Karl Pehnke has nearly 25 years of extensive traffic engineering, parking and transportation planning experience.



Elmwood Park, NJ  – Langan Engineering & Environmental Services announced that Karl Pehnke,  one of the region’s most respected and accomplished transportation and traffic engineers, has joined the firm as an Associate. Pehnke, formerly a Principal and Director of the Transportation Division of CMX, has nearly 25 years of extensive traffic engineering, parking and transportation planning experience throughout New Jersey, New York, Pennsylvania, and Connecticut.  

“Karl Pehnke’s reputation is synonymous with excellence in traffic and transportation consulting, and we are thrilled to have someone of his stature join the Langan team,” said David T. Gockel, President/CEO of Langan. “Infrastructure projects are critically important, and adding Karl further strengthens the reach and scope of Langan’s services in that market.”  

Pehnke joins an experienced group of traffic engineers and transportation planners, including Daniel Disario, Senior Associate, Bill Lothian, Senior Associate, and Gregory Del Rio, Associate. Pehnke’s expertise includes traffic engineering studies, transportation planning studies, parking studies and functional layout, interchange justification studies, traffic demand management, and township, city, and county circulation studies. He is also regarded for his ability to provide compelling presentations and testimony to build public consensus for controversial projects.  

“I have known, competed against, and worked with engineering professionals from Langan for many years and during that time I have had the utmost respect for the firm,” said Pehnke. “So I am honored and excited to now be part of Langan and look forward to helping the firm grow and expand further locally, nationally, and internationally.”  

With experience in more than 14 states, Pehnke is an expert in the New Jersey Highway Access Code, New Jersey CAFRA permitting, New York State SEQRA, Connecticut STC Permits, Massachusetts MEPA requirements, and Pennsylvania Highway Occupancy Permitting processes.  


About Langan Engineering & Environmental Services

Founded in 1970 and headquartered in Elmwood Park, N.J., Langan (
www.langan.com) provides integrated site engineering and environmental consulting services for private developers, property owners and public sector clients. Firm services include site/civil, geotechnical, and environmental engineering, as well as landscape architecture and planning, survey/mapping, BIM-compatible 3D Laser Scanning, traffic/transportation, CADD/GIS, natural and cultural resources/permitting, and sustainable design consulting. Langan employs more than 500 professionals and has regional offices in New York City; Philadelphia, Bethlehem, and Doylestown, PA; New Haven, CT; Trenton, NJ; Arlington, VA; Miami and Tallahassee, FL; Las Vegas, NV; and Irvine, CA.  With more than 125 LEED APs, the firm ranks among the top 30 Green Design Firms by Engineering News-Record and has consistently ranked among the Top 5 Best Engineering Firms to Work For by Civil Engineering News.  

Langan International, the worldwide subsidiary of Langan Engineering & Environmental Services, with offices in London, Athens, Abu Dhabi and Dubai, provides all firm services to private and public sector clients around the globe.