Nearly 15,000 miles of natural gas pipeline stretch across West Virginia, and as Sissonville residents now know, accidents can happen.

Federal regulators say there have been 20 significant incidents involving deaths, injuries or major property damage in West Virginia in the last decade.

The worst was in April 2006, when four men at a Canaan Valley construction site were killed in a blast later blamed on a cracked pipe.

Officials have since re-opened I-77 in Sissonville following Tuesday's blast.