Source: Ralph Terrero, Vincente E. Arrebola, Luis Aguiar, Rod J. Lovett, Richard A. Coates, Journal AWWA, Vol. 105 no. 6, June 2013
From the abstract:
By taking a “fix-it-first” approach and adopting a proactive infrastructure renewal program, the Miami-Dade Water and Sewer Department is making the most of limited replacement funds and extending the life of its infrastructure.