Through all-too-frequent encounters with civil engineering and infrastructure translations, I have learnt that 'kruisingen met waterstaatswerken' is the term used by Rijkswaterstaat in NL to refer to the intersection of two types of infrastructure routes (roads, waterways, pipelines, etc., etc.). This may be too NL-specific or too general, so 'werkzaamheden aan kruisingen met hoofdverkeerswegen' might be a good option.