How to safety check / survey a Bridge Bridge! A presentation by members of the: UNITED STATES COAST GUARD AUXILIARY First Northern, Aid To Navigation.

How toHow tosafety checksafety check

/ survey/ surveya Bridgea Bridge!

A presentation by members of the:

UNITED STATES COAST GUARD AUXILIARY

First Northern,

Aid To Navigation Team

“We verify the ATONs and PATONs, check

the Bridges, and update the charts of First

Northern.”

What does it take to be a What does it take to be a good Bridge Checker:good Bridge Checker:

Detail oriented. A prompt reporter. You take a lot of pride in your work and in report preparation.

You have a sharp eye for potential problems. Are a good observer and a quick learner of bridge safety laws and requirements.

You are not afraid of taking measurements and/or making reasonable estimates.

You are familiar with the operation of a GPS. You are able to take accurate soundings and are

proficient with a digital camera. You always do a complete and thorough job. You don’t have a lot of time to volunteer.

Bridge Checking can be Bridge Checking can be performed. . .performed. . .

All year long – 24 / 7.Without the use of a boat.Driving back and forth to work.On a bicycle ride.While walking or jogging.Day and night.

Tools that you will need:Tools that you will need:

Clipboard and pencil or pen. GPS with DGPS or WAAS. Lead line or other depth taking tool. Tape measure. Digital camera. Binoculars. Good road map of the area. Current Nautical chart and Coast Pilot.

COAST GUARD BRIDGE ADMINISTRATION OFFICES

ALAMEDA, CALIFORNIA

BOSTON, MASSACHUSETTS

CLEVELAND, OHIO

HONOLULU, HAWAII

JUNEAU, ALASKA

MIAMI, FLORIDA

NEW ORLEANS, LOUISIANA

NEW YORK, NEW YORK

PORTSMOUTH, VIRGINIA

SAINT LOUIS, MISSOURI

SEATTLE, WASHINGTON

Scope of the 2005 Bridge JobScope of the 2005 Bridge Job Bridge Classes NOT

AOR DIV 1 2 3 4 CHKD TOT

Boston (3) 0 3 8 6 7 24

(4) 0 3 4 8 4 19(5) 3 11 27 23 1 65(9) 0 0 8 1 12 21(12) 1 0 10 9 0 20

4 17 57 47 24 149

Portland (2) 3 5 17 43 69 137 SWH (1) 0 0 0 0 74 74

3 5 17 43 143 205

Scope of the 2005 Bridge JobScope of the 2005 Bridge Job

Bridge Classes NOT

AOR DIV 1 2 3 4 CHKD TOT

WOODS (6) 3 2 11 66 6 88

HOLE (11) 0 0 14 119 3 136

3 2 25 185 9 224

BRISTOL (7) 0 0 0 0 30 30

(8) 3 1 2 32 39 77

3 1 2 32 69 107

Summary of the 2005 Bridge JobSummary of the 2005 Bridge Job NOT YET ANNUAL 2005

AOR CHECKED CHECK TOTAL

Woods Hole 9 30 39

Bristol 69 6 75

Boston 24 78 102

Portland 23 69 92

SWH 74 0 74

TOTALS 199 183 382

Only reference you will need:Only reference you will need:“D1 BRIDGE SAFETY CHECK / SURVEY REPORT “

This is a pre-printed computer-generated reference document that contains the bridge specifications, LNM reports, Federal Regulations concerning the bridge from the Coast Pilot , any unrepaired discrepancies and all previously reported survey history plus a Light Survey Worksheet and a Fender System Worksheet.

You can print this form from the D1 (P)ATON Program CD on your home PC.

The “D1 (P)ATON BRIDGE DATABASE” is now on-line at:

www.uscgauxnh.org/aton/

Page 1

This report references:Bridge name.

Bridge location.

Bridge specifications.

LAT / LON

Horizontal Clearance

Vertical Clearance

Depths

LIGHT SURVEY Worksheet

FENDER SYSTEM SURVEY Worksheet

D1 Bridge Check/Survey Report Bridge No 310

Date of Observation: __________________ Time: ________

DIV 05 FLOT 03 CG Group Boston BRIDGE CLASS 1

Bridge Name P. J. McARDLE BRIDGE

Local Bridge Name Meridian Street Bridge

Waterway Chelsea River-01 Mile on Waterway 1.2

Location East Boston-Chelsea State MA

Navigable by: All boats - no restrictions Type Bascule

Use Hwy Hor CL (ft) 56 ft. Vert CL HW 15 ft. Vert CL LW 25 ft.

Latitude: 042-25-07.800N DOP / EPE Owner City of Boston

Longitude: 071-02-21.600W Date Comp. 7/1/37

Depth Downstream - FEET 35 Date and Time w hen depth Bridge Checked by: Healy

Depth Under Bridge - FEET 36 was taken: Date Last Checked 11/14/02

Depth Upstream - FEET 34 Last Photo sent: 9/20/03

LIGHT SURVEY Are lights Are lights of Are lights

Fill in the data from your observations: No of lights. correctly placed proper color? visible from 1nm Status

Center Channel Lights 0

Margin of Channel Lights 0

Pier Lights 4

Axis Lights 6

Moveable Span Lights 2

Preferred Channel Lights 0FENDER SYSTEM SURVEY Circle the data that applies to your observations.

Were there any changes since your last report? YES / NO (If YES, explain on the back of this report.)

Fender System damage due to: NO FENDER SYSTEM ON BRIDGE FIRE DETERIORATION COLLISION

Steel Members (if present) have: NO PROBLEMS EXPOSED BOLTS PROTRUDING PLATES

ANGLES PROTRUDING BEYOND FACE NO STEEL MEMBERS PRESENT

Metal Corner Plates? YES / NO Wales: WOOD STEEL OTHER NO WALES ON THIS BRIDGE.

Debris wedged in or behind fender system? YES / NO (Show location on the back of this record.)

Bridge hardware protruding into channel? YES / NO PIPES LADDERS PLATFORMS

Clearance gauges are: NOT REQUIRED REQUIRED BUT MISSING LEGIBLE NOT LEGIBLE

Drawbridge regulation sign is: NOT REQUIRED REQUIRED BUT MISSING UNREADABLE NO MATCH TO FED REGS.

Bridge Signal: NOT REQUIRED REQUIRED BUT MISSING NOT WORKING FUNCTIONING UNABLE TO CHECK SIGNAL

Cable hanging below the bridge span? YES / NO (Show location on the back of this report.)

A sample Bridge Check/SurveyReport is in your handout.

Follow along on this form as it is explained.

Page 2

This page references:Federal Regulation / Note on Bridge.

Reported discrepancies on bridge – not repaired by bridge owner.

Marine facilities located above bridge.

Bridge Check / Survey and History

Division Flotilla E-mail Address

Federal Regulations / Notes on the BridgeThis is a double span bascule bridge located at mile 0.3 on the Chelsea RiverFederal Regulations:All drawbridges across the Chelsea River shall open on signal. The opening signal for eachdrawbridge is two prolonged blasts followed by one short blast. The acknowledging signal is threeprolonged blasts when the draw can be opened immediately and is two prolonged blasts when thedraw cannot be opened or is open and must be closed 19/01 5/9/01LIGHT configuration: MOVEABLE SPAN LIGHTS - 4 MARGIN OF CHANNEL LIGHTS - 4 PIER LIGHTS - 4

Reported discrepancies on bridge - not repaired by the bridge owner.7/27/2003 - No clearance gauges on a Bascule Bridge. - No regulatory signs on this Bascule Bridge.

Marine facilities located above this bridge.Quarter Deck Marine with 58 recreational boats. Eastern Minerals, Tosco and Coastal Chelsea.

BRIDGE CHECK / SURVEY RESULTS07/27/2003 - HEALY - 617-369-9908All lights were watching properly. This Bascule bridge as no clearance signs. There are no bridgeregulation signs on this bridge.

9/20/02-HEALY-617-368-9908City of Boston claims that they are not required to have clearance gauges on this bridge.There are no bridge regulation signs posted on this bridge. Bridge was repainted suring thesummer of 2002. Repairs were made to damaged areas. Seven photos of this bridge areattached to this report.

05/21/2002-HEALY-617-369-9908The McARDLE Bridge is closed to vehicular traffic for two months. It will open on demand duringthe day for boats but it may take some time while they clear the workmen off the bridge.The bridge is not open for boats from sunset to sunrise seven days a week.

Bridge Class One

A bridge that handles large commercial ship traffic is a Class One bridge. i.e. Tankers, container ships, LNG tankers, large

fishing vessels, such as the Tobin Bridge, McArdle Bridge, Chelsea Bridge. (4% of total bridges)

Any problems and observed incidents should be reported by the most expeditious method to the DSO/AN.

Everything is a potential problem on these bridges.

Check at every opportunity. Report annually and whenever a discrepancy is observed.

Make a formal Bridge Survey / Check Report to the DSO/AN once each year.

Make a formal report whenever you observe a discrepancy on a bridge.

At other times, when no problems are observed, report as AN activity only on a “ANSC 7030” report.

Bridge Class TwoA bridge that handles smaller commercial and larger recreational boat traffic is a Class Two Bridge. No Large vessels. Such as: ferries, commuter boats, small fishing

vessels, lobster boats, high traffic rate of larger recreational vessels, such as the Long Island Bridge in Boston Harbor.

(Represents 5% of the total bridges)

Critical , Urgent and Routine problems and observed incidents should be reported by the most expeditious method to the DSO-AN.

Check monthly when you are in the area. Report annually and when a problem is observed.

Make a formal Bridge Survey / Check Report to the DSO/AN once each year.

Make a formal report whenever you observe a discrepancy on a bridge.

At other times, when no problems are observed, report as AN activity on a “ANSC 7030” report.

Bridge Class Three

A bridge that handles light recreational traffic is a Class Three Bridge. i.e. Morrissey Blvd Bridge in Dorchester Bay.


In general, all problems and observed incidents are reported as a Routine discrepancy to the DSO-AN.

Usually there will be a small craft marine facility, town pier, private docks or a boat ramp located above this bridge or waterway will have heavy recreational boat traffic.

Check and report annually, and report as discrepancies are noted at other times.

Bridge Class Four and “X”A bridge with no marine facilities above it and with marginal small boat traffic, if any, and one that is not navigable by a recreational boat is a Class Four Bridge.i.e. Culverts, herring runs, dams. These facilities are not considered bridges by the CG.


Class Four and “X” bridges should not be checked unless specifically requested by the Bridge Branch.

BRIDGE LIGHTING SURVEY

SPECIFICATIONS

Bridge Lights

Channel Center Lights G -360 Margin of Channel Lights R- 180 Pier Lights R- 180 Pier Axis Lights R- 180 Preferred Channel Lights 3W - 180

Movable Span Lights R > G - 180

Bridge Light Shapes Channel Center Light Margin of Channel lights Pier Lights

Pier Axis Lights

Movable Span Lights Preferred Channel Lights

MID-CHANNEL LIGHTSMID-CHANNEL LIGHTS

(found on Fixed Bridges)

Two 360-degree lanterns.

Lights are visible from both approach channels – up and down stream.

Green in color.

Lanterns should appear as range lights mounted under the lip of the bridge’s span.

Lights mark the center of the navigable channel.

Center Channel Lights

This illustration is included in

your handout.

DRAW

MOVABLE SPAN LIGHTS(found on Movable Span Bridges –

Draw Bridges)

180-degree split-lanterns facing toward the

traffic.

Shows a REDRED light when the draw is closed.

Shows a GREEN light when the draw is

opened.

CLOSED

POSITION

MOVABLE SPAN LIGHTS

Show red when closed

DRAW BRIDGESDRAW BRIDGESOPEN

POSITION

Pier

Lights

Red light is off.Green light is on.

AXIS LIGHTSAXIS LIGHTS

180-degree lanterns that face into the channel.

REDRED in color.

Marks the axis line of the bridge if there are any bends in the channel or turns in the pier structures on a bridge. Also found on Vertical Lift and Swing Bridges.

AXIS LIGHTSAXIS LIGHTS

Mark turns in the channel or center line on Swing and VL bridges..

AXISAXIS

LIGHTSLIGHTS

MARGIN OF CHANNEL LIGHTSMARGIN OF CHANNEL LIGHTS 180-degree lanterns that face the

traffic.

REDRED in color.

Mark the edges of the navigable channel.

Should not be positioned above the lip of the span . . .. . . because most operators assume that these lights mark the lower limit of the span or the clearance point of the bridge span.

Margin of Channel LightsMargin of Channel LightsFace 180 degrees into traffic

Lights define the limits of the navigable channel.

PIER LIGHTSPIER LIGHTS180-degree lanterns – facing the traffic.

REDRED in color.

Lights mark the piers on the bridge.

Note that these lights are used for a different purpose than Axis lights.

LIGHTS FOR BRIDGE PIERS

ON SHORT PIERS

THERE IS

A RED LIGHT

ON EACH END

ON LONG TAPERED PIERS

THERE IS A RED LIGHT

ON EACH END

AND AN ADDITIONAL

RED LIGHT IN CENTER

ON CHANNEL SIDE

TWO MAJOR TYPES OF BRIDGES1. Fixed Bridges

2. Movable Span or Draw Bridges

Lift Span Bridges

Swing Bridges

Bascule BridgesSingle Lift & Double Lift

Bridges

Retractable Span Bridges

SINGLE SPAN FIXED BRIDGE

180° RED Margin of Channel Lights360° GREEN Channel Center Lights

Appears as a range under the lip of the

span.

Should be mounted just

above the lip of the span.

75 to 80% of your bridges.

33

Multiple Channel Fixed Bridge

Preferred Channel Lights

CHESAPEAKE BAY BRIDGE NOTE LOCATION OF THREE VERTICAL WHITE LIGHTS

PREFERREDCHANNEL

LIGHTS

MULTIPLE SPAN FIXED BRIDGE

180° Red Pier & Margin Lights360° Green Center Channel Lights

3 180° WhitePreferred Channel Lights

Swing Bridge - Closed

Snags and tree trunks!

A good reason to stay in the navigable channel when transiting this

area.

Danger

SWING BRIDGE - Closed

Moveable Span Lights -alternate Red & Green, each 60° at 90° to each other. Show RED when the bridge is closed.

180° Red Pier Lights180° Red Axis Lights

Swing Bridge - OPEN

SWING BRIDGE - OpenMoveable Span Lights-

Alternate Red &

Green, each 60° at 90° to each other.

180° Red Pier Lights180° Red Axis Lights

Swing Bridge – Closed

one navigable channel

SWING BRIDGE – CLOSEDone navigable channel

Swing Span-Alternate Red & Green Lights - each at 60° or 90° to each other

180° Red Pier &Axis Lights

SWING BRIDGE – OPENOne navigable channel

Swing Span-Red & Green Each 180°

180° Red Pier &Axis Lights

Lift Bridge Closed

VERTICAL LIFT BRIDGE – Span is closed

180° Red Pier Lights

180° Red Moveable Span Light is on.

360° Green Moveable Span Light is Out

360° Green Lights

Vertical Lift Bridge – OpenChart may show Hor CL and the

open and closed Vert CL.

This would be a Class One Bridge.

VERTICAL LIFT BRIDGE

SPAN IS OPEN


180° Red Moveable Span Light is off.

360° Green Moveable Span Light is on.

180° Red Axis Lights

49

A double-span Bascule Bridge - closed

DOUBLE BASCULE BRIDGE

SPAN is CLOSED


180° Red Moveable Span Light is on.

180° Green Moveable Span Light is off.

180° Red Axis Lights

51

A double-span bascule bridge - open

DOUBLE BASCULE BRIDGEOpen




A Single Bascule Bridge -

Closed

SINGLE BASCULE BRIDGE

SPAN IS CLOSED


180° Red Moveable Span Light is on.180° Green Moveable Span Light is off.

SINGLE BASCULE BRIDGE - Open




Retractable Bridge - closed

RETRACTABLE BRIDGE - Closed

180° Red Pier Light180º Close Light

RETRACTABLE BRIDGE - open

180° Red Pier Light180° Green Open Light

Bridge starts to retract.

Bridge is half way

open.

61

Retractable Bridge

Is fully OPEN

Reporting and marking discrepancies

Lights out

Broken Pier Light Lens

Flow Down River

Always include a top and side view drawing of the bridge with your report.

Show: Direction of flow of the waterway,

The position of all lights,

The location of all discrepancies.

Entering data to the“Light Survey” section.

Report the quantity of each different light type that you observe on the bridge.

Respond to the three questions for each light type that you report.

Enter a zero “0” when a light type does not apply.





Pier Lights 14 YES YES YES CENTER PIER L;IGHT IS EXTINGUISHED

Axis Lights 0 ONE PIER LIGHT LENS IS BROKEN,

Moveable Span Lights 3 YES YES YES ONE LIGHT IS EXTINGUISHED

Preferred Channel Lights 0

Don’t assume that the light configuration shown on the Bridge

report is correct.

WALESWALES must be: In good repair.

Have no sharp metal or bolts sticking into the channel.

Have no metal corners. Have no metal wales without anti-

sparking protection.

Photographs are great evidence to support your observation of a discrepancy.

Photographs greatly increase the credibility of your discrepancy reports.

The Bridge Branch can take corrective action with your photographic evidence.

WALES

Special Regulation Signs Special Regulation Signs must be:must be:

Readable. Located on both sides of bridge. Match the Federal Regulations in the

Coast Pilot. Also reported on page 2 of the D1

Bridge Safety Check / Survey Report .

If a phone is required to open a lift bridge, the phone number must be shown on the regulatory sign.

Special Regulation

Signs

WOOD AND ULTRA POLY MATERIAL USED AS PIER FENDER PROTECTION SYSTEM

ULTRA POLY IS A TOUGH PLASTIC MATERIAL WITH A

HIGH DENSITY AND A LOW COEFFICIENT OF FRICTION

WHICH MAKES IT AN IDEAL MATERIAL FOR BRIDGE PIER

FENDER PROTECTION SYSTEMS. IT IS COMING INTO WIDER

USE TO REPLACE WOODEN RUB RAILS OR WALES.

ULTRA POLY PANELS

BOLTS SECURING WOOD AND ULTRA POLY RUB RAILS ARE RECESSED TO PREVENT DAMAGE AND SPARKS IF A STEEL HULL VESSEL WERE TO RUB AGAINST THEM WHILE PASSING THROUGH

NOTICE RECESSED BOLTS USED TO SECURE WOOD AND ULTRA POLY PANELS TO BRIDGE PIER

BADLY DETERIORATED WOODEN FENDER SYSTEMNOTE THE RED LIGHT DANGLING ON ITS POWER CABLE

A VIEW OF THE DAMAGE TO THE WOODEN FENDER PROTECTION SYSTEM ON A BRIDGE PIER

NOTE THAT BRIDGE

CONTROL SHACK IS

TILTING TOWARDS

WATER AND FENDER

SYSTEM TIMBERS ARE

COMING LOOSE AND

COULD BECOME A

HAZARD TO MARINE

TRAFFIC.

Protective PiersProtective Piersmust be:must be: Wrapped with steel cable. Have nothing projecting into the

navigable channel. Not be rotting at the waterline. Not be rotting down from the top.

THIS FENDER SYSTEM HAS STEEL CORNER

PLATES WITHPROTRUDING BOLT

HEADS.

SOME OF THE TIMBERS ARE

ROTTED AND BADLY DETERIORATED.

THE NUMERALS “14” ON THE

CLEARANCE GAUGE ARE

UNREADABLE.

Some will be lighted

Protective

Piers

Clearance GaugesClearance Gauges are required on Draw Bridges

Should be mounted on the right side of the channel on both sides of the bridge.

Should be readable from ½ mile. Must reflect the actual clearance from

the lowest point of the span over the navigable channel to the mean high water line.

CLEARANCE GAUGES

CLEARANCE GAUGESClearance gauges Clearance gauges are not required are not required

but may be found but may be found on Fixed Bridgeson Fixed Bridges.

83

NOTICE CLEARANCE GAUGE, SPEED SIGN, AND BRIDGE INFORMATION SIGN

84

TWO TYPES OF BRIDGE CLEARANCE GAUGES

85

THIS IS THE RESULT OF THE BARGES COLLIDING WITH THE BRIDGE

86

A TUG BOAT WITH AN INEXPERIENCED CAPTAIN RAN INTO THIS BRIDGE ON A FOGGY NIGHT WRECKING THE BRIDGE – A SHORT TIME LATER A PASSENGER TRAIN WENT INTO THE RIVER WITH CONSIDERABLE LOSS OF LIVES

87

SOME DISTRICTS SUCH AS DISTRICT 11 HAVE IMPLEMENTED THEIR OWN

PROGRAM FOR INSPECTING BRIDGES AND REPORTING THEIR FINDINGS ON A SPECIAL REPORT FORM SUCH AS THIS

FORM CG-2541-D11

Bridge ClearanceBridge Clearance - vertical. . . is measured from the lowest point of span

over the navigable channel to the mean high water line.

If bridge has a haunch (arc), measure the clearance from the lowest point of the bridge span within the navigable channel – often at the edge of the navigable channel to the mean high water mark.

Always sanity check with the vertical clearance printed on your nautical chart.

HAUNCH

How to check the vertical clearance of a bridge?

Look up MHW (Mean High Water) – General Information Block on your nautical chart. MHW = 10.6 feet.

Look up the advertised vertical clearance for the bridge on your nautical chart. Advertised Vert CL = 14 feet.

Determine the Height of Tide for the time of your measurement. 3.6 feet. ( available on a GPS set )

Find the projected Vertical Clearance by adding or subtracting it from your MHW reading and adding the advertised Vertical Clearance.

10.6 – ( 9.8 - 3.6 ) = 4.4 feet + 14 feet = 18.8 feet.

Observe the reading on the Clearance Gauge. 21.5 feet.

Compare your calculated result to the clearance gauge reading. 2.7 foot error

If the clearance numbers still don’t look right,

measure down from the lowest point of the

lip of the bridge span over the navigable channel

to the waterline.

Compare this measurement to your previous

calculations.

If the numbers don’t match (reasonably),

then you have a discrepancy to report. Include

the method(s) that you used for calculating the

clearance error on your report.

Vertical ClearanceVertical Clearance

RangeOf Tide

MHW

Actual Clearance

Vertical Clearance

Actual Height of Tide

10.6 ft

14 ft.

9.8 ft

3.6 ft.

MHW – Height of Tide + Vertical Clearance

(10.6 - (9.8 – 3.6) = 4.4 + 14 = 18.4

18.4 ft.

Bridge ClearanceBridge Clearance – HorizontalMeasurement of the width of the span over

the navigable channel.

Measure the width between any Margin of Channel Lights, if so fitted.

Always sanity check your measurements or estimates to the horizontal clearance printed on your nautical chart.

The horizontal clearance is measured between any Margin of Channel lights.

The clearance is the measurement of the width of the navigable channel only and not the total width

of the span of the bridge.

When NO Margin of Channel lights exist, the horizontal clearance is

measured to the edges of the channel.

Check that the channel is in fact navigable by taking soundings especially along the edges of the

channel. NAVIGATE WITH CARE.

DRAW BRIDGESDRAW BRIDGES

Vertical clearance

Horizontal clearance

Should there be clearances gauges and regulatory signs on this

bridge?

ObstructionsObstructions in theNavigable Channel . . .

Nothing may be hanging down from the span of the bridge into the navigable channel.

Check the depth of the water:Downstream from the bridge,Under the bridge, andUpstream above the bridge.

Report any shoaling or other obstructions in the channel.

Is the channel navigable?

What is the largest boat that can use this channel?

Bridge Operation IssuesBridge Operation Issues

Is the draw operational?

Were the bridge tenders courteous?

Did the bridge tenders respond immediately?

If a phone is required, was the phone manned?

Was the person answering the phone knowledgeable?

Did the horns and alarms on the bridge operate effectively?

Reporting Reporting CriticalCritical and and UrgentUrgent bridge bridge discrepanciesdiscrepancies

Similar to Private Aids, bridges must be maintained and any discrepancies must be repaired by the owner of the bridge.

Informing the bridge owner of reported discrepancies is the

responsibility of the USCG Bridge Branch.

The member’s role is to report any CriticalCritical, UrgentUrgent and RoutineRoutine

discrepancies by mailing a copy of the “Bridge Safety Check / Survey Report” to the DSO-AN within 24

hours of the observation.

Recording Bridge Check Recording Bridge Check observations . . .observations . . .

Discrepancies should be recorded directly on the “D1 Bridge Safety Check / Survey Report.”

If no problems are found, simply write “Watching Properly” on this report form.

If no changes occurred to the bridge since the last time it was reported, respond “YES or NO” to the line “No change since last reported” on this report form.

Reporting discrepancies!

What do you do when you’re not sure , but you

think that a bridge problem has already been

reported?

Report it!

And, also report your activity to AUXDATA

on a ANSC 7030 Mission Activity

Report.

If a bridge is “WATCHING PROPERLY,”

just write it across the “D1 Bridge Safety Check Survey Report” and

forward it to the

DSO-AN.

D1 Bridge Check/Survey Report


















Pier Lights 4

Axis Lights 6














When you use the term “Watching Properly,” it is assumed that you did a complete check of the bridge and have reviewed all the reported discrepancies

shown on page 2 of the “D1 Bridge Safety Check / Survey Report.”

It is also assumed that all prior reported discrepancies have been

repaired on this bridge.

DISTRICT 11 HAS

IMPLEMENTED A PROGRAM

FOR INSPECTING BRIDGES AND

REPORTING THEIR FINDINGS ON A

SPECIAL REPORT FORM.

If a bridge is “NO CHANGE SINCE LAST REPORT,”

just answer “YES” or “NO”

on the “D1 Bridge Check

Survey Report” and forward it

to the

DSO-AN.

Watching Properly

D1 Bridge Check/Survey Report


















Pier Lights 4

Axis Lights 6














It is assumed that you did a complete check of the bridge and that you have

reviewed all previously reported discrepancies shown on page 2 of the “D1 Bridge Check Survey Report” and

found that they have not yet been repaired.

It is also assumed that no new discrepancies have been found.

OR . . .

. . . you can simply E-mail the DSO-AN showing:

Bridge Number exactly as shown on the “D1 Bridge Check Survey Report.”

“Bridge Watching Properly” or

“No Change since Last Report.”

The same rules apply!

Review the Bridge specification data in the heading section.

D1 Bridge Safety Check/Survey Report














Complete the“Fender System Survey” section.

Circle only the items that apply to this bridge.

FENDER SYSTEM SURVEY Circle the data that applies to your observations.


Fender System damage due to: Yes FENDER SYSTEM ON BRIDGE FIRE DETERIORATION COLLISION










D1 Bridge Check/Survey ReportDate of Observation: ____________________Time: ____________

Observer's Signature Date Telephone Number

Division Flotilla E-mail Address

Federal Regulations / Notes on the BridgeThis is a double span bascule bridge located at mile 0.3 on the Chelsea RiverFederal Regulations:All drawbridges across the Chelsea River shall open on signal. The opening signal for eachdrawbridge is two prolonged blasts followed by one short blast. The acknowledging signal is threeprolonged blasts when the draw can be opened immediately and is two prolonged blasts when thedraw cannot be opened or is open and must be closed 19/01 5/9/01

Yes Reported discrepancies on bridge - not repaired by the bridge owner.7/27/2003 - No clearance gauges on a Bascule Bridge. - No regulatory signs on this Bascule Bridge.

Marine facilities located above this bridge.Quarter Deck Marine with 58 recreational boats. Eastern Minerals, Tosco and Coastal Chelsea.

BRIDGE CHECK / SURVEY RESULTS07/27/2003 - HEALY - 617-369-9908All lights were watching properly. This Bascule bridge as no clearance signs. There are no bridgeregulation signs on this bridge.

9/20/02-HEALY-617-368-9908City of Boston claims that they are not required to have clearance gauges on this bridge.There are no bridge regulation signs posted on this bridge. Bridge was repainted suring thesummer of 2002. Repairs were made to damaged areas. Seven photos of this bridge areattached to this report.

05/21/2002-HEALY-617-369-9908The McARDLE Bridge is closed to vehicular traffic for two months. It will open on demand duringthe day for boats but it may take some time while they clear the workmen off the bridge.The bridge is not open for boats from sunset to sunrise seven days a week.

Always fill out a complete

Light Survey and Fender System Survey whenever

you report a bridge.

Reminder…Reminder…

You must report your Bridge activity to AUXDATA on an

ANSC 7030 report to get Auxiliary credit.

113

LATERAL SYSTEM DAY MARKS

MID CHANNEL

RIGHT SIDE OF CHANNEL

LEFT SIDE OFCHANNEL

PIERS OUTSIDE OF CHANNEL

SOME DISTRICTS

SPECIFY THE

LATERAL SYSTEM

OF LIGHTS AND

SIGNALS

FOR BRIDGES

( “RED RIGHT RETURNING”)

114

A RACON ELECTRONIC BEACON IS SOMETIMES INSTALLED TO INDICATE THE CHANNEL CENTER WHEN VISIBILITY IS REDUCED

Any questions about checking a

bridge?

Where do you send bridge discrepancy reports?

To the DSO-AN. How do you handle CRITICAL and URGENT

bridge discrepancy reports? Always send a copy of your “D1 Bridge

Safety Check / Survey Report” to the DSO-AN.

What NAVNAV Rulecovers this problem?

An inoperative draw problem!

Tug approaching a bridge signaling for an opening.

The barge is low enough to pass under the unopened bridge.

Not so with the tug. The bridge has not opened.

OOPs

Where did everyone go??

AHOOGA!AHOOGA!

Dive!Dive!Dive!

Going!

GONE!

There’s life in that old hull yet! Here it comes!

To some skippers, these little events are all in a day’s work

99.99% of D1 Bridges are:

Fixed Bridges, and

Bascule Bridges.

Let’s summarize with a quick review!

FIXED

Clearance gauges Clearance gauges are not required are not required

but may be found but may be found on Fixed Bridgeson Fixed Bridges.

What is the difference between AXIS and

MARGIN OF CHANNEL lights.

DRAW

The End

Each year we train many Auxiliarists to

perform bridge checks.

Each year we pass out many copies of

training materials.

However, only a few members conduct Bridge Check / Survey reports each year.

…and those reporting appear to be the same members each year.

Please make a Please make a commitment to commitment to check a bridgecheck a bridge

or two this year.or two this year.

You just might find out how satisfying this Auxiliary program can be.

We will work with you and help you generate professional reports.

You have direct access to theDSO-AN for any questions, additional training, and even on-the-job training if it can be arranged.

Before you leave here today, please make a

personal commitment to perform some bridge checks this season.

THANK YOUTHANK YOU

VERY MUCHVERY MUCHfor your attention, support, for your attention, support,

and assistance with theand assistance with the

2005 BRIDGE CHECKING 2005 BRIDGE CHECKING PROGRAM.PROGRAM.

Please consider yourself a member of the:

UNITED STATES COAST GUARD AUXILIARY

FIRST NORTHERN

AID TO NAVIGATION TEAM

How to safety check / survey a Bridge Bridge! A presentation by members of the: UNITED STATES COAST GUARD AUXILIARY First Northern, Aid To Navigation.

Documents

bridge bridge

bridge job bridge classes

bridge specifications

tobin bridge

mcardle bridge

chelsea bridge

bridge checking

bridge owner