Affordable manhole inspection program
sees big return
Problem / Greenwood Metropolitan District is a special purpose district in Greenwood County, South Carolina, originally started to provide sewer conveyance and treatment to the area. However, in 1999 GMD took over the collections systems that fed into their trunk lines. What the district received was a patchwork of 38 collections systems, including the city of Greenwood’s system, which had pipe and manhole assets in excess of 100 years old.
Solution / One of GMD’s first steps was identifying assets, including mapping manholes using Esri software. This hunt took almost three years, but the final tally showed more than 8,700
