We spoke to Caltrans and got an answer about why there is only a couple feet of newly painted rainbow.
Chief spokesperson Lauren Wonder told us they are in the process of doing a tunnel 'overhaul' which will take about a month.
"We'll finish the rainbows over the next month. We're doing a whole concerted effort on the tunnel including washing the walls [inside] and removing graffiti. We've got an old radio antennae we're going to take out and we'll power wash the tunnel face."
As to why there is only two feet of fresh paint, Wonder says they are "testing the colors." Caltrans is working with a local Marin woman, a color consultant, who is donating her time. She is giving them advice on the color match.
"She thinks it's a little too bright," said Wonder.
Local businesses have contacted Caltrans about donating funds to get the tunnel bores painted and Caltrans is still figuring out a way to accept the donations and work out the collaborative effort.
Several years ago, someone got the idea to install colored tiles, but apparently they ran off with the donations. Wonder says this was not a Caltrans project.
"We wouldn't have put up tiles anyway," she says, "the tiles could fall."
Here's to finding a pot of gold--or at least Marin--at the end of the rainbow.


I like the bright colors. Besides, they will fade fairly quickly with the sun.
Posted by: Jackson | Tuesday, September 22, 2009 at 10:36 AM
That rainbow is missing one color, it only has six.
Roy G. Biv (red, orange, yellow, green, blue, indigo, violet)
Posted by: Kevin | Tuesday, September 22, 2009 at 10:46 AM
You are right, but it's just eye candy to enjoy, not a scientific display....the brighter the better!
Posted by: Kat | Tuesday, September 22, 2009 at 11:15 AM
How about using rainbow colored lights for the interior tunnel ceiling.
Example - how blue light is used and represented on the Boston Zakim bridge:
http://www.portlandart.net/archives/boston_Zakim_BR.jpg
Posted by: J | Tuesday, September 22, 2009 at 11:28 AM
Yes, bright is good! I am an artist, a colorist,
and the others here are correct, it will fade soon.
Posted by: nicholascoley | Tuesday, September 22, 2009 at 11:30 AM
i agree. bright colors are apropos.
Posted by: P | Tuesday, September 22, 2009 at 12:06 PM
I vote for putting in natural gas jets so we can have a perpetual ring of flame.
Posted by: JEM | Tuesday, September 22, 2009 at 12:11 PM
It really needs to be bright. Is she a color consultant for the Army?
Posted by: sharon | Tuesday, September 22, 2009 at 12:15 PM
Jackson, there are only six colors in the rainbow - Red Orange Yellow Green Blue Violet. All the rainbow flags used for San Francisco's Pride festivities have six colors. The tunnels also have six colors. In any case, the rainbow is nice but not a necessity. It is appropriate that unnecessary decoration be paid for from private donations and not our tax dollars! It is time that government realizes that they have to stop waste in all its forms. Community members who want 'extras' should be prepared to pay for them from their own funds and not from tax payer funds.
Posted by: Al | Tuesday, September 22, 2009 at 12:19 PM
I think the color consultant is full of beans, the colors should be super bright.
I drive through that tunnel every day and the test swatch (which was my guess, doesn't seem to warrant the mystery label) look fine. And as another commenter mentioned, it's going to fade, so start bright bright bright.
Posted by: Sam Foster | Tuesday, September 22, 2009 at 12:31 PM
Oh if this were only my biggest worry.
Posted by: Tom | Tuesday, September 22, 2009 at 12:40 PM
Not that I have anything against the gay community, but this rainbow has nothing to do with them. It's been here for years.
Posted by: mike lynnn | Tuesday, September 22, 2009 at 12:41 PM
I think Al hates all things that bring joy to people in life. Al, do you wish that the Golden Gate Bridge wasn't red?
Posted by: Brian | Tuesday, September 22, 2009 at 12:41 PM
Yes please get it right this time and use all seven colors.
Posted by: Jon | Tuesday, September 22, 2009 at 12:44 PM
I don't think the Golden Gate should be red, as Lawrence Ferlinghetti said, it should be GOLD. The brighter the better...
Posted by: Abraham.Fagolavitz | Tuesday, September 22, 2009 at 12:49 PM
Sharon,you're wrong. A rainbow has 7 colors.
Posted by: Jimmy | Tuesday, September 22, 2009 at 12:58 PM
Don't you guys have anything better to do with your time than respond to this crap.
Only in Marin.
Posted by: I wonder | Tuesday, September 22, 2009 at 01:13 PM
The Golden Gate Bridge is painted "international orange'. The color deemed most visible to ships wanting access to the Bay.
Posted by: nonie | Tuesday, September 22, 2009 at 01:14 PM
Paint it grey.
Posted by: pandaKrusher | Tuesday, September 22, 2009 at 01:17 PM
A rainbow is 7 colors: ROYGBIV - RED ORANGE YELLOW GREEN BLUE INDIGO and VIOLET. Ask any kindergartener this question - they will know that there are 7 colors in a real rainbow (where light is de-fracted). So Jackson is right about a true rainbow that you find in nature. Sharon is right that there are 6 colors in rainbows you find on marketing and commercial products, like stickers, flags, boxes of crayons etc. And why? Because probably it's cheaper to make.
And as far as I can remember that rainbow has been on that tunnel - more than 30 yrs or so?
Posted by: Gee | Tuesday, September 22, 2009 at 01:29 PM
color consultant for a rainbow? can't you just sing the song and know what you need?
Posted by: Scott Moyer | Tuesday, September 22, 2009 at 01:29 PM
Strictly speaking, the rainbow has every possible color in it, except black, white, and combinations of those two (i.e., gray).
Posted by: Play with Prisms | Tuesday, September 22, 2009 at 01:32 PM
you do know that a real rainbow reflects a continuous band of colors, right? the division into 6 or 7 discrete ones is arbitrary.
Posted by: james | Tuesday, September 22, 2009 at 01:32 PM
To "I wonder": apparently you don't have anything better to do with your time either.
Posted by: Abe | Tuesday, September 22, 2009 at 01:45 PM
robin williams used to joke that the rainbows are a minority detector for marin county
Posted by: nm | Tuesday, September 22, 2009 at 01:54 PM
Al, you're wrong. There are 7 colors in a rainbow!! Not 6. The 7 are -- red, orange, yellow, green, blue, indigo, and violet.
Posted by: Simon LeChay | Tuesday, September 22, 2009 at 01:55 PM
I think its a great idea, and the brighter the better! The "rainbow tunnel" is a great memory from my childhood.
But did they seriously have to hire a "color consultant" for this? It a RAINBOW- I'm thinking it doesn't require expert analysis to tell what colors belong in it.
Posted by: Kmonk | Tuesday, September 22, 2009 at 01:58 PM
the rainbow is missing pink!
Posted by: just aguy | Tuesday, September 22, 2009 at 01:58 PM
Sharon, you are worng and Jackson is right. White light when broken into its component parts by a prism contains 7 colors; the neumonic for remembering their order is as stated Roy G. Biv. Temperature wise red is the coolest and violet the hottest of visible light waves. All this from high school.somebody lerned roy g.Biv in kindergarten?? Wow!!
Posted by: steve re | Tuesday, September 22, 2009 at 01:59 PM
i thought for sure the answer would have been something about global warming and/or president bush's fault.
Posted by: mar456 | Tuesday, September 22, 2009 at 02:06 PM
Roads are ugly. Stop putting lipstick on the pig with public money.
Posted by: D | Tuesday, September 22, 2009 at 02:07 PM
steve, are you saying that the sun's light has only seven wavelengths in the visible spectrum? or maybe that water vapor only reflects seven?
Posted by: james | Tuesday, September 22, 2009 at 02:11 PM
Testing colors ? by the time Cal-Trans gets done with it this donated paint job will cost the taxpayers $100,000.....
Posted by: M.Holmes | Tuesday, September 22, 2009 at 02:21 PM
When the rainbows first mysteriously appeared on the tunnels, in the late 60s or early 70s, they were really beautiful. Pastel shades that blurred into one another, they were really well painted. These hard, narrow stripes are not any kind of depiction of a real rainbow and are a pale (so to speak) imitation of the original paint job. And the spectrum is generally divided into seven main colors, but of course there are infinite variants across the band. The idea that there are "six" colors is simply errant.
Posted by: Mary Ann | Tuesday, September 22, 2009 at 02:23 PM
I like the tile idea, and if they are installed properly, they won't fall off.
Posted by: Joe Lazar | Tuesday, September 22, 2009 at 02:33 PM
The Marin newspaper reports the following quotes from the "color consultant":
---------(quoting)
Belinda Hallmark, an architectural color and finish consultant, will help Caltrans select the paint that will be part of the refreshed rainbow. Hallmark believes the test paints put up by Caltrans are too bright, and she said she will seek something more subtle.
"It should be something that complements the surrounding environment and looks natural," said Hallmark, who is donating her time. "Caltrans showed me some pictures when the paint first went up and it was quite bright."
----------(end quote)
Folks, we need to speak up NOW to save the rainbow from becoming a wash of green, gray, and tan!
Posted by: Rational Approach | Tuesday, September 22, 2009 at 02:35 PM
Bring back the mermaid.
Posted by: Sean | Tuesday, September 22, 2009 at 02:41 PM
7 colors in the rainbow? Don't be ridiculous. There are billions of colors in the rainbow.
However, there are 3 primary colors and 3 secondary colors, and what do you know, there they are.
Posted by: btinc | Tuesday, September 22, 2009 at 02:42 PM
Rainbows are supposed to be bright. What's she smoking?
Posted by: Karenn | Tuesday, September 22, 2009 at 02:43 PM
They really oughtta put the rainbow on the SF-bound side & the heck w/ tradition. Maybe put dollar bills on the marin-bound side.
Posted by: Chuck Woolery | Tuesday, September 22, 2009 at 02:57 PM
When a CalTrans worker first put up the rainbow he didn't consult a color consultant, pro bono or not. What's wrong with people today that they can't do something this simple without having to ask someone in a white coat for guidance?
Posted by: Gryphonisle | Tuesday, September 22, 2009 at 03:10 PM
What happened to the honking that used to accompany being in the tunnel? Where have all the good times gone?
Posted by: craig | Tuesday, September 22, 2009 at 03:13 PM
Interesting question - how many colors are there in a rainbow? When you look at one in nature, how many do you see? I think I usually only see four or five, depending on how well-defined it is. Does anyone know whether we are hard-wired or acculturated to see bands in the spectrum, say from a prism? It would be cool if the painted one on the tunnel could be a smooth gradient across the spectrum, instead of discrete bands.
Posted by: zedly | Tuesday, September 22, 2009 at 03:20 PM
I'm intrigued by Mary Ann's comment:
"When the rainbows first mysteriously appeared on the tunnels, in the late 60s or early 70s, they were really beautiful. Pastel shades that blurred into one another, they were really well painted. These hard, narrow stripes are not any kind of depiction of a real rainbow and are a pale (so to speak) imitation of the original paint job."
Does anyone have a picture of the original paint job? It would be nice to recreate the original version.
Posted by: Abe | Tuesday, September 22, 2009 at 03:21 PM
The "gay community" has been here much longer than the rainbows on the tunnells. We've ALWAYS been "here," an annoying fact of life for bigots and hate-mongers the world over. Personally, I don't do rainbow: way tacky. Lavender is also unsuitable for me; I'm an Autumn.
Posted by: Butch Pansy | Tuesday, September 22, 2009 at 03:23 PM
Yes, yes, honking in the tunnel--let you know people were having fun! And the rainbow was there when I was a flower child so to me it signaled the entrance to the paradise of Mt Tam, Sausalito where the musicians lived, nude beaches and friendly back-to-the-land pot growers. Back before Marin got so Marin'd.
Posted by: Lady Jane | Tuesday, September 22, 2009 at 03:27 PM
Well said Chuck!!
However, it looks like the orange needs to be more "orangey"! It looks like yellow ochre.
Posted by: Tricia | Tuesday, September 22, 2009 at 03:27 PM
So enough how about how many colors are in the rainbow... I like the fact that the focus wasn't to paint white over or remove the rainbow, so that's good... let's move on... About 30 years ago the thing to do while driving South through this tunnel towards the Golden Gate bridge was to hold your breath, lift your feet off the floor, make a wish, honk your horn repeatedly and when you see the rainbow in the rear view mirror you can breath again and your wish will come true. It's a silly little legend but that's what we did. I drove through recently and noticed no one repeating this method - maybe it's stupid but that's what you did as a local here. It would be nice to see people not so jaded. Let's bring this back - honk your horns!
Posted by: Marin | Tuesday, September 22, 2009 at 03:28 PM
Isn't it time for an electric arc to celebrate this new era of technology? Rainbows are so passe...
Posted by: Toad | Tuesday, September 22, 2009 at 03:48 PM
Does this finally "mean" that Marin - which is essentially for the nouveau riche anymore --- is somewhat "gay" ? I mean, Sean Penn (MILK) lives there now -- but what does that mean anyway ?
Marin is pretentious, highly overpriced, and "precious". In other words --- USELESS !
Posted by: Zsa Zsa | Tuesday, September 22, 2009 at 03:50 PM