To avoid costly repair and liability issues, a property manager’s, facilities manager’s and business owner’s exterior maintenance plan should include regular audits of all the property’s sewer drains and utility holes. Sewer drains and manholes can be found in parking lots, basements, backyards and alleys and with proper maintenance, may last a lifetime. Even with long-lasting characteristics, exposure to outdoor elements plays a role in the lifespan of drains and manholes that are both susceptible to deterioration.