Case Study

ADOT I-10
Early Road to I-8

How Hohokam pottery traditions became the blueprint for culturally meaningful highway infrastructure along Interstate 10 in Arizona.

Infrastructure Custom Art Motif DOT Project Arizona Completed 2019
Client ADOT
Project Type Highway Infrastructure
Pattern Style Hohokam Art Motif
Completed 2019
The Challenge

Infrastructure as Cultural Expression

The ADOT I-10 Early Road to I-8 project presented a rare opportunity: transform standard highway infrastructure into something that genuinely honors the cultural heritage of its region.

The design team faced the challenge of creating concrete surfaces that served their structural purpose while reflecting the artistic legacy of the Hohokam people — one of the Southwest's most significant ancient civilizations, whose pottery traditions are among the most recognized in North American archaeology.

The key requirement: cultural authenticity. Multiple stakeholder groups — including the Gila River Indian Communities — needed to be engaged throughout the design process to ensure the representations were respectful, accurate, and meaningful.

ADOT I-10 Hohokam pottery formliner concrete wall, Casa Grande Arizona
I-10 Corridor — Casa Grande to Jimmie Kerr Blvd
Design Inspiration

Rooted in Hohokam Tradition

Drawing directly from pottery discovered at the nearby Casa Grande Ruins National Monument, the design team worked to capture the defining characteristics of Hohokam artistic tradition — translating them from ceramic vessels into large-scale concrete relief at highway scale.

Each motif was carefully researched and reviewed with cultural stakeholders to ensure the designs honored their origin rather than merely referencing it.

Spiral Patterns

Intricate spirals drawn from traditional Hohokam ceramic decoration, scaled for highway viewing distances.

Water Designs

Flowing line patterns representing water — a central symbol in desert culture where water is survival.

Geometric Motifs

Repeating geometric compositions that mirror the structure and precision of original Hohokam pottery work.

Storytelling Elements

Cultural narratives embedded into the wall design, turning the highway corridor into a linear journey through history.

How It Was Made

The Process

A research-driven, community-collaborative approach — from historical study to finished concrete — ensured cultural integrity at every step.

01
Historical Research

Deep study of Hohokam pottery patterns and their cultural significance, anchored by artifacts at Casa Grande Ruins National Monument.

02
Stakeholder Review

Multiple design reviews with ADOT, the City of Casa Grande, and the Gila River Indian Communities to validate cultural accuracy and respect.

03
Pattern Adaptation

Pottery motifs scaled and adapted for large-format concrete application — maintaining artistic integrity while engineering for highway viewing.

04
Formwork Creation

Spec Formliners engineered custom form liners to precisely translate the intricate designs into durable, repeatable concrete infrastructure.

ADOT I-10 completed Hohokam formliner concrete wall — full elevation
Completed I-10 corridor wall — Hohokam relief concrete, Casa Grande, AZ
Technical Specifications

Project Details

Project Name
I-10 Early Road to I-8
Client
Arizona Dept. of Transportation (ADOT)
Location
I-10, Casa Grande to Jimmie Kerr Blvd
Completed
2019
Pattern Type
Custom Art Motif — Hohokam Pottery
Design Elements
Spirals, Water Flow, Geometric Motifs
Project Partners

Key Collaborators

Project Team
Manufacturer Spec Formliners, Inc.
Landscape Architect Wheat Design Group
Contractor Ames Construction
Stakeholders ADOT, City of Casa Grande, Gila River Indian Communities
Technical Highlights
  • Custom liners engineered for precise depth variation to achieve the desired visual impact at highway speeds
  • Patterns scaled for moving viewpoints — legible and striking from a vehicle at full speed
  • Weather-resistant concrete finish engineered for decades of performance with minimal maintenance
Outcomes

Results & Impact

The ADOT I-10 project delivered measurable benefits that go well beyond the structural — proving that infrastructure investment can carry lasting cultural value.

Cultural Preservation

Hohokam artistic traditions kept visible and relevant in a contemporary public context, seen daily by thousands of travelers.

Community Pride

Local residents and the Gila River Indian Communities see their heritage celebrated and honored within public infrastructure.

Enhanced Travel Experience

What could have been ordinary highway walls now provide visual interest and cultural education for every driver passing through.

Landmark Creation

The distinctive concrete designs serve as regional landmarks, giving the I-10 corridor a unique sense of place and identity.

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