Aquarium of the Pacific Expansion: Construction Innovations Behind the Pacific Visions Project

Breaking Down the Pacific Visions Expansion: Scope and Scale

The Aquarium of the Pacific, located in Long Beach, California, ranks among the largest and most-visited aquariums in the United States. In early 2017 the institution broke ground on Pacific Visions, its first major expansion project since opening its doors. This 29,000-square-foot, two-story structure represents a significant undertaking in institutional construction, requiring careful coordination between the aquarium, design architects, structural engineers, and a general contractor capable of delivering a complex public facility while the existing aquarium remained fully operational.

San Francisco-based architecture and design firm EHDD led the design phase, while Clark Construction served as the general contractor. The project site sits adjacent to the existing aquarium building, which introduced logistics challenges around maintaining public access, managing construction traffic, and protecting live animal habitats during excavation and structural work. The total project budget reached $53 million, with $42 million secured at groundbreaking from a combination of city matching grants, corporate sponsorships, and private donations.

The expansion includes several major components:

• The Honda Pacific Visions Theater: a 300-seat immersive venue with a 32-foot-tall, 130-foot-long, 180-degree arc digital projection wall and a 30-foot-diameter floor projection disc
• Dr. Allen and Charlotte Ginsburg Entrance and front pavilion serving as the new visitor gateway
• Changing exhibit gallery with live animal habitats integrated into the structural layout
• Art gallery and orientation gallery for pre-exhibit education and wayfinding
• Outdoor terrace space for events and educational programming

The construction team had to phase the build carefully. Every foundation pour, steel erection sequence, and glass panel installation had to account for the adjacent aquarium operations. Vibration monitoring during pile driving and concrete work protected sensitive marine life in existing exhibits. This level of coordination is common in institutional construction projects, where steel curtain wall systems and complex structural frames must be assembled within tight site constraints without disrupting public-facing operations.

Structural and Envelope Innovations in the Pacific Visions Design

The Biomorphic Steel Frame

EHDD designed Pacific Visions as a biomorphic structure, meaning the building form draws inspiration from organic shapes found in nature. This design approach required a steel frame that could accommodate curved sightlines, sweeping interior volumes, and the structural loads of a 300-seat theater with a 32-foot-tall projection wall. The steel superstructure had to support not only typical roof and floor loads but also the specialized rigging and equipment loads associated with digital projection systems, theatrical lighting, and interactive exhibit platforms.

The structural engineering team specified steel moment frames and braced frame systems to resist lateral loads from wind and seismic activity. California seismic design criteria demanded particular attention, given the building’s location in a high-risk zone. Connections between beams and columns were designed with welded and bolted assemblies that could accommodate the organic geometry while maintaining code-required strength and ductility.

The Glass Curtain Wall: 800 Panels of Precision

The most visually striking feature of Pacific Visions is its facade, comprising more than 800 non-reflective glass panels covering 18,000 square feet. This glass curtain wall system was selected to evoke the depth and mystery of the ocean, with the transparency of the panels allowing natural light to penetrate deep into the interior spaces while offering visitors views of the surrounding Long Beach waterfront.

Key specifications for the curtain wall system included:

• Non-reflective glass coating to reduce glare and improve visual clarity for both visitors inside and passersby outside
• Thermally broken aluminum framing to meet energy code requirements for commercial building envelopes
• Structural silicone glazing to create a seamless exterior appearance without exposed caps or covers
• Wind load resistance rated for coastal exposure conditions
• Integration with the building’s rainwater management system through concealed gutters and downspouts within the mullion assembly

Each glass panel required custom fabrication based on its position in the facade geometry. The installation sequence followed a strict schedule tied to the steel erection timeline, ensuring that weathertight enclosure was achieved as quickly as possible to allow interior finish work to proceed.

Building Envelope Performance Targets

The project pursued LEED Gold certification, which imposed specific thermal performance requirements on the building envelope. The curtain wall system had to achieve specified U-values and solar heat gain coefficients while maintaining the visual transparency that the design required. The design team used modern building envelope technology to balance thermal performance with aesthetic goals, specifying low-E coatings and insulated glazing units that reduced heat transfer without compromising the clarity of the ocean-inspired facade.

Sustainable Building Systems for Public Aquarium Facilities

Pacific Visions was designed from the outset as a sustainable structure targeting LEED Gold certification. The sustainability strategy encompassed energy performance, water efficiency, material selection, and indoor environmental quality.

Energy Performance and Mechanical Systems

The aquarium’s existing mechanical systems served as the baseline for the expansion’s HVAC design. The new wing required dedicated heating, ventilation, and air conditioning capacity for the theater, gallery spaces, and live animal habitats, each with different temperature and humidity requirements. The theater space presented the greatest HVAC challenge, given the heat loads from digital projection equipment, theatrical lighting, and a seated audience of 300 people.

The mechanical design team addressed these challenges through:

• High-efficiency variable refrigerant flow (VRF) systems for zone-level temperature control
• Demand-controlled ventilation using carbon dioxide sensors to adjust fresh air supply based on occupancy
• Energy recovery ventilators that capture heat from exhaust air and transfer it to incoming fresh air
• LED lighting throughout, reducing both energy consumption and cooling loads from heat-generating fixtures
• Building automation system integration for real-time monitoring and optimization of all mechanical equipment

Material Selection and Construction Waste Management

LEED Gold certification requires specific material sourcing and waste diversion targets. The construction team implemented a comprehensive materials management plan that included:

1. Sourcing at least 20 percent of building materials from regional manufacturers within 500 miles of the project site
2. Using materials with recycled content, including steel with minimum 25 percent post-consumer recycled content
3. Specifying low-VOC paints, adhesives, sealants, and flooring to support indoor air quality targets
4. Diverting at least 75 percent of construction waste from landfill through recycling and salvage programs
5. Using certified wood products from Forest Stewardship Council (FSC)-certified sources

These material strategies align with broader trends in sustainable construction, as described in resources on national green building standards for institutional projects.

Water Conservation and Site Sustainability

The Pacific Visions expansion incorporated water-efficient fixtures throughout, including low-flow restroom fixtures and water-saving equipment in the live animal habitat areas. The landscaping plan specified drought-tolerant native plant species suitable for Southern California’s Mediterranean climate, reducing irrigation demand. Stormwater management features included permeable surfaces and retention systems designed to filter runoff before it entered the municipal drainage system.

Lessons for Construction Professionals from the Pacific Visions Project

Phased Construction Around Active Operations

The most instructive aspect of the Pacific Visions project for construction professionals lies in the phasing strategy. The main aquarium building remained operational throughout the construction period, meaning that every activity from site preparation to final finishes had to be coordinated around public access hours, special events, and the daily needs of live animal care staff. This required the general contractor to implement strict laydown area management, noise and vibration controls, and pedestrian circulation planning that kept visitors safe and unaware of active construction zones.

Key phasing strategies included:

• Constructing temporary barriers and covered walkways to separate public paths from construction zones
• Scheduling high-noise activities during off-peak hours or overnight when the aquarium was closed
• Using vibration monitoring instruments on existing building structures and exhibit tanks
• Coordinating deliveries and crane operations to avoid blocking public access routes
• Sequencing utility tie-ins during planned aquarium closures to minimize disruption

Digital Coordination and Specification Management

Projects of this complexity rely heavily on digital coordination tools. The project team used building information modeling (BIM) to resolve clashes between structural steel, mechanical ductwork, electrical conduits, and the specialized theatrical rigging systems before any material was ordered. The curtain wall alone required coordinated shop drawings that accounted for the unique geometry of each of the 800-plus glass panels, with fabrication tolerances measured in millimeters.

Construction teams working on complex institutional projects can benefit from digital construction specification software that streamlines the flow of material specifications, shop drawings, and submittal approvals between the design team, contractor, and subcontractors.

Project Budget and Fundraising Realities

The $53 million budget for Pacific Visions was funded through a combination of public and private sources. The City of Long Beach provided a $15 million matching grant, and additional support came from corporate sponsors including American Honda Motor Company, along with private donations. At the groundbreaking ceremony, the aquarium had secured $42 million of the total cost, demonstrating that institutional construction projects often proceed in phases as fundraising continues alongside construction.

This funding structure carries implications for construction scheduling and cash flow management. General contractors on publicly funded or philanthropically supported projects must maintain flexibility in their work schedules, as funding tranches may be released at different points in the construction timeline. Payment application schedules, lien waiver requirements, and progress reporting all need to accommodate the unique compliance requirements of public matching grants and donor-restricted funds.

Key Project Metrics Summary

The Pacific Visions expansion at the Aquarium of the Pacific demonstrates how complex institutional construction projects can deliver iconic architecture while maintaining strict sustainability targets, phased construction around active operations, and the budget flexibility required for mixed public-private funding models. For construction professionals, the project offers a case study in curtain wall engineering, steel frame coordination, and the value of digital specification tools in managing complex building systems across multiple trades and subcontractor scopes.