There shall be and there is hereby created and granted a statutory mortgage lien upon such municipal public works constructed, reconstructed, established, acquired, improved, renovated, extended, enlarged, increased, equipped or repaired (including replacements) under the provisions of this article, which shall exist in favor of the holder of said bonds, and each of them, and to and in favor of the holder of the coupons attached to said bonds, and such municipal public works shall remain subject to such statutory mortgage lien until payment in full of the principal of and interest upon said bonds.