Case Study: Securing Sacramento’s American River Bridge Rehabilitation Project: How Jatagan Prevented 2,194 Intrusion Attempts With Zero Client Loss

[Granite Construction’s project at the American River Bridge. Source: Business Wire]

Table of Contents

1. Overview of the American River Bridge Rehabilitation Project
2. Security Challenges on an Active Infrastructure Site
3. Jatagan’s Layered Security Strategy
4. Technologies Deployed on the Project
5. Results: 2,194 Intrusion Attempts Prevented
6. Why Dynamic Perimeter Security Matters
7. Service Areas
8. Frequently Asked Questions

1. Overview

Large-scale infrastructure projects present unique security challenges. Active construction zones evolve constantly, equipment and materials shift daily, and exposed perimeters create opportunities for theft, trespassing, vandalism, and liability incidents.

That was exactly the reality at the American River Bridge Rehabilitation Project in Sacramento, California — a major Caltrans infrastructure initiative led by American River Constructors (ARC), a joint venture between Granite Construction and California Engineering Contractors. The project involves replacing the bridge deck, widening the structure, improving scour protection, and adding a Class I bike and pedestrian path connecting to Sacramento’s trail system.

Over a 40-month deployment from 2023 through April 2026, Jatagan Security provided layered construction site security across this active bridge rehabilitation corridor.

The result:

• 2,194 intrusion attempts detected
• 0 successful intrusions
• 0 client losses

2. Overview of the American River Bridge Rehabilitation Project

The American River Bridge Rehabilitation Project is one of the Sacramento region’s most significant active transportation and bridge rehabilitation projects. Located along State Route 51 (Business 80 / Capital City Freeway), the bridge carries substantial commuter traffic across the American River daily.

The rehabilitation effort includes:

• Bridge deck replacement
• Structural rehabilitation
• Bridge widening
• Scour mitigation protection
• Traffic-shift accommodations during phased construction
• A new Class I bike and pedestrian connection

Granite Construction noted that the project includes staged bridge deck replacement and widening work to maintain traffic flow during construction.

Projects of this scale create highly dynamic security conditions that traditional static guard solutions often struggle to manage efficiently.

3. Security Challenges on an Active Infrastructure Site

Infrastructure and bridge projects are among the most difficult environments to secure.

At the American River Bridge site, security risks included:

Construction projects involving public infrastructure also face increased exposure to trespassing, unauthorized access, copper theft, and vandalism.

Because the site evolved continuously throughout the project lifecycle, security infrastructure needed to move just as quickly.

4. Jatagan’s Layered Security Strategy

To secure the site effectively, Jatagan deployed a layered security approach combining mobile surveillance technology, powerful deterrence systems, dynamic perimeter realignment, and AI-augmented human detecting and monitoring.

Rather than relying on a fixed security layout, Jatagan frequently repositioned surveillance assets as the project evolved through different construction phases.

This adaptive approach enabled continuous coverage despite changing traffic shifts, work zones, staging areas, and construction sequencing.

The strategy included:

Solar Mobile Guard™ Deployment

Jatagan deployed Solar Mobile Guard™ units to provide rapid-deployment live video surveillance across active construction zones.

These units delivered:

• Autonomous solar-powered operation
• High-visibility deterrence
• Flexible relocation capabilities
• Wide-area site coverage
• Remote live video monitoring

Because the units were mobile, Jatagan could reposition coverage as site conditions changed.

Solar Pole Guard™ Coverage

Solar Pole Guard™ systems provided elevated monitoring and perimeter visibility across critical access areas.

These deployments enhanced:

• Long-range site visibility
• Detection coverage
• Perimeter deterrence
• Monitoring of changing access routes

The elevated surveillance approach was particularly effective for large open construction environments.

Long Range Warning System

Jatagan also deployed long-range warning technology capable of issuing powerful strobe lights, sirens, voice-down warnings before unauthorized individuals reached sensitive areas.

This proactive deterrence strategy helped interrupt intrusion attempts before escalation occurred.

AI-Augmented HDM℠ (Human Detecting & Monitoring)

Jatagan’s AI-Augmented HDM℠ platform combined human detecting and monitoring in parallel with advanced AI to improve threat detection and reduce missed intrusion attempts.

This technology helped identify suspicious activity while improving response accuracy across the active project environment.

5. Results: 2,194 Intrusion Attempts Prevented

Over the course of the deployment:

The project demonstrates how proactive construction site security can significantly reduce operational risk on active infrastructure projects.

Instead of responding after incidents occurred, Jatagan’s layered security model focused on:

• Early detection by AI and human
• Active deterrence
• Adaptive coverage
• Rapid perimeter realignment
• Continuous monitoring

This approach helped maintain uninterrupted protection despite constant changes across the project footprint.

6. Why Dynamic Perimeter Security Matters

Many traditional construction site security programs fail because they are static.

Infrastructure projects are not static.

As projects evolve, access points shift, staging areas relocate, equipment moves, and new vulnerabilities emerge.

That’s why dynamic perimeter realignment became a critical part of the security strategy at the American River Bridge project.

Security systems needed to evolve alongside construction operations — not remain fixed while the site changed around them.

For large construction firms, infrastructure contractors, and critical infrastructure operators, adaptive security is becoming increasingly important as projects grow more complex.

7. Jatagan Security Service Areas

Jatagan Security provides construction site security, mobile surveillance, AI-augmented and human and monitoring, and live video surveillance solutions across California and beyond.

Service areas include:

• Sacramento
• San Francisco Bay Area
• San Jose
• Oakland
• Fresno
• Stockton
• Modesto
• Los Angeles
• Orange County
• Inland Empire
• Central Valley
• Northern California
• Southern California

Jatagan supports:

• Bridge rehabilitation projects
• Highway construction
• Heavy civil construction
• Infrastructure projects
• Utility construction
• Transportation projects
• Industrial sites
• Commercial construction

8. Frequently Asked Questions

Q1. What is construction site live video surveillance?

Construction site live video surveillance uses remotely monitored camera systems to detect, deter, and document unauthorized activity on active job sites.

Q2. What is a Solar Mobile Guard™ unit?

Solar Mobile Guard™ is a mobile, solar-powered surveillance platform designed for rapid deployment on active construction and infrastructure sites.

Q3. Why is layered security important for construction projects?

Layered security combines multiple technologies and monitoring methods to improve detection, deterrence, and response capabilities.

Q4. What is AI-Augmented HDM℠?

AI-Augmented HDM℠ stands for Human Detecting & Monitoring — a system combining advanced AI detection with concurrent human detecting and monitoring. The goal is to eliminate missed threats due to AI limitations.

Q5. How does dynamic perimeter realignment work?

Dynamic perimeter realignment involves repositioning security assets as project phases, work zones, and site conditions evolve.

Q6. Why are infrastructure projects difficult to secure?

Infrastructure projects often involve large open perimeters, changing access points, valuable materials, public exposure, and evolving construction phases.