This project consisted of the replacement of an existing 138’, 3-span bridge with approach roadways. As a result of the…
This project involved the rehabilitation of an 8-mile portion of a 4-lane divided highway (I-79, Section A4). Tri-State was responsible…
This project involved the reconstruction of a portion of SR 0048 in Allegheny County from an existing 2-lane roadway to…
Tri-State Design, working as a subconsultant to a major consulting firm, was responsible for the in-depth inspection and rehabilitation design…
This project consisted of the replacement of an existing three-span curved bridge over Conrail and an associated roadway. During the…
Tri-State Design and Development, with our comprehensive experience, is capable of interjecting new perspectives, developing fresh ideas, and viable alternatives…
This project involved the replacement of a narrow 2-lane, 200’ span through-truss bridge and associated roadway. The geometry of the…
What goes into a blog post? Helpful, industry-specific content that: 1) gives readers a useful takeaway, and 2) shows you’re…