The Texas transport department will present in about two months the study for the building of the high-speed passenger rail line that will link the US and Mexico.
The project will transport passengers between San Antonio in Texas and Monterrey in Mexico's Nuevo León state, US congressman Henry Cuellar was quoted as saying by Mexican newspaper El Financiero.
Monterrey is the country's third largest city and an important business hub.
Cuellar did not respond to BNamericas' request for comments.
Unveiled in January 2014, the project is estimated to cost US$1.5bn, according to local media reports.
The rail line is expected to run between Monterrey and Oklahoma, with stops in Dallas, Fort Worth, Austin, San Antonio and Laredo.