Client

Electric Transmission Client

Key Services

  • Environmental Construction Inspection

Project Details

Coastal Resources, Inc. (CRI) provided environmental compliance inspection services and reporting for three electrical transmission projects whose purpose was to enhance reliability and/or upgrade the electrical transmission infrastructure in Prince George’s and Montgomery Counties, Maryland. The project included:

Reliability Enhancement Project Circuit 69006 Segment 1: Replacement of wooden transmission poles with stronger, steel poles over a distance of approximately 5.9 miles along Central Avenue in Prince George’s County. The project limits were in close proximity to protected resources such as wetlands and waterways. Construction of the upgrade project spanned approximately 12 months to complete the majority of the work in public spaces and in existing transmission right-of-way.

Takoma to Sligo: Installation of three 69 kV underground feeders between the Takoma and Sligo Substations in Silver Spring. Construction for this project began near the Sligo substation in September 2017 and is expected to continue through December 2022. The work affects traffic along several roads including Fenton Street, Eastern Avenue, and New Hampshire Avenue.

Sligo to Linden: Installation of three 69 kV underground feeders between the Sligo and Linden Substations in Silver Spring. Construction for this project will begin near Sligo substation in September 2017 and is expected to continue through December 2022. The work affects traffic along several roads including Georgia Avenue, Seminary Road, and Montgomery Street.

For all projects, CRI’s inspectors reviewed project E&S Plans, Permits, and other contract documents to gain a thorough understanding of all environmental compliance requirements and commitments. Inspectors then performed regular site visits (weekly and bi-weekly depending on the project and construction schedules) to document that all environmental compliance measures, such as erosion and sediment (E&S) controls and best management practices (BMP’s) are installed properly and being followed as permitted. Noncompliance or potential noncompliance issues noted in the field were brought to the contractor’s attention for immediate remediation. Site conditions were documented following each site visit in electronic reports submitted through an Environmental Compliance Achievement Tracking (ECAT) system. Reports noted any issues or potential issues and how they were resolved. Issues that could not be resolved with the contractor immediately onsite were documented and elevated to the client and project leadership to ensure timely resolution.

CRI’s construction inspectors provided coordination between the contractor, regulatory compliance agencies and the client as necessary throughout the project. In addition to regular reporting, CRI staff conducted site visits and reporting following significant rain events (>1/4” within 24 hours) to identify any compliance issues and ensure that no significant discharge of sediment had occurred. Weekly NPDES reports were also prepared to report back to the Maryland Department of the Environment to provide a record of any compliance issues and how they had been addressed.

CRI also participated in weekly project progress and coordination meetings. Staff followed established safety protocols throughout the project and participated in daily safety evaluations of site conditions prior to any site walks. Any noted safety hazards or issues were discussed at project coordination meetings to ensure all staff were alert to potential hazards.