in Hollidaysburg

We are civil engineers, structural engineers and surveyors dedicated to providing exceptional service and innovative project designs. Our goal is to always deliver an end product that enriches t…

P. Joseph Lehman, Inc., specializes in transportation design, structural design, site development, surveying, environmental engineering, environmental characterization and remediation, geology an…

Stiffler McGraw is a full service-consulting firm offering complete civil engineering, surveying and architectural design services.