Many years ago, the old "Lead" cabin at Reynold's Channel was in control of the swing bridge.
The operator at "M" cabin probably only operated the bridge on the Montauk cutoff. I would think that Dutch Kills "drawbridge" (actually swingbridge) had its own operator as there was a cabin there as well.
Here's some data:
“BC” CABIN
BROAD CHANNEL ON ROCKAWAY BEACH BRANCH (BRIDGE TENDER’S CABIN ON W. SIDE OF TRACKS AND S. OF STATION. LOCATED ON SWING BRIDGE. IN USE ON 1917 MAP. CLOSED: 19 ? WHEN BROAD CHANNEL SWINGBRIDGE WAS CONTROLLED FROM “HJ” TOWER, LATER
“DRAW.”)
“BROAD CHANNEL DRAWBRIDGE”
SWING BRIDGE ON S. SIDE OF CHANNEL. (ORIGINALLY CONTROLLED BY “BC” CABIN. LATER CONTROLLED BY TOWER #101, WHICH BECAME “HJ” AND “DRAW.” INTERLOCKING AND INTERLOCKING STATION OUT OF SVC: 5/23/50 WITH ABANDONMENT OF JAMAICA BAY TRESTLE AFTER FIRE OF 1950.)
“D” CABIN: 1
DOUGLASTON DRAWBRIDGE (SWINGBRIDGE) (S. SIDE OF TRACKS BUILT ON RECLAIMED W. EDGE OF ALLEY CREEK. IN SERVICE: 9/1911 – 1924)
“D” CABIN: 2
DOUGLASTON DRAWBRIDGE )SWINGBRIDGE) (N. SIDE OF TRACKS, ON E. SIDE OF ALLEY CREEK. IN SERVICE: 1924-1926. AFTER 1926 BECAME
BRIDGE TENDER’S CABIN. RENAMED “DOUGLASTON DRAWBRIDGE.”
“DB” CABIN:1
DUTCH KILLS DRAWBRIDGE – L. I. CITY (FORMERLY TOWER #2. RENAMED IN 1907. OUT OF SERVICE:10/1915)
“DB” CABIN:2
DUTCH KILLS DRAW BRIDGE - L.I. CITY (OPENED: 10/1915 ON N. SIDE OF TRACKS AND E. OF DRAWBRIDGE)
“DOUGLASTON DRAWBRIDGE”
DOUGLASTON (FORMERLY “D” CABIN. INTERLOCKING AND INTERLOCKING STATION OUT OF SVC: 7/6/48. CABIN RAZED: 1950.)
“DRAW” TOWER
SWING BRIDGE - HAMMEL (PREVIOUSLY “HJ” TOWER) (WEST SIDE OF TRACKS AND SOUTH [RAILROAD EAST] OF CHANNEL. DESTROYED BY TRAIN DERAILMENT 1946)
“DRAW” CABIN
SWING BRIDGE - HAMMEL (BUILT 1946, EAST SIDE OF TRACKS AND SOUTH [RAILROAD EAST] OF CHANNEL. OUT OF SVC: 10/3/55)
“DRAW” TOWER
HAMMEL (ELEVATED BLDG. AT NEW LOCATION) (BUILT 1950)
“EC” TOWER
GOOSE CREEK ON ROCKAWAY BEACH BR. (W. SIDE OF TRACKS AND 700’ SOUTH OF STATION, LOCATED ON JAMAICA BAY TRESTLE. FORMERLY TOWER #95. OUT OF SERVICE: 19 ? )
“ER” TOWER
THE RAUNT ON ROCKAWAY BEACH BR. (1300’ SOUTH OF STATION, ON JAMAICA BAY TRESTLE)
“HB” INTERLOCKING (R.C.)
HOWARD BEACH (GONE BY 1941)
“HJ” TOWER
HAMMEL (BROAD CHANNEL) SWING BRIDGE (HAMMEL JCT.) (WEST SIDE OF TRACKS AND SOUTH OF CHANNEL. FORMERLY TOWER #101. RENAMED IN 1907. RENAMED “DRAW”: 5/1/37.)
“LEAD” CABIN
REYNOLD’S CHANNEL SWING BRIDGE ON LONG BEACH BRANCH (PREVIOUSLY “WL” [WRECK LEAD] CABIN. DEMOLISHED: 1980s)
“LEAD” TOWER
DRAWBRIDGE – LONG BEACH (BUILT 1980s AT REYNOLD’S CHANNEL)
“M” CABIN
FREIGHT DRAWBRIDGE OVER DUTCH KILLS CREEK, L. I. CITY - MONTAUK CUT-OFF, BLISS – YARD A SECONDARY TRACKS (BUILT 1908-09 ON S. SIDE OF TRACKS AND EAST END OF BRIDGE)
“WD” TOWER
“WEST END TRESTLE” (HAMILTON BEACH) (E. SIDE OF TRACKS AND S. OF STATION. FORMERLY TOWER #93. RENAMED IN 1907. RENAMED “BEACH”: 5/1/37.)
“WL” TOWER
REYNOLDS CHANNEL ON LONG BEACH BRANCH. (WRECK LEAD: W. SIDE OF TRACKS AND N. OF CHANNEL. IN SERVICE: 1/15/27 – 7/8/31)
“WL” CABIN: 2
REYNOLD’S CHANNEL SWING BRIDGE – LONG BEACH (24’ EAST OF 1ST “WL” CABIN. IN SVC: 1934. RENAMED “LEAD”: 5/1/37.)
“WRECK LEAD” CABIN
SWING BRIDGE – LONG BEACH (PREVIOUSLY “WL”, LATER “LEAD” CABINS) (WEST SIDE OF TRACKS AT REYNOLD’S CHANNEL, FORMERLY WRECK LEAD CHANNEL.)
“WU” TOWER
THE RAUNT ON ROCKAWAY BEACH BR. (W. SIDE OF TRACKS AND 1300’ NORTH OF STATION, ON JAMAICA BAY TRESTLE. FORMERLY TOWER #96. IN SVC: BY 1906. RENAMED “WU” IN 1907. OUT OF SVC: 19 ? )
Dave Keller