About RK&K

Since our founding in 1923, the RK&K team has satisfied both public and private sector clients by providing multi-discipline planning, engineering, environmental, and construction services. RK&K's technical expertise places us 73rd on the Engineering News Record's 2015 listing of the Top 500 Design Firms. Our award-winning and diversified staff is experienced in an array of planning and design disciplines. Every one of our nearly 1,000 team members understands what it takes to deliver success to our clients: Responsive People and Creative Solutions.


Our Team Works

Our Team Works

"Teamwork is working together — even when apart."

At the heart of RK&K's success is the high value placed on teamwork and collaboration. Teamwork is important to RK&K's partners and senior leadership and is reflected in the operation of the firm, our projects and our culture. Although RK&K has many offices throughout the eastern United States and Texas, the firm functions as one. We do not have multiple profit centers nor do we encourage "silo" building. Our leaders and their teams do what it takes to achieve a successful project and satisfied client. Whether that means helping out another department or another office in another state, teamwork is the name of our game.

Our "pull together" mentality isn't limited to RK&K employees working on RK&K projects. We have a reputation for developing successful teaming relationships with joint venture partners, subconsultants, design-build contractors, and, of course, our clients!

RK&K Partners

RK&K became a limited liability partnership in 1998 and is presently managed by four equal partners within that limited liability partnership, including:

Thomas E. Mohler, PE

Construction Management & Inspection
J. Michael Potter, PE, CCM

Michael W. Myers, PE

Mark M. Dumler, Esq, CPA

Partner Emeritus
David W. Wallace, PE

Key Contacts

Baltimore Office - Headquarters
81 Mosher Street, Baltimore, MD 21217

James E. Nash Chief Information Officer (CIO) Email
Barb Hoage, PE, PTOE Senior Director, Strategic Development Email
Melinda Peters, PE Senior Director Email
Rick Adams, PE  Director, Municipal Transportation  Email
Henry Bankard Director, Graphic Design  Email
Nancy Bergeron, PE Director, Transportation Email
John d'Epagnier, PE, LEED AP Director, Site Development  Email
Karen Kahl, PE, PTOE Director, Transportation Email
Henry Kay Director, Rail/Bus, Transit Email
Seyed Saadat, PE, CFM Director, Water Resources Email
Keith Bailey, Prof LS Senior Manager, Surveys/Right-of-Way Email
Rick Maddox Director, Natural Resources Email
Bridget Mainley, CPSM Senior Manager, Marketing Email
Jim Ridenour, PE Senior Manager, GIS/Programming Services Email

Baltimore Office
601 N. Calvert Street, Baltimore, MD 21217

Barry Brandt, PE, PTOE  Director, Traffic Engineering  Email
Jim Burnett, PE, PTOE  Director, Traffic Planning/Operations Email
Bob Healy, PE  Director, Structures Email
Brian Hepting, PE  Director, Structures Email
Lars Hill, PE Director, Construction Management & Inspection Email
Stuart Montgomery, PE Director, Structures Email
Eric Klein, PE, DGE Senior Manager, Geotechnical Email

Baltimore Office
111 Market Place, Suite 1050, Baltimore, MD 21201

Bob Andryszak, PE Director, Wastewater Email
Keith Eysaman Senior Manager, Municipal Engineering Email
Rob Linthicum, PE Director, Municipal Engineering Email
John Moore, PE Director, Water Email

Allentown Office
640 Hamilton Street, Allentown, PA 18101

Todd Rousenberger, PE  Director, Transportation Email

Charlotte Office
125 Floyd Smith Drive, Suite 140, Charlotte, NC 28262

David Willoughby Director, Energy/Corrosion Email

Fairfax Office
12600 Fair Lakes Circle, Suite 300, Fairfax, VA 22033

Mimi Kronisch, PE, DBIA, CCM Senior Director Email

Greensboro Office
411 Parkway, Suite A, Greensboro, NC 27401

George Escojido Senior Manager, Construction Email

Harrisburg Office
651 East Park Drive, Suite 105, Harrisburg, PA 17111

Shawn Reppert, PE  Project Manager  Email

Houston Office
14515 Briarhills Parwkay, Suite 100, Houston, TX 77077

David Willoughby Director, Energy/Corrosion Email

Keyser Office

159 Plaza Drive, Keyser, WV 26726

Dave Vanscoy, PE, PLS Director, Municipal & Transportation Engineering Email

King of Prussia Office
680 American Avenue, Suite 300, King of Prussia, PA 19406

Todd Rousenberger, PE  Director, Transportation Email

Lakeland Office
402 South Kentucky Avenue, Suite 400, Lakeland, FL 33801

Dick Combs  Senior Manager, Transportation Email

Miami Office

9485 SW 72nd Street, Suite A-245, Miami, FL 33173
305.596.0912 Office
Key Contact: Enrique J. Tamayo, PE, Senior Engineer

Enrique J. Tamayo, PE  Senior Engineer Email

Newport News Office
721 Lakefront Commons, Suite 203, Newport News, VA 23606

Mike Gaffney, PE  Director, Municipal Engineering Email

Orlando Office
3504 Lake Lynda Drive, Suite 165, Orlando, FL 32817

Mike Lausier, PE Director, Construction Engineering & Inspection Email

Raleigh Office
900 Ridgefield Drive, Suite 350, Raleigh, NC 27609

Tommy Peacock, PE, PLS  Senior Director, Transportation  Email
Keith Skinner, PE  Director, Transportation Email

Richmond Office
2100 East Cary Street, Suite 309, Richmond, VA 23223

Malachi Mills, PE Director, Site Development Email
Owen Peery, PE  Director, Transportation Email
Marty Rodgers, PE  Senior Manager, Energy & Corrosion Email
Lee Yowell, PE  Director, Construction Management & Inspection Email
Gary Johnson, PE  Director, Structures Email

Tampa Office
14055 Riveredge Drive, Suite 130, Tampa, FL 33637

Dick Combs  Senior Manager, Transportation Email

Virginia Beach Office

2901 S. Lynnhaven Road, Suite 300, Virginia Beach, VA 23452

Mike Gaffney, PE  Director, Municipal Engineering Email
Chuck Cayton, PE  Senior Manager, Transportation Email
Dave Plum, PE Senior Manager, Municipal Engineering Email

Washington, D.C. Office
300 M Street, SE, Suite 880, Washington, DC 20003

Scott Crumley, PE, PTOE  Senior Manager, Traffic Email

Wilmington Office
One Riverwalk Center. 110 S. Poplar Street, Suite 102, Wilmington, DE 19801

Jim Eisenhardt, CFM  Senior Manager, Natural Resources Email
Natalie Barnhart, PE Senior Manager, Construction Engineering Email
Nancy Bergeron, PE Director, Transportation Email
Jim Burnett, PE, PTOE Director, Traffic Planning/Operations Email

York Office
3501 Concord Road, Suite 100, York, PA 17402

Rob Linthicum, PE  Director, Municipal Engineering Email

Trending Now

RK&K, NC: Calvin Leggett, PE, Manager, Transportation, has joined the Raleigh office following a 40-year career with NCDOT and the City of Raleigh. 

RK&K, MD: Barb Hoage accepted ARTBA’s "The Glass Hammer" award on RK&K’s behalf – this annual award is given to at least one company in the transportation construction industry with innovative programs and activities directed at successfully promoting their organization’s women leaders. 

RK&K, VA: The Richmond office welcomes new Senior Marketing Coordinator, Jennifer Brooks. 

RK&K, MD: RK&K will be exhibiting at these upcoming Career Fairs: October 19, Morgan State University, Baltimore, MD: October 25, Virginia Tech, Charlottesville, VA; and November 4, University of Maryland, College Park, MD. Stop by and see us!

RK&K, FL: Josh Carter, PE, CCM, accepted the 2016 Best-in-Construction Award - Interstate category on behalf of RK&K’s Veterans Expressway project in Hillsborough County, from the FTBA (Florida Transportation Builder's Association) – good work! 

RK&K, MD: RK&K welcomes a new Safety Manager to the firm – Tim Fagerstrom – he will be working across all of RK&K’s 22 offices. 

RK&K, NC: The Raleigh office welcomes new Senior Marketing Coordinators, Wendy Ramsey and Erin Burgart. 

RK&K, MD: RK&K’s TMDL Team was awarded the “Tree Team of the Year” from the MD State Highway Administration’s Office of Environmental Design (OED). Congratulations!

RK&K, PA: Donald Lerch, PE, has joined RK&K, following a 26-year career with PennDOT, as the head of the firm’s Allentown office.