Did Madeleine McCann meet the same fate as Aisling Symes?

[John]

The manholes near block 5 are regularly disinfected against cockroaches, a child falling into these ones at least would not be lost given that the outlet pipe is a mere 6" diameter.

[Robittybob1]

Precisely Misty. Hopefully OG have already determined the exact inspection cover (easy by short visit with connected laptop and streetview), got PJ to check whether it is rainwater or foulwater and who replaced the cover and frame and at what time. If it was replaced before evening then it's irrelevant.

In the Symes case the cover was in nearly in position but it was still capable of rotating on the balance points.  When the girl walked over it, it flipped and fell back down again, looking closed but actually a lethal trap.
Cadaver dogs could be called back in.

[pegasus]

The manholes near block 5 are regularly disinfected against cockroaches, a child falling into these ones at least would not be lost given that the outlet pipe is a mere 6" diameter (snip)

Agreed John but there are two different types of drains running side by side down Rua Martins.
In this photo a short distance downhill from 5A you can see there are pairs of inspection covers extending down the road - there is a foulwater drain, and a rainwater drain.
If you remove an inspection cover of the foulwater drain it may look like your photos John, small diameter.
But if you remove an inspection cover of the rainwater drain, IMO you will find a larger diameter pipe.

[John]

Agreed John but there are two different types of drains running side by side down Rua Martins.
In this photo a short distance downhill from 5A you can see there are pairs of inspection covers extending down the road - there is a foulwater drain, and a rainwater drain.
If you remove an inspection cover of the foulwater drain it may look like your photos John, small diameter.
But if you remove an inspection cover of the rainwater drain, IMO you will find a larger diameter pipe.

The drains which tend to have large diameter pipes and deep manholes are associated with the storm water run off.  I don't think there are any on that particular street.

[pegasus]

In the Symes case the cover was in nearly in position but it was still capable of rotating on the balance points.  When the girl walked over it, it flipped and fell back down again, looking closed but actually a lethal trap.
(snip)

Yes that's probably how it happened.
A searcher found it nearly in position, but upside-down, so it must have rotated 180 when stepped on.

[pegasus]

The drains which tend to have large diameter pipes and deep manholes are associated with the storm water run off.  I don't think there are any on that particular street.

There are 2 drains on R Martins, proven by the pairs of inspection covers, One must be foulwater, the other must be stormwater/rainwater. And further proof is the storm/rainwater inlets along both sides of road.

[mercury]

The drain theory is only plausible if one believes all the cadaver dog alerts ONLY surrounding the mccanns are false

[pegasus]

In the Symes case the cover was in nearly in position but it was still capable of rotating on the balance points.  When the girl walked over it, it flipped and fell back down again ..., (snip)

Same thing happened in another case posted earlier by John, a slightly out of position round cover flipped when stepped on.   http://www.dailymail.co.uk/news/article-2979564/Boy-9-plunged-manhole-stepped-faulty-cover-flipped-like-coin-smacking-chest.html

[pegasus]

... and a video of a slightly out-of-position cover flipping when stepped on
http://www.dailymail.co.uk/news/article-2731123/Three-year-old-boy-narrowly-escapes-falling-drain-manhole-cover-gives-way-beneath-feet.html

[John]

There are 2 drains on R Martins, proven by the pairs of inspection covers, One must be foulwater, the other must be stormwater/rainwater. And further proof is the storm/rainwater inlets along both sides of road.

Yes I agree but I am talking about the really big emergency storm drains some of which which you can walk in.

[pegasus]

Yes I agree but I am talking about the really big emergency storm drains some of which which you can walk in.

http://www.anorak.co.uk/wp-content/gallery/madeleine-mccann-in-pictures/4689977.jpg

John your photo is of the ordinary rainwater drain outlet south of the church.
Water from the R Martins rainwater drain flows to the outlet in your photo IMO.
 

[John]

John your photo is of the ordinary rainwater drain outlet south of the church.
Water from the R Martins rainwater drain flows to the outlet in your photo IMO.

Yes that's correct but I don't know which route the pipe takes from the top of the town down to the beach.

[pegasus]

Yes that's correct but I don't know which route the pipe takes from the top of the town down to the beach.

There are hundreds of rain/stormwater pipes under the streets of the town, they converge to several rainwater outlets on the shore, for example one is south of church (your photo with searchers inside) and another is at end of Rua das Fontainhas which is identical large diameter.

[John]

There are hundreds of rain/stormwater pipes under the streets of the town, they converge to several rainwater outlets on the shore, for example one is south of church (your photo with searchers inside) and another is at end of Rua das Fontainhas which is identical large diameter.

Indeed, a searchers nightmare.

[Alice Purjorick]

Same thing happened in another case posted earlier by John, a slightly out of position round cover flipped when stepped on.   http://www.dailymail.co.uk/news/article-2979564/Boy-9-plunged-manhole-stepped-faulty-cover-flipped-like-coin-smacking-chest.html

The cover the lad stepped on was a Class A for use in grassed and pedestrian areas, like it says on it Class A150. It could also have been fabricated from plastic as the design superload would be three fifths of five eighths of FA.
A manhole cover in a road taking only slow moving heavy traffic would be, in the UK, called class C250,
If you want to argue the ins and outs of the traffic loading gimme the Portuguese design codes.
Back to the plot; Class C weights kick off at 55kg for a 450mm diameter job.
I leave you all to calculate and debate.
Useful references European Standard BS EN124 and of course WPCF Manual of Practice #9.
It's much more accurate than guessing but not as much fun I guess