Editor’s note: The following letter was written to Planning and Zoning Commission members, and submitted to the Westport Journal for publication.

_______________________________________

Re: 13 Hyde Lane: Municipal Improvement Application #PZ-23-00716

As a professional engineer, I have 40 years of construction management experience, overseeing many high-profile and complex projects and programs, recently completing full reconstruction of the LaGuardia Airport. Twenty years ago, I was a part of the building committee that managed the reconstruction of Staples High School.

As a long time Westporter I care very much about what’s going on in our town. I’m not a gardener, but thanks to our bloggers I began following the issues surrounding the proposed reconstruction of Long Lots Elementary School and the proposal to eliminate Westport Community Gardens as a necessary component of this project.

I’ve watched the proposed plans being developed over the course of the last six months and I’m very disappointed to see what’s been presented to you in this application. These plans are not well thought-out and have many relatively obvious deficiencies. 

I therefore ask P&Z to consider allowing the proposal for the new school elements to go forward while safeguarding and protecting the open space that is the preserve and the gardens.

The below points lay out the basis for my making the above statement.

Staging

Long Lots project, proposed stockpiling sites

I’ll start with the most recent staging plan that was presented by the LLSBC at the Board of Finance meeting on Dec. 11. The full drawing is attached for reference. The LLSBC postulated that to execute their chosen plan safely and economically, they would need to utilize the entire site and therefore provided this detail (at left). 

Environmental hazards: I can’t think of too many things that could be more wrong than dumping and sorting potentially contaminated demolition debris on a site that is occupied by school children and is directly adjacent to dwellings.

Complexities of site management and associated risks: The LLSBC also claimed that before excavated soil is removed from the site it needs to be stockpiled and tested. As someone who has done this often, I can assure you, it isn’t simple. Even when the stockpiles are covered with plastic to contain run-off onto adjacent properties, the same storms that bring rain come with high winds that sometimes rip the plastic off the piles and allow the soil to erode onto adjacent properties. Placing large stockpiles next to adjacent properties on the highest possible terrace of the site is not prudent and environmentally flawed. The soil could be tested in situ prior to excavation and if non-hazardous, immediately removed off-site without creation of large piles.

Drainage

I’d also like to discuss the proposed plans as they relate to the drainage issues during and post construction.

Deficiencies in the current proposal: By unnecessarily spreading their construction operations throughout the entire 6-acre, multi-tiered site, the LLSBC has unnecessarily constrained their ability to contain, collect and properly dispose of the run-off. I’m aware that a staging and drainage plan submission is not required for the 8-24 application, but I can’t unsee what the applicant has presented to other boards as their best idea.

Future concerns: It’s been reported by the neighbors during public hearings that the existing site has often failed to contain its run-off during all rain events. These complaints came specifically from the Muddy Brook neighbors. 

I’m relatively certain that when the project is fully designed by qualified professionals, the final drainage plans would be based on proper calculation to meet applicable code requirements. As a civil engineer by training, not practice, I am familiar with the basic concept of such calculations. I know that the drainage codes are developed to cover most rain events of a particular intensity and frequency. The codes also assume certain absorption values of various surfaces from impervious to pervious to well-draining or most absorbent. 

I also know that improper maintenance of such surfaces adversely impacts absorption values of such surfaces in the long run due to compaction during use. Therefore, a surface such a multi-purpose athletic field loses its absorption ability over time. Furthermore, compacted soil, such as baseball fields, does little to absorb runoff from day one. Grass areas that are used by the public compact over time. 

The areas that do not change their absorption value are open spaces like preserves and agricultural land such as gardens. Native plants and gardens increase infiltration. They clean the water by reducing pollutants that end up in our waterways. With storm events often exceeding their theoretical intensity and frequency, replacing such natural sponges with much less absorbent surfaces such as multi-purpose athletic field is a very poor planning decision. I say this not because I believe that multi-purpose fields need to be excluded from the proposed reconstruction project, I say this because I’ve studied the plans long enough to be certain that the proposed elements, such as the school building, parking, fields and the open space can all fit on this property. In fact, some competent local designers have publicly shared such ideas. 

As an additional recommendation, I’d like the project to consider using natural turf for the proposed athletic fields and the use of a thick layer of well-draining material under it. Also, the proposed parking and drive areas should be designed as pervious pavement, also with a thick layer of well-draining material under them. 

Lastly, to have the new building install rainwater collection cisterns with pumps to be reused as gray water. If implemented, these measures would significantly reduce the need for collection and disposal of the run-off that may otherwise affect the neighborhood during heavy storm events. 

As I mentioned above, the building size as shown would not prevent the site from being developed as I suggested.  However, I still question the size of the proposed building structure. As we all know, it’s ideal for zoning purposes not to overbuild any site.

Building costs and size — A review of comps

In their presentation to the Board of Finance, the Long Lots School Building Committee shared a benchmarking table comparing the costs and sizes of the proposed Long Lots School to five school projects recently completed by their construction manager. 

The table listed “square feet per student” ratios. Every elementary school in this table had a lower ratio than the proposed Long Lots School by 15 to 20 percent. Considering other deficiencies of the proposed design, it would be prudent to ask the applicant to re-evaluate their proposal in consideration of these excessive numbers to see why the building can’t be reduced in size while maintaining its proper function.

Although, this is not a P&Z issue, I’d like to offer this to the government bodies who may be reading this. Apparent deficiencies of this design proposal underscore the need for a competitive bid process. A properly issued Request for Proposal process would allow professional firms to compete on price as well as ideas. The proposers should be tasked to come up with a solution that would design the school with all the required elements while being respectful to the existing land conservation elements that have already been established for the greater benefit of all of us.

Yulee Aronson, PE

Westport