ADS STORMWATER PRODUCTS

[SkinnyDip]

Anybody had any experience using the ADS/Hancor stormwater products? How did they work out for you? Have any issues getting them permitted? In the permitting process right now and wondering how bad its gonna be.

 

[cvg]

so far, have not gotten them permitted in any city street right of way

 

[RWF7437]

They are widely specified and used in Oregon and have no special problems that I know of.

 

[TerryScan]

We have used ADS N-12 (double walled) extensively on private work. The state DOT has specific policy on pipe materials that does include HDPE (

http://tinyurl.com/4o8pkg).

Proper installation is key. We have seen problems when the pipe is not properly bedded and backfilled, especially below the springline of the pipe. Where installation practices have been particularly sloppy or when heavy equipment has crossed the pipe before adequate cover, the pipes have had excessive radial deflection and even radial buckling.

If one is attempting installation in a wet environment, there can be floatation issues during installation.

Keep in mind, other pipe materials are not imune to poor construction practices. Each material is more foregiving in different aspects. RCP doesn't tend to float or have raidal deflection. One may be more likely to get failed joints with poorly installed RCP.

If you are enthusiastic about using ADS and have issues with regulators, the company is not bashful about sending representatives to meet with agencies to make their case. There has been a good bit of politics in the RCP vs. HDPE realm.

I believe I have a good idea when HDPE is not appropriate. I like having choices.

 

[loosestring]

We've had a handful of recent projects where the engineer used ADS (stormtech) underground storage systems. Our most recent one was a grocery store and was approved on the first submittal to both the city and wmd.

The ADS folks will even help with the design. We had them out twice and they bought us all lunch.

 

[LCruiser]

The only problem I've had was improper installation. A big advantage is it's easy to handle. You can kick it into the trench without damaging it. However, the joints must be seated well.