As Project Principal, Charles Mitchell led the civil engineering design for the rehabilitation and utility modernization of Building 2 at the Johns Hopkins University Applied Physics Laboratory (JHU/APL) in Laurel, Maryland. The project began as a feasibility study evaluating multiple alignments for new electrical and communications ductbanks and generator pad locations, ultimately guiding the final design strategy. Charles oversaw full design and permitting services, including erosion and sediment control, site restoration, and coordination with Howard County agencies. Permitting efforts included redline revisions to an existing Site Development Plan (SDP), preparation of grading permit documentation, and support for the architect’s building permit submission. The scope also included topographic surveying, subsurface utility locating, and 24 Quality Level A test holes to support ductbank alignment and utility demolition. The project is pursuing LEED certification and reflects a forward-looking approach to infrastructure resilience, energy efficiency, and sustainable campus development.
As Design Principal and Engineer of Record, led the redevelopment of a former Girl Scout Camp in Ellicott City into Ilchester Park—a 3.5-acre public park designed to support nature-based recreation for Howard County residents. Under my direction, the project team delivered full civil engineering design and permitting services, including a new Environmental Concept Plan, Site Development Plan, and Sewer & Water Plans.
The design emphasized preservation of the site’s mature forest canopy, complying with Forest Conservation requirements through the establishment of Forest Preservation easements. I
Improvements included removal of outdated infrastructure, installation of new pavilions and nature play areas, permeable parking, accessible permeable surface trails, upgraded driveway access, and multiple green stormwater management facilities. Utility systems were extended and stubbed out to support future vertical structures, enabling phased implementation without rework.
Completed under Howard County’s Site and Landscape Design services contract, the project reflects a sustainable, community-focused approach to park development.
As Project Principal, I led the development and execution of the first-ever Stormwater Management Master Plan and Master Environmental Concept Plan (ECP) for the Johns Hopkins University Applied Physics Laboratory (APL) campus in Howard County. This groundbreaking initiative required close coordination with the Howard County Department of Planning & Zoning to establish a new permitting framework and reduce regulatory uncertainty for future campus improvements.
I oversaw a multidisciplinary team through the full scope of services, including:
Records research and stakeholder coordination with Howard County and APL.
Master ECP plan creation for four campus zones: Main, Montpelier, South, and Price Farm.
Stormwater management master planning, including GIS-based infrastructure modeling and future capacity analysis.
Wetlands, waterways, and streams delineation across all campus zones.
Parking inventory and ADA compliance review.
Updated aerial LiDAR survey covering 614 acres, integrated with utility and landcover data.
This initiative will significantly reduce permitting delays, improve data accessibility for facilities planning, and establish a replicable model for large institutional campuses in Howard County.
Led a multidisciplinary team in delivering comprehensive design and permitting services for a high-security infrastructure upgrade at APL’s primary vehicular access point. The project scope included the design of a new 2,400 SF Guard Center building, prefabricated guard booths with gate control arms, rated crash barriers, a canopy-covered vehicle inspection area, and extensive roadway and parking lot realignment to improve traffic flow, safety, and operational efficiency.
Oversaw all phases of design development—from 35% conceptual design through 100% issue-for-construction documents—ensuring coordination across architectural, structural, MEP, civil, and permitting disciplines. My leadership included managing subconsultants, facilitating stakeholder engagement through lab management presentations, and guiding the team through complex permitting with Howard County. This included preparing Environmental Concept Plans (ECP), Site Development Plans (SDP), redline revisions, and Grading and Building Permit packages, with a strategic approach that allowed civil/site permitting to proceed ahead of building permit approvals.
Throughout the project, I ensured alignment with APL’s programmatic goals and security requirements, coordinated with a Construction Manager at Risk (CMAR). The project exemplified strategic planning, technical excellence, and collaborative delivery for a mission-critical institutional client, reinforcing a long-standing partnership with JHU APL and a commitment to high-performance design in secure environments.
Led the feasibility study for the proposed relocation of Howard County Fire & Rescue Station 7 to a new site at on Cedar Lane in Columbia, MD. Directed a multidisciplinary team in evaluating the development potential of a 14,500 SF fire station and associated site improvements on an unimproved parcel. Oversaw project management, stakeholder coordination, and technical analysis including:
Site data collection, zoning review, and field investigation
Development of three conceptual site layouts
Stormwater management modeling
Feasibility-level cost estimating and grading plans
Preparation of a comprehensive feasibility report for Howard County DPW & DFRS
Delivered strategic recommendations to support capital planning and site acquisition decisions, ensuring alignment with county regulations and operational needs.
Led the civil design and delivery, as project principal, of the 9-acre land development for Building 28 at the Johns Hopkins University Applied Physics Laboratory (JHU APL). This transformative project includes a 400,000 GSF science and technology facility featuring laboratories, secure spaces, offices, food services, and an auditorium. Supporting infrastructure includes a 250-space parking lot, a 0.5-acre park, multiple stormwater management facilities, full-scope utility systems, loading docks, and mechanical equipment yards, all located within the secure perimeter of the APL campus.
Provided strategic leadership to the civil design team throughout feasibility analysis, design development, construction documents, permitting, and construction administration. As the licensed professional engineer of record, oversaw the production and approval of all civil design documents. The project was delivered under a Construction Manager at Risk (CMAR) model.
Notably, the project embraced sustainability and energy performance strategies that exceeded minimum code requirements, contributing to long-term operational savings and environmental benefits.
Managed the civil engineering design and delivery of a 220,000 GSF LEED Silver-certified research facility on a constrained 5-acre site, supporting advanced research operations for JHU’s Applied Physics Laboratory. Led a multidisciplinary team through site optimization analysis, preparation of construction documents, site development plans and fast track permitting with Howard County. Oversaw all phases of civil design, including site grading, utility infrastructure (storm drain, sanitary sewer, water, conduit), stormwater management, and pedestrian circulation.
Led interactive design workshops with JHU and HDR to streamline decision-making and regulatory approvals. Delivered innovative, cost-effective solutions for retaining walls, ADA-compliant pathways, loading docks, high bays, and service road improvements. Integrated eight micro-bioretention facilities and pervious pavement systems to treat 100% of impervious surfaces, meeting stringent stormwater management and LEED requirements.
Provided construction-phase support through contractor coordination, submittal reviews, and site inspections, ensuring compliance with design intent and regulatory standards. Successfully balanced complex site constraints, aggressive schedules, and stakeholder expectations to deliver a high-performance, sustainable facility.
The project obtained a LEED Silver certification.
As Project Engineer, led the civil/site design and construction support for three Outdoor Testing Areas (OTAs) ranging from 5 to 7 acres, a four-acre surface parking lot with 380 spaces, and associated site improvements across the 360-acre Johns Hopkins University Applied Physics Lab (JHU/APL) campus. The project supported APL’s expanding field testing and parking needs while integrating with concurrent campus development initiatives.
Utilized advanced site optimization tools and Civil 3D modeling to evaluate five layout options, balancing cut/fill volumes and utility design across multiple sites. A coordinated site analysis report was prepared for each option, detailing earthwork quantities, utility requirements, and cost estimates. A collaborative Site Planning Workshop with APL stakeholders enabled real-time scenario testing and consensus-building, which informed the development of environmental concept plans and final site development plans.
Key Design Features:
Three OTAs tailored to APL’s testing requirements
A 380-space surface parking lot integrated with existing campus infrastructure
Regrading of the front lawn to support campus-wide earthwork operations
Design of small CMU storage buildings at each site
Stormwater management BMPs and erosion/sediment control measures
Retaining wall design and utility infrastructure (electric, telecom, water)
Construction Phase Services:
Preparation of full construction documents for site layout, grading, utilities, and stormwater systems
Construction administration including review of RFIs and submittals
Regular site visits to monitor progress and ensure design compliance
Support for post-construction closeout activities and documentation
As Project Manager for the Gibson Library Renewal and Central Spark 2.0 Project at Johns Hopkins University Applied Physics Laboratory (JHU APL), provided civil engineering design and permitting support for the renovation of the existing library facility. Responsibilities included the design of a new electrical ductbank and an ADA-compliant access ramp to improve utility service and accessibility to the building.
Prepared and coordinated redline revisions to the Site Development Plan (SDP), not only for the library site but also for adjacent projects within the campus, ensuring consistency and compliance with Howard County regulations. Led the grading permit process by developing civil documentation and coordinating with County reviewers to facilitate timely approvals. During construction, provided civil engineering oversight through construction administration services, including review of submittals, responses to RFIs, and field coordination.
This project exemplified thoughtful integration of infrastructure upgrades within an active institutional campus and demonstrated an ability to manage complex permitting and construction support tasks in a collaborative, multidisciplinary environment.