ROAD UPGRADING (UNPAVED TO PAVED) BASED ON GRAVEL ROAD  STRATEGIES, TRAFFIC BENCHMARK FOR UPGRADING TO PAVED ROAD STANDARDS (HDM-4 PROJECT ANALYSIS), CERVANTES-BONTOC ROAD, K0387+503-K0388+140
Ilocos Sur 2nd DEO
Region I
A.I.P. CONSTRUCTION (32458)