Highway Tools for the Field and the Office.
SnagMP is a suite of tools built for highway professionals. Locate mileposts, generate elevation profiles, collect field data, and more — all powered by official state DOT data. Currently supporting Washington, California, Oregon, Texas, and Utah.
SnagMP Field
Mobile AppA GPS-based milepost locator built for highway fieldwork. Runs on your phone as a Progressive Web App — no app store needed — and works completely offline after a one-time data download.
Live Milepost Tracking
Continuously updates your state route and milepost to the nearest .001 as you move. Shows offset distance when you're off-route.
Station (STA) Mode
Set a station reference at your current milepost and track your station value in real time as you walk or drive. Ties project stationing to mileposts.
Map View
A track-up moving map showing nearby state routes with milepost tick marks. Zoom adjusts automatically based on your travel speed.
Dataset Overlays
Download supplemental datasets like Fish Passage Culverts. See a proximity-sorted list of nearby features with distance, stream name, and barrier status.
Fully Offline
The entire state route network is stored on your phone. No cell service needed after initial setup — built for remote highway locations.
High-Visibility Display
Designed for outdoor use with a high-contrast safety theme. Easy to read in bright sunlight while on the job site.
Available for WA, CA, OR, TX, UT — Install to your home screen for the best experience
SnagMP Maps
Chrome ExtensionOverlays accurate milepost data, elevation profiles, and cross-sections directly on Google Maps. Turn your browser into a highway engineering workstation.
Pin Mode Locator
Drop a pin anywhere on Google Maps to instantly retrieve the nearest route, milepost, and travel direction from official state DOT data.
Smart Search
Enter any Route and Milepost to zoom directly to that location. Supports mainline routes, spurs, couplets, alternates, and station equations.
Elevation Profiles
Generate centerline elevation profiles using USGS 3DEP LiDAR data. View grade percentages, vertical curves, and export to PDF.
Cross-Sections
Visualize roadway cross-sections at any milepost. See ground elevations perpendicular to the highway alignment.
Street View HUD
Real-time milepost overlay while browsing Street View. See Route, Milepost, Direction, and Station as you navigate.
Ditch Detection
Automatically identifies roadside ditch lines from LiDAR cross-section data along a corridor. Detects ditch depth, offset, and continuity.
Composite Sheets
Export publication-ready 11×17 engineering PDF sheets combining profile views, cross-sections, plan views with aerial imagery, and roadway data tables.
Export Tools
Download elevation data as CSV or generate engineering-style PDF sheets for profiles, cross-sections, and feature annotations.
Version 3.0.2 Beta — WA, CA, OR, TX, UT
