Page 56 - Discover Summer 2022
P. 56

Built for Speed CONTINUED


      section, and other on-line sources like                   tricky little navigation lights hanging

      smithmountainlakelevel.com.  Reported                     down mid-span.   Then know and check

      level in one location of Smith Mountain                   your own vessel clearance height.  Use
      Lake may not reflect the exact level at                   caution, especially during and after high-
      other points along the channel.  This                     water events, and remember: we are

      level delta is largest when high flow rates               looking only at center span transits.

      up river or at the dam are experienced
                                                                Yes, there are reports of those that didn't
      due to natural run-off and mechanical
                                                                "fit" as well as "tall tales" of those too
      dam water level control.  Published level
                                                                embarrassed to report what happen to
      reporting can be as much as an hour
                                                                their VHF antenna, $300 trolling pole
      old.  Look at the trends to see if the lake
                                                                or roof off their center console.  Most are
      is falling or rising.  Without an actual
                                                                from transits other than center span, or
      water level gauge at the bridge, that
                                                                trying to get by under the first and fifth
      critical lake level value is still going to be
                                                                spans closest to land.
      approximate.
                                                                So here's the reality check neighbors:
       A vessel's height varies with draft (how
                                                                those variables in actual bridge height,
      low it sits in the water), list (any side-to-
                                                                flow rates, measuring locations, time
      side angle) and trim (is the vessel level
                                                                late in reporting, and vessel draft are all
      or up/down in the bow or stern).  Fixed
                                                                inputs into your own "fit" answer.  We
      ballast load (a motor), movable cargo
                                                                didn't even get into the gravitational
      (people) and consumable  loads (fuel and
                                                                effects of the moon.  If you are counting
      live wells) all have impact on your draft
                                                                on every inch of clearance you could
      and thus your height above the waterline.
                                                                very well be setting yourself up to hit the
       "Enough already, will I fit?"                            bridge!   Discretion is encouraged, as well

                                                                as having someone else check your math
       Take center span clearance (best shot is
                                                                before trying to "bridge limbo" with your
      to take 14 feet and cross under the second
                                                                boat.
      span out from the Franklin side) and add
      the distance the lake is below full pond                  Boating Season is Underway!  Boat

      (795 feet MSL)/subtract the distance the                  Smart,  Watch Your Wake and Please
      lake is above full pond.  We recommend                    Share the Lake with Kindness and

      you subtract at least a six inch safety                   Concern for Others.    SMLWSC
      factor from that expected clearance, due
                                                                Thank you all! - SMLWSC
      to all the variables pointed out, and those



      54     Discover Smith Mountain Lake  SUMMER 2022
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