Local Road Management Manual 125 Length of Vertical Minimum length of 60 m Curve • Minimum length of 60 m Design Speed 60 kph for lfat terrain 40 kph for rolling terrain • 30 kph for all terrain type 30 kph for mountainous Longitudinal Minimum of 0.50% on cut • Minimum of 0.50% Grade section and maximum of on cut section and 12% on cut/ifll section maximum of 12% on cut/ ifll section • Cut slope of 1.5:1 • Cut slope of 1.5:1 to 1:1 to 1:1 for common for common materials Side Slope Ratio materials • Cut slope of 0.5:1 to 1:1 (H:V) • Cut slope of 0.5:1 to for rippable rock 1:1 for rippable rock • Cut slope of 0.25:1 to • Cut slope of 0.25:1 0.5:1 for hard/solid rock to 0.5:1 for hard/solid • Minimum ifll slope of rock 1.5:1 • Box culvert: 25-year • Box culvert: 25-year return period with return period with suiffcient freeboard to suiffcient freeboard to contain the 50-year contain the 50-year lfood Road Drainage lfood • Pipe culvert: 15-year • Pipe culvert: 15-year return period with return period with suiffcient freeboard to suiffcient freeboard to contain the 25-year lfood contain the 25-year • Minimum size of 910 mm lfood in diameter Slope Protection As needed As needed Road Safety Refer to DPWH Highway Refer to DPWH Highway Devices including Safety Safety Pavement Design Standards, Part 2 Design Standards, Part 2 Markings (May 2012) (May 2012) Accessibility Facilities/ Requirements mandatory for Persons with Disability mandatory