Skanska has promoted Joseph Mannino to vice president of environmental, health and safety for civil operations in the Northeast. He had been director of safety.

Scott Minnich has joined Dewberry’s Parsippany, N.J., office as senior project manager in the natural resources department. He was a senior engineer at Greenman-Pedersen. Dewberry also promoted David Mahoney to alternative delivery operating unit manager from executive vice president and hired Robert Acker as senior coastal engineer. Acker had been staff engineer at McLaren Engineering Group.

Thornton Tomasetti has confirmed two promotions in its New York office. Managing principal Peter DiMaggio was named to the newly created position of managing director. Rob Otani is now the firm’s first chief technology officer; he had been special structures leader.

H2M architects + engineers has promoted the following employees to assistant vice president: Veronica Byrnes, from office manager of the Westchester, N.Y., branch; John Collins, from department manager of water resources; Robert Ikes, from office director of the firm’s New York City location; Michael Lantier, from discipline engineer; Renee Marcus, now also a studio director, from project manager; Debra Mattina, from department manager for forensics; Matthew Mohlin, from senior discipline engineer; Jamie Pizzardi, from controller; Kevin Taylor, from department manager of environmental services; and Joseph Todaro, from department manager of water resources.

EW Howell Construction Group has created a new interiors division in its New York City office, led by vice president Robert Hohmann, who was previously CEO of Sienna Construction. The firm also expanded its health care division by appointing project executive Thomas Miranda, who had been facilities program coordinator at Stony Brook Medical Center.

Cauldwell Wingate has hired two new senior project managers: Philip W. Giegengack, who previously held the same role at Building and Land Technology, and Greg Szekalski, who had been project manager at JDS Development.

OC Development Management (OCDM) has promoted two executives and hired two others. John McGrath has been brought on as senior project manager; he was previously project manager at Hunter Roberts Construction Group. James Robinson has been appointed vice president of construction; he had been director at Gorton & Partners LLC.

Elizabeth Flynn was elevated to vice president of operations from operations director, and Adam Kusinitz was promoted to vice president of project management from projects director.

Matt White has joined BOMAG Americas in the newly created role of manager of milling and reclamation; he was most recently technical sales specialist at Nueces Power Equipment. The company has also hired Jamie Winkler as director of sales, dealer channel; he had previously been sales manager at ASCO.

Urban Engineers has promoted Jared Krause to vice president and deputy general manager of facilities construction services; he was previously a practice leader and project manager.

Gabriel S. Peschiera has joined Jaros Baum & Bolles (JBB) as director of smart buildings. He was previously CEO of Envairo, which he co-founded.

HDR has promoted Eric Jaffe to East region director for architecture from managing principal in Princeton, N.J..

New York City Mayor Bill de Blasio has appointed Lorraine Grillo as Commissioner of the Dept. of Design and Construction. She will continue in her prior position as president and CEO of the New York City School Construction Authority.

Stantec has made four hires in its program and project management group in New York City: project controls specialists Mohan Gill, Laurie Horesta and Osaid Rahman and assistant project manager Siu Lan Tai. Additionally, it has appointed Richard Gobeille as senior principal of tolling in its New York office. And the firm’s Mount Laurel, N.J., office has added Ronald Prann as principal and environmental specialist and Paul Truban as transportation planner and engineer.

Pizzarotti has hired two new executives. Michael Wewiora is vice president and project executive; he was vice president of construction operations for Nasdi Holdings. Martin S. Hirko has joined the firm as vice president and project executive.

LeChase Construction Services has appointed Gregory Barkstrom as director of real estate development.

Syska Hennessy Group has appointed two associate partners, Demetrios Plessias and Sean O’Shea, at its New York City headquarters. Plessias was a vice president at WSP, while O’Shea was director of mechanical engineering at SIGMA7 Design Group.

Turner Construction has elevated Doug Cooper to vice president and regional lean manager in New York.