Siddiqui Engineering & Land Surveying, P.C.

Civil, structural, and transportation engineering and land surveying services

Website

About the firm

Siddiqui Engineering & Land Surveying, P.C. (SEPC) is a multi-disciplinary civil and structural engineering and land surveying practice located in Long Island, New York. It provides planning, engineering design, condition inspection, construction inspection, construction support, and land surveying services to public agencies and private sectors in the New York City Metropolitan Area. SEPC delivers services to public and private entities, maintaining a team of licensed professional engineers and experienced surveyors to manage complex infrastructure projects.

Firm type
Civil Engineering · Structural Engineering · Transportation Engineering · Land Surveying · Design-Build

Credentials

The Port Authority of NY & NJ · New York State Dept. of Transportation · New Jersey Transit · Connecticut Department of Transportation · New York State Dept. of Economic Development · New York City Small Business Services · Nassau County Office of Minority Affairs

Capabilities

Bridge Design

Specializes in design services for bridge replacements, rehabilitation, and repairs across major metropolitan structures.

  • Structural Design and Analysis

    Structural analysis and design for bridge replacement, rehabilitation, and repairs.

  • Drainage Design

    Design of drainage systems integrated into bridge and highway structures.

  • Lighting and Signage Plans

    Development of electrical lighting systems and signage layouts for roadways and bridges.

  • Maintenance and Protection of Traffic Plans

    Detailed MPT planning to ensure safe work zones and traffic flow during construction.

  • In-depth Inspection

    Detailed condition evaluations and structural diagnostics of bridge elements.

  • Contract Plans, Specifications, Schedules, and Estimates

    Preparation of final PS&E construction documentation.

Biennial Bridge Inspection

Performs biennial and condition inspections of major long-span bridges, arterial routes, and tunnels.

Civil Design

Civil engineering design for municipal and public works infrastructure including roads, utilities, and stormwater systems.

  • Preliminary and Final Design

    Phase-based design engineering from concept through final authorization drawings.

  • Drainage and Watermain Design

    Hydrologic design for sewers, stormwater systems, and water distribution networks.

  • Sidewalk & Pedestrian Ramps Survey and Evaluation

    Technical inspections and design for ADA-compliant pedestrian ramps and sidewalks.

  • Profiles, Utility Plans and ROW Studies

    Utility coordination, vertical profiling, and right-of-way research.

  • Construction Support Services

    Engineering consultations and plan clarifications during the construction phase.

Construction Inspection

Provides construction inspection and management services using technical procedures and accurate documentation.

  • Drainage and Water Main Construction

    Inspection of subterranean water main installations and stormwater management systems.

  • Traffic Signals and Street Lighting Installation

    Quality assurance and safety inspection for municipal electrical traffic components.

  • Highways and Roadways Construction

    Monitoring and documentation of roadway paving, alignment, and resurfacing projects.

  • Bridge Construction and Rehabilitation

    Inspection of structural concrete, steel retrofits, and bridge deck rehabilitation.

  • Constructability Reviews

    Pre-bid technical evaluations of project designs to identify and mitigate construction conflicts.

Design-Build

Integrated design-build delivery services for public and private infrastructure.

Tunnels

Engineering services for tunnel facilities and subsurface structures.

Rail and Transit Engineering

Work in this area is organized into supported delivery tasks.

  • Infrastructure Engineering

    Support includes Infrastructure engineering.

  • Transit Facility Inspections

    Support includes transit facility inspections.

  • System Support

    Support includes system support.

Facilities Engineering

Engineering services for public and private buildings and support facilities.

Land Surveying

Work in this area is organized into supported delivery tasks.

  • Professional Land Surveying

    Support includes Professional land surveying.

  • Boundary Analysis

    Support includes boundary analysis.

  • Topographic Surveys

    Support includes topographic surveys.

  • Utility Mapping

    Support includes utility mapping.

Industries

Bridges · Transit · Tunnels · Government · Transportation

Projects

Major Deegan Ramp

New York, NY · Transportation

Project details

Civil design services for the Major Deegan Expressway ramp.

Merrick Bridge

Bridges

Project details

Construction inspection and bridge design services for the Merrick Bridge project.

Kew Gardens

Queens, NY · Transportation

Project details

Infrastructure engineering services in the Kew Gardens area.

George Washington Bridge

New York, NY · Bridges

Project details

Inspection and structural services for the George Washington Bridge.