I haven't got my HMM book with me and I need the approximate dimemsions of the dam and the hole that's been punched in the top of it.
From what I recall the top of the dam is a 45' wide walkway in between 5' wide safety walls; I don't recall how long/wide the dam is or how much of that width is covered by overflowing water in the illustration (maybe one-tenth or one-twelfth of the width?)
For my purposes today, the dam's height is not relevant. I'm basically trying to calculate the volume of stone missing from the dam where the ogres and Black Magga broke through.
Thanks.
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I haven't got my HMM book with me and I need the approximate dimemsions of the dam and the hole that's been punched in the top of it.
From what I recall the top of the dam is a 45' wide walkway in between 5' wide safety walls; I don't recall how long/wide the dam is or how much of that width is covered by overflowing water in the illustration (maybe one-tenth or one-twelfth of the width?)
For my purposes today, the dam's height is not relevant. I'm basically trying to calculate the volume of stone missing from the dam where the ogres and Black Magga broke through.
Thanks.
The height *is* relevant because volume requires three dimensions. :)
Going by the grid on the map, you have the walk-way correct. It's a hole that is ~50' wide east to west, and ~75' from the top of the dam, so that's a hole that is 50' x 50' x 75' = 187,500 sq. ft of stone.
If you would like to be specific and detailed, you'll add 1,250 for a 5' x 5' x 50 ' safety wall (188,750 sq. ft. total). If you consider ~10% of the structure was probably hallow, holding rooms, tunnels, and other things that are not stone, then you're removing 18,750 sq. ft. and looking at a total of 170,000 sq. ft. overall.
Enjoy! :)
The height *is* relevant because volume requires three dimensions. :)
I was just saying the height of the dam (~300') isn't relevant. Yes, the height of the hole is, and thanks for providing all three numbers.
In our last session the party reached the dam and has defeated the various opponents atop it. Before proceding to the lower levels they now plan to cross to the east side and examine the break more closely to see if multiple applications of wall of stone and stone shape are likely to do any good.
Given that the 9th L cleric using those spells can only manipulate 19 cu.ft. of existing stone or create walls of up to 37.5 cu.ft. the idea is pretty much laughable, but I did want to have some figures to give them. With 5' safety walls on both sides of the dam it's 55' thick at the top, so given the height/width dimensions you supplied, 206,250 cu.ft.
(And it's a moot point, but so far as I can tell from the spell description, a single casting of wall of stone doesn't even allow for walls thicker than 2", which would snap immediately under the tremendous water pressure.
Since there's no explicit prohibition against thicker walls, I might allow it, but realistically, a block of stone 2' x 3' x 6.25' can't be called a wall, so that would seem to violate the spirit of the spell if nothing else.)
Has any PC thought of Make Whole? I would think that it would repair it with multiple castings...
Make Whole: This spell functions as mending, except that it repairs 1d6 points of damage per level when cast on a construct creature (maximum 5d6).
Mending: All of the pieces of an object must be present for this spell to function.
The missing pieces of the dam are under water and mud and many are somewhere downstream.
Here's another idea from my own RotRL campaign:
Upon seeing the flood damage inflicted upon Turtleback Ferry by the flood, one of the characters decided to do a little shopping in Magnimar after the adventure's conclusion. She bought a Lyre of Building, made arrangements to get construction materials brought in (via an enhanced set of Ring Gates I let them find inside the dam), and set about rebuilding the settlement. She then went to work on Skull's Crossing the following week to repair the breach. (She made an awesome set of successful Perform checks in both instances, too - she got both sites done in record time, given the circumstances.)
I love it when my group does the 'Big Damn Hero' thing... (^-^)
Your Friendly Neighborhood Dalesman
"Bringing Big D**n Justice to the Bad Guys Since 1369 DR"
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I was just saying the height of the dam (~300') isn't relevant. Yes, the height of the hole is, and thanks for providing all three numbers.
No problem - sorry about the sq vs. cu.; I had to type the response three times due to 500 server errors for the post. I started to seriously run out of time to reply and got sloppy. Obviously you figured it all out. :)
Incedently, the entire thickness is 50' of wall - the safety wall is part of that dimension according to the diagram. My math was based on the wall below the safety wall on only one side, and then added the wall as it juts up above the walkway.
It's actually good information to know; my players will be making their way to this challenge in the near future.
Upon seeing the flood damage inflicted upon Turtleback Ferry by the flood, one of the characters decided to do a little shopping in Magnimar after the adventure's conclusion. She bought a Lyre of Building
I love it when my group does the 'Big Damn Hero' thing... (^-^)
Yep, that's fun. I'm not going to give them access to a i]Lyre of Building[/i], though. This same group of players (well, almost -- I was a player and one of the current players was DM then) obtained a Lyre of Building in the Red Hand of Doom adventure arc and we used it to great effect shoring up city defenses, creating battlefield obstacles, etc. I wouldn't want my group to fall into patterns that make them lazy. :)