Considering that they will be dredging every 5 years, I would think not.Is there any possibility that the structure in question could be temporary and part of a larger construction project?
Is there any possibility that the structure in question could be temporary and part of a larger construction project?
Is the only dredge reference that which is associated with the dredge impact area in the sediment basin, as shown on "stitched" detail from the application? Where is the reference to draining the Rhine itself or the 5 year interval? (I'm assuming in the body of the application itself?)
I was asking about dredging versus draining, but specifically in context of your earlier comment:Are you talking drain as in take out water?
1. I wasn't sure where five years came from, unless it's in the document proper, an assumption of what is in the Rhine BMP based on government guidelines, a reference to the actual BMP (I've never seen their actual BMP for the Rhine), etc. Five years is consistent with what I'd expect for the the sediment basin, I just didn't see where five specifically came from (based on what's been posted thus far)....Everything talked about stays within the boundary of the water. It seems as though its a plan for 4 footers, and a developed way to continually keep the Rhine clear of runoff through dredging every 5 years. Take away what you will about the park needing to continually dredge and area they didn't need to do that with before.
2. The dredge impact area is shown in the sediment basin on the detail diagram linked above, so that's at least one area where the document shows where they're dredging. Keeping that clear on a schedule as per the Rhine BMP or general BMP guidance otherwise makes (i.e. point #1), and by keeping the basin clear, they in turn keep the Rhine clear of excess sediment which would be a goal of their BMP. By referencing dredging in the same statement about the 4 footers however, I wasn't sure whether you were just making two separate points or also saw dredging occurring in the Rhine proper. If so, where is that referenced? (And by Rhine proper, I mean the waterway post-sediment basin construction, as it appears the south shore basin is proposed within what is today water where the swail empties into the Rhine).The document doesn’t say exactly where they are dredging, but if the purpose is to create sediment basins, that’s where it’s likely going to happen. And based on my past experiences, regular dredging means they are cleaning out those basins to maintain a certain water depth and or possible harmful runoff.
I was asking about dredging versus draining, but specifically in context of your earlier comment:
1. I wasn't sure where five years came from, unless it's in the document proper, an assumption of what is in the Rhine BMP based on government guidelines, a reference to the actual BMP (I've never seen their actual BMP for the Rhine), etc. Five years is consistent with what I'd expect for the the sediment basin, I just didn't see where five specifically came from (based on what's been posted thus far).
2. The dredge impact area is shown in the sediment basin on the detail diagram linked above, so that's at least one area where the document shows where they're dredging. Keeping that clear on a schedule as per the Rhine BMP or general BMP guidance otherwise makes (i.e. point #1), and by keeping the basin clear, they in turn keep the Rhine clear of excess sediment which would be a goal of their BMP. By referencing dredging in the same statement about the 4 footers however, I wasn't sure whether you were just making two separate points or also saw dredging occurring in the Rhine proper. If so, where is that referenced? (And by Rhine proper, I mean the waterway post-sediment basin construction, as it appears the south shore basin is proposed within what is today water where the swail empties into the Rhine).
Just trying to clarify a few things since I don't have the document and before rumors of Rhine dredging take off, unless of course that is what the document says. FYSA, I'm late to the review party since I was out of pocket last week, but I did drop a note to @Zachary about previously looking for people who have some related professional background...
I was asking about dredging versus draining, but specifically in context of your earlier comment:
1. I wasn't sure where five years came from, unless it's in the document proper, an assumption of what is in the Rhine BMP based on government guidelines, a reference to the actual BMP (I've never seen their actual BMP for the Rhine), etc. Five years is consistent with what I'd expect for the the sediment basin, I just didn't see where five specifically came from (based on what's been posted thus far).
I would think that would be highly unlikely, considering the type of piles they're using. Also, if you look at pictures of the existing tressle (below), there is a much longer span length with the truss-style bridge. The footers seem to be too close together for a bridge that could easily span most of the Rhine.What are the odds they are rerouting the railroad?
Completely uneducated opinion but I would think thasy the weight of those trains would dictate something other then wood pilings with a cement top.What are the odds they are rerouting the railroad?
Completely uneducated opinion but I would think thasy the weight of those trains would dictate something other then wood pilings with a cement top.
My "theory" now is that it is somehow for themeing of the Madrid attraction.
I didn't get a chance to expand on my thoughts last night given the hour... so here's what I came up with when looking at the diagram:
1. I now highly doubt the structures in the Rhine are for a bridge.
2. The JPA states that the structures, assumingly those in the Rhine as there are separate and inconsistent construction details for the sediment pond, are "Structures to be wood piles capped with concrete."
3. I've worked with a few bridges in the past--and a rail trestle (which already exists not far away--can't think of any reason to move it) or a high pedestrian bridge, really wouldn't use pilings like that as abutments for many reasons (and indeed, neither Ponte de San Marco nor the rail trestle on either side do).
4. What could possibly use such construction would be a pedestrian (not vehicular) bridge low to the water (like the one by Nessie). However, numerous issues with that: a) the Rhine cruise, b) the very steep slopes on either side of the Rhine complicating sediment control and accessibility issues, c) the fact that when you egress the bridge on the north bank, you are walking literally into the Madrid attraction (as then conceived), d) and who knows what happens on the south bank--the sediment basin only tells me they may wish to develop Festhaus Park more in the future--not that it has anything to do with Madrid necessarily, e) and that according to the Madrid layout in the CBPA filing, it appears the vegetation between the attraction and the Rhine is being impacted only to allow safe clearance of the attraction, etc. (you'll see where they drew the tree line on that diagram--and if they intended to clear the bank for other projects like access to a bridge, it's material to the CBPA and thus they may have wanted to include it then).
So what fairly low load bearing and low to the water application would concrete topped wood piling structures serve if not a bridge?
My "theory" now is that it is somehow for themeing of the Madrid attraction. I can't really theorize exactly how yet, and it is perpendicular to what appears to be the "track" path of the attraction. Maybe illuminating Madrid over the Rhine, especially the high point of the attraction, which is roughly at the top of the swale just inside the redacted area? We know JCC has some issues with lighting, but if they are "minimizing lighting on the attraction above 60 feet" in a way that focuses on the "lattice" like construction that doesn't conflict with the waiver? Maybe it is for water cannons like Maverick? Maverick's I'm pretty sure are below the water line, but with boat traffic, it's probably best to mount those on concrete pads on concrete piers--or perhaps wooden piles driven into the lake bed. Arguably, such theming "in" the Rhine would be much easier than on the vegetated steep north slope of the Rhine.
edit: Looking at the scale on the JPA diagram, there's plenty of navigable channel water in between impact areas 3 & 4 for the cruise. I really think these pads are for mounting something, not for a crossing.
FWIW, Cement/Stone capped logs is how the Brooklyn Bridge was built.