Riparian Mitigation in East Austin TX | BPI Partners Inc.

BPI Partners completed a comprehensive riparian mitigation project in East Austin, transforming an eroded, invasive-choked stream corridor into a stable, compliant, and fully functional riparian buffer. This video walks through Phase 1, Phase 2, and Phase 3 of the project, including Grade Control Structure (GCS) installation, pollutant filtration improvements, stormwater velocity management, and native habitat development.

PHASE 1: Initial Site Conditions

The project began with a detailed site assessment to identify environmental and hydrological risks within a TCEQ-regulated Critical Water Quality Zone.
Work included:

• Identifying invasive vegetation and overgrowth
• Assessing unstable streambanks and unmanaged flow
• Defining high-water mark elevations for design accuracy
• Evaluating sediment types and pollutant pathways

This baseline assessment ensured the riparian mitigation plan aligned with both ecological and regulatory requirements.

PHASE 2: Grade Control Structure Installation (GCS)

To stabilize the channel, prevent incision, and improve stormwater performance, BPI Partners installed engineered Grade Control Structures:
• Install GCS to regulate stream elevation
• Utilize high water mark elevations for optimized flow distribution
• Reduce streambank erosion and channel degradation
• Support flood attenuation and stormwater stability

GCS are essential components of riparian mitigation projects, improving long-term geomorphic and hydrologic performance.

Water Quality + Habitat Foundations

Following stabilization, BPI Partners enhanced the water quality and ecological function of the site with targeted mitigation practices:
• Improve pollutant filtration (sediment, nutrients, metals)
• Support natural denitrification in riparian soils
• Prepare the channel for native vegetative systems
• Enhance long-term hydrological and ecological performance
• Provide food and shelter for wildlife habitat

These improvements form the foundation of long-term riparian buffer success.

PHASE 3: Habitat + Restoration Results

The final phase focused on establishing stable, native vegetation and habitat connectivity:
• Restore native vegetation to stabilize streambanks
• Filter pollutants before they reach waterways
• Reduce erosion and protect downstream infrastructure
• Reconnect wildlife habitat corridors
• Improve overall water quality and long-term watershed health

The completed riparian mitigation project now performs as a high-functioning green infrastructure system.

WHY RIPARIAN MITIGATION MATTERS IN CENTRAL TEXAS

Riparian mitigation is one of the most effective, cost-efficient strategies for improving water quality, reducing erosion, protecting infrastructure, and meeting regulatory requirements for new developments. In rapidly growing regions like Central Texas, these systems play a critical role in watershed health and stormwater compliance.

ABOUT BPI PARTNERS

BPI Partners is a leading environmental contractor specializing in riparian mitigation, erosion control, water quality management, and ecological restoration. Our work integrates engineering, regulatory compliance, environmental science, and construction expertise to deliver turnkey solutions across Central Texas.

For consultations or project inquiries:
(512) 288-5522
bpipartners.com

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