J. Smith & T. Muli, Inc.

Experience engineers Excellence.

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About the firm

J. Smith & T. Muli, Inc. is a civil engineering practice that specializes in solving stormwater infrastructure problems and improving communities. Drawing on extensive experience, a wealth of knowledge, and abundant resources, it delivers practical and feasible engineering solutions. Its primary area of focus is stormwater engineering, planning, designing, renovating, and managing water resources facilities ranging from storm drains and channels to levees, floodplains, lakes, ponds, and reservoirs. Senior engineers actively work on every aspect of each project, serving as day-to-day contacts and project managers to ensure efficient progression, smooth approvals, and reduced costs.

Firm type
Civil Engineering · Structural Engineering · Water / Wastewater Engineering

People

Jonis C. Smithprincipal

Timothy M. Muliprincipal

Capabilities

Stormwater & Flood Control

Service website

Comprehensive engineering solutions for stormwater systems and flood mitigation.

  • Stormwater Management & Permitting

    Preparation of WQMPs, SWPPPs, and regulatory compliance documents for local and federal agencies.

  • Floodplain Management

    FEMA documentation, 1D/2D hydraulic modeling, and mapping services including CLOMR and LOMR applications.

  • Flood Control Engineering

    Planning and design of critical flood mitigation infrastructure, including levees, channels, and storm drains.

Water Resources & Lake Design

Service website

Specialized planning, engineering, and maintenance for natural and manmade water features.

  • Lake and Pond Design

    Design and consulting for recreational fishing lakes, community water features, and biological habitats.

  • Professional Lake Management

    Technical guidance and development of naturalized management manuals to assist owners in maintaining water ecosystems.

Civil Engineering & Project Support

Service website

General civil engineering, planning, and municipal support services.

  • Construction Documents & PS&Es

    Development of final plans, specifications, and estimates for public works and land development projects.

  • Municipal Plan Check Services

    Technical reviews of third-party design submittals for local compliance and regulatory standards.

  • Extension of Staff Services

    Experienced project management and senior engineering services integrated directly into client organizations.

Energy Sector Services

Service website

Civil engineering and site planning for clean energy developments.

  • Battery Energy Storage Site (BESS) Engineering

    Site design, due-diligence, and engineering documents for energy storage facilities.

  • Solar Energy Site Engineering

    Preliminary due-diligence and detailed engineering for utility-scale and commercial solar sites.

Structural & Residential Design

Service website

Structural engineering and wood framed design services.

  • Residential structural engineering

    Wood-framed structural design for custom homes, accessory dwelling units, and expansions.

Industries

Stormwater & Flood Control · Water Resources · Energy Storage · Solar · Residential · Public Safety · Infrastructure · Land Development

Projects

OCFA Fire Station No. 47

Irvine, CA

Project details

Civil engineering and infrastructure support for the Orange County Fire Authority station facility.

Lytle Creek Levee

Rialto, CA

Project details

Flood control and levee infrastructure engineering to address regional environmental deficiencies.

Railroad Canyon Dam

Client: Elsinore Valley Municipal Water District (EVMWD)

Project details

Hydrologic and civil engineering services for the dam facility.

J. Smith & T. Muli, Inc. - Engineering Firms