Mention in detail about the solutions a designer would be suggesting as the challenges of underground utilities.

Underground utilities pose a unique set of challenges for designers due to their hidden nature and the complexity of the infrastructure. Here are some potential solutions a designer might suggest:

1. Utility Mapping: One of the first steps in addressing the challenges of underground utilities is to have a clear understanding of what is beneath the surface. This can be achieved through utility mapping, which involves using technologies like Ground Penetrating Radar (GPR) to create a detailed map of the underground utilities. This can help to avoid accidental damage during construction and can also assist in planning for future utility installations.

2. Use of Trenchless Technologies: Trenchless technologies, such as directional drilling or pipe bursting, can be used to install or repair underground utilities without the need for extensive excavation. This can help to minimize disruption to the surface and can also reduce the risk of damage to existing utilities.

3. Regular Maintenance and Inspection: Regular maintenance and inspection of underground utilities can help to identify and address issues before they become major problems. This might involve the use of CCTV inspections or other non-destructive testing methods to check the condition of pipes and cables.

4. Design for Future Expansion: When designing underground utilities, it's important to consider future needs. This might involve installing larger conduits than are currently needed to allow for future expansion, or designing systems in a modular way so that additional capacity can be added as needed.

5. Use of Durable Materials: The use of durable materials for underground utilities can help to reduce the need for maintenance and repairs. This might involve the use of corrosion-resistant materials for pipes and cables, or the use of protective coatings to extend the lifespan of the utilities.

6. Training and Education: Finally, ensuring that all workers are properly trained and educated about the risks and challenges associated with underground utilities can help to reduce the risk of accidents and damage. This might involve training on safe digging practices, or education about the importance of utility mapping and the use of locate services.