Peter Johnston
Principal
Graef-USA Inc.
773-399-0112
Peter Johnston
Principal
Bara Radwan
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Cooper Tonachel
PE
Transportation Engineer
Cristian Alvarez
Structural Bridge Engineer
Edith Henderson
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Eric Meschewski
Design Engineer
Frankie Ash
Civil Designer
Jeffrey Orzech
Design Engineer
Joanna Colletti
Market Area Leader - Water
Joe Cross
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John Murillo
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Transportation Engineer
Khaled Mansour
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Meia Coutre
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Meron Asnake
Transportation Designer
Mohamad Hyasat
Bridge Engineer
Steven Chon
Construction Engineer
Thomas Stevens
PE
Project Manager
