Precision Civil, LLC

Civil engineering and land development services in Flagstaff and Northern Arizona.

Website

About the firm

Precision Civil is a civil engineering and land development practice serving Flagstaff and Northern Arizona. Established in 2025, it specializes in site design, grading and drainage, utilities, subdivision development, municipal design, entitlements, and pre-construction services. The practice coordinates with a network of surveyors, architects, planners, and contractors to deliver full-service engineering solutions from initial concept to construction completion.

Established
2025
Firm type
Civil Engineering · Land Surveying · Design-Build

People

Stephen IrwinFounder and Project Manager

Samuel VosslerRegistered Civil Engineer

Emma AndersonCivil Designer and Project Manager

Capabilities

Site Design

Service website

Site planning and engineering for commercial, residential, and educational developments.

  • Commercial and Multi-Family Site Planning

    Site engineering for retail, restaurants, multi-family housing, and hospitality projects.

  • Residential Grading Plans

    Grading plans and site design tailored for residential lots.

  • Drainage Design

    Site-specific hydrology and drainage system engineering.

Utility Engineering

Service website

Design and coordination of water, wastewater, storm drain, and dry utility systems.

  • Water and Sewer Systems

    Engineering design for water distribution networks and sewer collection systems.

  • Storm Drain Systems

    Design of municipal and private storm drain infrastructure.

  • ADEQ Permitting

    Assistance with environmental quality permitting processes in Arizona.

  • Dry Utilities Coordination

    Coordination and alignment of power, telecommunications, and other dry utilities.

Municipal Engineering

Service website

Public infrastructure engineering including roadway design, water/sewer networks, and flood control mitigation.

  • Roadway Design

    Engineering of municipal roads, rehabilitation projects, and transportation corridors.

  • Flood Control & Mitigation

    Drainage design, flood control structures, and emergency wildfire flood mitigation.

Subdivision Development

Service website

Comprehensive subdivision engineering from survey and platting to construction plans and observation.

  • Topographical and Boundary Surveys

    Site surveys supporting site layouts and development plats.

  • Drainage Master Plans

    Area-wide planning for stormwater management and runoff control.

  • Preliminary and Final Platting

    Preparation of plats for municipal review and approval.

  • Civil Construction Plans

    Detailed engineering blueprints and documents for site construction.

  • Construction Observation Services

    Field oversight and observation during the construction phase.

Entitlements

Service website

Regulatory planning and coordination including site plan entitlements, rezoning, and conditional use permits.

  • Site Plan Entitlements

    Securing local government approvals for conceptual site plans.

  • Rezone & Map Amendments

    Guiding projects through zoning modifications and map adjustments.

  • Conditional Use Permits

    Navigating application and approval processes for conditional property uses.

Pre-Construction

Service website

including cost estimation, constructability reviews, and value engineering.

  • Cost Estimating Services

    Development of precise construction cost projections.

  • Constructability Reviews

    Analyzing designs for ease of construction and field feasibility.

  • Value Engineering

    Optimizing project scope and engineering to reduce costs without compromising quality.

Industries

Commercial · Retail · Residential · Multifamily Residential · Education · Government · Parks & Open Space · Infrastructure · Transportation · Water Supply · Wastewater · Stormwater & Flood Control

Projects

No projects listed yet.

Precision Civil, LLC - Engineering Firms