A guideline for the installation of culverts on forest roads
Loading...
Date
2000
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of New Brunswick
Abstract
There are many culverts installed in forest roads each year
that fail prematurely, due to improper installation techniques.
This report presents a general guideline for the proper
installation of culverts on forest roads. The guideline is based
on eleven common modes of failure identified from forty-two case
studies. This study was carried out from May to September, 2000.
It was concluded from this study that vertical deflection,
collapse and erosion were the most frequent failure modes. It
was also determined that the main causes to all the failures
found were inadequate compaction and improper depth placement of
the culvert. These to types of causes resulted in 38 of the 42
cases. These results were then used for the formulation of a
installation guideline to avoid the failures observed. The
culvert installation guideline presented at the end of this
report is a concise step by step guide to installing culverts.
There is an additional laminated field guide which highlights the
two most problematic steps, inadequate compaction and improper
depth placement of the culvert.
Information concerning basic soil mechanics, and culvert
structures are also presented in this manual as background
information, that is vital for road builders to know when
performing culvert installations . The installation guideline
will help lower road construction and maintenance costs.