What advantages do reinforced-concrete piled jetties have over timber jetties?

When considering the construction of piled jetties, the primary advantage of using reinforced concrete over timber is its superior durability. While timber is a popular choice due to its availability and ease of repair, it is susceptible to deterioration—particularly in the area between wind and water—and can be damaged by marine borers in warmer waters.1

In contrast, soundly constructed reinforced-concrete jetties offer long-term resilience. However, this durability comes with trade-offs: attaching bracing and performing subsequent maintenance or repairs on concrete structures is significantly more complicated than with timber, which is readily amenable to such workmanship.1