# Hydraulic Structures Pro — Weirs, gates and culverts

> Weirs, gates and culverts (iPhone/iPad app by Alexius Academia.)

- Source: https://appshunter.io/ios/app/hydraulic-structures-pro/id6821004696 (this page in markdown: same URL + `.md`)
- Developer: [Alexius Academia](https://appshunter.io/developer/1209840214)
- Category: Productivity, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-10-31
- Data updated: 2026-11-04

## What is Hydraulic Structures Pro?

Hydraulic Structures Pro works out the discharge, head or headwater of the structures that control open channel flow, and gives you the rating curve and a PDF report to go with it. It is made for civil, hydraulic and irrigation engineers, and for students of hydraulics.

SEVEN STRUCTURES

• Sharp-crested weir: rectangular with or without end contractions, V-notch and Cipolletti, with the Villemonte reduction for a submerged crest.
• Broad-crested weir: critical flow over the crest on the total head, with a check against the modular limit.
• Ogee spillway: pier and abutment contractions, and a coefficient that follows the head away from the design head.
• Orifice: circular or rectangular, free or submerged.
• Sluice gate: free and submerged underflow. Solve for the discharge, the gate opening or the upstream depth, with the thrust on the gate.
• Culvert: headwater in inlet and outlet control after FHWA HDS-5, for concrete pipes, corrugated metal pipes and box culverts, with the performance curve.
• Stilling basin: the hydraulic jump from either depth, its length and energy loss, and the USBR basin that suits it.

FEATURES

• Solve for the discharge or for the level that passes it.
• Metric and English units. Switching converts what you typed.
• A rating curve or performance curve with every result, with the solved state marked.
• Notes that tell you when a result is outside the range its method was derived for.
• PDF reports with the inputs, results, notes and chart.
• Save calculations by name and open them again later.
• Works offline. No account, no ads, no tracking.

The results are for preliminary design and checking. The coefficients are typical values: confirm them for the structure at hand, and have the design reviewed by a qualified engineer.

## Is Hydraulic Structures Pro safe?

Not enough ratings yet to assess Hydraulic Structures Pro.

## Is Hydraulic Structures Pro legit?

Hydraulic Structures Pro appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Hydraulic Structures Pro is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-31

No release notes.

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All apps by Alexius Academia: https://appshunter.io/developer/1209840214

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-04.*