Hudson Square in Manhattan in New York County, New York — The American Northeast (Mid-Atlantic)

The Holland Tunnel

The Engineers Plaque

Hoboken Historical Museum, 2010

1. The Holland Tunnel Engineers Plaque

Inscription.

The Holland Tunnel. The Engineers Plaque. , Constructed Under the Joint Supervision , Of New York State Bridge and Tunnel , Commission and New Jersey Interstate , Bridge and Tunnel Commission , Ground Broken October 12, 1920 , Tunnel Opened November 12, 1927 , Tunnel Completed 1929, Chief Engineers , Clifford M. Holland , 1919-1924, Deceased October 27, 1924 , Milton H. Freeman , 1924-1925, Deceased March 24, 1925 , Ole Singstad , 1925-1929, Board of Consulting Engineers and Consultants , William J. Wilgus - Henry W. Hodge - George L. Lucas , John A. Bensel - George L. Watson - Frederick C. Noble , William H. Burr - George H. Brown - Lewis B. Stillwell , Edward A. Byrne - Harvey Wiley Corbett - Arthur C. Willard , J. Vipond Davies - Sullivan W. Jones - Frank M. Williams , Edward Levy, M.D. , Principal Engineering Assistants , Ralph Smillie - Frederick A. Snyder - Charles S. Gleim - Miles I. Killmer , Jesse B. Snow - Arthur C. Davies - Erling Owre - John N. Dodd, Principal Contractors , Booth and Flinn, Ltd. - B.F. Sturtevant Co. , De Riso Construction Co. - The Carleton Co., Inc. , Rogers and Hagerty, Inc. - William J. Fitzgerald , Fischbach and Moore, Inc. - General Electric Co. , L. Del Turco and Bros., Inc. - John Meehan and Son , Leonard Paving Co., Inc. - Standard Underground Cable Co. , Holbrook, Cabot and Rollins Corp. - George Siegler Co., Tunnel Data , North Tunnel South Tunnel - Westbound Traffic Eastbound Traffic , Length of Tunnel 9250 Feet - Length of Tunnel 9277 Feet Distance Between Portals 8957 Feet - Distance Between Portals 8971 feet Length of Under River Portion 5480 Feet , Distance between River Shafts 3374 Feet , Minimum Width of Roadways 20 feet - Headroom 13 Feet 6 Inches , External Diameter of Tunnel 29 Feet 6 Inches and 30 Feet 4 Inches , Maximum of Grade 3.54 Per Cent - Maximum Down Grade 4.06 Per Cent , Maximum Depth From Mean High Water to Top of Tunnel 72 Feet , Cast Iron and Steel Tunnel Lining 114,000 Tons , Tunnel Ventilated by 84 Fans in Four Ventilation Buildings , Normal Maximum Ventilation 3,750,000 Cubic Feet of Fresh Air Per Minute, MCMXXIX

Constructed Under the Joint Supervision
Of New York State Bridge and Tunnel
Commission and New Jersey Interstate
Bridge and Tunnel Commission
Ground Broken October 12, 1920
Tunnel Opened November 12, 1927
Tunnel Completed 1929

Chief Engineers
Clifford M. Holland
1919-1924, Deceased October 27, 1924
Milton H. Freeman
1924-1925, Deceased March 24, 1925
Ole Singstad
1925-1929

Board of Consulting Engineers and Consultants
William J. Wilgus - Henry W. Hodge - George L. Lucas
John A. Bensel - George L. Watson - Frederick C. Noble
William H. Burr - George H. Brown - Lewis B. Stillwell
Edward A. Byrne - Harvey Wiley Corbett - Arthur C. Willard
J. Vipond Davies - Sullivan W. Jones - Frank M. Williams
Edward Levy, M.D.

Principal Engineering Assistants
Ralph Smillie - Frederick A. Snyder - Charles S. Gleim - Miles I. Killmer
Jesse B. Snow - Arthur C. Davies - Erling Owre - John N. Dodd

Principal Contractors
Booth & Flinn, Ltd. - B.F. Sturtevant Co.
De Riso Construction Co. - The Carleton Co., Inc.
Rogers & Hagerty, Inc. - William J. Fitzgerald
Fischbach & Moore, Inc. - General Electric Co.
L. Del Turco & Bros., Inc. - John Meehan & Son
Leonard Paving Co., Inc. - Standard Underground

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Cable Co.
Holbrook, Cabot & Rollins Corp. - George Siegler Co.

Tunnel Data
North Tunnel South Tunnel - Westbound Traffic Eastbound Traffic
Length of Tunnel 9250 Feet - Length of Tunnel 9277 Feet Distance Between Portals 8957 Feet - Distance Between Portals 8971 feet Length of Under River Portion 5480 Feet
Distance between River Shafts 3374 Feet
Minimum Width of Roadways 20 feet - Headroom 13 Feet 6 Inches
External Diameter of Tunnel 29 Feet 6 Inches and 30 Feet 4 Inches
Maximum of Grade 3.54 Per Cent - Maximum Down Grade 4.06 Per Cent
Maximum Depth From Mean High Water to Top of Tunnel 72 Feet
Cast Iron and Steel Tunnel Lining 114,000 Tons
Tunnel Ventilated by 84 Fans in Four Ventilation Buildings
Normal Maximum Ventilation 3,750,000 Cubic Feet of Fresh Air Per Minute

MCMXXIX

Erected 1929.

Topics. This historical marker is listed in this topic list: Roads & Vehicles. A significant historical date for this entry is November 12, 1927.

Location. 40° 43.476′ N, 74° 0.415′ W. Marker is in Manhattan, New York, in New York County. It is in Hudson Square. Marker can be reached from Holland Tunnel Entrance north of Broome Street, on the right when traveling north. The plaque is on the right wall, just inside the tunnel entrance. Due to traffic flow and

The Holland Tunnel - Manhattan entry image. Click for full size.

Photographed By Npr, October 29, 2012

2. The Holland Tunnel - Manhattan entry

The plaque is visible on the right of the entrance.

security, this marker can only be viewed from afar or in passing. Touch for map. Marker is in this post office area: New York NY 10013, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within walking distance of this marker. A different marker also named The Holland Tunnel (a few steps from this marker); a different marker also named Holland Tunnel (within shouting distance of this marker); 9/11 Memorials (within shouting distance of this marker); House of Leonard Lispenard (about 600 feet away, measured in a direct line); General José Artigas (about 700 feet away); C.F. Martin & Co. Guitars (about 700 feet away); 508 Canal Street (about 800 feet away); Spring Street Park (about 800 feet away). Touch for a list and map of all markers in Manhattan.

Also see . . . Holland Tunnel. Wikipedia entry. (Submitted on May 7, 2020, by Larry Gertner of New York, New York.)

Clifford Milburn Holland (1883-1924) image. Click for full size.

Photographed By Wikipedia

3. Clifford Milburn Holland (1883-1924)

First Chief Engineer of the Hudson River Vehicular Tunnel (renamed after his death)

Credits. This page was last revised on November 12, 2023. It was originally submitted on May 7, 2020, by Larry Gertner of New York, New York. This page has been viewed 311 times since then and 23 times this year. Last updated on October 18, 2023, by Carl Gordon Moore Jr. of North East, Maryland. Photos: 1, 2, 3. submitted on May 7, 2020, by Larry Gertner of New York, New York. • Michael Herrick was the editor who published this page.