From an infrastructure improvement point of few, state funded fiber beats all other uses of infrastructure tax dollars (I've been doing research as part of my 'Sunnyvale Fiber' project). At the state level, legislative support for a 'digital' easement allows for emminent domain type land offset cases (where the state comes in and says "for this parcel we're going to require an underground easement for fiber transit". The good news is that you can (if you choose to) bury these things 50+ feet down which protects them from most threats. Horizontal drilling capacity (some sitting idle in fracking fields) can be employed to create the necessary conduit for generally long lengths (up to nearly 5 miles or 25,000' by some estimates)

Adding water, power, freeways, and airports all cost more, and generate fewer net commercial opportunities.