(Michael S. Lockett / Juneau Empire) File

(Michael S. Lockett / Juneau Empire) File

Opinion: Power boats should not be permitted on Mendenhall Lake

If one sinks in the deepest parts of the lake, it is likely there forever.

  • By Jim Sepel
  • Wednesday, May 4, 2022 11:39am
  • Opinion

By Jim Sepel

After reviewing the USFS Mendenhall Glacier Visitor Facility Improvements Environmental Impact Statement which proposes allowing two 49-passenger gas/diesel powered boats or two 35-passenger electric boats (both requiring USCG inspections), I found several problems with these alternatives. First, when I asked the USFS for their “navigation chart” for Mendenhall Lake, they sent me their “bathymetric chart”. A bathymetric chart only gives a general “layered” view of the depths, which happens to show depths over 200 feet. For navigational purposes, a NOAA Hydrographic Chart is required. There is no NOAA chart for the lake. Thus, there is no chart that shows navigational hazards such as the boulders that glaciers leave behind or any other navigational hazards, especially along shorelines or where they propose to build their docks. These boats will have a 4-foot draft. Surely there are boulders out there?

Second, from my over 30 years of conducting grounding and sinking insurance damage claims, I have learned that “The Rock Always wins.” It doesn’t matter if the boat is a 20-foot North River, a 35-foot inspected tour boat (like the one that sank next to Aaron Island a few years ago due to “operator error”), or a 1,000-foot cruise ship like the Costa Concordia (of which I served as a consultant on that casualty, another “operator error”). If one or both of the tour boats collide, or ground, the thin (1/4-inch) aluminum hulls can easily fail, even at no wake speeds. The bilge pumps on either of these boats simply will not keep up with a serious hull breech. The USFS chart does show steep gradients leading down to over 200 feet in depth. A SCUBA salvage diver is limited to 20 minutes at 130 feet. Any attempt to salvage a vessel in over 200 feet(with no visibility) will require “compression diving,” which requires a tug and or barge with crane, and a decompression chamber. How would you get that on Mendenhall Lake? A sunken gas/diesel power boat would leak up to 300 or more gallons or fuel, not to mention the oil in the motors. Anyone can see that this places the Mendenhall Lake and the Mendenhall River (vital salmon habitat) at major risk. The cleanup all along the Mendenhall River would be extremely difficult. A sorbent boom can’t be anchored in deep water.

The EIS states the the risk of boating would be minor. Really? Likewise an electrical boat with a bottom hull full of batteries could leach lead and acid into Mendenhall Lake and then rapidly down river, forever. This could happen if the battery case is compromised in the grounding. At that depth, water pressure of 101 pounds per square inch could be devastating. Also, the EIS is severely lacking the following basic elements: an operations plan for how the boats will operate; a search and rescue plan; a salvage plan; pollution mitigation and cleanup plan; and a fuel transfer plan (they plan to fuel the boats from a fuel truck near Skater’s Cabin). And, to make matters worse, the Empire reported a few days ago that our Governor and his DNR Commissioner stated that “the public has the right to boating on Mendenhall Lake.” I’m an avid boater; but, I don’t think I have the right to risk polluting such a pristine habitat.

The EIS plans for 999,000 visitors per summer. Two boats simply won’t be enough to provide equal access as described in the EIS. More boats makes the risk that much worse. Also, I can’t imagine that the two-lane road to the visitor center could accommodate all those buses. The EIS stated that the USCG said to “assume that ML is navigable”. The truth is, as of today, the USCG says that it is not navigable and that the river is only navigable up to Montana Creek (this is reportedly under study and could take years). During the summer, the river is used commercially for non-motorized tours down the river. Finally, the EIS violates the basic premise of the 1969 NEPA act, which says that the federal government will analyze all impacts this project may have to the environment. In my opinion, the USFS has not done that and this EIS is totally inadequate. It is just too risky to put any motorized boat on Mendenhall Lake. There is no question that tourism is great for my business; however, for the past 15 years I have been asking my friend, Kirby Day (local cruise ship representative): “How many tourists are enough?”

• Jim Sepel is an accredited marine surveyor, a retired United States Coast Guard commander, member of American Boat & Yacht Council and state of Alaska Boating Safety Advisory Council; and president of Sepel & Son Marine Surveying Inc., since 1992. Columns, My Turns and Letters to the Editor represent the view of the author, not the view of the Juneau Empire. Have something to say? Here’s how to submit a My Turn or letter.

More in Opinion

Web
Have something to say?

Here’s how to add your voice to the conversation.

People watch a broadcast of Former President Donald Trump, the Republican presidential nominee, delivering a speech at Times Square in New York, on Wednesday, Nov. 6, 2024. (Graham Dickie/The New York Times)
Opinion: The Democratic Party’s failure of imagination

Aside from not being a lifelong Republican like Peter Wehner, the sentiment… Continue reading

A steady procession of vehicles and students arrives at Juneau-Douglas High School: Yadaa.at Kalé before the start of the new school year on Thursday, Aug. 15, 2024. (Mark Sabbatini / Juneau Empire file photo)
Opinion: Let’s consider tightening cell phones restrictions in Juneau schools

A recent uptick in student fights on and off campus has Juneau… Continue reading

A map shows state-by-state results of aggregate polls for U.S. presidential candidates Donald Trump (red) and Kamala Harris (blue), with states too close to call in grey, as of Oct. 29. (Wikimedia Commons map)
Opinion: The silent Republican Party betrayal

On Monday night, Donald Trump reported that two Pennsylvania counties had received… Continue reading

(Juneau Empire file photo)
Letters: Vote no on ballot measure 2 for the future of Alaska

The idea that ranked choice voting (RCV) is confusing is a red… Continue reading

(Laurie Craig / Juneau Empire file photo)
10 reasons to put country above party labels in election

Like many of you I grew up during an era when people… Continue reading

(Juneau Empire file photo)
Letter: Alaskans are smart, can see the advantages of RCV and open primaries

The League of Women Voters is a nonpartisan organization that neither endorses… Continue reading

Tongass National Forest. (U.S. Forest Service photo)
My Turn: Why I oppose privatization of the Tongass rainforest

Sen. Lisa Murkowski has been trying to privatize the Tongass for years.… Continue reading

(Juneau Empire file photo)
Letter: Supporting ranked choice voting is the honest choice

Some folks are really up in arms about the increased freedom afforded… Continue reading

(Clarise Larson / Juneau Empire file photo)
My Turn: Election presents stark contrasts

This election, both at the state and federal level, presents a choice… Continue reading

(Juneau Empire file photo)
Letter: Praise for Begich overlooks his support of Trump

Tom Boutin’s My Turn column praised Nick Begich. However, he left out… Continue reading

Former Juneau Mayor Bruce Botelho discusses ranked choice voting at a Greater Juneau Chamber of Commerce weekly luncheon on June 30, 2022. (Clarise Larson / Juneau Empire file photo)
My Turn: Vote no Ballot Measure 2 and protect open primaries and protect our democracy

The focus of last week’s Juneau World Affairs Forum was the rise… Continue reading