Skip Navigation

General Information
Phone Numbers
Emergencies: Dial 911
2800 S.W. 72nd Avenue

Public Works

Coral Gables, The City Beautiful

Hermes Diaz

Hermes Diaz
Public Works Director


Mailing address:
2800 S.W. 72 Avenue
Miami, FL 33155

In April 2019, the City of Coral Gables appointed Hermes Diaz as Director of Public Works. In this role he leads the management of the City’s infrastructure services. He is responsible for automotive, utilities, facilities, right-of-way permitting, sanitation, landscape services, transportation and sustainability, and capital improvements. His role is critical to maintaining Coral Gables infrastructure needs and keeping the city green, clean, and environmentally sound.

Diaz joined the City as Deputy Public Works Director and City Engineer in 2018 and was directly responsible for right-of-way permitting and utilities sections, creating and maintaining the engineering standards for construction in the public right-of-way within Coral Gables.

Prior to joining Coral Gables, he was Chief Civil Engineer for the City of Miami Public Works Department where he oversaw city-wide maintenance contracts and design of storm water improvements. He also served as a Civil Engineer for the City of Miami Beach and worked as a Project Manager for Consul-Tech Development Services, Inc. designing domestic water and fire main services.

Diaz earned a Bachelor of Science in Civil Engineering from Florida International University and has more than 20-years of engineering and management experience in the private and public sectors.

The Public Works Department is a large, full service, multi-disciplinary organization providing a vast array of infrastructure services, including: sanitary sewers; storm water control systems; transportation improvements; right-of-way maintenance; facilities operations; fleet maintenance; landscaping and tree succession planning; and sustainable resource management. The Department also provides various support services to all other City Departments.

The Department is represented by a multitude of professional and licensed/certified disciplines working in the following divisions:

Automotive Division

The Automotive Division is responsible for the acquisition, maintenance, and disposal of all City vehicles and heavy equipment.  In addition, the division provides fueling services to the City’s fleet.

Central Administrative Division

The  Central Administrative Division receives and handles all customer service-related requests that are submitted via telephone, email and in person by residents, visitors, other City departments and agencies.  The division routes requests to the proper divisions within the Public Works Department and/or other City departments, municipalities and agencies.   Requests are documented through the GovQA web platform for proper follow-up and future reference.  Further, the division manages the department’s payroll; responds to personnel related matters and other inquiries; manages operational budgets and processes operational/capital projects’ requisitions and invoices; and supports the department’s Director, Assistant Directors, Chiefs and Supervisors. The Central Administrative Division is the bridge between the multiple divisions and supports in consolidating all operations for uniformity. 

Engineering Division

The Engineering Division provides design and construction services for the City using a combination of in-house personnel and outside consultants for various capital improvement projects (Parking Garage Repairs, Facility Repairs and Reroofing, Parks Improvements, paving, drainage, sanitary sewers, traffic management, etc.). The Division also manages permitting and inspection of all construction activities along the public right-of-way.

Phone: 305-460-5025 or 305-460-5026

Landscape Services Division

The Landscape Services Division staff consisting of certified arborists, landscape architects, horticulturalists, and landscape professionals are responsible for the City’s urban forest management which includes the planting of new trees and ongoing pruning and maintenance of approximately 40,000 existing trees and palms on City properties and rights of way. The division is also responsible for the landscape maintenance and meticulous beautification of approximately 370 green spaces, parks, parking lots, streetscape plazas, and open areas within the City limits, concentrating on planting design and maintenance, irrigation repair, fertilization and pest control. The Division manages permitting for tree removals and replacements and coordinates tree removals and replacements with City arborists and contractors.  The licensed landscape architects in the division review plans for development and renovation of public and private properties within the City, working closely with the planning department, parks department, and development services departments to participate in public design review boards, community meetings, board of architects reviews, permitting, and construction inspection City-wide. The director and assistant director of the division also serve as liaisons between the City and the Landscape Beautification Advisory board, consisting of community members who actively contribute ideas for Citywide landscape planning and improvements, as well as host a yearly Arbor Day celebration held in City schools to provide educational opportunities to children and the public about landscape benefits and environmental education.

Phone: 305-460-5135

R.O.W. Maintenance & Enforcement Division

The Right-of-Way Maintenance Division provides essential services within the City’s right-of-way such as maintenance of streets, roadways, alleys, and waterways. Right-of-way services include street sweeping, pressure cleaning, graffiti removal, asphalt pothole repairs, sidewalk repairs, removal of debris and seaweed from navigable channels, and City-owned bridge maintenance. In addition, the Division supports with maintenance of traffic equipment for the City’s special events and in-house construction/maintenance projects. The Division Director and Engineers also serve as liaisons between the City and the Waterways Advisory board, consisting of community members who actively contribute ideas for the planning and improvements to City canals.

Sanitation Division

The Sanitation Division provides recycling, garbage, and yard waste pickups for approximately 11,000 single-family homes. The Division provides backyard recycling services once a week, backyard garbage services twice a week, and curbside trash collection once a week.

Please visit the City's Waste Collection page for more information on trash/garbage and recycling collection procedures

Phone: 305-460-5346 or 305-460-5135

Instructions to Report a Missed Single Family Home Pickup

If you have a missed pick up, for quickest response, we recommend you use the Coral Gables app or report online . If you do not have access to a computer, you may call (305) 460-5346.

Sustainable Public Infrastructure Division

The Sustainable Public Infrastructure Division is comprised of the City’s transportation planning & engineering, sustainability and facilities sections who are responsible for the development and implementation of strategic and comprehensive, long-term multi-modal transportation plan and sustainability plan for the City of Coral Gables. The Division coordinates assigned activities with other departmental divisions, City departments and outside agencies.

Facilities Operations aims to provide "best in class" support- ensuring clean, comfortable, safe, and effective facilities are provided to meet the needs of the City of Coral Gables Residents and Guests and the professional staff and support systems that serve them. Facilities Operations is comprised of administrative and trades personnel covering a wide variety of areas in support of the mission of the City of Coral Gables. The responsibility of this unit is to provide a physical environment that will enable our City to accomplish its broader goals and strategic plans. This environment consists of all City owned buildings, plazas, entrance ways, fountains and streetlights. This section initiates repair orders from the internal and external community and oversees all routine buildings and structures maintenance functions. This division is also involved in the implementation of sustainability initiatives pertaining to energy and water conservation. Facilities Operations is in charge of all maintenance and compliance for city owned life safety, mechanical, electrical, elevator and HVAC systems citywide. The Facilities team assists in City sponsored special events and cultural arts installations.

Utilities Division

The Utilities Division staff consisting of Professional Civil and Environmental Engineers, licensed Electricians, certified Sanitary and Storm Pumps Stations Mechanics, Wastewater Collection System Operators, Pipeline and Manhole Assessment technicians, CCTV operators and Stormwater Operator technicians who are responsible for the City’s sanitary sewer system and stormwater drainage system management which includes sewer capacity, operation, and maintenance as well as State and County’s regulatory compliance. Through City’s sanitary gravity wastewater collection system, the division manages a daily average of 3.5 million gallons of wastewater. Thirty-five (35) Sanitary Pump Stations service areas (basins), approximately 376,000 lineal feet (71 miles) of gravity sewer mains, and over 1,400 manholes, on City properties and rights of way comprise the sanitary sewer system. The Division manages permitting for existing and new sanitary sewer services, sewer extensions and coordinates the construction and repairs to sewer mains and lateral connections with Division Engineers, Construction Managers and contractors.  The Professional Engineers in the division review plans for development and renovation of public and private properties within the City, working closely with the planning and development services departments to participate in public design review boards, community meetings, board of architects reviews, permitting, and construction inspection City-wide. The Utilities director and Engineers of the division also serve as liaisons between the City and Miami-Dade County Environmental Resources Management (DERM) to implement monitoring, education, restoration and land management programs to protect water quality, drinking water supply, air quality and natural resources that are vital to the health and well-being of all City’s residents and visitors. The Division also operates, maintains and manages the City’s Storm Drainage systems under the National Pollutant Discharge Elimination System permit program. The City’s drainage system includes: two (2) Storm Pumps Stations, approx. 2,662 Inlets/catch basins/grates, 105,600 lineal feet (20 miles) of pipes/culverts and 108 outfalls. The division’s operators and technicians receive and resolve resident’s emergency calls 24x7 (e.g. line obstructions, sewer back-ups, storm/flooding, etc.).

Public Works Contact Information

Public Works Department
2800 S.W. 72nd Avenue
Miami, FL 33155


Phone: 305-460-5000

Hours of Operation:
Monday through Friday: 8:00 am - 4:00 pm
Closed holidays and weekends