# Highways & Roadwork Calculator

> Civil engineering calculator for highway and road design parameters. (iPhone/iPad app by V PUGAZHENTHI.)

- Source: https://appshunter.io/ios/app/highways-and-roadwork-calculator/id661032270 (this page in markdown: same URL + `.md`)
- Developer: [V PUGAZHENTHI](https://appshunter.io/developer/491898049)
- Category: Utilities, Education
- Price: $2.99
- Rating: 3.70/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 16.0 · 6 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, European Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2013-06-19
- Data updated: 2026-08-13
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/highways-and-roadwork-calculator/id661032270/reviews.md

## What is Highways & Roadwork Calculator?

Highway and Road Calculator contains 37 Calculators to calculate different Highway, Road and Civil Engineering parameters. 
 - Available in Imperial (USCS)  and Metric Units (SI). 
App has following list of 37 Calculators:

1. Radius of Curve - Arc Definition (Circular Curves) 
2. Radius of Curve - Chord Definition (Circular Curves)
3. Degree of Curve - Arc Definition (Circular Curves)
4. Degree of Curve - Chord Definition (Circular Curves)
5. Tangent Distance (Circular Curves)
6. External Distance (Circular Curves)
7. Midordinate (Circular Curves)
8. Length of Long Chord (Circular Curves)
9. Length of Curve (Circular Curves)
10. Central Angle for Portion of Curve - Arc Definition (Circular Curves)
11. Central Angle for Portion of Curve - Chord Definition (Circular Curves)
12. Tangent Offset (Circular Curves)
13. Chord Offset (Circular Curves)
14. Rate of Change of Grade (Parabolic Curves)
15. Elevation of Point of Vertical Curvature (Parabolic Curves)
16. Elevation of Point x distant from Point of Vertical Curvature (Parabolic Curves)
17. Distance from Point of Vertical Curvature to Lowest Point on a Sag Curve/Highest Point on a Summit Curve (Parabolic Curves)
18. Elevation of Lowest Point on a Sag Curve/Highest Point on a Summit Curve (Parabolic Curves)
19. Minimum Length of Crest Vertical Curves (Sight Distance less than Length of Vertical Curves)
20. Minimum Length of Crest Vertical Curves (Sight Distance greater than Length of Vertical Curves)
21. Rate of Vertical Curvature
22. Structural Number (Surface Course)
23. Structural Number (Base Course)
24. Structural Number (Subbase Course)
25. Structural Number (Pavements)
26. Minimum Length of Spiral Curve
27. Thrust of Structure (Culverts)
28. Flexibility Factor
29. Ring-Compression Stress
30. Horizontal Deflection of Pipe (Iowa Formula)
31. Design Pressure - Corrugated Steel Structures (Height of Cover less than Pipe Diameter)
32. Design Pressure - Corrugated Steel Structures (Height of Cover greater than Pipe Diameter)
33. Compressive Thrust (Conduit Walls)
34. Ultimate Wall Stress (294 greater than Ratio of Pipe Diameter and Radius of Gyration of Pipe Cross Section less than 500)
35. Ultimate Wall Stress (Ratio of Pipe Diameter and Radius of Gyration of Pipe Cross Section greater than 500)
36. Design Stress of Wall
37. Pipe Wall Area

## Key features

- 37 specialized calculators
- Highway and road engineering
- Imperial (USCS) and Metric (SI) units
- Circular curve calculations
- Parabolic curve calculations
- Structural number calculations
- Pipe and culvert design


## Frequently asked questions about Highways & Roadwork Calculator

### What is the price of Highways & Roadwork Calculator?

Highways & Roadwork Calculator is a paid app priced at $2.99. This one-time purchase grants you access to all 37 calculators.

### Does Highways & Roadwork Calculator have ads?

No, Highways & Roadwork Calculator does not contain advertisements. It is a paid application designed to be ad-free.

### What units does Highways & Roadwork Calculator support?

The app supports both Imperial (USCS) and Metric (SI) units, allowing for flexible calculations based on your project's requirements.

### How often is Highways & Roadwork Calculator updated?

The latest version of Highways & Roadwork Calculator is 6.1, and it was last updated on January 11, 2026. This indicates a history of updates, though specific frequency is not detailed.

### What devices can I use Highways & Roadwork Calculator on?

Highways & Roadwork Calculator is available for iPhone and iPad devices. It is designed for iOS users.

### What is the age rating for Highways & Roadwork Calculator?

The app has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in engineering concepts.

### What types of calculations does Highways & Roadwork Calculator offer?

It offers 37 calculators covering various aspects of highway and road engineering, including radius and degree of curves, grades, structural numbers, and pipe design parameters.

### What do users think of Highways & Roadwork Calculator?

Based on the available data, Highways & Roadwork Calculator has a rating of 3.7 stars from 3 ratings. This suggests a generally positive but mixed user reception.

## Version history (last 5 releases)

### 6.1 — 2026-01-11

- updated for iOS 26.0

### 6.0 — 2022-10-29

- updated for iOS 16

### 5.0 — 2019-06-27

improved userInterface

### 4.1 — 2016-05-13

- compatible with iPad pro and iPhone 6s

### 3.0 — 2014-05-19

- updated for iOS 7
- switching between ( SI Units & USCS ) Units made easy

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## More apps by V PUGAZHENTHI

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- [Elec Series & Parallel Calc.](https://appshunter.io/ios/app/elec-series-and-parallel-calc/id511296315)
- [Universal Converter.](https://appshunter.io/ios/app/universal-converter/id519552652)

All apps by V PUGAZHENTHI: https://appshunter.io/developer/491898049

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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 2026-08-13.*