L&R Engineers, Inc.

Delivers comprehensive structural and civil design for infrastructure networks. The practice supports clients through all phases of bridge engineering, structural inspection, and alternative project delivery systems.

• Bridge Design, Inspection, Management, and Rehabilitation

  Assists agency and private clients with structural design, safety inspections, asset management, and rehabilitation plans for bridges.

• Construction Engineering and Inspection

  Provides oversight and quality assurance during construction phases to ensure compliance with design specifications and regulatory standards.

• Design-Build Procurement and Delivery Management

  Manages alternative project delivery methods, streamlining coordination between design teams and builders for accelerated project completion.

• Erosion Control Design

  Develops erosion and sediment control plans to stabilize soils and protect surrounding water resources during and after construction.

• Scour Countermeasure Design

  Engineers protective systems and armoring to prevent structural undermining from river currents and hydraulic forces.

Evaluates, designs, and monitors water-retaining and flood-control structures. Services cover safety inspections, hydraulic failure modeling, and risk mitigation planning to protect surrounding communities.

• Dam Breach Analysis

  Simulates potential failure scenarios to assess risk and determine downstream impacts for emergency planning.

• Dam and Levee Inspection

  Performs safety evaluations and structural inspections of water-retaining infrastructure to identify maintenance needs.

• Emergency Action Plans

  Formulates response procedures and communication protocols for critical infrastructure facilities to enhance public safety.

• Inundation Mapping

  Generates spatial visualizations of potential flood zones to assist emergency management and regional planning.

• Spillway Design

  Designs critical release structures to safely manage and pass excess water during extreme storm events.

Performs advanced modeling and analysis to manage stormwater, analyze floodplains, and design drainage systems. Capabilities include 1D and 2D modeling for both urban and natural watersheds.

• Bridge Hydraulics

  Models water flow around bridge structures, abutments, and piers to evaluate hydraulic capacity and scour risk.

• Culvert Design

  Sizes and designs water conveyance structures beneath roadways and embankments to manage flow rates safely.

• FEMA LOMR/CLOMR Applications

  Prepares technical documentation and modeling to support official floodplain map revisions and amendments.

• Scour Analysis

  Calculates the potential depth of soil erosion around bridge foundations and underwater structures.

• Stormwater Master Planning

  Develops regional strategies and infrastructure plans to handle long-term stormwater runoff and flood mitigation.

• Urban Drainage Analysis

  Analyzes city street and stormwater system capacities to resolve localized flooding and drainage deficiencies.

• Floodplain Studies

  Assesses floodplain boundaries and water surface elevations to support development compliance and safety.

• No-Impact Certification Studies

  Conducts hydraulic modeling to certify that proposed floodplain developments will not increase flood elevations.

• Airport, Commercial, and Industrial Site Drainage Studies

  Evaluates and designs stormwater management systems for complex industrial, commercial, and aviation facilities.

Designs site layouts, grading, and utility systems for residential, commercial, and educational developments. Services ensure sustainable land use, proper drainage, and full site compliance.

• Apartment Complex Site Design

  Plans civil infrastructure, parking, and utility layouts specifically tailored for multi-family residential developments.

• Education Facility Site Design

  Designs safe and functional site layouts, access roads, and stormwater management systems for schools and institutional campuses.

• Erosion and Sediment Control

  Creates grading and stabilization plans to minimize soil loss and runoff contamination during land development.

• Grading and Drainage Plans

  Develops detailed topographic grading and drainage schemes to direct runoff away from buildings and critical structures.

• Restaurant and Shopping Center Site Design

  Engineers high-traffic commercial sites, focusing on optimal vehicle access, utility service, and local zoning compliance.