Knowledge Hub

Fixing Stormwater's Bad Grade
On its first American Society of Civil Engineers (ASCE) report card, the nation’s stormwater infrastructure received a D+. While a...
RJN Announces New President and CEO, Paul Costa
RJN is pleased to announce the Board of Directors has selected Paul Costa to serve as RJN’s next President and CEO. Costa, a 30-ye...
RJN Announces Jose Maldonado as Vice President
RJN is pleased to announce that Jose Maldonado, PE, has joined RJN’s senior leadership team as vice president. Jose will now overs...
West Park: Alternatives Analysis Provides Proper Protection
If the last few years have shown us anything, it is that storm events are trending toward the severe end of the spectrum in terms ...
Can Conserving Water During Rain Prevent Overflows? (Part 2)
In Part 1, this discussion centered on whether conserving water on rainy days could help prevent overflows in separated sewer syst...

Can Conserving Water During Rain Prevent Overflows? (Part 1)
I recently caught up with an old college friend who mentioned she was refraining from using water during heavy rains so that she w...
Avoiding the Perils of CIPP While Maximizing Its Benefits
So your engineering team has decided to use cure-in-place-pipe (CIPP) to prolong the useful life of the municipal pipelines, but w...
RJN Announces New Partners
At RJN, when individuals demonstrate acute business acumen and an aptitude for leadership, our firm takes notice. 
When I/I Persists After A Sewer Remediation Program
When you have completed a comprehensive inflow/infiltration (I/I) reduction program, but I/I levels are still not where you want t...
Dog Day in the Field
On any day, given the nature of the work we do at RJN, our firm’s field personnel see all manner of strange things. 
MSI Drives Rehab Planning for Large-Diameter Pipes
Like most cities across the US, the City of Tulsa is dealing with the maintenance and operation of an aging sanitary sewer infrast...
The 411 on Preventative Maintenance Programs
So, you reviewed thousands upon thousands of feet of CCTV footage and now you have mountains of data
Inflow/Infiltration Sources Captured on Video
Inflow/infiltration or clean water entering the collection system can strain capacity and cause overflows.