# Case Study: As-Built Laser Scan for New Road & Bridge Construction

**By My Store Admin** · 2025-07-29

_Using the RS30 for fast, detailed data capture under challenging conditions_

### **Client Brief**

We were recently brought in on a **road and bridge construction project** nearing completion. The client requested a **high-detail as-built survey** of the partially finished build for several reasons:

-   To **verify current construction accuracy**
    
-   To **monitor the build process** over time
    
-   To check **dimensional tolerances** ahead of future works in the surrounding area.  
    

They didn’t just want a standard drawing — they wanted a full visual dataset that their **in-house team could interrogate, measure, and extract from** as needed.

  

### **The Challenge**

### ![](https://cdn.shopify.com/s/files/1/0966/9283/0582/files/a0ef0f_bc103b48e43b43798fe8d9fbb2ad3f03_mv2.png?v=1770839154)

Conditions on site weren’t ideal.

❌ **Drone surveying was ruled out** due to overhead lines and poor weather.

  

❌ A traditional survey using GPS or EDM would have taken 2–3 days — and still only produced **2D outputs** with **zero visual reference** for context.

  

We needed a faster, smarter solution.

### **Our Approach**

We deployed the **CHCNAV RS30** — a mobile laser scanning system with integrated GNSS and a 5MP camera — ideal for high-detail, ground-level data capture.

Here’s how the process broke down:

**Scanning time:** Just a few hours **Processing time (via CoPre):** Completed within one working day **Deliverables:** A clean, coordinated dataset, processed and packaged for the client’s in-house use — including **3D point cloud**, **high-resolution imagery**, and **full as-built verification data.**

### **Why It Worked**

The RS30 was the right tool for the job:

-   It worked in **tight environments** and **under poor weather**, where drones couldn’t.
    
-   It provided **rich, visual 3D data**, not just flat linework.
    
-   The client didn’t need to wait days — the **entire workflow was wrapped up within 24 hours** post-capture.
    

And importantly: the **data was theirs** to use as they saw fit.

### **Outcome**

By using the RS30, we saved the client:

-   **Time** — cutting a multi-day job down to a single day of processing
    
-   **Headaches** — avoiding scheduling around drones or survey constraints
    
-   **Limitations** — giving them more than just drawings, but a **versatile, measurable, visual dataset**  
    

This is exactly where mobile scanning shines — bridging the gap between construction, verification, and future planning with one streamlined workflow.

Interested in what this workflow could look like on your site?

Get in touch. We don’t just sell the tech — we use it to solve real problems, fast.

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> Source: [PQS Tech](https://pqstech.com/blogs/news/case-study-as-built-laser-scan-for-new-road-bridge-construction)