Sorry. Some of those funds might go toward infrastructure projects (shovel-ready) but the jobs that they create will necessarily be seasonal in nature (we don't do a lot of road-building, paving, and bridge-repair when the ground is frozen). In addition, there could be bottlenecks that would further depress private concerns. My niece's husband is an experienced asphalt paver (generally foreman on small-to-med jobs) who ended up cutting firewood, etc, all last year because the high price of paving (petroleum-based) and the high price of diesel to transport the material, keep it hot, and fuel the spreaders and rollers caused private companies to cancel their paving projects. If you own a strip-mall and contracted to get the parking lot re-paved only to see the economy tanking and many of your best tenants going under, will you re-pave the parking lot? What will happen if stimulus money goes to high-volume infrastructure projects? I fear that production bottlenecks at local asphalt plants will not only starve small pavers of materials, but also price them out of the market. No matter how this plays out, the big bidders with the clout to take large state-sponsored projects will do OK. We may lose a lot more small paving companies this year.
I have highlighted only one narrow industry that I happen to know a bit about, both from work experience, professional experience, and family contacts in the smaller-scale businesses. I'm sure that there will be a LOT of unintended consequences.