Pena Station

Phase 1 Infrastructure Development

PROJECT SCOPE

Iron Woman was contracted by Hensel-Phelps to provide installation of two miles of deep sanitary sewer (30’) in heavy groundwater and more than two miles of new water lines that required close coordination with the project storm water system installation. The two-mile storm package included large runs of various sizes and a large drainage channel comprised of soil rip rap, large boulder drops, hand sculpted spillways and swirlbays.

Utilities: Water, Storm & Sanitary

  • 1-mile 4” and 6” PVC non-potable water line
  • 2 miles of domestic water lines from 8” to 16” PVC with associated valves and hydrants
  • 2 miles of storm sewer lines (5’ x 3’ – 12’ x 5’ CBC, 18” – 54” RCP, and 18” – 48” RCP FES) with associated inlets and manholes
  • Large drainage channel consisting of soil rip-rap, large boulder drops, hand sculpted spillways and swirl bays for improved sediment capture
  • 9,140 LF of sanitary sewer ranging from 8” to 24” to depths of 30’ in heavy ground with associated connections
  • 2,620 LF sanitary force main ranging from 12” to 24” with connections to existing lift stations and manholes

Civil: Excavation & Earthwork

  • Excavation shoring and trench box placement
  • Channel stabilization
  • Class 6 RB maintenance road & access trail
  • Flowfill and grading
  • Asphalt demo and subgrade compaction

Environmental: Effluent Monitoring for Dewatering Activities

  • Effluent monitoring during 10 weeks of dewatering activities
  • Regulatory compliance and reporting
  • Channel clean-up

Transportation & Disposal

  • Aggregate delivery
  • Onsite hauling of utility spoils
  • Demo & haul concrete waste
  • Removal of unsuitable fill

This multi-jurisdictional project required effective communication to coordinate the efforts of various districts, agencies and subcontractors engaged in the work. On a technical basis, notable challenges included the installation of a deep sanitary sewer line with a sanitary force main in heavy groundwater requiring significant dewatering activities.

OVERVIEW

PRIME / CLIENT

Hensel-Phelps Construction

OWNER

L.C. Fulenwider, Inc.

SERVICES

  • Environmental Services
  • Civil and Site Services
  • Utilities (Water, Storm and Sanitary)
  • Trucking

VALUE

$10.6 million

About the Project

Pena Station NEXT is one part of a 7,500-acre strategic development surrounding the Denver International Airport (DIA). This 400-acre development is slated for an eight city block mixed-use neighborhood includes the recently completed Downtown Denver – DIA rail line that serves as its western boundary. Sustainability is a focus on this project from the infrastructure build-out to the development of advanced smart-city technology throughout; one reason it will be the new headquarters for Panasonic Enterprise Solutions Division.

  • Complete development commitment to long-term sustainability through strategic partnership with Panasonic Enterprise Solution’s CityNOW initiative
  • More than $10 million of integrated services provided by Iron Woman kept the work on time and included utilities, site services, environmental, transportation, waste characterization, and disposal
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