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A relationship-oriented
full-service engineering firm

Since 1989, DHM Melvin Engineering has applied experience and knowledge to help clients realize their objectives beginning with innovative concepts through final construction and close-out.

Our DHM team is comprised of professional engineers, planners, designers, and technicians who possess the skills and abilities to meet design and project challenges.

Featured Projects

Chipola River Protection and Stormwater Mitigation Retention Pond

The project consisted of construction of a 6.75-acre stormwater pond, north of Prough Drive, to retrofit what was untreated watershed, making treated stormwater available to irrigate 7.22-acres on the Chipola College campus. This project will reduce groundwater use for irrigation, improving water quality of discharge downstream into the Chipola River, and reduce flooding to the campus and to River Forest Road. In addition, this project brings aesthetic beauty to the campus, for its staff, students, and community members.

The DHM team was responsible for planning, civil design, permitting, grant funding and administration, project management, and construction engineering inspection.

The project included earthwork, installation of a bentonite clay pond liner, irrigation system with irrigation pump system, drainage culverts, concrete ditch paving and structures, sod and landscaping.

Collaboration: The DHM team coordinated efforts with the City of Marianna, Chipola College, Northwest Florida Water Management District, FEMA, and all other stakeholders and contractors to achieve successful project completion.

Construction Cost: $1.4 Million

Project Discipline:

Civil / Utilities

Project Location:

Marianna, Florida

Dune Lakes Elementary School

In conjunction with DAG Architects, the DHM structural team provided structural design, detailing, and inspections for this one of a kind, modern, and functional new school. Project tasks included media center trusses, entrance towers mimicking lighthouses, and the Brise Soleil constructed out of glulam columns and beams to help shade areas of the school from direct sunlight.

Our Tallahassee Professional Structural Engineers and additional DHM staff worked seamlessly with the team at DAG Architects to achieve successful project results.

Notable project stats: the trusses are special glulam and steel trusses, designed by our Senior Structural Engineer. They add a unique and striking focal point.

Construction Cost: $30 Million

Project Discipline:

Structural

Project Location:

Santa Rosa Beach, Florida

Marianna Airport Commerce Park

Improve infrastructure at the Marianna Airport Commerce Park, specifically to site for a manufacturer recruited to the area. The Scope of Services included increasing water/wastewater capacity for expansion and future growth, demolition of two existing water storage facilities, determining location of existing water/wastewater lines and other utilities (telecommunications and natural gas) to extend services, identifying fire protection needs, roadway and parking area improvements, and Landscape and irrigation design.

Notable: The Largest Communities Development Block Grant – Economic Development Grant Award Ever Funded by the State of Florida – $3.2 million dollars for infrastructure improvements

DHM provided FULL GRANT ADMINISTRATION SERVICES for the project., in addition to design and inspection services for the required infrastructure to accommodate the manufacturer coming in, including a 300,000-gallon pedosphere water facility, access and entry road widening and resurfacing, stormwater drainage improvements, water/wastewater/natural gas extensions, landscape and irrigation design, and increased fire protection.

Collaboration: A manufacturer was recruited to the area by the Jackson County and City of Marianna economic development teams and chose to locate in a 270,000sf space formerly owned by the City.

Project Discipline:

Grants Administration

Project Location:

Marianna, Florida / Jackson County, Florida

Jackson County Schools | Marianna K-8 School New Construction

New Construction project scope consisted of approximately 385,000 SF. Structure consisted of masonry load bearing walls, special profile and standard steel bars, joists, cold formed steel walls and corridor framing.

Cold formed steel roof trusses and pre-engineered metal buildings. Design included three middle school classroom buildings, one middle school gymnasium, four elementary school classroom buildings, one elementary school gymnasium, a shared cafetorium, and a combined administration building housing both administrative staff and the media center.

The DHM team provided: DHM provided Structural design, landscape design, and threshold inspection of a new K-5 Elementary School and 6-8 Middle School

Collaboration: DAG Architects, Donofro Architects, DHM Melvin Engineering, Culpepper Construction

Construction Cost: $52 Million

Project Discipline:

Structural

Project Location:

Marianna, Florida

I-10 & State Road 81 Infrastructure Improvements

This project consisted of the construction of approximately 1,930 LF of asphalt roadway which will serve as new access for future business development. Drainage structures were also included consisting of concrete inlets, piping and concrete mitered end sections. Also included, the construction of stormwater ponds, fencing and pavement striping. Utility upgrades consisting of the construction of approximately 8,700 LF of 12” water main extension from the City water tower to Joe Manning Road were included. Sewer upgrades are included consisting of the construction of a new sewer lift station, 8” gravity sewer with concrete manholes and a 4” sewer force main.

The DHM team provided: DHM provided Design and permitting of 1,930 LF new truck access road, design and permitting of 8,700 SF of 12” water main extension. Design and permitting of new 8” gravity sanitary sewer system to facilitate current and future development along with a new municipal sewer lift station and a 9” sewer force main.

Challenges and collaboration: Very tight design and construction schedule, various right-of-way easements and agreements, extensive permitting requirements with FDOT, FDEP, NWFWMD, and local governments

Project Discipline:

Civil / CEI

Project Location:

Holmes County, Florida

Graceville Fire Department

Project Scope consisted of construction of a 5,028 SF single story building and all associated site development work located on Prim Avenue, Graceville, Florida. The facility is designed to accommodate the Graceville Fire Department and features (3) vehicle bays, with doors, (1) restroom, (2) offices, a common area, meeting room, mechanical room, kitchen, bunker gear storage room, and laundry room.

Site work included clearing and grubbing, earthwork, retention pond, reinforced concrete pavement, fencing and sodding. Underground utility construction was also included.

The DHM team provided: Civil and Structural engineering design, Grant Administration, CEI, Construction Administration

Collaboration: Donofro Architects, DHM Melvin Engineering, Reeves & Shaw Construction, Watford Engineering

Size: 5,028 SF Single Story building and site development

Construction Budget: $2.2 Million

Project Discipline:

Civil/Structural/Grants/CEI

Project Location:

Graceville, Florida

New Business Park Phase I Road and Utility

Project consisted of construction of 24’ wide asphalt paved roadway with curb and gutter, utilities, and drainage improvements. Water provided by extensions of the existing 10” county waterline, sewer provided by the existing county gravity sewer system. Stormwater provided by right-of-way conveyance to off-site drainage area, striping of restaurant area and SR 71.

The DHM team provided: Roadway and infrastructure design, grant services, and construction engineering inspection for the newly created business park

Collaboration: DHM worked seamlessly with Davidson Contracting, Inc., Jackson County Road Department, Jackson County Utilities Department, North Florida Asphalt, and Florida Public Utilities

Challenges/Highlights: High traffic patterns I-10 and State Road 71, multi-agency coordination, accelerated timeline

Size: 1-acre asphalt area, 20,677 SF building site

Construction Cost: $801,792.66

Project funded by: Florida Rural Infrastructure Fund

Project Discipline:

Civil /CEI / Grants Services

Project Location:

Marianna, Florida

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