Our Own Altadena Fire Rebuild: Glenrose Avenue Site Clearing
Cleared our Glenrose Avenue Altadena fire rebuild lot: driveway concrete, fire sprinklers, sewer lateral out, soils report done, rough graded 1% to street.
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Drainage plans
Posts specifically about drainage plans as a deliverable: what's in them, what they cost, and how long they take to get approved.
Our Own Altadena Fire Rebuild: Glenrose Avenue Drainage
Our own Altadena fire rebuild on Glenrose Avenue: reversing a rear-sloping lot with area drains and a 12 inch parkway drain, no pump.
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W Mendocino Ave Drainage Design for an Altadena Fire Rebuild
W Mendocino Ave fire rebuild in Altadena: two-story house with cellar and garage ADU, tied into the existing driveway apron and routed to a rain garden.
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Pacific Palisades Grading Plan: 12% Slope, Basement Level, and Deep Trench Drainage
Grading plan for a Pacific Palisades hillside rebuild on a 12% slope. Garage and basement on same level with lightwell, area drains, and deep trench drainage to the street.
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Altadena Drainage Plan: 11-Foot Slope, ADU, and Rain Garden Design
A drainage plan and hydrology report for an Altadena fire rebuild where the site slopes 11 feet from street to rear. We designed flowlines around the main house and proposed ADU, added plastic lined rain gardens on both sides, and used the hydrology report to show pre-fire impervious was greater than proposed.
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Most Altadena Fire Rebuilds Do Not Need a Full Grading Plan. Here's How to Know If Yours Does.
LA County requirements keep changing after the Eaton Fire. Most Altadena fire rebuilds only need a drainage plan, not a full grading plan. Here is what can trigger the requirements.
Read MoreDraining a Sideways Lot Addition When You Cannot Slope to the Rear
An Altadena fire rebuild addition on a sideways lot created a drainage challenge when the rear of the addition sat lower than the existing garage. Here is how we figured out the drainage without using a sump pump.
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Olive Ave Drainage Plan - Sideways Lot with 7% East to West Slope
Drainage plan for a 0.1685-acre Altadena sideways lot. The lot slopes 7% east to west with minimal north-south elevation change. Sheet flow design with flowline splitting to sideyard and driveway.
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Second Wapello Street Drainage Plan - Existing Conditions and Proposed Design
Our second drainage plan for a Wapello Street property in Altadena. Looking at the existing topography with an excavated house pad, downslope site, and existing pool to work around.
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Driving Through Altadena After the Fire - Seeing First-hand What We're Building From
A drive through Altadena to see the aftermath of the fire, and a first look at a project we're engineering - drainage plans and hydrology report for a hillside residential rebuild.
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W Mariposa Drainage Plan - From Existing Conditions to Final Design
How we designed a drainage plan for an Altadena fire rebuild, starting with existing survey data, tying into neighbor elevations, and setting up flowlines to gravity drain to the street.
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Altadena Fire Rebuild Drainage Plans
An Altadena fire rebuild drainage plan for a lot with a 10ft front-to-back drop and existing pool. We raise the house, re-grade the driveway, and add rain gardens to keep post-development Q similar to pre-fire levels.
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Altadena Fire Rebuild Sheet Flow
We are taking over for another Civil Engineer to bring construction costs down on some Altadena fire rebuild drainage plans. This particular lot we were able to sheet flow the entire property.
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Changing Drainage Pattern to Remove Sump Pump in Altadena
We have another Altadena drainage plan where the goal was to not use a stormwater sump pump. The way the lot sits the existing stormwater used to drain all from the top of curb at the street to the rear of the property.
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Altadena Fire Rebuild Manufactured Homes
Our next Altadena drainage plan is for a lot with manufactured homes, consisting of basically two ADU's. With the way this lot slopes and two smaller, separate structures, we are trying to save as much on construction costs as possible.
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Altadena Fire Rebuild Drainage Plans Continue to Go Out
A bit of back and forth still with LA County with our creative solutions to getting Altadena Drainage plans approved. Plan check wanted some minor modifications which is fair enough to bring the plastic lined rain gardens 5 feet off the property lines.
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Altadena Drainage Plans Being Approved
Its been an experience, but we are finally getting the latest batch of Altadena drainage plans approved by LA County. Our technique is to keep the existing drainage pattern so we don't have to install stormwater sump pumps.
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Altadena Multi-Unit Fire Rebuild Drainage Plans
This is our first sideways lot in Altadena, with the entrance on the West side and the topography slopes North to South. The goal is to drain as much stormwater to the street as possible using gravity.
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Altadena Fire Rebuild Drainage Plans - Insurance Question
Going through plan checks and getting the current requirements back in a correction, one of the projects had their insurance ask what code LA County is using to require drainage plans on some lots, and not on others.
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Drainage Plans in Altadena Fire Rebuild
This Altadena Drainage Plan is a corner lot fire rebuild. The proposed house sits in a similar location but we need to adjust the existing contours to keep 5% slope 10 feet from the structure at the top.
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Altadena Drainage Plans with Lined Rain Garden
We have another longer lot Altadena Fire Rebuild Drainage Plan. This lot, the front yard doesn't slope as heavily as the previous ones we have seen, which allows more room to slightly regrade the contours.
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Drainage Design Models in Altadena
LA County wants us to show earthwork numbers for the difference between the existing and proposed soil. Showing the contours in a 3d orbit view always looks interesting and a quick way to tell if the model is looking good or not.
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Altadena Drainage Plans
Any lot that sits on the North side of the block or sideways in Altadena is likely going to require drainage plans. Some South lots might require drainage plans as well.
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First Altadena Like for Like into Plancheck
Our first Altadena rebuild like for like project was pretty smooth. The idea was that the proposed house would be in nearly the same footprint as the existing now gone house.
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