Mayor Player is tending to the business of building a great seaport. Hoist yours and earn Goods.
The New Seaport / Unlocking the Pier
Your level does not matter, you need to follow the main storyline.
Go to the Goals tree, locate "The New Seaport". Have you completed all the goals above it? Are any of those goals in your quest manager now?
Complete as many goals as you can to get your quest manager under 14 goals and "The New Seaport" (or main storyline goal) might appear. Note: The "Run For Governor" is more than 1 goal. Each unfinished questline is counted as another goal.
If this still does not solve your problem, try browsing or posting in this thread for possible solutions. Contact Zynga Support if necessary.