AMH was previously engaged by Manila North Tollways Corporation in 2011 and in 2015 to perform a detailed inspection and inventory of critical slopes along the alignment of the Subic-Clark-Tarlac Expressway (SCTEx). Based on the results of the assessments, AMH was able to identify eight (8) high risk areas among the thirty three (33) sites along the stretch of the expressway.

MNTC engaged AMH once again to conduct and provide geodetic survey, geotechnical and geologic services, hydrologic study and drainage design, project cost esimates, and technical specifications on the mentioned high risk areas along the alignment of SCTEx.