SR9 John Liner McGarigle Roundabout

Complex Infrastructure Upgrades

SRV Construction delivered comprehensive site work and paving to modernize the SR9 intersection in Arlington. Upgrading major local intersections comes with inherent obstacles that can derail timelines and budgets. We know how to navigate these challenges to ensure your project stays on track and strictly adheres to safety protocols.

Project Overview

• The Client: The City of Sedro-Woolley is a government entity specializing in public works engineering and infrastructure development.

• The Challenge: The City of Sedro-Woolley faced a highly complex intersection upgrade that was affecting its ability to maintain safe and efficient traffic flow.

• The Solution: We delivered expert roundabout construction, leveraging our heavy civil construction expertise to address their unique needs.

• The Result: Through our tailored approach, the City of Sedro-Woolley achieved 100% completion ahead of schedule, demonstrating measurable improvements in community safety and traffic management.

The Client

The City of Sedro-Woolley operates in the government sector, specializing in public works engineering and infrastructure development. With a commitment to public safety, they needed a trusted partner who understood the complexities of local road improvements in Washington and could deliver results aligned with their strategic objectives. Their commitment to efficiency and community safety made them an ideal fit for our collaborative approach.

The Challenge

When the City of Sedro-Woolley approached us, they were struggling with a highly complex intersection upgrade. Upgrading major local intersections presents inherent obstacles, and our team expertly navigated three unique challenges throughout the project lifecycle. These challenges prevented them from maintaining smooth traffic patterns, creating an urgent need for a reliable, expert solution that could deliver results without disrupting their operations.

• Traffic management: The intersection required major upgrades without causing massive traffic disruptions for residents and commercial drivers.

• Stakeholder coordination: The project demanded constant communication with multiple stakeholders, including city officials and utility companies, to ensure timely completion.

• Active site finishing: Crews needed to address crucial punch-list items — such as lighting installations and permanent paint applications — while safely maintaining continuous traffic flow through partial lane closures.
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The Solution

Our team developed a customized strategy designed specifically for the City of Sedro-Woolley. SRV Construction (based in Oak Harbor, WA) specializes in site development, infrastructure, and heavy civil construction, serving commercial and government clients primarily in Washington State and the Pacific Northwest.

Discovery and Planning

We began with a comprehensive assessment of their current situation, identifying key opportunities and potential obstacles. This allowed us to create a detailed project plan with clear milestones and deliverables to ensure strict compliance with safety standards.

Implementation

Leveraging our expertise in utility construction and road improvements, we deployed a highly coordinated construction plan. Our approach included:

• SR9 roundabout construction: We built a new roundabout to replace the existing intersection at SR9 and John Liner Road, a project that required highly coordinated lane closures from June to October.

• Traffic signal removal: We safely removed a temporary traffic control signal at the intersection of SR20 and Reed Street, carefully managing morning commuter delays.

• Site modernization: We handled extensive paving operations, built brand-new ADA-compliant sidewalks, and installed upgraded lighting and permanent flashing beacons to maximize visibility.

Ongoing Support

Throughout the project, we maintained transparent communication with regular progress updates. Our team remained flexible, adapting our approach as needed to ensure optimal outcomes. When planning complex infrastructure upgrades, we recommend always securing local permits early and establishing a single point of contact to keep public works projects on track (link to internal project management guide).

The Results

Our partnership with the City of Sedro-Woolley delivered measurable success:

• Early completion: We achieved 100% completion of both paving and sidewalks ahead of schedule.

• Minimized disruption: The main intersection officially reopened to traffic on October first, allowing commuters to utilize SR9 and McGarigle Road safely.

• Budget adherence: We successfully executed the $2,300,000 contract while adhering strictly to the budget and our documented safety protocols.

These outcomes exceeded initial projections and positioned the Sedro-Woolley intersection project as a prime example of expert public works execution.

Summary

The successful completion of the SR9 John Liner McGarigle project stands as a testament to effective planning and professional execution. SRV Construction delivered a safer and more efficient intersection for the community. By overcoming logistical challenges and prioritizing public safety, this infrastructure investment will serve the Arlington and Sedro-Woolley areas for decades to come.