posted 03/09/10 09:31 AM | updated 03/09/10 11:06 AM
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Streetlight replacement project heads north; will new LED lights come to Eastlake?

LED streetlights at E. Aloha and 10th Ave. E. (CapitolHillSeattle.com photo)

Seattle City Light’s four-year “re-lamping” project for streetlights is headed Eastlake’s way, and it may include installation of the new LED lights seen on Capitol Hill and elsewhere in the city.

Suzanne Hartman, director of Communications and Public Affairs for City Light, says this year’s re-lamping work will start at Denny Way and go north to 65th, starting sometime at the end of March. The schedule isn’t set yet so she can't say when the work will get to Eastlake. 

As part of the project, City Light is using federal stimulus dollars to replace high pressure sodium (HSP) lights with light emitting diode (LED) lights that are brighter, last longer (12-15 years versus four to six for HPS) and cost less to operate. 

In an article written in February, City Councilmember Bruce Harrell and City Light Superintendent Jorge Carrasco said approximately 5,000 LED lights will be installed in this first round. Eventually, all 84,000 city streetlights will be replaced with the new technology.

If you’ve seen the new lights, you know that they are much brighter than the older lights and that the light has an intense, blue/white color. The photo with this post was taken at 10th Ave. E. and E. Aloha, one of the areas that was lit with the LED bulbs last year.

In their article about streetlights, Harrell and Carrasco said City Light is seeking data on the new lamps:

Right now, City Light is testing various types of LED lamps to determine light quality. City Light’s Lighting Design Lab is evaluating comments received from the pilot neighborhoods and providing feedback to lamp manufacturers to identify the most versatile, standard streetlight available. A variety of factors are taken into consideration to arrive at the best lamp alternative. For instance, how the streetlight will be used and where it will be use are taken into account.

Hartman says some people like the new lamps, others don’t. “We try to work with neighborhoods on the light quality,” she says.

Neighbors who questions or opinions about the LED lights should get in touch with Edward Smalley at edward.smalley@seattle.gov, she says.

If you want more information about City Light’s re-lamping project, or if you want to report a burned out lamp (they say they’ll fix them in less than 10 days), there’s a form on the Web site. You can also call 206-684-7056.


new streetlights
What have residents of the pilot neighborhoods been saying about the new LED lights? I have heard they are not well liked and that the quality of the light is unnatural and causes problems with the brain's circadian rhythm.

Here is one article about it in the Stranger:

http://www.thestranger.com/seattle/kill-the-lights/Content?o
Comment by Jim
4 months ago
( 0 votes )
stranger article
If it's going to save energy and maintenance costs while increasing safety by making the streets more visible at night, it seems like a good idea to me.

the whole concept of street lights is pretty unnatural to begin with, upsetting the brain's circadian rhythm. i imagine that the solution will remain to go home, pull down the blinds and turn out the lights.
Comment by striatic
4 months ago
( 0 votes )
epic fail
These things are epic fail.They installed them in the midwest and when it snowed - guess what ? No traffic lights.The LED lights don't get hot enough to melt the snow so the lights get covered.It costs more money to send DOT out to clean them then you'd save with the LED lights.
Comment by SteveDave
4 months ago
( 0 votes )
choose wisely
It'll be important for the community to work with the city to choose the most appropriate light poles for the community or else the city will select for them. Standard issue are never the best for place making.
Comment by Tim
4 months ago
( 0 votes )
RE: choose wisely
each community has its own character and needs in terms of light density, level of illumination, and pole/lamp design.

it is good that SDOT is testing a variety of designs in advance. hopefully they'll come up with some conclusions regarding what works best where.
Comment by striatic
4 months ago
( 0 votes )
not so epic fail
SteveDave,

A couple of points.

1. Traffic lights face sideways and typically have a cowl around the lens of the light, making it easy for blowing snow to gather. Streetlights typically face downwards, and have a shade covering the top of the light. Snow would have to blow vertically, and stick, for this to be a problem.

2. LEDs still generate heat; a 5000 LED array would probably generate more than enough heat to melt any snow that accumulated. A traffic light does not output anywhere near the amount of light that a streetlight does.

3. This is Seattle, not the Midwest. While our extremely hilly streets make ice and snow a huge problem for our (unprepared for snow) city, accumulations of blowing snow during our worst snowstorms are nowhere near the degree of what the Midwest experiences during a typical snowstorm/blizzard.
Comment by NickS
4 months ago
( 0 votes )
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