Maryland SHA adds Polypropylene Pipe to HDM
ADS HP Storm is now included in the Maryland State Highway Administration Highway Drainage Manual. Below are links to the drainage manual and design guidelines.
HP Storm Features & Benefits
Highway Drainage Manual
Access the Drainage Manual on Maryland's State Highway Administration website.
View the Manual
Documentation
- MDOT SHA Highway Drainage Manual Culvert Design Guidelines (PDF - 256 KB)
- HP Storm Brochure (PDF - 6 MB)
Did you know?
Spec the Pipe Engineered for Performance.

Spec the Pipe Engineered for Performance.
Our HP pipe features extended bell and spigot joints with a standard rubber gasket that exceeds 25 feet of head pressure per ASTM D3212. HP pipe also has a 100-year design life and is corrosion resistant; unaffected by salts, most chemicals, and “hot” soils.
For more information, please contact:
District 1 and 2
610-333-5600
ross.fortner@adspipe.com
District 3 & 5
202-430-9381
thomas.janes@adspipe.com
District 4 & 7
410-913-0539
ari.rosen@adspipe.com
District 6
304-240-0082
michael.green@adspipe.com