How does a bridge's weight limit compare to the road's weight limit?

The correct answer highlights that the weight limit of a bridge may differ from that of the road leading to it, and importantly, this limit will be posted for drivers to see. This is crucial for safety because bridges must be able to support specific weights, and if heavy vehicles cross a bridge that is not designed to handle them, it could lead to structural failure and dangerous situations on the roadway.

In many cases, local jurisdictions may establish different weight limits for roads compared to bridges based on factors such as the bridge's structural integrity, age, and design specifications. By posting these limits, authorities ensure that drivers are aware of the maximum load each structure can safely accommodate. This helps prevent incidents that could arise from exceeding those limits, thereby protecting the safety of all road users.