U. S. COAST GUARD AUXILIARY EIGHT EASTERN REGION AID VERIFIER TRAINING

1
U. S. COAST GUARD AUXILIARYEIGHT EASTERN
REGIONAID VERIFIER TRAINING

• MODULE 4

2
U. S. COAST GUARD AUXILIARYEIGHT EASTERN
REGIONAID VERIFIER TRAINING

• BRIDGE DISCREPANCY REPORTING
• 02APR03

1
3
INDEX TO TOPICS

• INDEX TO TOPICS
• INTRODUCTION AND BACKGROUND
• GENERAL BRIDGE LIGHTING REQUIREMENTS
• FIXED BRIDGE LIGHTING
• LIGHTING FOR VERTICAL LIFT BRIDGES
• LIGHTING FOR SWING SPAN BRIDGES
• LIGHTING FOR BASCULE BRIDGES
• BRIDGE LATITUDE / LONGITUDE POSITION DATA USING
  GPS / DGPS
• SUMMARY NOTES -- REPORTING BRIDGE DISCREPANCIES

2
4
(No Transcript)
5
BRIDGE LIGHTING REQUIREMENTS

• ANYONE CAN AND SHOULD REPORT DISCREPANCIES
• BRIDGE LIGHTING IS REQUIRED
• AS PRESCRIBED BY THE COAST GUARD DISTRICT
  COMMANDER FOR BRIDGES IN NAVIGABLE WATERWAYS
• FROM SUNSET TO SUNRISE
• IN PERIOD OF REDUCED VISIBILITY (LESS THAN ONE
  MILE)
• TO BE VISIBLE FOR ONE MILE

4
6
FIXED BRIDGE LIGHTING
5

• THE CENTER OF THE MAIN CHANNEL AND ALTERNATE
  CHANNELS (IF ANY) ARE MARKED USING 360 DEGREE
  FIXED GREEN LIGHTS WHICH FORM A RANGE IN THE
  CENTER OF THE SPAN. THESE ARE CALLED
• "MAIN CHANNEL CENTER LIGHTS" OR
• "ALTERNATE CHANNEL CENTER LIGHTS
• ( A on the diagram)

7
FIXED BRIDGE LIGHTING
6

• IF THERE IS AN ALTERNATE CHANNEL, THEN THE MAIN
  CHANNEL IS MARKED BY THREE VERTICAL 180 DEGREE
  FIXED WHITE LIGHTS LOCATED ABOVE THE GREEN MAIN
  CHANNEL CENTER LIGHT. THESE ARE CALLED
• "MAIN CHANNEL LIGHTS"

8
FIXED BRIDGE LIGHTING

• Note
• Bridges display lights that are specifically
  defined by Coast Guard permit.
• The lighting configurations may vary from the
  general descriptions in this presentation.
• Example A Saint Louis bridge displays Main
  Channel Lights with flashing green
  characteristics (versus fixed white
  characteristics).

7
9
FIXED BRIDGE LIGHTING
8

• BRIDGE PIERS ON THE LEFT DESCENDING (LD) AND
  RIGHT DESCENDING (RD) SIDES OF A NAVIGABLE
  CHANNEL SHOW 180 DEGREE FIXED RED LIGHTS ON BOTH
  THE DOWNSTREAM (D/S) AND UPSTREAM (U/S) ENDS OF
  THE PIER. THIS LIGHT IS CALLED A
• "PIER LIGHT
• ( B on the diagram)

10
FIXED BRIDGE LIGHTING
9

• WHERE THE NAVIGABLE CHANNEL (MAIN CHANNEL OR
  ALTERNATE CHANNEL) IS LOCATED BETWEEN BRIDGE
  PIERS BUT DOES NOT EXTEND ALL THE WAY TO A BRIDGE
  PIER, THEN THE EXTENT OF THE CHANNEL IS MARKED BY
  180 DEGREE FIXED RED LIGHTS LOCATED ON THE BRIDGE
  SPAN ON BOTH THE DOWNSTREAM (D/S) AND UPSTREAM
  (U/S) SIDES OF THE SPAN. THIS LIGHT IS CALLED A
• "CHANNEL MARGIN LIGHT (C on diagram)

11
TYPICAL FIXED BRIDGE LIGHTING
10
12

• BRIDGE LIGHTING TYPES
  
  
• "A" -- MAIN OR ALTERNATE CHANNEL CENTER LIGHT
  (360 DEGREES GREEN)
• "B" -- PIER LIGHT (180 DEGREES RED)
• "C" -- CHANNEL MARGIN LIGHT (180 DEGREES RED)
• "D" -- MAIN CHANNEL LIGHTS (THREE VERTICAL
  LIGHTS, 180 DEGREES WHITE)
• LOCATION MUST BE SPECIFIED
• "LD" (LEFT DESCENDING) OR "RD" (RIGHT DESCENDING)
  FOR MARGIN AND PIER LIGHTS
• "U/S" (AS VIEWED FROM UPSTREAM) OR "D/S" (AS
  VIEWED FROM DOWNSTREAM)
• "MAIN" OR "ALTERNATE" CHANNEL

11
13
EXAMPLE VIEWED FROM UPSTREAM

• BRIDGES MAY ALSO EXHIBIT AIRCRAFT CLEARANCE
  LIGHTS REQUIRED BY THE FAA.
• DISCREPANCIES SHOULD BE REPORTED TO THE NEAREST
  FAA FACILITY, NOT ON THE CG BRIDGE REPORT

12
14
HOW WOULD EACH LIGHT BE DESIGNATED WHEN VIEWING
FROM DOWNSTREAM?
13
15
FIXED BRIDGES MAIN AND ALETRNATE
CHANNELS(EXAMPLE AS VIEWED FROM UPSTREAM)
14
BRIDGES MAY ALSO EXHIBIT AIRCRAFT CLEARANCE
LIGHTS REQUIRED BY THE FAA. DISCREPANCIES SHOULD
BE REPORTED TO THE NEAREST FAA FACILITY, NOT ON
THE CG BRIDGE REPORT
16
HOW WOULD EACH LIGHT BE DESIGNATED WHEN VIEWING
FROM DOWNSTREAM?
15
17
A VERTICAL LIFT BRIDGE
16
18
LIGHTING FOR VERTICAL LIFT BRIDGES
WHEN THE BRIDGE IS IN ANY POSITION OTHER
THAN FULLY RAISED, THE CENTER OF THE LIFT BRIDGE
SPAN IS MARKED BY TWO 180 DEGREE FIXED RED
LIGHTS -- ONE FACING UPSTREAM AND THE OTHER
DOWNSTREAM.

• WHEN FULLY RAISED, THE CENTER OF THE SPAN SHOWS
  TWO 360 DEGREE FIXED GREEN LIGHTS. EACH OF THESE
  RED AND GREEN LIGHTS IS CALLED A
• "RED LIFT SPAN LIGHT" or "GREEN LIFT SPAN LIGHT"
  (identified on the graphic below as "A")

17
19
LIGHTING FOR VERTICAL LIFT BRIDGES
18

• EACH LIFT PIER, OR AN ATTACHED PROTECTION PIER,
  IS MARKED BY A 180 DEGREE FIXED RED LIGHT ON BOTH
  THE DOWNSTREAM (D/S) AND UPSTREAM (U/S) ENDS OF
  THE PIER. THIS LIGHT IS CALLED A
• "LIFT PIER LIGHT" or "PIER LIGHT" (identified on
  the graphic below as "B")

20
LIGHTING FOR VERTICAL LIFT BRIDGES
19

• A THIRD PIER LIGHT, IN ADDITION TO THE TWO (U/S
  AND D/S) PIER LIGHTS, MAY BE REQUIRED IF THE LIFT
  AND PROTECTION PIERS ARE NOT STRAIGHT ON THEIR
  CHANNEL FACES. THIS LIGHT IS A 180 DEGREE FIXED
  RED LIGHT MOUNTED IN THE MIDDLE OF THE BRIDGE
  PIER IN LINE WITH THE BRIDGE AXIS. THIS LIGHT IS
  CALLED AN
• "AXIS LIGHT" (identified on the graphic below
  as "C")

21
MINIMUM LIGHTING VERTICAL LIFT BRIDGE
20
(EXAMPLE AS VIEWED FROM UPSTREAM)
NOTE SOME LIFT BRIDGES, ESPECIALLY THOSE IN
AUTOMATIC OR SEMIAUTOMATIC OPERATION, MAY SHOW
ADDITIONAL LIGHTS IN BOTH THE U/S DIRECTION AND
THE D/S DIRECTION. THESE ARE AUTHORIZED ON A
CASE BY CASE BASIS. IN SOME CASES, COAST GUARD
LIGHT LISTS AND NEWER CORPS OF ENGINEER CHARTS
INCLUDE DESCRIPTIONS AND USAGE OF SPECIAL BRIDGE
LIGHTING.
22
A SINGLE-LEAF BASCULE BRIDGE
21
23
A DOUBLE-LEAF BASCULE BRIDGE
22
24
LIGHTING FOR DOUBLE LEAF BASCULE BRIDGES
23

• EACH BASCULE BRIDGE PIER IS MARKED BY A 180
  DEGREE FIXED RED LIGHT ON BOTH THE DOWNSTREAM
  (D/S) AND UPSTREAM (U/S) ENDS OF THE PIER. THIS
  LIGHT IS CALLED A
• "DRAW PIER LIGHT" or "PIER LIGHT"
• WHEN A THE BRIDGE IS IN ANY POSITION OTHER THAN
  FULLY RAISED., THE CENTER OF THE BRIDGE SPAN IS
  MARKED BY TWO 180 DEGREE FIXED RED LIGHTS (ONE ON
  EACH LEAF SPAN) ON BOTH THE UPSTREAM SIDE AND ON
  THE DOWNSTREAM SIDE. WHEN FULLY RAISED, THESE
  LIGHTS SHOW 180 DEGREE FIXED GREEN LIGHTS. EACH
  OF THESE IS CALLED A
• "RED LEAF SPAN LIGHT" or "GREEN LEAF SPAN LIGHT"
• A THIRD PIER LIGHT, IN ADDITION TO THE TWO (U/S
  AND D/S) DRAW PIER LIGHTS, MAY BE REQUIRED IF THE
  DRAW PIERS AND ATTACHED PROTECTION PIERS ARE NOT
  STRAIGHT ON THEIR CHANNEL FACES. THIS LIGHT IS A
  180 DEGREE FIXED RED LIGHT MOUNTED IN THE MIDDLE
  OF THE APPLICABLE DRAW PIER IN LINE WITH THE
  BRIDGE AXIS. THIS LIGHT IS CALLED AN
• "AXIS LIGHT"

25
MINIMUM LIGHTING FOR DOUBLE-LEAF BASCULE BRIDGES
(EXAMPLE AS VIEWED FROM UPSTREAM)
24
26
A DOUBLE-OPENING SWING SPAN BRIDGE
25
27
SPAN LIGHTING FOR DOUBLE-OPENING SWING SPAN
BRIDGES

• THREE LIGHT FIXTURES, EACH CONSISTING OF TWO 60
  DEGREE RED LIGHTS AND TWO 60 DEGREE GREEN LIGHTS
  (SEE DIAGRAM BELOW SHOWING SPAN IN CLOSED
  POSITION), ARE LOCATED ATOP THE BRIDGE SPAN AT
  EITHER END AND AT THE CENTER POINT.
• EACH LENS IN A FIXTURE IS LOCATED AT 90 DEGREES
  FROM ITS ADJACENT LENS AND SHOWS THROUGH AN ARC
  OF 60 DEGREES. WHEN ONLY THE GREEN LENS ARE
  SHOWING DIRECTLY UPSTREAM AND DOWNSTREAM FROM
  THESE FIXTURES, THEN THE BRIDGE WOULD BE IN THE
  FULLY OPEN POSITION. THIS LIGHT FIXTURE IS
  CALLED A "SWING SPAN LIGHT"

26
26
28
SPAN LIGHTING FOR DOUBLE-OPENING SWING SPAN
BRIDGES (EXAMPLE AS VIEWED FROM UPSTREAM)
27

• NOTE IN ORDER TO PROPERLY IDENTIFY ANY GREEN
  SWING SPAN LIGHT DISCREPANCIES ON A CLOSED BRIDGE
  (OR RED SWING SPAN LIGHT DISCREPANCIES ON AN OPEN
  BRIDGE), IT WOULD BE NECESSARY TO VISUALLY
  DETERMINE WHICH DIRECTION THE BRIDGE OPENS (OR
  CLOSES). HOWEVER, NEVER REQUEST A BRIDGE TO OPEN
  (OR CLOSE) IF ONLY TO VERIFY BRIDGE LIGHTING.

29
SUMMARY NOTES -- REPORTING BRIDGE DISCREPANCIES

• FOR EXTINGUISHED LIGHTS, ALSO INDICATE
• IF THE LIGHT FIXTURE IS VISIBLE
• IF THERE IS A RED REFLECTIVE SQUARE OR DIAMOND
  LOCATED IN PROXIMITY TO THE LOCATION YOU WOULD
  EXPECT TO FIND A LIGHT

• ALL EXTINGUISHED LIGHTS AND ANY OTHER
  DISCREPANCY THAT WOULD BE CONSIDERED A HAZARD TO
  NAVIGATION SHOULD BE REPORTED IMMEDIATELY VIA
  MARINE RADIO TO THE APPROPRIATE GROUP.

28