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tom.smith  
#1 Posted : 07 March 2023 15:47:30(UTC)
Rank: New forum user
tom.smith

Hello all, 

I would like to get your opinion on what inforamtion is required from the "Principal designer role" (modular construction sites)

Is a pre construction information pack still required? Do Design risk asessements need to be completed. My designer insits after completing the 2 day CDM princapal designer training, that a design risk assessment is not required becasue the "risks" are already designed out. The PD trainers take was that a simple folder with surveys was all that was required. 

peter gotch  
#2 Posted : 07 March 2023 16:20:38(UTC)
Rank: Super forum user
peter gotch

Hi Tom

There are three key "deliverables" with CDM:

1. The "pre-construction information"

2. The "construction phase plan"

3. At least one "health and safety file" to inform work in the future on handed over assets.

Nowhere does CDM mention a "design risk assessment" and may be you don't need a document with that title.

Now I don't know what 2 day course this PD has been on, but attending a 2 day course does not a PD make.

Under CDM 2007, the PD (along with every other duty holder) had to be "competent" but that word was replaced with a requirement for "skills, knowledge and experience" in CDM 2015.

Problem is that the guidance supporting CDM 2015 was made deliberately "lite" to keep a deregulatory minded Government happy and one of the results is that it provides much less clarity than the Approved Code of Practice and guidance that supported CDM 2007 - which you can probably still find on the HSENI website if you search for L144.

So, one of the basic principles of CDM 2007 was that each duty holder including the forerunner of the PD was entitled to assume that the Client would NOT appoint designers and contractors who were NOT competent.

Thence it was unnecessary to tell a contractor "how to suck eggs".

You didn't have to say that a scaffold needs to have proper foundations, good foundations, ties and bracing, guard-rails and toe-boards etc. 

Instead you needed to tell that contractor about the "significant risks", which was defined on page 98 right at the end of L144:

(a) those risks which were not obvious

(b) those which were unusual

(c) those likely to be difficult to manage

If you follow that principle then you can work out what should be in the pre construction information (and also the health and safety file or files) and what is best omitted not least as it is likely to obscure the information that is important.

So, may be all that information about "significant risks" could be on drawings e.g. in so called SHE boxes.

But, it is very unlikely that all the significant risks have been designed out.

The chances are that this modular construction is NOT in the middle of nowhere. So, there will be site specific issues that need to be brought to the attention of duty holders.

Whether that be a school adjacent to the delivery route, overhead and underground services, ground contamination etc etc.

Presumably the modules will be craned in, so are there constraints as to the positioning of the crane. Do you need to construct foundations simply to give the crane a safe place to operate from?

...and you might have rules set by the Client as to their minimum standards, which may or may not be hidden deep in the Contract specification. Better in a standalone document (AS WELL) to highlight them.

Personally my starting point would be the list of issues to be addressed in L144, so that if only for assurance you can say "yes, that is covered on drawing X and doesn't need further comment", "that is not applicable to this project", "that is in the site investigation report" etc etc.

Edited by user 07 March 2023 16:21:49(UTC)  | Reason: Typo

achrn  
#3 Posted : 08 March 2023 08:58:05(UTC)
Rank: Super forum user
achrn

There is no statutory duty for a designer of construction work to produce a separate design risk assessment document.

Regulation 9 of CDM requires that designers avoid foreseeable risks to the health and safety of people affected by the design.  Designers must consider and eliminate significant hazards (as far as is reasonably practicable) and reduce the risk associated with hazards where elimination is not possible.  Clearly, this requires that some effort be put into identifying potential risks, assessing whether they are significant and then considering whether they can be eliminated or reduced, but this does not require the production of a specific type or format of document – it does not require a designer risk assessment document (DRA).

It certainly does not require designers prick a number from 1 to 5 and then multiply it by another number from 1 to 5, and then do it all over again with some imagined 'controls'.

It is sometimes said that Regulation 3(1) of the Management of Health and Safety at Work Regulations 1999 (MHSWR) is relevant because it requires a suitable and sufficient assessment of the risks arising out of work activity (e.g. designs).  Although there is no legal requirement for the risk assessment itself to be in writing, regulation 3(6)(a) of MHSWR does require the significant findings of the assessment to be recorded where an employer employs five or more people.  However, in terms of design, the significant findings of the assessment process will be the finished design, together with all relevant drawings and any accompanying notes.  That is, broadly as your designer argues - the design deliverables are the outcome of the process of design within which risks were assessed.

Paragraph 113 of the CDM ACOP to the previous revision of the regulations explicitly stated “compliance with regulation 11 of CDM 2007 will usually be sufficient for designers to achieve compliance with regulations 3(1), (2), and (6) of MHSWR as they relate to the design of the structure”.

There is a statutory duty (CDM regulations 9(3)(b) and 9(4)) that designers communicate information about significant risks to other parties, including other designers and the contractors involved.  The preferred means of doing so is generally by means of notes on drawings, not in a separate DRA document (site staff read drawings, they don't in general go looking for a DRA).

However, although designers are not legally required under CDM2015 to keep records of the process through which they achieve a safe design, it would be a foolish designer that did not keep some records of the process, if nothing else to show the judge...

Edited by user 08 March 2023 08:59:24(UTC)  | Reason: spilling

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