Bribes for infrastructure is not how modern days high level corruption works in Russia. What happens is that for various preferences that a company receives from the state like tax rebates, cheaper electricity etc. one pays back to the official who authorized the deal. The payment (otkat or "rollback" in Russian) is typically indirect, like using a supplier or outsourcing to a company where the official or their relatives have a stake.

The direct bribes is really for low-level clerks like police officers or fire hazard inspector s.