Senior Roadway Drainage Engineer (Hydrology & Hydraulics)

About the role

The AECOM Water Business Line is seeking a Senior Roadway Drainage Engineer (Hydrology & Hydraulics ) to join the Phoenix, AZ office. This role focuses on roadway and highway drainage design, hydrologic and hydraulic modeling for transportation corridors, and development of storm drain, culvert, and cross-drainage systems in support of municipal and DOT infrastructure projects.

Responsibilities

• Lead hydrologic and hydraulic analysis and design for roadway drainage systems, including storm drain networks, culverts, inlets, gutter flow, spread analysis, and hydraulic grade line (HGL) evaluations along transportation corridors
• Direct preparation and delivery of construction packages, including design drawings, specifications, cost estimates, alternatives analyses, technical memoranda, and design reports
• Plan, schedule, and coordinate detailed phases of engineering projects with a focus on stormwater management systems
• Perform and oversee hydrologic and hydraulic analyses specifically for roadway and highway drainage, including culvert sizing, storm drain system design, cross-drainage structures, and floodplain impacts at roadway crossings
• Lead conceptual and final design of roadway drainage infrastructure including culverts, storm drain systems, detention facilities, channels, and erosion control measures integrated with roadway profiles and grading plans
• Prepare roadway drainage plans, profiles, and details in coordination with roadway design teams using Civil 3D, ensuring compliance with DOT, county, and municipal drainage criteria
• Ensure designs incorporate erosion control measures, geosynthetics, and surface and subsurface drainage systems
• Provide technical oversight, independent reviews, and approval of engineering analyses and design deliverables
• Manage and coordinate multi-disciplinary project teams, including subcontractors, typically consisting of five or more team members
• Mentor and provide technical direction to junior engineers and designers
• Support client coordination, present design solutions, and contribute to development of project proposals and business growth initiatives

Requirements

• Bachelor’s degree in Civil Engineering or related discipline with 8 years of relevant professional experience
• Professional Engineer (P.E.) license in Arizona or ability to obtain within six (6) months of hire
• Experience with DOT or municipal roadway drainage standards (e.g., ADOT, county public works) including inlet spacing, gutter flow, spread calculations, and storm drain hydraulic design
• Demonstrated expertise in stormwater evaluation and design, including 1D/2D hydrologic and hydraulic modeling
• Proficiency with industry-standard modeling software (e.g., Open Roads Design (ORD), HEC-RAS, HEC-HMS, SRH-2D)
• Experience leading design tasks on complex water resources or design-build projects
• Strong understanding of stormwater permitting, floodplain management, and regulatory coordination
• Experience developing grading, drainage, and roadway plans in coordination with CAD designers (AutoCAD Civil 3D preferred)
• Proven ability to manage scope, budget, and schedule for complex engineering tasks
• Proven ability to prepare technical reports, calculation packages, and construction documentation
• Demonstrated technical review and quality control oversight experience
• Strong analytical skills with sound application of civil engineering design principles
• Effective communicator with the ability to lead teams and collaborate with other team members

Qualifications

• Bachelor’s degree in Civil Engineering or related field of study with 10 years of relevant professional experience

Skills

• Proficiency with industry-standard modeling software (e.g., Open Roads Design (ORD), HEC-RAS, HEC-HMS, SRH-2D)
• Experience leading design tasks on complex water resources or design-build projects
• Strong understanding of stormwater permitting, floodplain management, and regulatory coordination
• Experience developing grading, drainage, and roadway plans in coordination with CAD designers (AutoCAD Civil 3D preferred)
• Proven ability to manage scope, budget, and schedule for complex engineering tasks
• Proven ability to prepare technical reports, calculation packages, and construction documentation
• Demonstrated technical review and quality control oversight experience
• Strong analytical skills with sound application of civil engineering design principles
• Effective communicator with the ability to lead teams and collaborate with other team members

Benefits

Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absence, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.

Pay

USD 120000 - USD 155000 - yearly

Schedule

Hybrid