General
The town of North Attleboro, Massachusetts, is an affluent suburban community. It has a population of approximately 27,000 people and covers an area of
49.3 km2 (19 mi2). Its main economic base is retail, which attracts a large number of nonresidents
to area stores and strip malls. On December 9, 2003, approximately 40,000 people
were evacuated from an 8.1 km2 (3.14 mi2) area after a natural gas main was ruptured.
Approximately 25,000 people were evacuated from Emerald Square Mall and 15,000 people
were evacuated from the surrounding strip malls and from the several hundred nearby homes.
The area was highly congested at the time of the evacuation. It is difficult to determine precisely
what percentage of the community was evacuated, since many of the evacuees from the mall
were not residents of the area. It is estimated that approximately one-quarter of the residents
were evacuated. However, as much as one-half of the people present in the community at the
time, including both visitors and residents, were evacuated. The evacuation area was primarily
commercial/retail. Ethnicity, nationality, and age were not important factors in the evacuation.
The town is located approximately 40 to 48 km (25 to 30 mi) from a commercial nuclear power
plant, the Pilgrim 1 Boiling Water Reactor at the Energy Nuclear Power Plant in Plymouth,
Massachusetts.
THREAT CONDITIONS
The hazard that led to this evacuation was the rupture of a 40-cm (16-in) natural gas pipeline
belonging to Algonguin Natural Gas. The gas main was struck by a bulldozer operator who was
working at a construction site near a Wal-Mart Store. The incident occurred on a cold and
snowy Saturday during the height of the Christmas shopping season. Several eyewitnesses
commented that it sounded like a jet taking off. The incident and the evacuation took place in
the middle of the afternoon. It was cold outside and the roads were wet. The evacuation was
slightly hampered by both the snowstorm and the high level of pedestrian traffic. The local
newspaper reported that it resembled a war scene.