There's not a lot of them and as a percentage of total jobs, it is declining every year. Projects should be determined by ROI and be forward looking. Focusing on urban areas where it we get bigger multiplier on our economy and is forwarding looking as that is where the jobs are being created. We have lots of people in rural areas with no jobs and we have urban areas which have labor shortages.

https://www.ers.usda.gov/topics/rural-economy-population/emp...