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Del Walker,T-REX Construction Oversight Manager

METRO DENVER, COLORADO. Project Overview. Del Walker,T-REX Construction Oversight Manager. AASHTO SCOE/SCOD Meeting – June 9, 2004. Transportation Expansion Project. Project Map with Station Locations. Transportation Expansion Project. Light Rail Elements.

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Del Walker,T-REX Construction Oversight Manager

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  1. METRO DENVER, COLORADO Project Overview Del Walker,T-REX Construction Oversight Manager AASHTO SCOE/SCOD Meeting – June 9, 2004

  2. Transportation Expansion Project Project Map with Station Locations

  3. Transportation Expansion Project Light Rail Elements • Double track system (approximately 19 miles) • West side alignment along I-25 (from Broadway to Lincoln Avenue in Douglas County) • Median alignment along I-225 (from I-25 to Parker Road) • 13 Stations with parking at 12 stations • No at-grade crossings (trains will not interfere with traffic) • High speed • Operational efficiency • Increased safety • Additional light rail vehicles • New maintenance facility

  4. Transportation Expansion Project Highway Elements • Four through lanes in each direction on I-25 (Logan Street to I-225) • Five through lanes in each direction on I-25 (I-225 to C-470/E-470) • Three through lanes in each direction on I-225 (I-225 to Parker Road in Aurora) • Safety/operational improvements: • Acceleration/deceleration lanes • Shoulders widened where feasible • Interchange reconstruction at 8 interchanges (not all major) • Complete reconstruction of I-25/I-225 Interchange • Complete reconstruction of “Narrows” (Broadway to Steele Street in Denver) • Replace numerous bridges • Drainage upgrades • TransOptions and Intelligent Transportation System (ITS) elements

  5. Transportation Expansion Project Corridor Development • Summer 1995 – Major Investment Study (MIS) began by the Colorado Department of Transportation (CDOT) • Fall 1997 – Denver Regional Council of Governments (DRCOG) adopted MIS recommendations • Spring 1998 – CDOT began Preliminary Engineering/ Environmental Impact Statement (PE/EIS) • Fall 1999 – Final EIS completed • Spring 2000 – Record of Decision (ROD) filed by the Federal Transportation Administration (FTA) and Federal Highway Administration (FHWA)

  6. Transportation Expansion Project CDOT and RTD Inter-Governmental Agreement • CDOT and RTD executed on September 9, 1999 • Establish the foundation for the new relationship • Work cooperatively together to finance/construct the Southeast Corridor Multi-Modal Project • Implement the Project using a single Design-Build Contract for the highway and light rail transit improvements • Agreement on the exclusions from the Design-Build Contract • Inter-Governmental Agreement (IGA) is unique nationally for a state DOT and transit agency

  7. Transportation Expansion Project Project Goals • To minimize inconvenience to the public • To meet or beat the total program budget of $1.67 billion • To provide for a quality project • To meet or beat the schedule to be fully operational by June 30, 2008* * Southeast Corridor Constructors (SECC) committed to complete by Fall 2006 (22 months ahead of schedule)

  8. Transportation Expansion Project Project Budget and Funding Sources • Projected budget: $1.67 billion • Light rail elements: $879 million • Highway elements: $795 million • Voter approved bond proposals for highway and rail elements (1999 election) • No new taxes or increases to existing taxes • Full Funding Grant Agreement (FFGA) of $525 million through FTA signed on November 17, 2000 • Several municipalities and jurisdictions have committed $30 million in local matching funds

  9. Transportation Expansion Project Design-Build Concept • What is it? • Designing and constructing a project simultaneously • Why are we doing it this way? • The combination of design work and construction into one Contract results in cost efficiency and more innovative and fast-tracked solutions • The T-REX Team provided 30% complete design plans, the Design-Build Contractor completes the design while constructing the project • Allows for flexibility, creativity, and innovation by the Design-Build Contractor

  10. Transportation Expansion Project Southeast Corridor Constructors Profile Joint Venture Partnership of Kiewit Construction Company and Parsons Transportation Group: • Subcontractors • Mass. Electric Construction – Sturgeon Electric • Rocky Mountain Signing – Elmore Pipe Jacking • GE Transportation Systems – Penhall Company • American Civil Constructors – Dynaelectric • GE Harris Harmon • Subconsultants • DMJM-Harris – Terracon • Sverdrup Civil – HNTB Corporation • Turner Collie & Braden – Kleinfelder

  11. Transportation Expansion Project Project Uniqueness • Multiple agency coordination • Multi-modal approach • Design-Build construction • Primary goal: minimizing inconvenience to the public

  12. Transportation Expansion Project Key Elements of EIS Environmental Process • Joint FHWA / FTA Lead Agencies • Extensive Public Involvement Program • Agency Involvement on Task Forces • Noise • Air Quality • Wetlands

  13. Transportation Expansion Project Public and Agency Involvement During EIS • Policy Committee • Technical Committee • Public Open Houses • Neighborhood Meetings • Website • Focus Groups • Newsletter

  14. Transportation Expansion Project Key Environmental Issues During EIS • Air Quality • Corridor assessment • Hot spot analysis • Noise • Historic Resources / Section 4(f) • Hazardous Materials • Wetlands (approx. 5 acres) • Acquisitions • 6 houses, 1 duplex, 1 apartment building • 19 office buildings

  15. T-REX Environmental Overview • T-REX Environmental Compliance Approach • Place the responsibility for compliance on the Design/Build Contractor • Provide FEIS and ROD documents as Contract requirements • Evaluate Personnel and Environmental program plans as part of the selection process • Require Approval of Environmental documents prior to construction • Require monthly reporting of compliance activities • Partner with the Design/Build Contractor to facilitate speedy resolution to issues • Utilize Compliance Auditing techniques to ensure the Design/Build Contractor is meeting Contract commitment obligations.

  16. T-REX Environmental Overview Challenges of a project of this scale • Vast space required • Design Build • Efficiency

  17. T-REX Environmental Overview Noise • Contractor required to analyze and mitigate noise impacts in accordance with Federal Guidelines • Noise mitigation measures were identified in the FEIS, ROD, and RFP • Noise Walls (Highway mitigation) • Ballast mats, spring frogs (LRT mitigation) • Public involvement in consideration of construction mitigation measures • Denver noise ordinance adherence/variance • Successfully secured CCD noise variance for construction operations • Innovative noise mitigation during construction • Continuous monitoring during nighttime Bridge Demolition and other noise sensitive activities • Provide hotel vouchers for affected residents

  18. T-REX Environmental Overview Noise Trailers along I-25

  19. T-REX Environmental Overview Air Quality • Contractor required to implement an air quality monitoring and mitigation plan • PM10 monitors throughout project • Project installed meteorological station • Dust suppression during construction • Report to CDPHE monthly • Raw data and summary report • Mitigation measures taken • Implement Traffic Demand Management strategies to minimize air quality impacts • HOV lane implementation • Transit, Van Pool, subsidies • Encourage carpool, telecommuting, and flextime with businesses

  20. T-REX Environmental Overview Meteorological station PM10 monitoring site

  21. Transportation Expansion Project Water Quality • Contractor required to develop strategies to ensure water quality during and after construction • T-REX obtained permits: • MS4 (Municipal Separate Storm Sewer) • Contractor obtained permits: • CDPHE/CCD Construction discharge permit • CDPHE/CCD Construction dewatering permit • CDPHE General Construction NPDES permit • Report to CDPHE quarterly • Raw monitoring data and summary report • Stormwater Management Plan revisions • Bi-weekly inspections • CDOT Erosion Control Advisory Team monthly review

  22. Transportation Expansion Project BMP placements and “Lake Logan”

  23. Transportation Expansion Project CDPHE Notice of Violation/Cease and Desist Order • May 19, 2003 – Colorado Department of Health and Environment issued NOV to the Southeast Corridor Constructor Contractors • Citation alleged violations, of the Colorado Water Quality Control Act and implementing control regulations associated with the construction activities • Citation made use of T-REX compliance auditing information as basis for many of the violations • The Contractor has effectively responded to all action items identified within the NOV. • Recent T-REX compliance audit activity suggests a significantly improved stormwater quality program is in place to mitigate water quality concerns.

  24. Transportation Expansion Project Hazardous Substances • Phase I and Phase II investigations to identify potential contamination accomplished by T-REX prior to construction. Info made available to the D/B Contractor prior to bidding • Contractor required to manage, classify, treat, or dispose of hazardous substances, both known and unknown throughout project to prevent exposure to workers and the public • Approve Health and Safety Plan, and Approve Materials Management Plan • Sampling and Analysis Plan to identify potential contaminants prior to construction • Incorporation of CDOT Standard Specifications for Health and Safety Management • All remediation plans are approved through T-REX

  25. Transportation Expansion Project Various Locations throughout project

  26. Transportation Expansion Project Protected Species • Contractor required to comply with SB 40, SB 99-111 and FEIS • Minimize impacts to wildlife and their habitat during construction • Survey of prairie dog, burrowing owl, and swallows nests prior to construction activities (continuously) • Successfully relocated approximately 100 prairie dogs to Cherry Creek State Park (across County lines)

  27. Transportation Expansion Project Protected Species Burrowing Owl Prairie dog

  28. T-REX Environmental Overview Cultural Resources • Contractor required to monitor excavations for archaeological/paleontological materials • Contractor commitment to halting construction operations upon discoveries • Communication with CDOT’s archaeological resources • Contractor working in cooperation with Denver Museum of Nature and Science on assessment and recording of significant findings • T-REX, in coordination with the State Historic Preservation Officer, has been recording historical portions of the project for listing on the State Register of Historic Places • I-25/I-225 Overpass • General Iron Works • I-25 “Narrows”, between Logan St. and Evans Ave

  29. T-REX Environmental Overview www.trexproject.com

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