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Road Closure: Carpenter Way Area Street Closures View Closure

Resources for journalists, partners, and the public.

Photos, video, documents and background on ALCOSAN's regional tunnel system, free to use for news coverage and public information.

Need a quote, interview, or site visit? Start here.

For media inquiries about ORT, ART, MRT, or the broader regional clean water program, please reach out to the ALCOSAN Public Information Office. We typically respond within one business day.

Ohio River Tunnel

ORT project inquiries

Construction milestones, site activity, community engagement, and ORT-specific public meetings.
Allegheny River Tunnel

ART project inquiries

Future-phase planning, route updates, and forthcoming public engagement opportunities.
Monongahela River Tunnel

MRT project inquiries

Conceptual planning, watershed coordination, and early communication around the MRT phase.

Approved photography for editorial use.

Browse construction progress, aerial views, community moments, and equipment up close. Click any image for full resolution.

Map of the Allegheny River Tunnel, showing the proposed alignment of the main tunnel, starting in the City of Pittsburgh at the end of the Ohio River Tunnel and running east through Millvale, Etna, and Sharpsburg. The map also shows the Upper Allegheny Consolidation Sewer (UACS) project, which begins in Sharpsburg, runs through O’Hara and Aspinwall, and ends in the City of Pittsburgh. The map also shows the locations of the near surface facilities such as drop shafts, access shafts, regulators, and a flow d Allegheny River Tunnel (ART)
Map of the Allegheny River Tunnel, showing the proposed alignment of the main tunnel…
Cross-section of the O07 site showing a 50-foot-diameter access shaft connecting to the Chartiers Creek Tunnel about 150 feet below ground, with an outfall modification and tunnel ventilation. O07 Site
Cross-section of the O07 site showing a 50-foot-diameter access shaft connecting to the…
Cross-section of the A58 site showing existing sewers and regulators connecting to a 130-foot-deep drop shaft and the Ohio River Tunnel about 140 feet below ground, with proposed gate control and ventilation facilities. A58 Site
Cross-section of the A58 site showing existing sewers and regulators connecting to a…
Aerial plan of the AS1 site showing the Ohio River Tunnel about 150 feet underground, a 70-foot-diameter drop shaft, tunnel connections, new sewer, and five-acre construction area. AS1 Site
Aerial plan of the AS1 site showing the Ohio River Tunnel about 150 feet underground, a…
Cross-section of the AS1 main construction site showing a 160-foot-deep access shaft connecting the Ohio River Tunnel, Ohio River Tail Tunnel/Allegheny River Starter Tunnel, and future Monongahela River Tunnel. AS1 Site
Cross-section of the AS1 main construction site showing a 160-foot-deep access shaft…
A48 Construction Site Ohio River Tunnel (ORT)
A48 Construction Site
O41 Construction Site O41 Site
O41 Construction Site
A58 Construction Site A58 — Construction
Construction staging at the A58 shaft site on the North Side. Photo: ALCOSAN
AS1 Construction Site AS1 Site
AS1 Construction Site
Monongahela River Tunnel Monongahela River Tunnel (MRT)
Monongahela River Tunnel
Allegheny River Tunnel Allegheny River Tunnel (ART)
Allegheny River Tunnel
Ohio River Tunnel Ohio River Tunnel (ORT)
Ohio River Tunnel
drop shaft Ohio River Tunnel (ORT)
drop shaft

Watch the system come to life.

From explainers to construction timelapses, our video library makes complex infrastructure feel real.

Visit YouTube channel →

Fact sheets, reports, and public filings.

The official document library — fact sheets, environmental reports, public meeting materials, and project filings.

DocumentProjectTypeSizeActions
PDF
Clean Water plan Faqs
Updated Aug 25, 2026
All projects 383.05 KB
PDF
Clean Water Plan Brochure
Updated Aug 25, 2026
All projects 3.21 MB
PDF
2020-consent-decree.pdf
Updated Jul 27, 2026
All projects Report 8.37 MB

Right-to-Know requests

Looking for a record that isn’t published here? Pennsylvania’s Right-to-Know Law lets anyone request public records from ALCOSAN. Learn how to submit a Right-to-Know request.

Quick reference for color and typography.

The core palette and typefaces used across ALCOSAN tunnel program communications.

For questions about logo use, clear-space, or voice and tone, contact the Public Information Office.

Color palette

Primary brand colors used across all ALCOSAN tunnel program communications.

Typography

Inter is the primary typeface across all digital and print applications.

Display heading
Inter · 800 · Tracking -0.03em
Section heading
Inter · 700 · Tracking -0.02em
Body text — the regional tunnel system is part of the Clean Water Plan.
Inter · 400 · 1.6 line height
Caption / meta text
Inter · 500 · 0.88rem

How to use these materials responsibly.

All assets in the Media Center are available for editorial, educational, and government use.

You’re welcome to

  • Use photos and videos for editorial coverage — reporting, news articles, and public-interest journalism, with credit to ALCOSAN.
  • Share fact sheets and program documents — helpful for community partners, educators, and elected officials.
  • Embed approved videos — embed-friendly versions are available; contact our media team.

Please don’t

  • Modify or recolor official logos — the ALCOSAN mark must be used in approved formats.
  • Use materials for endorsement — may not imply endorsement of products, candidates, or unrelated initiatives.
  • Resell or redistribute the photo library — imagery is for editorial and educational use, not for resale.

Official ALCOSAN channels.

Project milestones, closure notices, event reminders, and behind-the-scenes construction updates — follow along, or link these verified profiles in your coverage.