History of DOT Diamond Core Drilling

DOT Diamond Core Drilling, Inc. was founded by Leo F. Nolan Sr. in 1974. Today
the company has offices in Elyria, Ohio and Washington D.C.
Services offered include flat sawing, runway grooving, roadway profiling,
diamond grinding, wall sawing, core drilling, bridge deck grooving, hand sawing,
chain sawing, horizontal curb sawing, vermeer sawing, and wire sawing. DOT
Diamond Core Drilling, Inc. also provides concrete cutting and drilling
equipment sales, service, and rentals.

Some of our more noteworthy sawing and drilling accomplishments in the
Cleveland area are Jacobs Field, Quaker Square, Gund Arena, Cleveland Heart
Center, Federal Reserve Bank, Tower City, Botanical Gardens, and Municipal
Stadium. In the greater Washington D.C. area they include the Pentagon, White
House, Capital Building, Andrews Air Force Base, along with numerous auto
plants and steel mills nationwide. And, one of our Cincinnati area projects
includes the Fountain Square renovation.