rive-sud Pont Samuel-De Champlain

[Wave Arts]

La passerelle ressemble à une version miniature du tablier du pont

[Barbès-Rochechouart]

La passerelle sous le pont est... un choix un peu douteux.. vous imaginez les oiseux perchés sur les barres diagonales qui vont complement salir la piste, et potentiellement se lâcher sur les cyclistes/piétons?

Ca sera pas beau à voir à mon avis...

Modifié 20 novembre 2019 par Barbès-Rochechouart

[ScarletCoral]

il y a 5 minutes, Barbès-Rochechouart a dit :

La passerelle sous le pont est... un choix un peu douteux.. vous imaginez les oiseux perchés sur les barres diagonales qui vont complement salir la piste, et potentiellement se lâcher sur les cyclistes/piétons?

Ca sera pas beau à voir à mon avis...

La passerelle sert à monter sur la piste multifonctionnelle qui sera SUR le tablier du pont.

Voir vidéo sur le compte twitter du journaliste Pascal Robidas

 

[Barbès-Rochechouart]

3 minutes ago, ScarletCoral said:

La passerelle sert à monter sur la piste multifonctionnelle qui sera SUR le tablier du pont.

Voir vidéo sur le compte twitter du journaliste Pascal Robidas

 

Oui je sais, je parle des ~200m de la bretelle d’acces, qui passe du côté “nord” de la 132, qui passe par-dessus celle-ci, pour faire la boucle menant à la piste sur le côté est du pont

bref les photos montrées plus haut  

[Monsieur_MA]

Il y a 4 heures, Barbès-Rochechouart a dit :

La passerelle sous le pont est... un choix un peu douteux.. vous imaginez les oiseux perchés sur les barres diagonales qui vont complement salir la piste, et potentiellement se lâcher sur les cyclistes/piétons?

Ca sera pas beau à voir à mon avis...

Ils vont mettre des petits pics sur les poutrelles pour empêcher les pigeons et autres volatiles de s'y poser.

[Wave Arts]

Il y a 6 heures, Monsieur_MA a dit :

Ils vont mettre des petits pics sur les poutrelles pour empêcher les pigeons et autres volatiles de s'y poser.

Comme ce qu'on retrouve partout à N-Y?

[peekay]

https://montrealgazette.com/news/local-news/theyve-turned-on-the-lights-on-montreals-new-champlain-bridge.

 

There will be no hourly light show, and the colours won’t change very often, but builders hope the lights on the new Samuel de Champlain Bridge will still impress onlookers.

The bridge’s lights have been switched on permanently after a short period of testing. It took 15 months for builders to mount the lights and wire the bridge.

The lights — more than 7,800 LED bulbs — can display an “almost infinite palette of colours,” said Martin Chamberland, the operations manager for Signature on the St. Lawrence, the consortium in charge of building and maintaining the new bridge.

Despite the possibilities available, white is to be the usual colour of the bridge’s lights. In recent nights, however, the bridge has been a mix of blue and green in an effort to minimize the possibility of causing collisions among migrating birds, Chamberland said.

 

By comparison, the lights on the Jacques Cartier Bridge — installed for the city’s 375th anniversary in 2017 — are composed of 2,800 light tubes and projectors. Designed by Moment Factory, the lighting of that bridge reflects the mood of the city as gleaned through posts on social media. That bridge also has a light show every hour where the bridge displays many different colours.

The cost of the lights on the Jacques Cartier was $39.5 million, paid by the federal government. Chamberland would not detail the cost of the lights on the new Champlain, saying it’s part of the overall cost to build and maintain the bridge.

 

 

The laziest, dumbest article I've seen in months. Wow just wow...

[montreal92]

Bon choix! Très soulagé de voir que les concepteurs ont opté pour la sobriété d'un l'éclairage blanc.

La ville est déjà saturée de projets de mise en lumière de mauvaises qualités qui utilisent tous les mêmes 4-5 couleurs de LED (le pire de tous étant probablement la Maison olympique... ouf). Pas besoin d'en ajouter une couche.

D'ailleurs, je suis d'avis qu'une charte lumières devrait-être adoptée par la ville avant que tout le monde se mettent à poser des LED partout. Ça devient une compétition un peu absurde. 😂 Si je ne m'abuse, Québec s'est dotée d'une telle charte.

Modifié 21 novembre 2019 par montreal92

[Matt]

Je suis d laccord, l'illumination des batiments et infrastuctures oui mais de facon soignee. De plus en plus, il y a une sur-enchere sur les couleurs agressives... ca en devient ridicule.

[ScarletCoral]

https://nationalpost.com/news/report-warns-planned-lrt-track-could-corrode-montreals-new-4-5b-champlain-bridge

Report warns planned LRT track could corrode Montreal's new $4.5B Champlain Bridge

The government says it is confident it can avoid the issue, but stray currents from a new LRT line could corrode the brand new bridge prematurely

Ryan Tumilty and Jason Magder
November 26, 2019
10:51 AM EST

 

A light-rail line planned for the new Samuel De Champlain bridge in Montreal runs the risk of corroding the $4.5 billion structure, a risk authorities say they’re taking all the necessary measures to avoid.

The eight-lane bridge opened in July of this year, replacing the older Champlain Bridge that was compromised by the overuse of road salt and had to be replaced before it failed.

The proposed LRT line will run in the centre of the new span with a 1500-volt direct current power supply through overhead wires, but there is a risk that could lead to the electricity leaching into the surrounding bridge structure and causing corrosion over time.

“A DC power distribution system for transit applications is subject to stray currents leaking into the underlying infrastructure and may cause premature corrosion,” said a report on the issue that was sent to the project’s chief engineer and included in an access to information request.

The report goes on to say that the risks can be mitigated with special railway ties, sensors to detect any stray current and regular maintenance to ensure the track stays clean.

Lama Khodr, a spokesperson for Infrastructure Canada, said they have worked closely with the bridge builder Signature on the Saint-Lawrence and the builders of the transit network, the Réseau express métropolitain (REM) to ensure the corrosion doesn’t happen.

“Infrastructure Canada and Signature on the Saint-Lawrence (SSL) worked closely with the engineering team for the REM project to ensure that the light rail transit system to be integrated into the central corridor of the bridge will not pose any harm to the structure of the bridge which has been built to last 125 years,” she said in an email to the National Post.

Khodr said they’re still working with authorities in Montreal to ensure that all the necessary steps are taken to avoid any damage to the bridge when the LRT is installed. She said the bridge design was finalized before the final design of the LRT was known.

Corroded infrastructure is an all-to-familiar tale in Montreal. The old Champlain Bridge, built in 1962, is actually the second newest of five spans linking Montreal to the South Shore, but it corroded prematurely because it was built without proper drainage.

Builders at the time did not envision the use of road salt on the structure, and the span was built in such a way that it was impossible to remove sections of it and replace them. The corrosion, caused by a water and salt mix, damaged the bridge badly, and by the time authorities moved to address the drainage situation in the 1990s, most of the damage had already been done.

The federal authority maintaining the older bridge poured in more than $500 million in recent years just to keep it open and operational, while the new span was completed. The bridge is now closed and due to be demolished by 2022 at a cost of $400 million.

Speaking for CDPQ Infra, the division of the Caisse de depôt et placement du Québec building the REM, Jean-Vincent Lacroix said the builders are well aware of the issues with stray currents.

He said the REM is not the first light rail system to be built over a bridge and techniques to deal with the phenomenon are “tested, proven and effective.”

“The phenomenon of stray currents can be compared to water leaks,” Lacroix wrote in an email. “In electricity, electrical losses related to an electrical device are called stray currents. These currents do not always follow the planned path (by the catenary and by the rails); they may sometimes, in small quantities, look for another way to circulate.

He said they’re confident they can deal with the situation both on the Champlain and on the five new bridges they’re building as part of the project.

“All infrastructures built within the scope of the REM project will have to integrate measures to counter stray currents.”

He said builders are installing metal components to collect the currents on bridges and will install monitoring tools to detect any lapses in the protection systems put in place.

“We are working in collaboration with the designers of the SSL bridge and Infrastructure Canada, and we are very confident that our preventive design measures will avoid the accelerated corrosion of the new Samuel-de Champlain Bridge, and all the other infrastructures of the REM,” he wrote. “We can therefore affirm that there will be no acceleration of corrosion to the bridge caused by the REM.”