Use NOAA Chart 11491.
The bridge has a 40-foot closed vertical clearance, which increases to 135 feet when the spans is lifted to its highest position. There is 350 feet of horizontal clearance in the center span.
Depending on schedule, the bridge can be opened by horn signal (one long, one short) or by hailing the bridge tender on VHF Channel 09. (All bridges in the state of Florida must be hailed on VHF Channel 09.)