05-Stormwater-Drainage_Part1.pdf [pdf, 20 MB]
...FOR FLEXIBLE PIPELINES. 9. CULVERTS OVER 3.4M2 IN CROSS SECTIONAL AREA ARE DESIGNED IN GENERAL ACCORDANCE WITH WAKA KOTAHI BRIDGE MANUAL SP/M/02 THIRD EDITION. 10. CULVERTS WITH FISH PASSAGE PROVISIONS ARE DESIGNED IN GENERAL ACCORDANCE WITH NATIONAL ENVIRONMENTAL STANDARDS FOR FRESHWATER (NES FM) REGULATIONS 2020. 11. ONLY CULVERTS ASSOCIATED WITH THE MAIN HIGHWAY WORKS HAVE A UNIQUE CULVERT ID REFERENCE AND ARE DETAILED IN THE CULVERT SCHEDULE. OTHER MINOR CULVERTS FOR LOCAL ROAD DRAINAGE...