---
title: AT Case Study - Slab Leveling at a Harley-Davidson Dealership
description: PURLevel successfully stabilizes and lifts Outpost Harley-Davidson's concrete floor after water damage using AP430 polyurethane foam injection.
---

[Alchatek Infrastructure Repair Blog: Polyurethane Leak Seal Injection, Soil Stabilization, Concrete Leveling ](https://info.alchatek.com/blog)

# [AT Case Study - Slab Leveling at a Harley-Davidson Dealership](https://info.alchatek.com/blog/at-case-study-slab-leveling-at-a-harley-davidson-dealership)

 Written by [Ammad Hashmi](https://info.alchatek.com/blog/author/ammad-hashmi) | Jul 30, 2025 2:00:00 PM

## Initial Assessment

The team at [PURLevel](https://www.purlevel.com/) was contacted regarding significant floor settlement issues at Outpost Harley-Davidson in Pueblo, Colorado, where a water pipe rupture had resulted in concrete movement and void spaces beneath the floor. The affected areas showed uneven surfaces with depressions ranging from 0.25 to 3 inches, creating hazards for both foot and equipment traffic.

## Proposed Solution

[AP Lift 430](https://alchatek.com/geotech/polyurethane-concrete-leveling-products/concrete-slab-jacking-foam-ap-lift-430/) polyurethane foam was selected for this project due to its excellent void-filling and lifting capabilities. With its 22x expansion capability and 7,200 psf compressive strength, this material is ideal for commercial floors supporting heavy equipment like that found in a motorcycle dealership.

## Procedures

1. **Site Preparation**
   
     - The affected area was thoroughly inspected to determine the full extent of damage.
     - A 5'x5' grid pattern was marked across the entire interior floor area.
2. **Grid Injection**
   
     - Strategically placed injection points were established following the grid pattern.
     - Holes were drilled through the concrete slab at each injection point.
     - Polyurethane foam was systematically injected to fill voids beneath the slab.
3. **Lift and Stabilization**
   
     - After initial void filling, additional injections were performed to lift the sunken areas gradually.
     - An incremental lifting approach was used to prevent concrete cracking.
     - Areas requiring significant lift (up to 3 inches) received multiple injection passes.
     - Levels were continuously monitored to ensure even lifting across the floor surface.

## Results

The project successfully stabilized the Outpost Harley-Davidson floor and restored it to its proper level. The comprehensive void-filling addressed the underlying instability caused by the water pipe rupture, providing a solid foundation for the concrete slab. Success was evident in the restored functionality of the dealership floor and the elimination of safety hazards posed by the uneven surface.

### Want more information on leveling concrete slabs?

[View full post](https://info.alchatek.com/blog/at-case-study-slab-leveling-at-a-harley-davidson-dealership)

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