Alternative Delivery, Design/Build and Public Private Partnerships

3e brings a wealth of practical experience and unparalleled capability to address the environmental needs of Alternative Technical Concept (ATC), Design-Build (DB), and Public Private Partnership (P3) infrastructure projects.  The key to our success has been the depth and diversity of our professional service offerings.  We have effectively coordinated all of the environmental requirements of numerous design build projects from preliminary engineering through final construction including NEPA documentation, hazardous material assessment and remediation, natural resource evaluation including threatened and endangered species surveys, cultural resource coordination, mitigation strategies, storm water compliance and construction administration as it pertains to environmental conditions.   3e has developed the tools and protocols to ensure effective coordination with the Construction Contractor and Design Team from initial conceptual planning through final construction.  This experience has allowed us to develop and refine a series of best practices for environmental due diligence, assessment of natural resources, obtaining all required permits and approvals in a timely fashion, development of special conditions that do not impede and impose undue costs on the construction, development of effective avoidance and minimization strategies, and maintaining compliance with permits and approvals throughout the construction process.  We maintain excellent working relationships with the regulatory community and we understand all aspects of the various environmental requirements of the federal and state regulatory agencies.


I-64 Segment II Capacity Improvements, Hampton to Williamsburg, Virginia

The Project is the second segment of a 75-mile section of l-64 between Richmond and Hampton, VA that will undergo capacity improvements that include travel lane reconstruction and addition, shoulder widening/strengthening, repair/widening of nine bridges and six box culverts, acceleration/deceleration lane extension, and construction of stormwater management facilities. To implement the 2013 FHWA/VDOT EIS, 3e provided environmental and natural resources services for the design-build contractors charged with construction of the 7-mile Segment II between Routes 199 and 238 on a 460 acre corridor through eastern part of the Williamsburg region. 3e completed jurisdictional delineations finding approximately 9.32 acres of wetlands of four cover types, and approximately 8,875 linear feet of 26 surface water channels of three flow regimes. 3e submitted a PJD and report for pre-permit planning, and initiated permitting assessments for unavoidable project impacts including avoidance and minimization. 3e also completed a Phase I Environmental Site Assessment to identify RECs, performed an Asbestos Containing Materials/Bat Occupancy Inspection for bridges, and completed threatened and endangered species studies and coordination documenting potential habitat status for state listed mole salamanders and bats, and coordinated federally listed T&E species for the project area through the USFWS’s IPaC process as a precursor to permitting requirements.    


Route 3 Widening, Culpeper, Virginia

Route 3 Widening

The 3e team is providing environmental and natural resources services for the design and construction of the widening of approximately 5.2 miles of Route 3 from a two lane undivided highway, to a four-lane divided highway in Culpeper County, VA.  3e provided environmental services on the project including wetland delineation, permitting and construction monitoring, threatened and endangered species evaluations and consultations, Stormwater Pollution Prevention Plan (SWPPP) development and permitting, and various hazardous materials investigations. 3e was responsible for the following tasks during the project:

  • Waters of the U.S. Delineation, Permitting and Monitoring
  • Compliance with NEPA, Section 7 and Section 106 Commitments
  • Virginia Stormwater Management Permit (VSMP) Preparation
  • Hazardous Materials, Asbestos Survey, and Building/Well & Septic Demolition Support 

Odd Fellows Road Improvement & Route 460 Interchange, Lynchburg, Virginia

3e prepared the natural resources, wetlands and hazardous materials technical reports for this 3-mile roadway improvement and interchange project. The project area featured a complex mix of water resources and cultural resources. Under the project, 3e was responsible for the following:

  • DEQ WVP, USACE Section 401/404 Individual Wetland Permits, Compensation and Monitoring
  • Stormwater Permitting
  • Stormwater Pollution Prevention Plan (SWPPP)

Route 58 Improvements, Hillsville to Meadows of Dan PPTA Project, Hillsville, Virginia

3e assisted the prime consultant with developing stream relocation/restoration design plans for a permittee-responsible mitigation site in Pulaski County to compensate for unavoidable impacts on the Route 58 E-02 and E-11 project located in the portions of Carroll and Floyd County that are in the New River drainage. The Pulaski mitigation site was active farmland that drains to an unnamed tributary of Bentley Branch, a perennial tributary to the New River.  The topography of the site was gently rolling with deeply incised channels. The areas proposed for mitigation use and construction are active cattle grazing areas situated on existing compact stream terraces. These areas have limited to no woody vegetation, and stream channels are in various states of disequilibrium that require restoration to return the channels to a stable form such that existing accelerated bank erosion can be reduced. The stream terraces vary from very poorly drained areas in springs and depressions (former drainage ways) to well-drained alluvial deposits.

3e’s scope of work for this project included the following services:

  • Coordination with Other Contractors and Regulatory Agencies
  • Delineation of Streams and Wetlands
  • Due Diligence (Threatened and Endangered Species Studies, Hazardous Materials Studies and Cultural Resource Clearance)
  • Collection of Site Data
  • Site Surveys
  • Conceptual Plans
  • Substantially Complete Plans and Success Criteria Monitoring Plan
  • Permit Modifications
  • Final Plans
  • Construction Monitoring
  • As-Built Surveys and Verification of Mitigation Credits
  • Post Construction Monitoring for a 10-year span
Bentley Branch Aerial

Midtown Tunnel, Downtown Tunnel & MLK Expressway Extension, Portsmouth, Virginia

Underneath the Downtown Tunnel
Wipe Sampling in Midtown Tunnel

3e provided pre-construction environmental services, including environmental site characterizations, hazardous materials management, environmental permits, and environmental compliance plans and construction support to the Design-build contractor for this 2.5-billion dollar PPTA project.  The Midtown Tunnel (MTT), Downtown Tunnel (DTT), and Martin Luther King (MLK) Freeway Extension (MTT/DTT/MLK) included refurbishment of the existing MTT and DTT and construction of a new parallel tunnel under the Elizabeth River.  The MLK Freeway Extension consists of extending the existing freeway south from London Blvd to Interstate 264.  The completed four-lane, limited access freeway will provide a direct connection from I-264 to the MTT and a direct connection between the Western Freeway and DTT.  3e tasks included:

  • Corridor Level Environmental Records Report and Phase I Environmental Site Assessments for the HERC and Murro Chemical Properties
  • Hazardous Material Investigation of the existing Midtown and Downtown Tunnels and Associated Support Facilities
  • Hazardous Materials Investigation of Potential Soil, Surface Water, and Groundwater Contamination along the MLK Extension
  • Preparation of Construction Hazardous Material Management and Spill Prevention Control and Countermeasure (SPCC) Plans

Fairfax County Parkway: Phase I, II, IV; Fort Belvoir, Fairfax County, Virginia

3e was responsible for environmental and environmental engineering studies, site characterization and remediation and environmental and Clean Water Act permitting for a 2.4-mile extension of Fairfax County Parkway from the Franconia-Springfield Interchange to Interstate 95. This was a $124-million-dollar Design-Build project that created a new interchange for Fort Belvoir to support significant expansion at the former Engineer Proving Ground under the Base Realignment and Closure process. This federally funded project was managed by the USACE, FHWA and VDOT under a MOA, and posed significant challenges under a number of environmental programs. 3e’s Relevant Experience and Key Accomplishments on this project included:

  • Complex environmental permitting and environmental permit compliance monitoring/inspection in accordance with the Clean Water Act and related natural resources
  • RCRA/hazardous materials management, feasibility studies, and remediation
  • Coordination with regulatory agencies including EPA, DEQ, USACE, and VDOT
  • Environmental engineering including remediation design, sampling and analysis plans, SAP, QAAP, cost estimates, specifications, and construction inspection for a remediation project
  • Success in meeting Congressionally-mandated fast-track project schedule goals
  • Construction inspection and compliance monitoring services 

I-81 Truck Climbing Lanes, Salem, Virginia

3e provided natural resource studies, permitting services, and hazardous material evaluations and asbestos surveys for the Virginia Department of Transportation (VDOT) and the prime contractor for the proposed construction of a truck climbing lane along five miles of southbound Interstate 81 in Montgomery County, Virginia. The project also involved total replacement of three bridges, upgrading all guardrail structures to meet current standards, the construction of retaining walls required for bridge structures, pavement and drainage improvements, and right of way acquisition. 3e was responsible for the following tasks under this project:

  • Delineation of Wetlands and other Waters of the US (WOUS)
  • Threatened and Endangered Species Surveys and Habitat Assessments
  • Environmental Permitting and Categorical Exclusion
  • Coordination with Regulatory Agencies
  • Environmental Site Assessment
  • Asbestos-Containing Materials (ACM) Surveys of Three Bridges
I-81 Truck Climbing Lanes

West Runway Replacement, Joint Base Andrews, MD

AAFB Approach Lighting Replacement

3e provided environmental management services for the Andrews Air Force Base West Runway Repairs Project.  The work covered a wide range of environmental compliance services including: hazardous materials and waste management, environmental management systems (EMS), environmental training, and permit compliance including spill prevention, air emissions, (NPDES) stormwater management, erosion and sediment control, and waste manifests/management.  3e was responsible for the following tasks under this contract:

  • Environmental Protection Plan
  • Environmental Restoration Areas
  • Asbestos and Lead-based Paint Management
  • Environmental Permitting and Compliance

Route 460 Corridor Improvements Project, Southeastern VA

3e was contracted to provide environmental and natural resources services for the design and construction of a 55-mile four-lane divided highway between Prince George County and the City of Suffolk, Virginia. Prior to the commencement of the work, 3e submitted a health, safety, and security plan consistent with the Health, Safety, and Security Plan of Design-Builder for review and approval. In addition, 3e participated in coordination meetings with the regulatory agencies to address means and methods of all of the investigations and activities. 3e was also responsible for meetings with all Private Parties to address issues and/or concerns associated with the activities included in this project.

3e provided quality assurance for the environmental data and information delivered for this Project once the Jurisdictional Determination ("JD") locations had been processed and applied to the aerial mapping digital files by the surveyor. 3e then verified that all locations are included in the base file and that the information provided was accurate and complete. For materials provided 3e provided both quality control reviews and quality assurance verification in accordance with prescribed QA/QC protocols.

3e was responsible for the following tasks in the 3,400-acre corridor:

  • Threatened and Endangered Species Information Request Letters and Habitat Assessments and Species Surveys
  • Delineations of Wetlands and Waters
  • Stream Assessments
  • Jurisdictional Determinations of Wetlands and Waters
  • Landowner Coordination and Database Development
  • Joint Permit Application Preparation