Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO CSDIM:2020
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Culvert & Storm Drain System Inspection Guide
• Số trang / Page: 290

Phạm vi áp dụng / Scope of standard

INTRODUCTION TO THE GUIDE

In 1986, the Federal Highway Administration (FHWA) published the Culvert Inspection Manual as a supplement to the Bridge Inspector's Training Manual 70. This Guide updates the 1986 manual to address the need to inventory, quantify, and rate the condition of in-service culverts and to update the inspection and rating criteria to incorporate over 30 years of change since the original publication.