The Meaning of Hahamongna

The original settlers of the region were sometimes called the Hahamongna Indians. The word means "Flowing Waters, Fruitful Valley" in the native Tongva language.

Hahamongna News


Devil's Gate Dam Project Could be Larger than Expected





Dan Abendschein


Altadena Patch


The county's plans to remove massive amounts of dirt and debris from the Devil's Gate Dam in the Hahamongna Watershed Park over several years could end being even larger than expected, according to an article published in the Valley Sun on Monday.

Kerjon Lee of the County Department of Public Works confirmed in an interview with Patch that the county may remove up to 4 million cubic yards of earth rather than the 1.5 to 2 million that was initially proposed by the department.

The reason for the difference, said Lee, is that the county initially envisioned the removal as an emergency project that could be started much sooner - since the department will now be doing an Environmental Impact Report (EIR), officials expect it to take a year or two to get started.

That means, the county must assume that the amount of the debris will greatly increase from winter storms for the next two years, Lee said.

"We understand that the EIR process is going to take time," Lee said. "Meanwhile, we know that there will be two more storm seasons."

Devil's Gate Dam Project Will Require Environmental Impact Report

While the county could ultimately remove much more dirt than officials had originally suggested, the project will likely not be carried out over a larger area in the park, Lee said. That means that the county may not remove any more trees than they had originally estimated in their proposed plan last year. Depending on the outcome of the EIR, it could potentially still mean fewer trees are removed, Lee added.

Hauling all the extra dirt out would take longer than the three year period suggested by the county last winter, he said, but there may also be other alternatives where it might not.

For example, Lee said, the county may look at using a road in the west side of the park that the City of Pasadena is looking at building which would give them a much faster haul route than bringing the dirt out east through Windsor Avenue in Altadena.

Other alternatives to massive dirt removal will also be studied in the EIR, Lee said.

In the mean time, the county has been working on a small scale removal of dirt that is closest to the edge of the dam. That work was done to make sure the dam can get through the upcoming winter without any serious problems, Lee said.

More updated information on the project will be made available at upcoming meetings in October.

The first meeting will be held from 6:30 p.m. to 8:30 p.m. on October 5 in the Rose Bowl Stadium's visitor's locker room. The second will be from 9 a.m. to 11 a.m. on October 15 at La Canada Flintridge High School.

'Little Dig' Starts in Hahamongna (Photo Gallery)

Public Input Meetings on Hahamongna 'Big Dig' to be Held in October

Related Topics: Devil's Gate Dam, Los Angeles County, hahamongna, and sediment removal

Do you think your enjoyment of Hahamongna would be affected by a larger removal project? Tell us in the comments.


9:41pm on Thursday, September 29, 2011
"The reason for the difference, said Lee, is that the county initially envisioned the removal as an emergency project " Oh yes! The tribe remembers all of that BS. Chicken Little talk to get some FEMA scratch. It wasn't an emergency at all. We are still ALL HERE and accounted for.

Great, then this: "the county may look at using a road in the west side of the park that the City of Pasadena is looking at building" WHAT?!? City of Pa... that would dovetail ever so lovingly with the city's stupid plans to develop in Hahamongna.

If the City of Pasadena showed good faith by seeking to put PERMANENT PROTECTIONS on designated areas in the watershed, then it wouldn't be so stressful for neighbors and friends, the tribe. Instead, the city creates endless insecurity by strange actions like this. They've got BIG-ASS plans that are nowhere near GREEN.

Ducks, Great-Horned owls, salimanders, alders, jelly palm---WHO CARES!?! We got plastic turf, and more parking, electric charging stations installed in the trunks of trees! On and on...

3:12am on Friday, September 30, 2011
This is already not going well. Can you imagine the tens of thousands of truck trips, noise, dirt, dust and flying gravel on our roads and freeways not to mention the traffic and destruction of my guess Windsor Ave. in guess where? ALTADENA. Interesting that Pasadena claims plans 4 a new road, a road to where and why? Hmmm? Of course dirt must be removed behind a dam, but damn. The deal that never should have been made, the giving/selling of the water sources along ALTADENA'S mountains to the city of Pasadena in the 40's. (?) The County would have been a far better caretaker of these extremely valuable lands. A damn shame. There's an interesting story to look into eh?

4:00am on Friday, September 30, 2011
In conjunction with the debris basin clean-out and reduction of staff at JPL underway, perhaps this would be a good time to finally and forever close the "temporary" East parking lot (off of Widsor Ave at Ventura) of JPL. Temporary since 1986? Is that correct? Altadena has suffered long enough.

11:25am on Friday, September 30, 2011
I think the Hahamongna Annex Plan has the JPL east lot being converted to water spreading basins as well as a small lot with a restroom at the north end to serve the Arroyo Seco trail above the current east lot. So you may get your wish, at least, in part - there would still be a parking lot, but it would be smaller and serve recreational users.