Portsmouth, NH: B&M Roundhouse and Naval Shipyard (Actually, Kittery, NH)

Roundhouse: (Satellite, it is in the trees. See Tim's comment below for a "clean" image.)

Shipyard (PNSY): (Satellite)

Ted Houghton posted
B&M #1126, Portsmouth, NH, 11 Jul 1967.
Rolando Maggi shared

Tim Berry commented on Ted's post
December 2003, last Google Earth image without vegetation.

1952 Portsmouth Quad @ 24,000

William Ricketson posted two photos with the comment: "On a less than happy note, the roundhouse and turntable in Portsmouth, N.H. are all but gone, final demolition is expected this year after decades of neglect and vandalism."

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Shipyard

I remember this naval yard because it is the reason the new Sarah Mildred Long Bridge needed to support the railroad as well as a road.

 

navsea

Portsmouth Naval Shipyard posted two photos with the comment:

A temporary lifting device was transported on a specialty barge from Cianbro Corporation's Modular Manufacturing Facility in Brewer, Maine and has arrived at Portsmouth Naval Shipyard (PNSY).

The steel structure is 110 feet tall and 111 feet wide and has a lifting capacity of 4000 metric tons. Its bright red finish made it quite visible as it travelled down the Penobscot River to the Atlantic, then along the Maine coast to the mouth of the Piscataqua River. The device is temporarily stationed at Henderson's Point on the west side of Seavey Island.

The temporary lifting device is at the shipyard to support the Multi-Mission Dry Dock #1 MILCON--a seven-year project already in progress. The work on the project is being completed by the 381 Constructors in a joint venture of The Industrial Company (a Kiewit Corporation subsidiary), Maine-based Cianbro Corporation, and The Middlesex Corporation.

Over the coming weeks, the device will be assembled and erected in Dry Dock #1, a process set to conclude in early May. Once operational, it will undertake the vital task of lifting twenty-seven 4,000-ton concrete monoliths currently being constructed by Cianbro Corporation at their Brewer facility.

The project will modernize the historic dry dock, originally constructed during WWII. By increasing its capacity, the shipyard will be able to accommodate three Los Angeles or Virginia-class attack submarines for repair, maintenance, and modernization, enabling PNSY to meet the Navy's requirements for years to come.

The dry dock project is overseen by the Officer in Charge of Construction PNSY, and the work is being completed as part of the Shipyard Infrastructure Optimization Program (SIOP). SIOP is a holistic recapitalization of the Navy's four public shipyards through a combination of new and reused facilities. It integrates facilities, utilities, and industrial plant equipment investments to meet nuclear fleet maintenance requirements. The Program delivers a reduction in availability duration and improves efficiency by expanding shipyard capacity, optimizing configuration, and creating resilient infrastructure.

SIOP's multi-decade effort currently has over $6 billion of construction under contract and $577 million of equipment in procurement, marking a significant investment in the Navy's infrastructure.

For more information about the Shipyard Infrastructure Optimization Program, please visit: 

https://www.navfac.navy.mil/PEO-Industrial-Infrastructure/PMO-555-SIOP/ [I didn't read it because it had a photo of two guys rather than of something interesting like a crane or a ship in a drydock.]

K.L. Wilkes: Isn't PNSY the Phila. Naval Ship Yard? (or since that was closed the acronym has been taken over?)

Heather Wass: Interesting but Portsmouth Naval Shipyard is PNS. PNSY was Philadelphia Naval Shipyard. Even the Periscope lately has been correct in using the correct PNS.

[And to add to the confusion, the Navy also has a shipyard in Portsmouth, VA. But it is called the Norfolk Naval Shipyard (NNSY). I always wondered why it was called Norfolk since that city is on the other side of the river.]

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Seth Hockaday commented on the above post
Lol! I was wondering what it was when I saw it from Fort McClary this morning!

Deborah Walsh commented on the above post
We saw it up close Monday [Apr 1, 2024] as we were paddling off Wood Island.

U.S.Navy posted three photos with the comment: "USS Texas (SSN 775) undocks from drydock at Portsmouth Naval Shipyard Kittery, Maine. Texas is at the shipyard undergoing a scheduled maintenance period."

Portsmouth Naval Shipyard shared

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Bobby Weinhardt posted three photos with the comment: "The Naval Foundry & Propeller Center."

Ed McMurray: I worked on a small foundry before, and never that clean. Although, the induction melting side was. Are they using induction furnaces to melt those naval alloys? Really cool. That foundry engineer job is no easy task.

Bobby Weinhardt: Ed McMurray we have 1 reverb furnace and a few induction furnaces.

[Several other comments observed how clean this foundry was.]

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