Distress Identification Manual5.0.1 - App Store

The official mobile companion to the LTPP Distress Identification Manual (DIM) now fully updated to the 6th Edition, published July 2025. Used by pavement raters and reviewers nationwide, the DIM provides a consistent, uniform basis for collecting and reviewing pavement distress data. This 6th Edition incorporates the latest LTPP directives and considerations tied to FHWA's Moving Ahead for Progress in the 21st Century Act (MAP-21).

What's inside:

- Complete distress definitions, descriptions, and illustrations for all three pavement types: asphalt concrete-surfaced, jointed Portland cement concrete (PCC), and continuously reinforced PCC
- Color photographs and reference drawings to help identify and assess distress severity
- Methods for measuring distress size and assigning severity levels
- Guidance on conducting field distress surveys, from traffic control setup to crack measurement
- Sample forms for recording and reporting distress data
- Reference material on fault measurement devices

Whether you're in the field collecting data or in the office performing quality assurance review, the LTPP Distress Identification Manual app gives you the current, authoritative reference in your pocket - no internet connection required once downloaded.

Version History This app was previously called “LTPP InfoPave.” It is now the Distress Identification Manual to better reflect its focus. All distress definitions, descriptions, and illustrations have been updated from the 5th Edition to the latest 6th Edition of the DIM, incorporating the most recent LTPP directives and MAP-21-related refinements. 5.0.1 Sep 2 Version 5.0.0 — Now the LTPP Distress Identification Manual · New name: This app was previously called "LTPP InfoPave." It's now the LTPP Distress Identification Manual to better reflect its focus. · Updated to the 6th Edition (July 2025): All distress definitions, descriptions, and illustrations have been updated from the 5th Edition to the latest 6th Edition of the DIM, incorporating the most recent LTPP directives and MAP-21-related refinements. 5.0.0 Aug 28 The UI of the application has been changed for easier navigation and more efficient data accessibility. 4.0.0 08/21/2024 Following are the updates included in LTPP InfoPave Mobile release 3.1.5:

- 5th edition changes of the Distress Identification Manual (DIM) published by FHWA in May 2014
- Corrections to the DIM issued by FHWA in Directive D-67 in July 2019
- Minor Issue Fixes 3.1.5 01/11/2021 Minor UI fixes. 3.1.4 01/09/2021 - Incorporated D-67 Directive
- Issue fixes 3.1.3 01/07/2021 Support for latest Google Maps API. 3.1.2 01/11/2019 A new filter 'Treatment Type' has been added in this revised version. 3.1.0 01/03/2017 Minor bug fixes. 3.0.1 01/17/2016 3.0.0

- Compatibility issues resolved for iOS 9
- Improved and more user friendly interface has been provided for menu
- Other minor issues resolved 3.0.0 11/03/2015 2.5.2

An issue with opening file attachments on Announcements screen has been fixed. 2.5.2 07/10/2015 Following are the updates included in LTPP InfoPave mobile app release 2.5.1

- Application is now compatible with iPhone 6 and 6 plus.
-Application filter options has been updated according to SDR 29 data release 2.5.1 06/27/2015 2.0.0
- Added Monitoring Status filter.
- Split Experiment Type/Study filter into two separate filters.
- Optimized for iPhone 6 and iPhone 6 Plus. 2.0.0 01/23/2015 2.0.0
- Added Monitoring Status filter.
- Split Experiment Type/Study filter into two separate filters.
- Optimized for iPhone 6 and iPhone 6 Plus. 1.3.2 01/09/2014 Distress Manual Fixes. 1.3.1 01/02/2014 Bugs fixed. 1.3 12/19/2013 Bugs in Distress Manaual Fixed 1.2 12/17/2013 Improved find sections area
Bug fixes 0.9.1 10/11/2013 0.9.0 (Alpha) 08/17/2013