Deep Rock Tunnel Connector

Indianapolis, Indiana, United States

Filter projects by:

Market

  • Cities

    Cities EMIA

  • Commercial & Residential

    Mixed Use

    Office

    Residential

    Retail

  • Education

    Colleges & Universities

    Schools

  • Energy

    Carbon capture, utilization and storage

    Geothermal

    Grid modernization

    Hydroelectricity

    Hydrogen

    Microgrids and energy storage

    Offshore wind

    Portfolio Decarbonization and Climate Resilience

    Solar

    Transportation decarbonization

  • Environment

  • Healthcare

    Clinical Hospital

    Life Sciences

    Senior Living

  • Industrial

    Agriculture, Food & Beverage

    Automotive & Heavy Equipment & Machinery

    Digital Infrastructure

    High Performance Logistics

    Manufacturing

    Mining & Metals

    Pharmaceutical/Specialty Chemicals

    Pulp & Paper

  • Justice

  • Leisure

    Arts and Culture

    Hotels and Resorts

    Themed Entertainment and Mixed-Use

  • National Governments

    Civil Works

    Disaster Resilience

    Infrastructure & Facilities

  • Oil, Gas & Chemicals

    Chemical/Petrochemical

    Downstream

    Midstream

    Upstream

  • Sports and Venues

    Collegiate

    Convention Centers

    Olympics & Mega-Events

    Stadiums & Arenas

  • Transportation

    Air Cargo

    Aviation

    Bridges & Tunnels

    Connected and Autonomous Vehicles

    Freight Rail

    Highways & Roads

    Mass Transit

    Ports & Marine

    Transportation decarbonization

  • Water

    Dams & Hydropower

    Flood and coastal resilience

    Industrial Water

    Tunnels, Conveyance, Collection & Distribution

    Wastewater Treatment & Reuse

    Water Treatment

    Watershed and Ecosystem Management

Service

  • AECOM Capital

  • Alternative Delivery Models

  • Architecture and Design

    Architecture

    Asset Advisory

    Climate Adaptation

    Community Engagement

    Interior Architecture

    Landscape Architecture

    Planning

    Urban Analytics

    Urban Design

    Urbanism + Planning

  • Asset Management

  • Cities Solutions

  • Construction Management

  • Converged Resilience

  • Cost Management

  • Digital Infrastructure Services

  • Economics

  • Electric Vertical Takeoff and Landing Solutions

  • Engineering

    Ground Engineering

  • Environmental Services

    Air Quality Consulting and Engineering

    Climate Adaptation

    EHS Management Consulting and Compliance

    Environmental Contracting

    Environmental/Social Impact Assessment and Permitting

    Management Information Systems (MIS)

    Remediation, Restoration and Redevelopment

  • Fabrication

  • Finance

  • Industrial and Commercial Operations and Maintenance

  • IT and Cybersecurity

  • Mobilitics

  • Multinational Investment and Development

  • Pedestrian Modelling (North America)

  • Planning and Consulting

    Geospatial Services

    Pedestrian Modelling

  • Process Development & Implementation

  • Program Management

  • Public-Private Partnerships

  • Risk Management & Resilience

    Critical Infrastructure Protection

  • Simulation Models

    Rail Simulations

  • Strategic consulting

    People + Place Advisory

  • Tunnels, Trenchless Technology and Underground Infrastructure

  • Vertical Transportation Services (North America)

  • Visualization and Virtual Reality

Location

  • Africa

  • Algeria

  • Antarctica

  • Australia

  • Azerbaijan

  • Bahrain

  • Bangladesh

  • Belgium

  • Bolivia

  • Bosnia and Herzegovina

  • Brazil

  • British West Indies

  • Canada

  • Caribbean-Puerto Rico

  • China

  • Colombia

  • Croatia

  • Czech Republic

  • Egypt

  • Eritrea

  • Finland

  • France

  • Germany

  • Greece

  • Greenland

  • Haiti

  • Hong Kong

  • India

  • Indonesia

  • Iraq

  • Ireland

  • Italy

  • Japan

  • Kenya

  • Kingdom of Saudi Arabia

  • Kuwait

  • Liberia

  • Lithuania

  • Malaysia

  • Maldives

  • Mali

  • Malta

  • Mauritania

  • Mexico

  • Monaco

  • Mongolia

  • Montenegro

  • Myanmar

  • Netherlands

  • New Zealand | Aotearoa

  • Norway

  • Oman

  • Panama

  • Papua New Guinea

  • Peru

  • Philippines

  • Poland

  • Portugal

  • Qatar

  • Romania

  • Singapore

  • Slovakia

  • South Africa

  • South Korea

  • Spain

  • Sri Lanka

  • Sweden

  • Switzerland

  • Taiwan

  • Turkey

  • Ukraine

  • United Arab Emirates

  • United Kingdom

  • United States

  • Vietnam

  • Worldwide

In an effort to improve the water quality for the City of Indianapolis, Indiana, Citizens Energy Group looked to build a combined sewer overflow (CSO) collection system at multiple locations. The project, in conjunction with the U.S. Environmental Protection Agency and the Indiana Department of Environmental Management, will run approximately 25 miles (39 meters) long and remove combined sewage from eight local rivers and streams.

The first phase of the project is the Deep Rock Tunnel Connector (DRTC), a 7.6-mile (12.2-kilometer), 18-foot (5.5-meter) diameter tunnel located 280 feet below the surface in a rock cavern. Three CSOs will capture sewage from the city’s largest overflow points and then transport it to a below ground Deep Rock Tunnel Connector Pump Station (DRTC PS), from where it will then be pumped to a wastewater treatment plant. The project is estimated to be completed in 2017 and will initially deliver 54 million gallons of the planned 270 million gallons of CSO storage for treatment, as well as provide future connections to other tunnels in the overall system.

AECOM provided design for the main tunnel of DRTC and DRTC PS. The tunnel design was completed using a tunnel boring machine. Multiple world records were broken during the course of the tunneling phase, including “Most Feet Mined in One Day,” “Most Feet Mined in One Week” and “Most Feet Mined in One Month.” The next phase will involve the construction of an 18-foot (5.5-meter) diameter cast-in-place concrete liner.

Estimated to be completed in 2025, the overall project will significantly reduce sewage overflows into Indiana waterways and improve water quality for the area.