as the whole construction industry is promoting offsite manufacturing and modular construction it is important now to approach that industry from a manufacturing point of view. so to answer your question risk exists in every process from the pre-bid stage until contractors are not liable anymore.
I have a certain personal bias due to my research interests, but I would recommend including in your construction risk taxonomy the direct and indirect impacts of cyberattacks on construction technology (computers, networks, machinery, data), both over the internet and via radio frequencies, including potential for large-scale personal injuries and loss of life which are likely not adequately mitigated by existing health and safety practices.
The following references, including some examples of Crane Hacking from researchers at Trend Micro (see also video at
https://www.youtube.com/watch?v=k8F7glmbCNg), may be of interest.
Andersson, J., Balduzzi, M., Hilt, S., Lin, P., Maggi, F., Urano, A. and Vossele, R. (2019). A Security Analysis ofRadio Remote Controllers for Industrial Applications. [online] Documents.trendmicro.com. Available at: https://documents.trendmicro.com/assets/white_papers/wp-a-security-analysis-of-radio-remote-controllers.pdf
Brewster, T. (2019). Exclusive: Hackers Take Control Of Giant Construction Cranes. [online] Forbes.com. Available at: https://www.forbes.com/sites/thomasbrewster/2019/01/15/exclusive-watch-hackers-take-control-of-giant-construction-cranes/#7b8f26751d0a
MITRE. (2019). NVD - CVE-2018-17935. [online] Available at: https://nvd.nist.gov/vuln/detail/CVE-2018-17935
Nichols, S. (2019). That Saudi oil and gas plant that got hacked. You'll never guess who could... OK, it's Russia. [online] TheRegister.co.uk. Available at: https://www.theregister.co.uk/2018/10/24/triton_malware_attack/
Trend Micro. (2019). Exclusive: Hackers Take Control Of Giant Construction Cranes. [online] Available at: https://newsroom.trendmicro.com/news/exclusive-watch-hackers-take-control-of-giant-construction-cranes/%252319bec9