Davy Engineering Co.

Davy Engineering Co. Davy Engineering Co. offers consulting engineering and laboratory (Davy Laboratories) services in Wi Founded in 1929 by Frank J. Davy, Davy Engineering Co.

is today the oldest and largest consulting engineering firm in the La Crosse area. The firm initially provided services
to the City of La Crosse and nearby communities for local streets, highways, bridges, and sewer and water systems. In 1938, Frank's son, Philip S. Davy, joined the firm. As a result, the company name changed to Frank J. Davy and Son, with services directed more toward water supp

ly, water treatment and wastewater collection and treatment. In the 1940s, the firm name was changed to Davy Engineering Co. Philip's son, Michael F. Davy, a graduate of the University of Wisconsin-Madison, joined the company in 1969 and became the third generation of the Davy family to lead the firm. In 1975, the company established Davy Laboratories to provide municipal and industrial clients with cost-effective analyses of their water supply and wastewater discharges. In addition, the laboratory provided support for the engineering division in designing and evaluating performance of water and wastewater treatment facilities and addressing water quality issues. Michael's brother, Thomas H. Davy, joined the firm as office manager in 1981. In 1994, Michael's son, Mark S. Davy, the fourth-generation family member, joined the firm as project engineer after graduating with a degree in civil and environmental engineering from the University of Wisconsin-Madison. offers engineering services in Wisconsin, Minnesota, and Iowa.

08/24/2026
Davy Engineering is proud to support the Boy Scouts of America and their mission to develop leadership, character, and s...
08/17/2026

Davy Engineering is proud to support the Boy Scouts of America and their mission to develop leadership, character, and service in our communities.

We were glad to hit the links for a great cause and support the Scouts at this year’s golf event. Thank you to everyone who helped organize the outing and made it a successful day!

08/15/2026
The Wisconsin DNR has been informed by Wisconsin Emergency Management that Wisconsin drinking water and wastewater syste...
08/13/2026

The Wisconsin DNR has been informed by Wisconsin Emergency Management that Wisconsin drinking water and wastewater systems are at severe risk of cyber-attacks. The following statement and Recommended Actions has been issued to Wisconsin's public drinking water and wastewater systems:

"On July 27, 2026, staff at the Wisconsin Statewide Intelligence Center (WSIC) confirmed that multiple Programmable Logic Controllers (PLCs) located at systems within Wisconsin have had communication with a list of malicious IP addresses. This leads us to believe that the cyber threat is ongoing in Wisconsin and requires immediate action to prevent potentially serious impacts to our systems.
Recommended Actions: The Wisconsin Department of Natural Resources (DNR) strongly recommends that all systems do the following:
1. Closely review the CISA advisory to determine if any systems use PLCs from the listed manufacturers (Rockwell Automation/Allen-Bradley, Schneider Electric, Siemens and other branded/manufactured PLCs).
2. Remove PLCs from direct internet exposure via secure gateway and firewall.
3. Ensure that ports 44818, 2222, 102 and 502 are inaccessible from remote connections.
4. Ensure all operational PLCs are supported by the vendor and have received current security updates.
5. Report any suspected or confirmed incidents to WSIC’s Cyber Incident Reporting Form. Please make sure to list any potentially malicious IP addresses that had communication with your PLCs.
Please contact WSIC at [email protected] or (608) 242-5393 for any questions about the advisory or reporting."

Let us know if we can be of any assistance in communicating with your system providers.

08/07/2026

Progress continues on the First and A Street restoration project. Today, workmen began laying the original Purington Paver Bricks https://www.kville.org/kchistory/Pure.html on a sand base (over concrete), much as they were over a century ago. The streets are part of the National Register-listed McGregor Commercial Historic District and are one of many things that make McGregor such a special place.

Reconstructing the brick streets in downtown McGregor, Iowa
08/06/2026

Reconstructing the brick streets in downtown McGregor, Iowa

…..and so it begins. ✨

August 5th, 2026 marks the 11th annual Professional Engineers (PE) Day.  Thanks to all of our PEs (and EITs) here at Dav...
08/05/2026

August 5th, 2026 marks the 11th annual Professional Engineers (PE) Day. Thanks to all of our PEs (and EITs) here at Davy Engineering Company for your efforts.
Fun Fact: The first professional engineering license in the United States was issued to Charles Bellamy on August 8, 1907 by the State of Wyoming.

08/05/2026

August is National Water Quality Month! Residents of the 95th Assembly District know the importance of having access to safe, clean drinking water and safe, clean natural waters for swimming, fishing, boating, kayaking... the list goes on! Wisconsinites know that our water is a precious resource, which is why my Groundwater Standards notification bill (AB 635) received such bipartisan support this session. This bill will be back next session, and I hope my colleagues along both sides of the aisle will support it once again. Wisconsinites deserve safe, clean water, and I will continue to work with any colleague who wants to join the effort to deliver this bill to the Governor's desk. 💧🌊🚰

David Shimek just wrapped up construction of a major project involving complete reconstruction of the utilities and stre...
07/30/2026

David Shimek just wrapped up construction of a major project involving complete reconstruction of the utilities and streets in a 12 block residential neighborhood. What made this job particularly difficult was the very wet conditions last fall combined with poor soils. The project was partially completed last fall, left with gravel surfacing over the winter to stabilize and fully completed this spring. As the lead Engineering Tech on the job, David had to keep the contractors on task and work to reduce the impacts on the residents. The neighbors were remarkably tolerant and understanding though a long, difficult time. David understands that dealing with the people involved is just as important as the technical aspects of construction. Congratulations on a successful project!

The City of Galesville recently completed a street reconstruction project, referred to as the West Side Project in the C...
06/22/2026

The City of Galesville recently completed a street reconstruction project, referred to as the West Side Project in the Cance Park area. The project was driven by deteriorated street surface conditions and the need to replace old and undersized watermain. Additional improvements included sanitary sewer replacement, sidewalks and storm sewer to improve drainage. We appreciate the patience and cooperation of the residents during the construction phase which started last year.

Address

115 6th Street S
La Crosse, WI
54601

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

(608) 782-3130

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