Wikimedi'Òc

Midway Interlocking, South Brunswick, NJ.jpg - JosephBarillari~commonswiki

Harold Honeywell jeh.JPG - Jim.henderson

Harold Skillman jeh.JPG - Jim.henderson

Holmesburg Junction Station.JPG - File Upload Bot (Magnus Manske)

Tower 144 Amtrak jeh.jpg - Jim.henderson

Saga Interlocking Tower. Greens Farms, Fairfield Co., CT. Sec. 9108, MP 47.00. - Northeast Railroad Corridor, Amtrak Route between New York-Connecticut and Connecticut-Rhode HAER CONN,5-NEWHA,37-37.tif - Fæ

Saga Interlocking Tower. Greens Farms, Fairfield Co., CT. Sec. 9108, MP 47.00. - Northeast Railroad Corridor, Amtrak Route between New York-Connecticut and Connecticut-Rhode HAER CONN,5-NEWHA,37-38.tif - Fæ

VIEW EAST TOWARD STAMFORD ANCHOR BRIDGE -374 OF CIRCUIT BREAKER INSTALLATION ON CROSS BEAM OF BRIDGE. - New York, New Haven and Hartford Railroad, Bridge-Type Circuit Breakers, HAER CONN,1-COSCOB,2C-3.tif - Fæ

Gwynns Falls Bridge. Baltimore, Baltimore City, MD. Sec. 1201, MP 99.20. - Northeast Railroad Corridor, Amtrak route between District of Columbia-Maryland state line and Maryland HAER MD,4-BALT,147-14.tif - Fæ

Gwynns Falls Bridge. Baltimore, Baltimore City, MD. Sec. 1201, MP 99.20. - Northeast Railroad Corridor, Amtrak route between District of Columbia-Maryland state line and Maryland HAER MD,4-BALT,147-13.tif - Fæ

Edgewood Interlocking Tower. Edgewood, Hareford Co., MD. Sec. 1201, MP 75.50. - Northeast Railroad Corridor, Amtrak route between District of Columbia-Maryland state line and HAER MD,4-BALT,147-39.tif - Fæ

Zoo Substation. Philadelphia, Philadelphia Co., PA. Sec. 1101, MP 87.25. - Northeast Railroad Corridor, Amtrak route between Delaware-Pennsylvania and Pennsylvania-New Jersey HAER PA,51-PHILA,694-20.tif - Fæ

Boston switch interlocking tower. Central Falls, Providence Co., RI. Sec. 4116, mp 190.40. - Northeast Railroad Corridor, Amtrak route between CT and MA state lines, Providence, HAER RI,4-PROV,174-34.tif - Fæ

Clarendon Hills station postcard.jpg - Pi.1415926535

Midway Station - Monmouth Junction - South Brunswick Township - NJ - IMG 2309.jpg - Bjoertvedt

Former interlocking tower in Pawtucket, September 2018.JPG - Pi.1415926535

Boston Switch and interlocking tower, September 2018.JPG - Pi.1415926535

Aerial view of Readville interlocking tower, April 1977.jpg - Pi.1415926535