* Prestressing of the FRP reinforcement was required because the theoretical results
 indicated that it improved both the stiffness and the ductility of the members and
 therefore the stiffness and ductility of the system.

* Using piles with two CFRP grid layers provided pre-cast prestressed CFRP reinforced
 pile bents with approximately 67% of the ductility of the new intact steel prestressed
 pile bent.

* The pre-cast prestressed CFRP reinforced pile bents had the highest ductility factor of
 all the FRP reinforced piles bents. Although lower than the ductility factor of a new
 intact steel prestressed pile bent these pile bents did compare favorably with the steel
 prestressed pile bents with minor, moderate or severe corrosion damage. Actually
 they exhibited superior properties to the moderately corroded steel prestressed pile
 bent in both ductility (30% higher) and strength because the moderately corroded pile
 bent had a strength reduction of approximately 35%. The steel prestressed pile bent
 with minor corrosion damage had higher ductility but its strength was reduced by
 approximately 15%. The severely corroded pile bent did have a higher ductility but its
 strength degradation was severe amounting only to approximately 35% of its
 theoretical capacity.

* Because corrosion damage will take place in the early stages of the life of the bridge
 the steel prestressed pile bents will have an advantage over the pre-cast prestressed
 CFRP reinforced pile bents only during the first years of the life of the bridge. Once
 corrosion causes damage the advantage of the steel prestressed pile bents will no
 longer exist. With more corrosion damage accumulating the advantage will be with
 the pre-cast prestressed CFRP pile bents that are not expected to lose strength or
 ductility during their lifespan.

* Providing more confinement to the concrete core has the potential to further improve
 the ductility of the FRP reinforced pile sections which could translate into further
 improvement in the ductility of the pile bents. This has the potential to produce
 ductility similar to the ductility of the new intact steel prestressed pile bents for the
 pre-cast prestressed CFRP reinforced pile bents which will make the pre-cast
 prestressed CFRP reinforced pile bents more advantageous than the steel prestressed
 pile bents throughout the lifespan of the bridge.