US-Mexico Border Barriers
1848 Treaty of Guadalupe-Hidalgo specifying border line
1924 US Border Patrol
1986 Immigration Reform and Control Act (US)
1994 Operation Gatekeeper (Calif. + similar border tightening by US
borders in Arizona and Texas from 1983-97)
1996 Illegal Immigration Reform and Responsibility Act (IIRAIRA) (US)
2006 Secure Fence Act (US)
2018 Fund and Complete the Border Wall Act (proposed Aug. 2018)
2019 Trump's National Emergency Declaration (Feb. 15, 2019)
Total US Border Patrol budget (billions): 1991 $.3, 2000 $1, 2016 $2.6.
US-Mexico border (fiscal 2016): 86% of agents, 98% of apprehensions (of which about 1/2 were nationals of Mexico, about 1/4 from the "Northern Triangle" (Honduras, Guatemala, El Salvador) and 1/4 other).
Statistics on existing fencing: By 2012 about 300 miles of pedestrian fencing and 250 miles of vehicle barriers had been installed on the 1989 mile long US-Mexico border. When Trump took office, 654 miles of barrier had been erected. Since then (as of end of 2018) "40 miles of replacement barriers have been built or begun." In 2019, construction is "expected to start" on 61 more miles of replacement barrier," as well as on two projects extending existing barriers 14 additional miles along the Texas-Mexico border.
Pictures: from National Geographic (2016)
Dispatches from the US-Mexico border (NPR, 2018)
Biggs' funding bill (introduced, August 2018)
Fenced stretches per Washington Post (26-Jan-17)
Fenced stretches per New York Times (26-Jan-17)
This page last updated 15 February, 2019