- In Iowa there are 41,410 miles of hazardous liquid and natural gas pipelines in Iowa. There are 51 pipeline operators in Iowa. (2010 Iowa Pipeline Association)
- Iowa's pipeline system provides the state with liquid petroleum, natural gas, anhydrous ammonia, crude oil and highly volatile liquids.
Iowa Pipeline Association
Iowa Pipeline Awareness
U.S. DOT's Pipeline and Hazardous Materials Safety Administration
National Pipeline Mapping System