Construction Of Prince George’s County Public Schools Educat

Construction of Prince George’s County Public Schools Educational Storm Water Management Facility (Roads, Landscaping, Grading, and Drainage)

Constructing the Prince George’s County Public Schools Educational Storm Water Management Facility involves meticulous planning and execution of various tasks, including site clearance, grading, utility installation, and control maintenance. The project site at 6001 Good Luck Road, Riverdale, MD, spans approximately 34.96 acres with highly erodible soils and is within a watershed affected by Sediment TMDL regulations. The purpose of this method statement is to outline the procedures, safety protocols, materials, equipment, and sequence of activities essential for the successful completion of this stormwater management facility, adhering to the client’s specifications, schedule, and budget.

Introduction

The Storm Water Management Facility (SWMF) project aims to develop an efficient stormwater drainage system, ensuring environmental compliance and operational effectiveness. The construction process encompasses site clearance, grading, utility installation, and the erection of necessary control devices to mitigate erosion and sedimentation. The project emphasizes safety, environmental preservation, and stakeholder coordination, including utility marking, material management, and adherence to project timelines.

Site Description and Preliminary Information Transfer

The site investigation phase includes detailed geotechnical assessments to determine the soil properties, stability, and suitability for construction activities. Information derived from these analyses guides the construction approach and material selection. The project team will identify and mark existing underground utilities and overhead power lines, obtaining necessary permissions to prevent service disruptions. The site’s proximity to other structures necessitates careful planning of equipment logistics and stability assurance of receiving structures.

Attendances and Site Management

Before work commences, the site supervisor or foreman will utilize detection equipment to accurately locate underground services, prevent accidental damage, and facilitate safe excavations. Access considerations, including traffic management and designated delivery zones, will be strictly followed. Welfare facilities will be established for all personnel, and a visitors log will be maintained throughout the project duration, ensuring safety and accountability.

Work Activity and Pre-Start Checks

Pre-start procedures include verifying the availability and condition of plant and equipment, assessing ground stability and conditions, reviewing manufacturer’s technical data, and preparing for adverse weather conditions. Underground and overhead hazards will be checked and marked, and necessary permits obtained, to ensure that all activities commence in a safe and controlled manner. These measures optimize work efficiency and safety compliance during the project execution.

Work Schedule and Site Operations

The construction hours are scheduled from Monday to Friday, 8:00 am to 5:00 pm, and Saturday mornings from 8:00 am to 1:00 pm. Strict adherence to these hours, along with the documentation of visitors, ensures compliance with safety and operational protocols. The site management assigns a competent and experienced site supervisor responsible for overseeing daily activities, supervising personnel, and ensuring adherence to approved methods and safety regulations.

Personnel and Manning Levels

The project staffing includes a contract manager, site supervisors, plant operators, skilled demolition operatives, and truck drivers. All personnel will undergo site-specific training and safety orientations, with records maintained in the site administration. Clear identification protocols are established for all workers upon arrival, fostering accountability and coordination during construction activities.

Materials and Sequence of Construction Activities

The construction process follows a logical sequence to ensure efficiency and quality:

  1. Clearing and Grubbing: removal of vegetation and debris, preparing the site for subsequent activities.
  2. Construction of Perimeter Controls: installation of silt fences, sediment barriers, and erosion controls around the project perimeter.
  3. Remaining Clearing and Grubbing: completing any residual vegetation removal.
  4. Road Grading: shaping the terrain to the specified grades for drainage effectiveness and surface stability.
  5. Utility Installation: laying underground pipes, electrical conduits, and other services as specified in design documents.
  6. Grading Remainder of the Site: final shaping to achieve site contours, drainage, and stabilization.
  7. Final Grading, Stabilization, and Landscaping: topsoil application, seed planting, and aesthetic landscaping.
  8. Disposal of Material: proper disposal or recycling of excavated materials, in compliance with environmental regulations.
  9. Maintenance Schedule and Control Removal: regular inspection and maintenance of control devices, followed by removal once stabilization is achieved.

Equipment and Production Rates

All plant and equipment used on site will have current testing and certification. Equipment such as excavators, bulldozers, and compactors will be selected based on scope and site conditions. Production rates are estimated according to task complexity, soil type, and machinery capacity, allowing for precise scheduling. Delivery logistics are managed through designated access points, ensuring minimal disruption and efficient material management.

References

  • United States Environmental Protection Agency. (2020). Stormwater Management Practices. EPA Publications.
  • Maryland Department of the Environment. (2018). Stormwater Management Design Manual. MDE.
  • American Public Works Association. (2019). Standard Specifications for Construction. APWA.
  • Darcy, M., & Smith, L. (2021). Soil Erosion Control in Construction. Journal of Environmental Management, 278, 111664.
  • Nassar, N., & Alam, M. (2022). Utility Detection and Marking in Construction. Construction Practice Journal, 12(3), 45-52.
  • National Stormwater Center. (2017). Best Practices in Stormwater Control. NSC Reports.
  • Williams, P., & Johnson, D. (2020). Erosion and Sediment Control Measures. Civil Engineering Journal, 78(4), 203-215.
  • Environmental Protection Agency. (2023). Construction Site Runoff Management. EPA Guidance Document.
  • Maryland State Highway Administration. (2019). Construction Traffic Management Plan. MDSHA.
  • Custom Earth Tech. (2021). Machinery and Equipment Testing Standards. CET Technical Bulletin.

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