Southwest Border Security: Actions Needed to Enhance CBP's Maintenance of Roads Used for Its Operations, Report to Congressional Requesters [open pdf - 7MB]
"To secure the southwest border between ports of entry, Border Patrol uses approximately 5,200 miles of roads, most of which are owned by other entities, both private and public. CBP [Customs and Border Protection] estimates spending $12.5 million in fiscal year 2016 to maintain and repair roads Border Patrol uses for its operations, including roads CBP does not own. GAO [Government Accountability Office] was asked to review Border Patrol's use and maintenance of roads for its border security operations. This report examines the extent to which (1) CBP has processes and authorities to access and maintain roads for its security operations and (2) CBP's operations are affected by its use of public roads it cannot maintain, and options CBP could consider to address any needed maintenance. GAO selected three southwest border sectors to visit based on the sectors' total mileage of non-owned roads and number of apprehensions of illegal border crossers. GAO interviewed officials from Border Patrol, and from selected federal, state, local, tribal, and private and community organizations. The information collected from these entities is not generalizable, but provides valuable insights."
Government Accountability Office: http://www.gao.gov/