Toro Creek Temporary Bridge
Bridges · 2026
Project details
A modular, rapid-deployment steel girder bridge designed to restore access over a storm-ravaged creek despite severe weight restrictions on the approach route.

Civil, Structural, and Architectural Design with a Builder's Perspective
Jackson & Sands Engineering delivers civil, structural, and architectural design services from offices in Grass Valley and Chico, California. Founded by Sean Jackson and Frank Sands, the practice combines over 30 years of combined design and hands-on construction experience to serve owners, AEC professionals, and government agencies. Services span residential and commercial structures, affordable housing, bridge design, retaining walls, and municipal on-call work for 14-plus cities and counties. A builder's perspective underpins every project, ensuring designs are both technically sound and practically constructable.
Sean JacksonPrincipal / Co-Founder
Frank SandsPrincipal / Co-Founder
Provides comprehensive structural and architectural design plans for residential, commercial, and industrial projects.
Comprehensive structural and architectural design for residential properties and additions.
Structural engineering and planning for commercial facilities.
Engineering services for industrial developments and facilities.
Delivers construction engineering support to ensure site safety, constructability, and regulatory compliance.
Temporary structure engineering to support construction loads.
Technical analysis of structural and construction claims.
Calculations to ensure anchorage complies with seismic standards.
Designs specialized civil infrastructure elements including bridges, retaining walls, and specialized fill.
Structural design for soil retention and stabilization.
Engineering for vehicular, pedestrian, and temporary modular bridges.
Engineering and rehabilitation plans for timber pile systems.
Lightweight fill solutions for roadway subgrade and slope stabilization.
Assists public works departments and municipalities with on-call engineering and structural assessments.
Site assessment and spatial planning on an on-call basis.
Assessments and upgrades to ensure compliance with ADA regulations.
Structural engineering and rehabilitation plans for parking structures.
Structural engineering and anchorage for sculptures and public art installations.
Delivers municipal on-call engineering services and design solutions for tribal and affordable housing projects.
Structural and planning services for native and tribal community housing.
Engineering and architectural plans for multi-family affordable housing projects.
On-call engineering support for cities and counties.
Engineers robust structural solutions and compliance assessments for industrial systems and equipment.
Structural design and anchorage for electrical and high-voltage housing.
Structural foundation and engineering for PEMB waste and recycling sites.
Structural calculation and design of equipment anchoring to meet OSHA and seismic codes.
Designs Accessory Dwelling Units to maximize space while ensuring structural and local regulatory compliance.
Residential · Affordable Housing · Commercial · Industrial · Government · Bridges · Highways & Roads · Stormwater & Flood Control
Bridges · 2026
A modular, rapid-deployment steel girder bridge designed to restore access over a storm-ravaged creek despite severe weight restrictions on the approach route.
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A 1,200 square foot Accessory Dwelling Unit utilizing seamless indoor-outdoor living and heavy timber design.