Hydrology & Road Design Review

$5000-10000 AUD

Closed

Posted 29 days ago

$5000-10000 AUD

Paid on delivery

The detailed design package for a new roadway and its accompanying drainage network is ready, and I need a fresh, expert set of eyes to interrogate every assumption behind it. Your chartered-level insight into both hydrology (water management, culverts, detention sizing, flood immunity) and road engineering (horizontal and vertical alignment, pavement composition, safety, earthworks) will ensure the design is fully compliant, buildable, and optimised before we move to construction tender. Scope • Work directly on the detailed design phase documents: drawings (DWG/PDF), calculations, modelling files, and relevant standards. • Verify hydraulic and hydrologic calculations, catchment delineation, climate allowances, and drainage structure sizing. • Check roadway geometry, pavement layer thicknesses, sight-distance, crossfalls, and tie-ins against current design codes. • Highlight clashes between drainage and road elements and flag maintenance or constructability concerns. • Compile a concise review report with annotated mark-ups and clear, actionable recommendations. Acceptance criteria 1. Written report covering all findings, referencing drawing numbers and clause numbers from governing standards. 2. Annotated PDF set returned with comments pinned at the exact locations in the drawings. 3. A brief follow-up call (up to 1 hour) to walk through any high-priority items. All files will be supplied via a secure cloud link; please be comfortable working with AutoCAD, Civil 3D, HEC-RAS, or equivalent industry tools as needed. I’m keen to engage promptly so we can finalise the package on schedule.

Civil Engineering

AutoCAD

CAD/CAM

Project ID: 40321295

About the project

9 proposals

Remote project

Active 27 days ago

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9 freelancers are bidding on average $7,247 AUD for this job

@studiogo07

Hello, We understand your need for an expert review of roadway and drainage design including hydrology and engineering compliance. How would you like key assumptions in hydraulic calculations and roadway geometry to be validated against standards. We ensure precise and actionable insights. We have strong experience in civil design review including drainage analysis roadway geometry and CAD based documentation. Our team focuses on identifying clashes verifying calculations and ensuring constructability and compliance. We will deliver a detailed report with annotated drawings and clear recommendations ready for tender finalisation. We are ready to proceed and ensure reliable outcomes. Thanks

$5,000 AUD in 20 days

5.0

(76 reviews)

7.6

@Ekarthaan

Hi Ryan O., Just last week I completed a similar task successfully, so I can get started on this without any ramp-up time. Which governing standards and versions should I reference (e.g., Austroads 2023 + TMR MRTS/DR documents, AASHTO, or DMRB), and what flood-immunity levels are mandated for the mainline and intersections? What hydrology/hydraulics basis underpins the design—AEPs, climate-change allowances, IDF source, adoption of tailwater/blocked-outlet conditions—and are there existing 1D/2D models to review? Suggestions: Run a focused HEC-RAS 2D check on critical crossings with blockage sensitivity (e.g., 20–50% inlet loss) to confirm afflux, overtopping and hazard. Set up rule-based QA in Civil 3D/Navisworks for pipe cover, grades, utility clearances, maintenance access and pavement drainage, auto-producing an exceptions register. Action Plan: Phase 1 – Intake: confirm criteria; ingest DWGs/models, geotech and traffic; build review matrix. Phase 2 – Hydrology: verify catchments, losses/Tc, detention and structure sizing; test climate, tailwater and blockage sensitivities. Phase 3 – Road: audit H/V alignment, sight distance, superelevation/crossfalls, tie-ins; pavement layers vs subgrade/ESALs; earthworks/staging drainage. Phase 4 – Integration: clash detection (drainage vs grading/utilities), constructability/maintenance; prioritized issue log. Phase 5 – Deliverables: clause-referenced report + annotated PDFs; 1-hr walkthrough Best Regards, Sid

$10,000 AUD in 9 days

4.7

(11 reviews)

6.5

@epaminondasv

Hi, I recently supported a design review for a regional access road project where I checked drainage layouts, culvert sizing, and roadway geometry against current standards before tender. I also assisted on a stormwater and road upgrade package where I reviewed hydraulic calculations, annotated Civil 3D drawings, and prepared a concise report highlighting constructability and maintenance risks. I'd love to share my experiences with you. Best regards, Epa

$8,000 AUD in 7 days

5.0

(1 review)

5.2

@revival786

Greetings! I’m a top-rated freelancer with 16+ years of experience and a portfolio of 750+ satisfied clients. I specialize in delivering high-quality, professional hydrology & road design reviewing services tailored to your unique needs. Please feel free to message me to discuss your project and review my portfolio. I’d love to help bring your ideas to life! Looking forward to collaborating with you! Best regards, Revival

$5,000 AUD in 30 days

0.0

(0 reviews)

0.0

@darrenpin

Hello there, I have extensive experience reviewing roadway and stormwater design packages. I will thoroughly audit your drawings, calculations, and models to verify hydraulic assumptions, drainage sizing, and compliance with relevant standards while identifying any inconsistencies or risks. I will review roadway alignment, pavement design, sight distances, and earthworks to ensure constructability and safety, and flag any clashes between road and drainage elements. I will deliver a concise, structured report referencing drawing numbers and code clauses, along with an annotated PDF set highlighting all issues and actionable recommendations. I would be happy to discuss your project in further details at your convenience. Best, Darren

$5,000 AUD in 10 days