Inspections Thorough inspection is essential to effective maintenance. Knowledge of culvert material can predict the types of problems a culvert may have. Each material has specific weaknesses. Steel culverts are subject to corrosion and abrasion, and have a shorter life span than other materials. Aluminum culverts can sustain abrasion and have less strength.
Plastic culverts bend easily and are subject to ultraviolet degradation.
They are subject to impact damage at low temperatures. Concrete is the most durable material, but concrete and reinforcing steel still deteriorate. Cleaning Inspections frequently show that culverts require cleaning. Examine the culvert for visible cracks, changes in shape, corrosion or abrasion. Check upstream for trees, dead branches, and other debris that may obstruct the pipe.