Hammersmith bridge tender

[ses]

Hello
We have been asked to tender for the electrical works including cctv for hammersmith bridge refurbishment in west london

This job is rather out of our scope and would be keen to work alongside someone who has experience in this field if anybody is interested in participating

Please pm me or comment for more information


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[RWJ]

Have they specified a CCTV system or brand, or is it open ?

 

[ses]

The bridge is 225m long and 20m wide. The scope of work is as follows;

1. Balustrade Lighting- 2.44 m wide fence, 86 OFF. Currently GLS Lamps which are prone to vandalism, a better solution would be preferred.
2. Lighting column and lanterns- 22 OFF 9 its likely that light columns are kept)
3. New Distribution board and new cabling
4. 13m high, 4 OFF towers having 3 platforms
a. 8 bulkhead per tower and
b. 4 emergency lights per tower
5. CCTV System comprising 20 No,. night vision cameras mounted at strategic locations including on towers
6. Abutment Room- Lighting and small power
7. 12m high shafts, 4 OFF each having 8 bulkheads and 4 emergency lights
8. Navigational lights- Raise/lower facility
9. 2 OFF Tow paths having 4 anti-vandal bulkheads each


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[ses]

No brand specified yet


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[ses]

For the refurbishment of the lighting numerous onsite trials are suggested. Subject to on-site trials, it is considered that the Urbis / Aquila VarioLED concept system may be most appropriate for the decorative illumination of the balustrade. The variable distributions and large variety of colour temperatures should ensure an excellent result can be achieved. The remote driver / transformer combination is a significant benefit over other products in a similar vein – allowing for ease of maintenance at a key point of failure.
It is considered that the use of LEDs, without a bespoke maintenance solution (such as scissor lift or spring reel), will sufficiently limit the need for river-side balustrade maintenance. The use of hazardous maintenance practices, such as the use of harnesses, will therefore be reduced to a minimum. The major need to access the balustrade lighting (to change traditional lamps) will be removed with the use of a solid state light source. The only maintenance activities that will be required to be performed to balustrade lighting are cleaning and dealing with random failures. It is envisaged that cleaning may be achieved from the footway, leaving only failures to deal with by way of, for example, harnessed operatives. The selection of a good quality product from a reputable manufacturer will go a long way to ensuring this activity is kept to a minimum.
The total estimated initial cost of the refurbishment of the lighting installation is approximately £0.52m


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[richy3333]

Good views from the top. I was up there last time the bridge was refurbished, must be 15/20 years ago now?

 

[ses]

Yes nice views of the river


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[Brightspark2]

Sounds like a good job that, good luck with it.

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[davesparks]

Congratulations on being asked to tender for this, that in itself is an achievement in my opinion.

This sounds to me like the kid of job where you can build a good working relationship with the customer and secure some goodwill and future work.




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