Con/Span Bridge Systems
- Dayton
Network of precast producers supplying bridges, culverts, and underground structures.
www.con-span.com
R.B. Jergens Contractors, Inc.
- Vandalia
Specializing in earthmoving, rock excavation, landfill construction, underground utilities, heavy highway construction, land clearing, tub grinding, aggregate base, fine grading, and snow removal.
www.rbjergens.com
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