TUCSON, Ariz. -- A plan for a proposed underground pipeline route through Arizona's deserts is calling for the use of boulders to keep out smugglers and immigrants trying to enter the country without legal permission.
The Arizona Daily Star reported that measures are part of Kinder Morgan Energy Partners' access-control strategy. The measures are outlined in a document Kinder Morgan filed with the federal officials earlier this month.
The company is seeking to build a 59-mile Sierrita natural gas pipeline through the Altar Valley southwest of Tucson to Sasabe.
The plan also calls for fences, timber debris, signs and pipe barriers along the route.
A top Kinder Morgan official said these strategies have worked for gas pipeline projects in Oregon, Utah and Wyoming.
Altar Valley ranchers who oppose the pipeline said they're still dubious the control measures.
Information from: Arizona Daily Star, http://www.azstarnet.com