Here's hoping its big lift is actually completed
http://www.nintendoworldreport.com/news/41173/splatoon-weekly-update-hammerhead-bridge-coming-to-map-rotation
The map rotation for Splatoon will expand tonight / tomorrow with the addition of Hammerhead Bridge, just in time for use as a potential Splatfest map.
The bridge is a two-level area, with many spots covered by grating to allow for splatting of those above or below you. There are also some deck areas on the bridge that allow for some true splat from above.
Hammerhead Bridge will open for the first time at 10 p.m. EDT, 7 p.m. PDT this evening, and early tomorrow in Europe.