Satellite: Esri, Maxar, Earthstar Geographics
Erdmann launch_W547 Hwy 28
Select One... • Open For Business
About This Ramp
Erdmann launch_W547 Hwy 28 is a carry-in located in Select One..., Washington County, Wisconsin. This ramp provides access to Theresa Marsh, with water access.
The ramp surface is gravel, providing good traction for launching.
This public access ramp is managed by STATE(DNR) and is open for business.
Parking & Facilities
Trailer Parking: Trailer parking may be limited; call ahead for details
Vehicle Parking: General vehicle parking available
Arriving early is recommended, especially on weekends and holidays, to secure a parking spot near the launch area.
Ramp Specifications
Surface: Gravel
Water Body: Theresa Marsh
Handicap Accessibility
Full handicap accessibility: No
If you have specific accessibility needs, we recommend calling ahead to confirm what accommodations are currently available.
Visitor Information & Tips
- Hours: 24 hours daily (contact for seasonal changes)
- Fees: Free access
- Status: Open For Business
- Notes: Canoe launch at south end of Erdmann lane
- Best times to launch are early morning or weekdays when crowds are lighter
- Always check local fishing and boating regulations before heading out
- Bring safety equipment including life jackets and first aid kits
Location & Getting There
City: Select One...
Use the interactive map above to get directions to Erdmann launch_W547 Hwy 28. Most smartphones have built-in GPS navigation that will guide you directly to the ramp's location.
Why Choose Erdmann launch_W547 Hwy 28?
Erdmann launch_W547 Hwy 28 is one of the premier boat launch facilities in Washington County, offering convenient access to Wisconsin's waters. Whether you're an experienced angler, recreational boater, or first-time launcher, this ramp provides the amenities and facilities you need for a successful day on the water.
Located on Theresa Marsh, this ramp is perfect for freshwater fishing, enjoying calm waters, and targeting species that thrive in freshwater environments.The well-maintained launch facility ensures smooth boating experiences for vessels of all sizes.
Water Quality & Safety
Official EPA assessment for Unnamed — last reported 2024.
Source: EPA ATTAINS (Clean Water Act water quality assessments), as reported by the state. This reflects the most recent official assessment, not real-time testing — always check your state's current fish consumption advisories for specific serving guidance.
Species You Might Find Here
Common freshwater gamefish for this type of water — not a confirmed species survey for this specific location, since we don't have per-lake fish count data.
Gear for fishing Erdmann launch_W547 Hwy 28
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Launch Tips & Best Practices
Before You Launch
- Check your boat for any maintenance issues before arriving at the ramp
- Have your registration and fishing license readily available
- Ensure all safety equipment is on board, including life jackets for all passengers
- Fill up your fuel tank before heading to the ramp to ensure sufficient range
At the Ramp
- Remove your trailer from the launch lane promptly to keep traffic moving
- Have crew members ready to help with the launch and retrieve process
- Park in designated areas only - don't block other boaters
- Always back into the ramp slowly and check water depth before launching
Safety on the Water
- Wear your life jacket at all times while on the boat
- Check local fishing regulations and bag limits for your target species
- Tell someone where you're going and when you expect to return
- Monitor weather conditions and head back to shore if conditions deteriorate
Planning Your Visit to Washington County
Washington County offers diverse boating and fishing opportunities with Erdmann launch_W547 Hwy 28 serving as a premier access point. The county's waters are home to a variety of fish species and provide excellent recreational opportunities year-round.
When planning your visit, consider the current season and target species. Spring and fall often provide ideal conditions for boating in Washington County, with comfortable temperatures and excellent fishing opportunities. Summer months are great for evening trips when the water is calmer after the midday heat.
Erdmann launch_W547 Hwy 28 is conveniently located with easy highway access, ample parking, and modern facilities to support your boating adventure. The ramp's well-maintained launch area accommodates both large and small vessels, making it accessible to everyone from experienced captains to weekend boaters.
Nearby Boat Ramps
Other launch points within driving distance.
At a Glance
Essential info about Erdmann launch_W547 Hwy 28
Quick Tips
- Arrive early for best parking
- Check weather before heading out
- Bring safety equipment
- Call ahead for seasonal hours
Before you launch
As an Amazon Associate, Boatzia earns from qualifying purchases.
Ramp data from USGS and Wisconsin wildlife/DNR sources. Last synced 2026-07-28.
Fishing tips & boating guides
Expert advice on launching boats, fishing techniques, and making the most of your ramp visits.
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Awesome curated fishing content from some amazing YouTube angling creators.
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Erdmann launch_W547 Hwy 28 — frequently asked questions
Is there a fee to launch at Erdmann launch_W547 Hwy 28?▾
Erdmann launch_W547 Hwy 28 has no launch fee on record — it is generally free to use. Fees can change, so confirm with the managing agency before your trip.
Where is Erdmann launch_W547 Hwy 28 located?▾
Erdmann launch_W547 Hwy 28 is a CARRY-IN in Select One..., Washington County, Wisconsin, on Theresa Marsh.
What are the hours at Erdmann launch_W547 Hwy 28?▾
Erdmann launch_W547 Hwy 28 is typically accessible 24/7. Access hours can change seasonally, so verify before heading out.
Is Erdmann launch_W547 Hwy 28 a public boat launch?▾
Yes. Erdmann launch_W547 Hwy 28 is a public boat ramp — also called a boat launch, boat access, or boat landing — in Select One..., Washington County, Wisconsin. It's open to the public and provides access to Theresa Marsh.
Can you swim at Theresa Marsh?▾
Erdmann launch_W547 Hwy 28 is a boat launch, not a supervised swimming area. People do swim in Theresa Marsh, but there are no lifeguards, and water conditions vary — always check local water-quality advisories and current conditions before swimming, and never swim near an active boat ramp.
