I could be mistaken, but it's always been my understand that only small pockets of the park are classed as flood zone 3b. The majority of the park is in a flood zone, but not this 'inconvenient' flood zone category. For example, Swarm has a couple of supports in an area that is classed as flood zone 3b, but the majority of the ride is not.
I think
@CrashCoaster was mixing up zone 3 in general with zone 3b... Most of the coasters do in fact lie within zone 3, including all of Swarm island, but not within zone 3b.
This is really really sticky. It seems there is a precedent for allowing the construction of support columns within zone 3b, and Thorpe / Mack have designed the coaster on this basis.
To quote a response from Thorpe to the EA
The support columns of the rollercoaster (which separately can be considered water compatible) are the only element of the scheme located within Flood Zone 3b.
So clearly Thorpe believe that they are allowed to build (water compatible) supports within 3b, but the EA have not (as far as I can see) addressed this belief at all in any of their correspondence since*. This is either an oversight, or indicates that the EA has a completely different understanding.
So with the fact that Thorpe acknowledges that parts of the development fall within 3b and the EA holding strong that the only way to overcome their objection is to "demonstrate that the development is not within Flood Zone 3b - Functional Floodplain. " I do wonder if the only solution is to move those supports.
Hoping the council will approve it anyway is absolutely not an option. As the EA has requested that they are contacted should they be minded to approve it anyway, and have basically said that they will make representations for the application to be 'called in.' So if the council were to just ignore the EA, and approve it, then it would not be lawful.
Advice to LPA – Call-in If you are minded to approve this application for major development contrary to our flood risk objection, we request that you contact us to allow further discussion and/or representations from us in line with the Town and Country Planning (Consultation) (England) Direction 2021. This statutory instrument prevents you from issuing planning permission without first referring the application to the Secretary of State for Housing, Communities and Local Government (via the National Planning Casework Unit) to give them the opportunity to call-in the application for their own determination. This process must be followed unless we are able to withdraw our objection to you in writing. A failure to follow this statutory process could render any decision unlawful, and the resultant permission vulnerable to legal challenge.
EDIT: *Just read the EA's latest response, they have now addressed it, it's basically a "FU, you can't build anything there, not even 'water compatible' supports... Build it somewhere else you numpties!"