Highway tunnels are very expensive, but are often times more cost effective over the long-term compared to the cost of repeated repairs and maintenance in areas where mass wasting is difficult to control.

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Highway tunnels can be expensive to construct initially, but they provide a long-term solution to mass wasting and other maintenance issues in difficult-to-control areas. This can ultimately save money in terms of repeated repairs and maintenance.

Highway Tunnels Are Very Expensive, but Are Often Times More