PaintSquare.com


The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

Register Now for D+D 2014

Paint and Coatings Industry News

Main News Page


Rain Botches Bridge’s New Coating Job

Monday, February 27, 2012

More items for Coating Application

Comment | More

Mother Nature is taking the rap for putting a damper on a $3.5 million waterproofing project on Australia’s iconic Sydney Harbour Bridge.

Bridge officials have reported “several defects in the road surface” that was upgraded last month as part of a major weatherproofing project for the steel through arch bridge and its approaches.

 Sydney Harbour Bridge

 Sydneyrocks.org

Built in 1932, the iconic Sydney Harbour Bridge—known to locals as “the coathanger”—is the world’s widest long-span bridge and tallest steel arch bridge, measuring 440 feet from the top to the water.

The waterproofing project, needed to prevent corrosion, was conducted in January when the holiday season meant 30,000 fewer people each day on the span, officials said. Work on the 1932 structure—3,770 feet long and 161 feet wide—was completed on Jan. 22.

By mid-February, however, cracks had erupted, and crews from New South Wales Transport were temporarily closing lanes to make repairs.

Heavy Rain Cited

The project was supposed to have been done in dry weather, to allow sufficient drying time. However, Sydney experienced the wettest January in 11 years, followed by severe thunderstorms in early February.

“Unfortunately, the heavy rain on the first weekend of work and subsequent wet weather of the past few days has caused water pockets to form and create cracks in several areas on the top layer of the asphalt,” an NSW Transport spokeswoman said.

“It is important to fix the defects before they become more of a problem and form potholes.”

She added: “We had several hours of heavy rain the first weekend of the upgrade and, unfortunately, it appears moisture has been trapped under the asphalt in a couple of areas.

“While it is not ideal to lay asphalt in wet weather, we dried the surface as thoroughly as possible and continued to apply the seal to ensure the job was completed and the bridge reopened to traffic on schedule.”

Seal Called Intact

The defects are superficial and “have not threatened the integrity of the waterproof seal,” the spokeswoman said.

Meanwhile, the agency “will continue to monitor the surface of the bridge and approaches for any further defects.”

The project was announced in November, when New South Wales Roads Minister Duncan Gay told reporters that the “old coathanger”—as the bridge is fondly known to locals—was “frankly a bit of a mess at the moment, right down to the membrane.”

“That dear lady, 80 years young, needs this overhaul like all hell,” Gay said.

   

Tagged categories: Bridge/parking deck waterproofing; Bridges; Corrosion; Curing; Waterproofing

Comment Join the Conversation:

Sign in to our community to add your comments.

JPCL Europe
In the NEW issue:

High-solids epoxy systems for protective and marine coatings, waterjetting safety, film galvanising applications, and much more! www.jpcleurope.com


Abrasives Inc.
Need abrasives FAST?

Emergencies happen – who bails you out? One call to Abrasives Inc. and it's taken care of. Period. Sales support available 24/7.
800-584-7524


Minerals Research & Recovery
PREMIUM SLAG ABRASIVES

Visit mrrinc.com. Companies specializing in abandonment and decommissioning projects have discovered that Sharpshot® 20X50 copper slag is an ideal product for subsea waterjet cutting.
Call Steve: 520-297-4626


Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Hydro Utility Penstock Overcoated in 1997. Was power washed and overcoated with major cost saving. No environmental impact with Termarust's low LC50 of 41,007 ppm.


Spider, a Division of SafeWorks, LLC
Complete Suspended Access Solutions

Need Access? From platforms & hoists to rigging & fall protection, Spider leads the industry in rentals, sales & service.
Call today: 877-774-3370


Safway Services
One Source. Every Solution.

The Safway Group is your source for multiservices. Painting, coating, insulation and more – all from the most trusted name in the industry.


Simpson Strong-Tie
Repair, Protect & Strengthen

Need a coating? Turn to Fox. We have solutions to repair, protect and strengthen concrete, steel and wood substrates. Call 888-760-0369 or email info@foxind.com

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker JPCL Europe

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2000-2014, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com