In terms of existing bridges, what does "rehabilitation" refer to?

The term "rehabilitation" in the context of existing bridges specifically refers to the process of restoring structural integrity while maintaining the bridge's ongoing functionality. This can involve various methods aimed at repairing or upgrading components of the bridge to ensure it meets safety standards and can effectively serve its intended purpose.

Rehabilitation typically does not imply a complete rebuild but rather focuses on restoring the essential aspects of the bridge that allow it to continue supporting traffic and loads safely. This could include reinforcing or replacing critical structural elements, repairing cracks, and making necessary adjustments to bring the bridge up to current codes without compromising its historical or functional aspects.

Improving aesthetic value and landscaping nearby, upgrading lighting and signage, or total reconstruction would fall into different categories of bridge work, each primarily addressing different needs or objectives beyond the immediate structural maintenance and integrity that rehabilitation focuses on.