Our Services

  • A document detailing a geotechnical engineering firm's site investigation findings, including soil and groundwater conditions, laboratory testing results, and recommendations for foundation design. The report guides architects, engineers and contractors in building safely and efficiently.

  • Percolation Test is a report provides information about a site's soil's ability to absorb and transmit water, crucial for the design and construction of on-site wastewater treatment systems such as septic systems. It measures the rate of water soak-in, percolation rate, test location results and more.

  • Compaction testing determines soil density and strength for the stability of structures built on it. It involves taking soil samples and measuring density/moisture content with a device like a nuclear gauge. Required during site investigation, construction, and after construction to ensure soil is compacted properly and foundations are stable. Results are compiled into a report and submitted per local regulations.

  • A Phase 1 report, also known as an Environmental Site Assessment (ESA), is a report that assesses the potential environmental risks of a property and identifies any recognized environmental conditions (RECs) such as hazardous materials or contamination. It is used in real estate transactions and property development.

  • A Phase 2 report, also known as a Phase II Environmental Site Assessment, is a detailed investigation of the presence and extent of environmental contamination, conducted after a Phase 1 report identifies potential environmental liabilities. It includes site conditions, a summary of Phase 1 findings, sampling methodology, results of lab analysis, risk assessment, and recommendations for remediation or further investigation.

  • Our firm provides comprehensive soils-related material testing services to ensure compliance with project specifications, industry standards, and regulatory requirements. Our laboratory and field-testing capabilities support geotechnical investigations, earthwork construction, and quality control assessments for residential and commercial projects.

    Our soil testing services include:

    • Moisture-Density Relationship (Proctor Test) – Determines the optimum moisture content and maximum dry density of soil.

    • In-Place Density Testing (Sand Cone, Nuclear Gauge, or Drive Cylinder Methods) – Evaluates the compaction of soil and fills to meet project requirements.

    • Atterberg Limits (Liquid & Plastic Limits) – Identifies soil plasticity characteristics and classification.

    • Sieve Analysis – Determines particle size distribution and soil gradation.

    • Direct Shear Tests – Assesses soil shear strength for slope stability and foundation design.

    • Consolidation Testing – Evaluates soil settlement characteristics under load.

    We offer both field testing and laboratory testing, with results provided in a timely manner to support project progress. Our team follows ASTM, AASHTO, and Caltrans standards where applicable, ensuring accuracy and reliability in our testing procedures.

  • Our firm provides comprehensive retaining wall design services for residential and commercial projects, ensuring stability, durability, and compliance with local building codes and engineering standards. We specialize in designing retaining walls that support soil loads, prevent erosion, and integrate seamlessly with site conditions and aesthetics.

    Our retaining wall design services include:

    • Gravity Walls – Designed using mass and weight to resist lateral earth pressures, commonly constructed from concrete, stone, or modular blocks.

    • Cantilevered Retaining Walls – Reinforced concrete walls with a footing that leverages soil weight for stability, commonly used for taller wall applications.

    • Segmental Retaining Walls (SRWs) – Mechanically stabilized earth (MSE) systems using interlocking blocks with geogrid reinforcement for flexibility and cost efficiency.

    • Soldier Pile & Lagging Walls – Structural walls utilizing steel piles with timber or concrete lagging, ideal for deep excavations and site constraints.

    • Slope Stability & Reinforced Fill Walls – Designs incorporating geogrid or soil reinforcement to enhance stability in sloped terrains.

    Design Considerations & Analysis

    Our retaining wall designs factor in:
    ✔ Geotechnical Properties – Soil strength, bearing capacity, and potential for settlement or lateral movement.
    ✔ Hydrostatic & Seismic Loads – Accounting for water drainage, groundwater pressure, and seismic activity per California building codes.
    ✔ Drainage Design – Incorporating proper backfill, drainage pipes, and weep holes to mitigate water pressure.

    Our team ensures that all retaining wall designs meet local jurisdiction requirements and industry standards (IBC, CBC, Caltrans, ASCE 7).

  • Our firm provides liquefaction analysis to assess soil susceptibility to seismic-induced settlement and loss of strength. This analysis is essential for projects in seismically active regions and is performed in accordance with California Geological Survey (CGS) and local jurisdiction requirements.

    To evaluate subsurface conditions, we conduct deep borings up to 50 feet using Standard Penetration Tests (SPT) and soil sampling methods. These borings provide critical data on soil stratigraphy, groundwater levels, and dynamic soil properties necessary for liquefaction potential assessment.

    Our liquefaction studies include:
    ✔ SPT Analysis
    ✔ Seismic Settlement & Lateral Spreading Evaluation
    ✔ Mitigation Recommendations

Geotechnical Engineering

Civil Engineering

  • Our grading plans are meticulously designed to meet your project's unique requirements. Our experienced civil engineering team leverages cutting-edge technology and expertise to develop comprehensive grading plans that optimize land use, ensure proper drainage, and comply with local regulations. We conduct thorough site assessments, topographical surveys, and soil analysis to inform our grading plans, ensuring precision and efficiency.

    At Moment Engineering, our dedicated team of licensed civil engineers and professionals takes charge of preparing grading plans. With years of industry experience, our experts have a deep understanding of local zoning ordinances and construction standards. We work closely with you to incorporate your vision and project goals into the grading plan, ensuring seamless integration with your overall project design.

    Discover the benefits of our grading plan services, which not only streamline your construction process but also promote sustainable land development practices. Contact us today to discuss how our tailored grading plans can elevate your project.

  • A hydrology report is a critical component of any construction project that involves managing water, drainage, and environmental considerations. At Moment Engineering, we understand that successful construction begins with a deep understanding of how water flows on and around your project site. Our hydrology reports provide you with a comprehensive analysis of the site's water-related aspects, including rainfall patterns, runoff, and drainage characteristics. Armed with this valuable information, you can make informed decisions, minimize risks, and ensure compliance with local regulations.

    Our team of skilled civil engineers are experts in preparing hydrology reports. These professionals possess years of experience and a keen understanding of the complexities associated with water management in construction. They utilize advanced modeling and mapping techniques to assess the site's hydrological characteristics, ensuring accurate and actionable insights.

    Partner with Moment Engineering for reliable hydrology reports that guide your construction project to success. Our commitment to precision and sustainability ensures that you're equipped with the knowledge needed to overcome water-related challenges efficiently. Contact us today!

  • A Low Impact Development (LID) report is a strategic blueprint for sustainable land development and construction practices. At Moment Engineering, we recognize the importance of environmentally responsible development. Our LID reports are tailored to promote smart and eco-friendly construction that minimizes the impact on the natural environment. These reports outline innovative stormwater management techniques, erosion control measures, and green infrastructure solutions to enhance project sustainability.

    Our dedicated team of engineers are the architects of LID reports. They bring a wealth of experience in eco-conscious design and development, ensuring that your project aligns with the principles of LID. By collaborating with local authorities and leveraging state-of-the-art technologies, our experts create customized LID reports that not only meet regulatory requirements but also contribute to a greener and more resilient community.

    Choose Moment Engineering for comprehensive Low Impact Development reports. Contact us today!

  • An erosion control plan is a comprehensive strategy designed to safeguard your construction project and the surrounding environment from the adverse effects of erosion and sedimentation. At Moment Engineering, we recognize that erosion can pose significant challenges to construction sites, potentially leading to environmental damage and project delays. Our erosion control plans are meticulously crafted blueprints that outline effective measures to prevent erosion, control sediment runoff, and maintain the integrity of your project site.

    Our team of skilled engineers are the architects of these vital plans. They bring a wealth of experience and a deep understanding of local environmental regulations to the table. By conducting thorough site assessments and leveraging innovative erosion control techniques, our experts develop tailored erosion control plans that not only meet compliance standards but also contribute to the sustainability of your project and the preservation of our natural surroundings.

    Partner with Moment Engineering for reliable erosion control plans that mitigate risks, enhance project efficiency, and promote responsible land development. Contact us today!

  • Our firm provides comprehensive utility plan design services for residential and commercial developments, ensuring efficient and code-compliant infrastructure for water, sewer, storm drainage, and dry utilities. Our designs incorporate local agency requirements and utility provider standards to facilitate permitting and construction.

    Our utility plans include:
    ✔ Water & Sewer Line Layouts – Sizing, alignment, and connection details for potable water, fire protection, and sanitary sewer systems.
    ✔ Storm Drainage Systems – Design of inlets, catch basins, pipes, and detention systems for effective stormwater management.
    ✔ Dry Utility Coordination – Routing and coordination for electrical, gas, telecom, and fiber-optic services.
    ✔ Grading & Drainage Integration – Ensuring proper utility placement relative to site elevations and surface drainage patterns.

  • Our firm specializes in Water Quality Management Plans (WQMPs) to ensure compliance with local stormwater regulations and minimize pollutant discharge from new developments and redevelopment projects. We design Best Management Practices (BMPs) tailored to site conditions to meet NPDES, MS4 Permit, and local jurisdiction requirements.

    Our WQMP services include:
    ✔ Site Drainage & Hydrology Analysis – Evaluating stormwater flow patterns and pollutant sources.
    ✔ Low Impact Development (LID) Design – Incorporating infiltration basins, bioretention, and pervious surfaces to reduce runoff.
    ✔ Treatment Control BMPs – Designing detention basins, vegetated swales, and proprietary filtration systems.
    ✔ Long-Term Maintenance Plans – Developing O&M plans for ongoing compliance and effectiveness.

    We provide design plans to facilitate regulatory approvals and project development. Contact us to discuss your stormwater management needs.

  • Our firm provides Street Improvement Plan design services to support residential, commercial, and municipal projects. We ensure compliance with local agency standards, ADA requirements, and traffic engineering guidelines, delivering designs that enhance safety, mobility, and infrastructure longevity.

    Our street improvement services include:
    ✔ Roadway Design & Widening – Alignments, lane configurations, and pavement section design.
    ✔ Curb, Gutter & Sidewalk Design – Ensuring proper drainage and ADA-compliant pedestrian access.
    ✔ Intersection & Traffic Signal Improvements – Design for traffic flow optimization and safety enhancements.
    ✔ Stormwater & Utility Coordination – Integration of drainage, water, and utility infrastructure with roadway improvements.