Manitowoc County Lakes Association

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Harpt Lake

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Harpt Lake News

    All hands on deck this 4th of July to stop AIS in Wisconsin

     


    FOR IMMEDIATE RELEASE

    Madison—Thousands of Wisconsinites will take to the water this Fourth-of-July for the state's busiest boating holiday of the year. During the tenth annual Landing Blitz, July 3-7th, 2019, many boaters will be greeted at landings and access points by Glacierland RC&D and Wisconsin DNR staff, as well as volunteers sharing a simple, but powerful message: YOU can protect lakes, rivers, and streams from aquatic invasive species.

    read full article

    Valders Journal covers MCLA Guest Speaker Darren Kuhn

    Darren Kuhn has collected many stories in his career as a recreation safety warden, along with a strong desire for people to stay safe while having fun. Kuhn, who works for the state Department of Natural Resources, recently spoke to the Manitowoc County Lakes Association during a meeting in Manitowoc.

    read full article



Harpt Lake, April 2015
by Ken & Karen Schuler, TrawlersMidwest.com
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Click on the maps to enlarge. Bathymetric Map Courtesy of and Copyright Sportsman’s Connection, based on Wisconsin DNR data. Watershed map courtesy of Manitowoc County Soil and Water Conservation Department. New! Zoom in even closer with this new interactive watershed mapping tool.  

MCLA Lake Director: Dan Dufek

Location/Directions: North Lake Road, Town of Gibson. Take Interstate 43 North from Manitowoc to STH 147, East on STH 147 approximately 3 miles to Harpt Lake Road. North on Harpt Lake Road 1.75 miles to North Lake Road. West .2 miles to landing.


About Harpt Lake

Lake Health

Recreation

  • Features: Parking for 4 car/trailer units is provided at the public access to this 31 acre lake, which includes a boat launch and fishing pier. An additional boat launch ramp, fishing piers and swimming beach are located on the east side of the lake at the Larrabee Sportsman’s Club. Lighting present. No restrooms.
  • Nearby establishments: Larrabee Sportsman’s Club.
  • Boat Ramp: Concrete ramp, 8% slope, 3 ft launch depth, boarding dock.
  • Launch Fee: The daily fee is $5 and the seasonal fee is $20.
  • ADA Accessibility Features: No. Not ADA accessible.
  • Restrictions: Motor boats are permitted. Entire lake is “slow no-wake.”  Wisconsin boating handbook
  • Manitowoc County Map and Photos:
    http://www.co.manitowoc.wi.us/departments/i-p/parks/lake-access/harpt-lake/

Statistics

  • Surface Area: 31.4 acres
  • Depth: Max 54′, Mean 20′
  • Shorelength: unknown
  • Bottom: 5% sand, 20% gravel, 5% rock, 70% muck
  • Type of Lake: Deep Seepage. Deep Seepage lakes stratify, or form separate layers of water, during the summer months and have no inlet or outlet.
  • Lat/Long: 44.29593080, -87.73401710


Aquatic Invasive Species Threats


Fishing

  • Fish present: Largemouth bass, bluegill, black crappie are common, and walleye are present.

Regulations

  • View Harpt Lake fishing regulations on DNR website
  • Open All Year 
    • Panfish: 25/10 Year-Round (as of 4/1/2016). 25 panfish may be kept, but no more than 10 of any one species (all year). No minimum length limit.
      Panfish fact sheet
    • Catfish: Bag limit 10. No min length.
  • Open 5/4/2019-3/1/2020:
    • Largemouth/smallmouth bass: 14″ Limit 5.
    • Northern: No length limit, bag limit 5.
    • Walleye: 15″ Limit 5.
  • Motor Trolling is allowed with up to 3 hooks, baits, or lures, per angler.
  • Familiarize yourself with Wisconsin fishing:
    WDNR Hook & Line Guide
  • Consumption Advisory: General Manitowoc County/Mercury. Click here.

Stocking and DNR Surveys

DNR Conclusions from 2012 Survey:

  • Appears to converting from a walleye-dominated lake to a bass-dominated lake despite nearly annual stockings of walleye.
  • The decline in the walleye population likely due to poor survival of walleye following stocking because predation, water quality and habitat conditions favor bass. DNR recommends that DNR stocking of walleye be halted.
  • Panfish in the lake continue to be small due to young age but not slow growth. Bluegill numbers may have stabilized.
  • Carp were captured in 2012 for the first time. They were likely induced through a bait harvest transfer. Declining water quality in the lake also favors the expansion of the carp population.
  • Fisheries Staff should support and encourage landowners to follow the recommendations of the Lake Management Plan which seeks to improve water quality in the lake by establishing buffers and reducing nutrient and sediment inputs into the lake.

 

DNR* Fish Stocking Data
Year Species Strain Age Class Number Stocked Average Length (inches)
2018* WALLEYE 1,500 7-9″
2017 WALLEYE MISSISSIPPI HEADWATERS SMALL FINGERLING 1,126 1.70″
2015 WALLEYE LAKE MICHIGAN SMALL FINGERLING 1,349 1.70″
2013 WALLEYE MISSISSIPPI HEADWATERS SMALL FINGERLING 1,074 2.00″
2011 WALLEYE LAKE MICHIGAN SMALL FINGERLING 1,192 1.90″
2009 WALLEYE LAKE MICHIGAN SMALL FINGERLING 0 1.80″
*Not a DNR project. Stocked by volunteers of the Larrabee Sportsmen’s Club

View more history


Condition: GOOD (2018) Source

  • 5-Year Average Trophic State: 51/Eutrophic 
  • Secchi Disk (current data unavailable):
    The last secchi disk reading was taken in summer 2014. The average reading in 2014 was 8 ft., compared to the SE Georegion average of 6.6 ft.
  • Chemistry:
    Average summer Chlorophyll 7.2 µg/l (SE Georegion average 31.6 µg/l).
    Average summer Total Phosphorus 37.8 µg/l.
    Lakes that have more than 20 µg/l and impoundments that have more than 30 µg/l of total phosphorus may experience noticeable algae blooms.
  • Trophic State Index (TSI): 50/Mesotrophic. What does this mean?
    Mesotrophic lakes are characterized by moderately clear water, but have a increasing chance of low dissolved oxygen in deep water during the summer. Mesotrophic lakes contain moderate amounts of nutrients, and contain healthy, diverse populations of aquatic plants, algae, and fish. Occasional algae blooms may occur. If the lake is deep enough to stratify, the hypolimnion often becomes low in oxygen by the end of summer, and may result in some phosphorus release from the sediments.


View TSI data graph on the DNR website

 

 


Click on the maps to enlarge. Bathymetric Map Courtesy of and Copyright Sportsman’s Connection, based on Wisconsin DNR data. Watershed map courtesy of Manitowoc County Soil and Water Conservation Department. New! Zoom in even closer with this new interactive watershed mapping tool.  

 Other documents of interest:

Updated: May 16, 2019 — 1:34 pm

1 Comment

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  1. Looks like someone loves their lake!

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