The relocation, raising, lowering, rerouting, changing of grade, or altering of construction of a highway, railroad, electric transmission line, telegraph or telephone property or facility, or pipeline made necessary by the actions of an issuer shall be accomplished at the sole expense of the issuer, who shall pay the cost of the required activity as necessary to provide comparable replacement, minus the net salvage value of any replaced facility. The issuer shall pay that amount from the proceeds of bonds issued to finance a system.