
The purpose of the riverside park strip that edges the Mystic is to be a flood plain buffer.
http://youtu.be/Iux1R4uWNJQ
I covered it last year as far as Winchester center to make material about the Mystic River Greenway system.
Learning to see the old face of the land forms beneath all the monkey junk heaped on it is one of my favorite past times.
And here's a Sunday set of the Mystic River between Downtown and the Dugger Park area.
https://flic.kr/s/aHsk12rFfv
Looking for an explanation of Zones A, B, and C
and not finding one. The logical guess is that Zone A is the highest risk and would be evacuated even in a relatively mild hurricane, and that B and C only get evacuated for progressively stronger storms. Might be nice to have that clearly explained somewhere. Did I miss something obvious?
Inundation zone map
Well, the posting here on uhub says that, but I'm not sure where that information comes from.
The state has also published an "inundation zone map" showing which areas might flood based on the strength of the storm. See here: http://www.mass.gov/eopss/agencies/mema/hurricane-inundation-maps.html. There are different colorings for category 1, 2, 3, and 4+ hurricanes.
My guess is that the evacuation zones are the flooded areas, plus any areas that become islands because of the flooded areas. (For example, Eagle Hill in South Boston which would not flood but is in an evacuation zone). But, that's just a guess.
It's buried in the community maps
https://drive.google.com/folderview?id=0B5nTDl9asWH1VVlJUlktQjVlYWc&usp=...
Aha!
But, strangely, they have a separate scheme for Boston and Cambridge than they do for the rest of the state. For places other than Boston and Cambridge we have:
the water is a rising
I am thankful to be living in the Highland Park area of Roxbury, but it looks like I could go down the end of the block to Jeep Jones Park and watch the water lapping up on the side of the hill along Malcolm X Blvd.
Reminds me a bit of the
Reminds me a bit of the Strangelovean military planners of the Reagan Administration who as part of selling the idea of winning a "limited" nuclear war informed towns in MA where they would evacuate in northern New England.
We're looking OK in JP
Although, 3 or so years ago when it rained heavily, non-stop for days in March, the underground Stony Brook behind my house flooded all the basements in my neighborhood, including mine. We all had to buy pumps.
I need a map translator
If you're colorblind like me that map is confusing as hell.