Leadership Team
The Lachel leadership team is passionate about providing high quality services to our clients and continually looks for ways to improve performance. Our vision is to grow into the preferred provider of tunnel design and construction engineering services for the heavy civil construction industry.
David R. Chapman, PE
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C. Richard Linamen
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Mark M. Claassen, PG, PMP
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George R. Teetes, PhD, PE
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Steven H. Brandon, PE, PG, CPG
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M. Lee Renegar
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Onion Creek Wastewater InterceptorIn an effort to relieve aging wastewater infrastructure and eliminate sewage overflows into the surrounding waterways, the City of Austin is constructing a 42-inch wastewater pipeline that will serve as a key element of the planned wastewater infrastructure upgrades for the burgeoning southeast area of Austin. Read more
Humpback CreekCordova Electric Cooperative, Inc. operates a 1.25 megawatt (MW) hydroelectric facility located approximately 5 miles north of Cordova, Alaska. In December 2005, a powerhouse fire required the Humpback Creek facility to be taken offline. Read more
Calgary West Light RailThe Calgary West Light Rail Transit alignment extends eight kilometers west from the current west end of 7th Avenue downtown to 69th Street S.W. and includes six stations. The design-build project includes 1.5 kilometers of elevated guideway structure between Shaw Millennium Park and the Bow Trail / Crowchild Trail interchange. Read more
Austin Clean Water ProgramThe Austin Clean Water Program (ACWP) was created in 2001 to comply with the U.S. Environmental Protection Agency’s order to eliminate sanitary sewer overflows from the City’s wastewater interceptor system. Read more
Lake Dorothy HydroelectricThe Lake Dorothy Hydroelectric Project is being developed by Alaska Electric Light and Power (AEL&P) to meet Juneau, Alaska’s growing need for electricity. The project will add a level of reliability to the existing system and will help reduce the need for supplemental diesel generation. Read more
Cal Park Hill TunnelThe Cal Park Hill Tunnel in Marin County, California is being rehabilitated in order to convert the collapsed historic railroad tunnel into a dual use recreation trail and commuter rail facility. Read more
Port of Miami TunnelThe $1.6B Port of Miami Tunnel Project is being developed as a Public-Private Partnership (PPP) using the finance-design-build-operate-maintain (DFBOM) or “concessionaire” project delivery model. Read more
Spencer Creek BridgeThe Spencer Creek Bridge Replacement project is one of the first design-build ground improvement contracts awarded in the State of Oregon. The project called for the replacement of the US 101 bridge over Spencer Creek requiring construction of two large bridge abutment embankments over soft liquefiable soils and installation of drilled shafts for the bridge abutment structure. Read more
U230University Link Light Rail, Contract U230 is a component of the 3.15-mi light rail extension that will connect downtown Seattle with the University of Washington campus. The project includes construction of 0.75 mi of twin tube metro tunnels and associated cross passages, excavation and support of the Capitol Hill Station structure, and excavation of a TBM retrieval shaft at the Pine Street Station. Read more
Plateau Creek Pinpeline TunnelsDue to inadequate capacity and the need for increased reliability, the Ute Water Conservancy District proposed replacing the existing water supply pipeline from Jerry Creek Reservoir to the Ute Water Treatment Plant near Palisade, Colorado. Read more
