Access
CurveNumber is in a private pilot
Accounts are opened by invitation. Every account on this product is opened by a person. There is no sign-up form, there is no checkout, and there is no trial that starts itself.
Why
The terms, the support and the pricing were written for a pilot where we have spoken with each account holder, so a person opens each account.
The request form records that you asked. It does not create an account, it does not send an invitation, it takes no payment and it asks for no payment details. Somebody reads the list and decides. No date is promised here, because a date nobody is committed to is worse than no date at all.
What it does for you
- Every storm, before and after. Existing, proposed and with practices, for water quality through the 100-year storm, pass or fail.
- A fix to try. When a storm fails, CurveNumber reruns it at larger practice sizes and shows the smallest that passes the most.
- Drainage areas from the ground. One press suggests each practice's drainage area from USGS elevation.
- A report your reviewer can check. Every figure says where it came from.
See it on four worked examples, or read the features.
How it does it
It computes runoff and green infrastructure reduction for small sites by TR-55, and it attaches the provenance of every figure to the figure: where the number came from, which edition it was read out of, who typed it if a person did, and what would displace it. It states in writing when a number cannot be computed and what it needs, instead of guessing, in ninety-seven named checks, each with what would resolve it. It keeps an append-only record of every change to a site, so an override of a derived value cannot be removed after the fact. The full account of what is in it is on the features page, and the account of what is not finished is on the About page, which is the one to read first if you are deciding whether to ask.
Before you ask, three things that are true
- The published tables in CurveNumber have not been independently checked. One person transcribed them, nobody has verified them yet, and every report that uses them says so.
- It is pre-launch and has never had a paying customer. Pricing is on the pricing page and how you pay involves a human being and an invoice, because the checkout is built and switched off.
- It is decision support and not engineering. A licensed professional is responsible for the design, and every figure requires independent verification.
Request access
The request form is on the application's own address, app.curvenumber.com,
so your request goes straight to where it is recorded. It asks for your email address,
your name, your firm, what you practice and what you would use CurveNumber for, and
nothing else. We email you once to confirm we have it. If your request is approved, a
second email brings an invitation with a link to set your password and sign in. The
privacy notice covers what happens to what you send.
If you would rather write to a person, support@curvenumber.com reaches the same one. An email is not worse than the form; the form exists so that a request does not depend on somebody remembering to file it.