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Alpha Structural Inc. has been one of Southern California’s go-to companies for hillside and foundation repairs for the last three decades. They’ve also been a resource for funny yet unsettling images of physical deterioration in homes and buildings. 

The Alpha Structural Imgur page is a gift that keeps on giving. So, we’ve compiled a new collection featuring cracked walls, foundation issues, and entire houses on the brink of toppling. 

Scroll through this list and see how these photos compare to the previous ones we’ve published.

#1

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This wall, intended to retain the hillside, consists only of framing and stucco, lacking the necessary elements for a retaining wall such as rebar, a proper footing, and concrete to provide adequate support for retaining soil.

As a result, the wall is now failing.

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#2

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This photo from above the wall reveals the steps, which have also started to fail as they have lost the support they were resting on.

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#3

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The force of the landslide destroyed a back wall, allowing mud to find its way into almost every room. Including the bathroom… yikes.

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In our previous interview with the company, they explained the likely reason behind the crumbling houses. Apart from poor decisions during the building process, they also pinned some blame on the city’s land quality.

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“They were often built with shallow footings that are prone to sink over time. Additionally, there is a lot of expansive soil in Los Angeles, which, due to its high clay content, expands and contracts. This leads to corners or sides of a home that sink."

#4

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This chaotic framing could be mistaken for abstract art.

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#5

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These stalactites were found in a below-grade structure. Stalactites form gradually over time as water seeps through cracks in the ceiling, carrying dissolved minerals that accumulate and create these formations.

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#6

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The post-and-pier final boss.

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We also spoke with Alpha Structural representative Ben Reinhart, who detailed one of the worst homes they inspected in 1992. It was a three-story hillside home in the Playa del Rey neighborhood.

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“​​The condition of the soil supporting the home was so bad that during our assessment, we found that the home was cracking and actually moving,” he revealed.

#7

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Well, at least that statue is there to save the day. All we can say is that’s definitely something you don’t see every day.

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#8

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This is an unconventional approach to a post and pier. Using bricks in replacement of a post and pier is merely a remedial repair to fill the gap. It can temporarily hold things together, but it doesn’t address the core issue as it lacks the proper support for the home.

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#9

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You can see this wall is suffering from spall damage and the rebar has been exposed.

Spalling refers to areas of concrete that have cracked and delaminated from the underlying layer.

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Reinhart says it was the first time they had evacuated a home’s inhabitants due to the extent of structural damage. The following day, they immediately put temporary shoring in place to prevent a total collapse. 

“The complexity of the repair required, getting a large rig on a steep hillside to excavate a 55’ deepened foundation, made this one of the worst and most challenging in our long history. Let’s just say if we were on a reality TV show, this episode would’ve been a season finale,” he explained.

#10

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The landslides in Portuguese Bend—an area in Rancho Palos Verdes—have been occurring for over 30 years now. The area is notorious for its significant land movement issues.

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#11

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Another day, another landslide.

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#12

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The heavy rains triggered a series of landslides in our area, prompting numerous calls for assistance.

That TV…

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According to Sydney-based property inspector Fadi Keyrouz, not all cracks on a house’s walls are cause for concern. In an article published on LinkedIn, he identified three types of ruptures that could indicate structural failure. 

“Interior wall cracks which occur in plasterboard or gyprock, exterior wall cracks such as cracks in the surface, brickwork, or in the rendering of external walls, and cracks in foundation walls.”

#13

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This retaining wall is suffering from significant hydrostatic pressure from the groundwater in the hillside that it's supporting.

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#14

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This is going to be a massive cleanup effort.

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#15

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Last week we highlighted the significant land movement issues in Portuguese Bend. These thick concrete pavers that were ripped apart in the area are more proof of that.

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Keyrouz advises paying attention to the shapes of cracks, as well. Each one may suggest different problems. 

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“Stepped cracks tend to follow the lines of horizontal and vertical joints in buildings, such as beds of mortar between bricks or blocks, and may indicate structural movement.”

#16

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Here you can see the home is now showing other various signs of damage as well, such as misaligned doors and windows.

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#17

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A landslide crashed into this home below.

Homes situated at the lower end of a hillside raise significant concerns due to their heightened vulnerability to various issues.

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#18

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With the landslide coming down into the pool, all the pool water washed out and made a huge mess. It left not only the homeowners' backyard in disarray but also impacted neighboring properties.

Dealing with the aftermath of this rain has been horrifying for homeowners all over SoCal.

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“Vertical cracks may indicate that structural components such as bricks or blocks have failed, and so can be a sign of significant stresses within the building structure,” he wrote. 

“Cracks that are wider at the top or at the bottom may indicate that there has been foundation movement, with the direction of the widening giving an indication of the likely direction of the movement.”

#19

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The bottom of the hillside reveals more of the aftermath from the landslide, which caused damage to this home. Despite some cleanup efforts, the car sustained severe damage.

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#20

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Back in 1956, a road crew excavated sediment and dumped it on top of the ancient landslide zone. This rendered the area geologically unstable and has been causing issues to this day.

Here, we can see this concrete slab that is tearing apart due to the ongoing land shifts. As Portuguese Bend has experienced decades of extreme shifting, it has become one of the most studied landslide areas in the nation.

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#21

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This homeowner was wondering why their retaining wall was failing. Looks like we figured it out…

Instead of utilizing rebar for reinforcement, a chain link fence was used.

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Keyrouz classified these damages into three categories, depending on severity. Category three is the worst, which is likely what happened in many of these photos. 

They involve breakages ranging between 5 mm to 25 mm. Some causes include footing issues, rusting, moisture buildup in the walls, and impact damage. 

#22

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We're continuing to see numerous landslides stemming from the heavy rains earlier this year.

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#23

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This retaining wall was built with the intention of supporting the hillside; however, it is visibly failing as it was not properly built to support the load.

The weight of the hill has caused the wall to split and lean, causing shifting in the sidewalk as well.

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#24

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There is now moss covering a majority of the retaining wall and the ground. Moss grows in environments with excessive moisture and needs it to survive. Therefore, the poor drainage in this area is the perfect breeding ground for it to thrive.

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When dealing with such problems, Keyrouz advises seeking immediate professional assistance. 

“The wall may need to be inspected by a structural engineer to determine what remediation work is required. There is a possibility that a section of a wall needs to be rebuilt.

“At the very least, an inspection by a professional and a plan of action needs to be determined – and acted upon as soon as possible.”

#25

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The landslide left the house susceptible to collapse so the need for temporary shoring was imminent. This shoring was put in by another company to support the roof from total collapse.

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#26

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This home is suffering from wood rot.

Removing and replacing wood rot with new framing is crucial as it can quickly spread and compromise the structural integrity of the building.

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#27

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The failure of this wall can be attributed to improper drainage and the absence of weep holes to relieve the hydrostatic pressure.

Hydrostatic pressure refers to the force exerted by standing water against a surface. When soil surrounding an area becomes saturated with water, hydrostatic pressure builds up against the walls. This pressure can lead to cracks, bowing, and other forms of damage to structures over time.

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Problems within the structure’s foundation are also common in these photos. As John King of Illinois-based King Waterproofing & Foundation Solutions points out, usual signs include doors and windows that stick and don’t close properly. Uneven flooring and gaps between walls and ceilings are also key indicators.

#28

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The failure of this block wall is due to a combination of factors, including excessive moisture in the soil and an improper footing. Proper footings are essential as they distribute the weight of a structure evenly to prevent failure.

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#29

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It's imperative to take proactive steps, such as building a retaining wall for example, to mitigate the risk of potential landslides before they occur.

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Besides water issues and poor construction, root systems from large trees can damage a house’s foundation. For this, King offered a valuable tip. 

“It’s recommended to maintain a safe distance between trees and the foundation, and to regularly inspect and trim tree roots as necessary.”

#30

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Excessive moisture in the soil caused the failure of this pipe and board.

Additionally, the pipes were not embedded deep enough into the ground to adequately support the weight of the hillside and withstand the moisture.

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Note: this post originally had 93 images. It’s been shortened to the top 30 images based on user votes.