Drive Log
A field tool that listens to the hammer, counts the blows, and hands you the state DOT pile driving log — built for the person standing at the rig with a clipboard.
Set the phone down near the rig. Drive Log hears the hammer, counts every blow, keeps the count by the foot as you mark each one, checks the drive against the bearing criteria, and prints the finished record on your agency's own form. You leave the site with a clean log instead of a wind-blown, mud-streaked sheet to transcribe later.
It counts the blows for you
Drive Log listens to the hammer through the microphone and counts each blow as it lands — no tapping, no clicker, no losing count when the phone rings or someone asks a question. A live trace on screen shows every hit as it happens, so you can see it keeping pace with the hammer instead of trusting it blind.
Stroke is shown live for every blow and averaged by the foot, straight from the sound of the hammer, so the log carries stroke the way the form asks for it without anyone reading a gauge or guessing.
All you do is press MARK FOOT — one big glove-sized button. The phone buzzes and, if you want, speaks the foot aloud so you never have to look down. Count in feet, tenths, inches, or your own interval, and switch mid-drive when the pile slows.
Made for the site
The record
- Projects, structures, substructures and piles laid out the way the plans are, with the inspector, hammer, pile type, cutoff, weather and temperature on every pile
- Driving criteria set once per substructure — blows per foot, minimum stroke, penetration or tip elevation — and a clear meets / does not meet verdict on every pile that updates if the criteria change
- Initial drive, redrives and restrikes on one log; splices, pile runs, fuel-setting changes, depth corrections and notes stamped where they happened
- An editable drive log — fix a blow count or an ending depth on the phone, and the record keeps both the original and the correction. Nothing is ever silently overwritten
- Job info for the whole form: engineers, contractors, cushion, weather and the rest, entered once and printed on every pile
The forms
Every pile exports as a PDF and as an Excel workbook on the agency's own layout — measured off the blank form, with the header, the foot-by-foot table and the notes where the form puts them. Export a structure or a whole project and the workbook comes out with one tab per pile.
UDOT Pile Driving Record, plus FDOT 700-010-60, NCDOT, SCDOT 700.15, VDOT, GDOT, TDOT, LADOTD Log of Pile Driving and WSDOT 450-004A, and a plain record for any other owner. Send files anywhere the iOS share sheet goes — email, Files, AirDrop. More states are coming; ask for yours.
Hammers
A catalog of more than 250 diesel, hydraulic and air/steam hammers — Delmag, APE, Pileco, ICE, Junttan, Bermingham, Vulcan, Conmaco, BSP, Bruce, Liebherr, Kobelco and more — with ram weight, rated energy and stroke ready to check against the data plate. Add your own in thirty seconds.
Pricing
Drive Log is a one-time purchase on the App Store. Pro is an optional subscription for anyone exporting more than a handful of piles a month. Prices are in US dollars; local prices are set by the App Store.
App promoters: if you would like to show Drive Log to inspectors, contractors or an agency, email piledrivingapp@tallietales.com to ask about a promoter discount.
Your data stays on your device
Drive Log has no accounts, no sign-in, and no server. Every log you record is stored on your iPhone or iPad and nowhere else. The microphone is used only to hear the hammer — audio is analysed on the device as it happens and is never recorded or stored. We do not collect, transmit, sell, or share your data. Read the full privacy policy.
About Tallie Tales LLC
Tallie Tales LLC is a United States limited liability company that develops purpose-built mobile software for construction and deep foundation work. Drive Log is our first app, built with and for the inspectors who use it.
Contact
Email: piledrivingapp@tallietales.com
We answer support requests, bug reports, and feature suggestions within two business days.
For help with the app, see the support page.