Protecting and Preserving Black Lake and the Surrounding Watershed

Posts Tagged ‘Alverno Dam’


Posted on March 9th, 2017

P-11730 – Alverno – Black Lake Levels Testing

The testing to bring the headpond (at the dam) down to the 608.5 mark began this past Sunday (March 5, 2017). By 6:30pm that day, we had the spillgate at Alverno open to 13 inch height opening and the units running at about 60% gate opening (and cavitating). Flow indications had flows (total) from the spillgate and units (powerhouse) at a combined flow of 950 cubic feet per second (cfs). However, please note that these flow measurements taken from a computer table for spillgate opening and wicket gate opening and were made several years ago when the headpond was at the 612 mark, or a head differential between pond and tailrace level of approximately 18 feet. Since the pond was actually at 608.5 and the head differential (from headpond to tailrace level) was at about 14.5 feet on Sunday, really the flow, therefore is reduced by approximately 20% to the 760 cfs mark.

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Posted on March 5th, 2017

P-11730 – Alverno Dam – Black Lake Levels Concerns

Good Morning All:

Further to Jim Tucker’s email,  I think Jim meant to say on Sunday afternoon when the temperatures get mild from this current cold spell, we will move the head pond down from its current level of 609.89 to the 608.5 level and hold it steady there.

We will do that for 48 hours into Tuesday afternoon. It appears that we will have until Wednesday afternoon for mild weather, then it will be turning frigid again. If we find that the lake level continues to drop, we will likely maintain the 608.5 until Wednesday.

However, we will assess after 24 hours and after 48 hours. We do believe with the warm temperatures Sunday and Monday that the Kleber dam outflow will pick up again.

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Posted on February 4th, 2017

BLA Partners with the Black River Hydro Limited Partnership

The Black River Hydro Limited Partnership (BRHLP), operators of the Kleber, Tower and Alverno dams, hosted a meeting on February 2, 2017 at the Forest Township Hall in order to present their operating history for the past 20 years and answer any questions that the public had.  Their report will be available on the Black Lake Association website within three weeks (blacklakeassociation.com).

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Posted on October 17th, 2016

Alverno Dam Notice

The Black Lake Association was notified by the owners of the Alverno Dam, that they will not be making repairs on the dam this year. The lake will now be lowered, as usual, in November, to its normal winter level. According to president of the Black Lake Association, Brett Trepanier, they started the lowering process but all the rain we received kept the lake level up, now by time they get it lowered it will be too cold to do the repairs. As we get more information, we will post.

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