SILENT GROUNDS COLLECTIVE · NONPROFIT EDUCATIONAL ARCHIVE
SGC-ED086 · Research edition September 12, 2026
A collection of documented history, dated images and original record links. Photographs available only at their publishers are labeled separately from locally included images. Unknown dates and conflicting accounts remain visible.
Aerial view of the railway entering East Haven Tunnel. Jack E. Boucher documented East Haven Tunnel in 1977 for a federal survey of the Northeast Railroad Corridor.
Image credit and source
Roadway portals of Heroes Tunnel with vehicles. A 2007 photograph shows the Route 15 tunnel through West Rock, opened in 1949.
Image credit and sourceThis collection distinguishes several structures rather than presenting a single underground network. East Haven’s railroad tunnel, the West Rock road tunnel, the former canal-railroad corridor and a hospital service connection had different purposes and locations. A photograph or construction date belongs to the structure identified by its source. East Haven is not West Haven, and a shared regional name does not connect unrelated tunnels. [ED086-S01] [ED086-S02] [ED086-S05] [ED086-S06]
Amtrak’s 2020–2024 infrastructure plan describes East Haven Tunnel as a two-track brick-lined structure, 1,179 feet long, built in 1893. Jack E. Boucher’s 1977 HAER photograph supplies a dated exterior record. The survey uses milepost 77.00 while Amtrak’s inventory uses 76.64; those identifiers remain attributed to their respective records. The plan’s date is used for the documented asset without claiming to resolve every earlier tunnel history at the site. [ED086-S01] [ED086-S02]
The road tunnel through West Rock opened in 1949 with two tubes of approximately 1,200 feet. It is now Heroes Tunnel. The naming evidence needs care: the 2003 act designated “Hero’s Tunnel,” and the 2004 act corrected the spelling to “Heroes Tunnel.” A current CTDOT page instead gives 2001; the archive uses the legislative sequence and retains that discrepancy. Andrew Ciscel’s photograph records the structure in 2007, not at its 1949 opening. [ED086-S03] [ED086-S04]
New Haven’s 2004 greenway plan describes the former railroad alignment beneath Orange and Grove, an open cut toward Whitney Avenue and an approximately 200-foot tunnel between Whitney and Temple under later housing. Those descriptions document transport infrastructure at that planning date. Later city project information describes subsequent trail work, so the 2004 condition is not presented as current access guidance. [ED086-S05]
The 1899 hospital report separately identifies an underground connection between Bronson Ward and the maternity ward. It is evidence of a particular institutional service link, not of a secret citywide system. Plans, captioned photographs and official inventories make these histories teachable because they attach claims to identifiable structures. Stories that lack a location, date or documentary source remain unverified rather than being illustrated with an unrelated tunnel photograph. [ED086-S06]
Aerial view of the railway entering East Haven Tunnel. Jack E. Boucher documented East Haven Tunnel in 1977 for a federal survey of the Northeast Railroad Corridor.
Read the image and source notes: ED-H-HT27
Roadway portals of Heroes Tunnel with vehicles. A 2007 photograph shows the Route 15 tunnel through West Rock, opened in 1949.
Includes source text where acquired. Source websites require an internet connection. OCR may contain errors; verify names and dates against the scan.
9 catalog entries
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ED086-S01 · Sources & research leads · See individual source date
Printed p128: East Haven Tunnel dimensions, 1893 asset date and milepost.
Linked source. The collection provides an original historical summary; the complete record remains with its repository.
Credit: Amtrak Infrastructure Asset Line Plan, FY2020–2024. Cite SGC SGC-ED086, ED086-S01, source title, page and URL; accessed 2026-09-12.ED086-S02 · Sources & research leads · See individual source date
Jack E. Boucher, HAER CT-11; survey milepost 77.00.
Linked source. The collection provides an original historical summary; the complete record remains with its repository.
Credit: Library of Congress: East Haven Tunnel, 1977. Cite SGC SGC-ED086, ED086-S02, source title, page and URL; accessed 2026-09-12.ED086-S03 · Sources & research leads · See individual source date
1949 construction, approximate tube lengths; naming year differs from legislative record.
Linked source. The collection provides an original historical summary; the complete record remains with its repository.
Credit: CTDOT: Heroes Tunnel project. Cite SGC SGC-ED086, ED086-S03, source title, page and URL; accessed 2026-09-12.ED086-S04 · Sources & research leads · See individual source date
Section 2 amends 2003 Public Act 03-115 from Hero’s to Heroes Tunnel.
Linked source. The collection provides an original historical summary; the complete record remains with its repository.
Credit: Connecticut Public Act 04-143. Cite SGC SGC-ED086, ED086-S04, source title, page and URL; accessed 2026-09-12.ED086-S05 · Sources & research leads · See individual source date
Printed FCL p15: below-grade alignment and Whitney–Temple tunnel.
Linked source. The collection provides an original historical summary; the complete record remains with its repository.
Credit: New Haven Farmington Canal Greenway plan, 2004. Cite SGC SGC-ED086, ED086-S05, source title, page and URL; accessed 2026-09-12.ED086-S06 · Sources & research leads · See individual source date
Specific connection between Bronson and maternity wards; not evidence of a regional network.
Linked source. The collection provides an original historical summary; the complete record remains with its repository.
Credit: New Haven Hospital annual report, 1899. Cite SGC SGC-ED086, ED086-S06, source title, page and URL; accessed 2026-09-12.ED-H-HT27 · Photographs · 1977
Aerial view of the railway entering East Haven Tunnel. Jack E. Boucher documented East Haven Tunnel in 1977 for a federal survey of the Northeast Railroad Corridor.
Call number HAER CONN,5-NEWHA,37--89. East Haven is separate from West Haven. Catalog milepost differs from modern Amtrak inventory. Not a highway tunnel; visible HAER CT-11-89 identifier matches. Display copy optimized for the web with proportional resizing and compression. The linked repository identifies the original image. Reuse: no known restrictions on U.S. Government image; LOC advisory: government-created images have no known restrictions; copied images may be restricted. This photograph is credited to Boucher in the 1977 federal survey.
Original sourceReferenced photograph at publisher
Credit: Jack E. Boucher / Library of Congress, Prints and Photographs Division, HAER CT-11. Cite SGC SGC-ED086, ED-H-HT27, source title, page and URL; accessed 2026-09-12.ED-H-HT28 · Photographs · January 28, 2007
Roadway portals of Heroes Tunnel with vehicles. A 2007 photograph shows the Route 15 tunnel through West Rock, opened in 1949.
Naming chronology: 2003 act, spelling corrected 2004. Current CTDOT web page's 2001 date conflicts with primary legislative evidence. Attribute/share alike for adaptations. Highway tunnel; distinguish from nearby railway tunnel records. Display copy optimized for the web with proportional resizing and compression. The linked repository identifies the original image. Reuse: CC BY-SA 2.0; Commons Flickr license review passed July 5, 2007.
Original sourceImage licenseReferenced photograph at publisher
Credit: Andrew Ciscel / Wikimedia Commons; original Flickr photo. Cite SGC SGC-ED086, ED-H-HT28, source title, page and URL; accessed 2026-09-12.ED-H-HT29 · Sources & research leads · Includes 1977 photographs; caption compilation date unspecified
The caption sheet links East Haven Tunnel to numbered engineering photographs, showing how an archive preserves provenance.
Available at the linked repository; image or full record is not included in this download. Eight-page PDF lists CT-11-89 tunnel and CT-11-90 ventilating shaft. Separate shaft-photo page/direct image not verified. Select document page only after visual inspection. Reuse: government survey documentation; copied-material exception; HAER advisory: no known restrictions on government-created images; copied material may be restricted.
Credit: Historic American Engineering Record / Library of Congress. Cite SGC SGC-ED086, ED-H-HT29, source title, page and URL; accessed 2026-09-12.
