Since saying that on May 12, I've looked at the numbers a bit more. It seems that construction and infrastructure spending in general was obviously not directed at the most affected sector of the economy. While it would be helpful to stimulate the economy, I'm not convinced that it would be the best way to stimulate the economy, because it's not the sector that was affected the most.
In my humble opinion as a taxpayer, stimulating sectors that have been the most deeply affected by COVID-19 might be a better way to stimulate the economy, and infrastructure and construction were not the most affected sectors.