Tyson Griswold, P.E.

12/17/2021

Towns of all sizes need to exhibit resiliency during these times. "Municipal engineering" is a segment of civil engineering. We assist municipalities with design, construction, and maintenance of their critical infrastructure. We also help with land development codes and reviews. Critical infrastructure includes water and sewer pipelines, water and wastewater treatment, roads, and parking, and stormwater and drainage. All of these require long term repair and maintenance plans. These plans need to consider what the critical infrastructure will look like in 20 years.

The problem we have found is that small towns do not usually have the budget for a full-time municipal engineer due to not having enough work for a full time position. That is where Griswold Engineering can help. From the regulatory environment to actual design and planning, Griswold Engineering has a full breadth and depth of experience to be an “on call” municipal engineer for towns

02/19/2021

Septic Issues?

Consider an Engineered Option Permit

The Engineered Option Permit (EOP) is an alternative process for wastewater system approvals implemented in North Carolina on November 1, 2016. It is gaining popularity with individuals, builders and developers who are seeking faster permit approvals and more flexibility when it comes to pretreatment options.

Once a Licensed Soil Scientist has performed a soil and site evaluation, a Professional Engineer will design the system, prepare a Notice of Intent (EOP Common Form) and submit to the local health department (LHD) for a “completeness review”. The LHD has 15 business days to review the EOP package for completeness and, if deemed complete, issue the permit approval.

The Engineered Option Permit allows you to bypass the local health department which provides more control over your septic system needs from the outset of your project.

Septic issues? Have you heard of Engineered Option Permits? The Engineered Option Permit (EOP) is an alternative process for wastewater system approvals implemented in North Carolina on November 1, 2016. It is gaining popularity with individuals, builders and developers who are seeking faster permit...

04/27/2020

What is stormwater and how much does it cost?
During construction, many surfaces are changed from grassy surfaces to pavements. Grassy surfaces are called pervious surfaces. This means water can soak through this surface and make its way to the water table without running off into the local waterway. On impervious surfaces like pavements, water cannot soak into the ground like it does on pervious, grassy surfaces. This causes stormwater to hit the pavement, and run off to the nearest stream. This causes two problems. First since no water soaks into the ground, this means the amount of water that goes into the stream is increased. What once was soaked into the ground, now all runs off into the stream. This can cause an increase in flooding, since the quantity of water in the stream is now increased.

https://www.tysongriswold.com/what-is-stormwater-and-how-much-does-it-cost/

01/20/2020

If you are looking into developing property, especially if it involves cutting in a road, you should at least contact Griswold Engineering for site design advice and planning. We believe in using the existing grade as much as possible to help with rainfall runoff. Instead of crowning a road, or pitc...

01/20/2020

Low Speed Road Building in the Mountains
If you are looking into developing property, especially if it involves cutting in a road, you should at least contact Griswold Engineering for site design advice and planning. We believe in using the existing grade as much as possible to help with rainfall runoff. Instead of crowning a road, or pitching the road into the hill, creating a channel, we recommend considering cross-cutting low-speed roads to the downhill to shed the runoff better. Water simply cascades off to the downhill side. This requires fewer ditches, and provides better slope stability. We recommend a minimum 2% cross-slope to the downhill.

This road was cut in Spring of 2019. It’s still raw, but you can tell it has held up well with some very large rainfalls. No scouring of the riding surface, nor rutting has been observed. Since this is a low speed driveway, a super-elevation is not required to maintain high speeds.
https://www.tysongriswold.com/cross-cutting-recommendations-from-griswold-engineering/

11/21/2019

Winter planning for commercial site design

Most site designs require grading and drainage, stormwater treatment and flow equalization, sediment and erosion control, domestic water connection and wastewater/septic treatment and disposal, and ALL of these require permits.
Permitting requires designs and blueprints or site-plans. If you are thinking about doing this so you can begin construction immediately after winter, contact me at (828) 393-5820 or [email protected], and we can get started with permitting this winter, when the weather doesn’t allow for efficient construction.

Most site designs require grading and drainage, stormwater treatment and flow equalization, sediment and erosion control, domestic water connection and wastewater/septic treatment and disposal, and ALL of these require permits. Permitting requires designs and blueprints or site-plans. If you are thi...

09/26/2019

Announcing civil-site design services for Design Build Teams

Site Design Services for Design Build Teams
Griswold Engineering & Environmental, PLLC specializes in commercial site design services for Design Build Teams. We offer unmatched experience, knowledge, flexibility and diversity for a small civil design firm.

Schematic Site Design for Design Development
Grading and Drainage with cut/fill calculations
Stormwater Design and Permitting
Erosion Control Design Permitting
Roads, driveways, parking, and pavements
Wastewater collection, treatment and disposal
Water source development
Phase I&II ESA
Septic EOP

Griswold Engineering & Environmental, PLLC specializes in commercial site design services for Design Build Teams. We offer unmatched experience, knowledge, flexibility and diversity for a small civil design firm. Schematic Site Design for Design Development Grading and Drainage with cut/fill calcula...

04/03/2019

During construction, many surfaces are changed from grassy surfaces to pavements. Grassy surfaces are called pervious surfaces. This means water can soak through this surface and make its way to the water table without running off into the local waterway. On impervious surfaces like pavements, water cannot soak into the ground like it does on pervious, grassy surfaces. This causes stormwater to hit the pavement, and run off to the nearest stream. This causes two problems. First since no water soaks into the ground, this means the amount of water that goes into the stream is increased. What once was soaked into the ground, now all runs off into the stream. This can cause an increase in flooding, since the quantity of water in the stream is now increased...https://www.tysongriswold.com/what-is-stormwater-and-how-much-does-it-cost/

01/08/2019

Q: What do site civil engineers do?
A: Site civil engineers produce “site plans” which primarily perform engineering design and consulting on all construction that takes place outside 5 feet of a proposed building. Anything that requires a building setback can fall within this scope.

• This includes everything to do with dirt and water on a proposed site
• Land grading and site balancing
• Stormwater Design and Permitting
• Erosion Control Design Permitting
• Wastewater collection and treatment/disposal
• Water source development

If you are looking at any type of construction and need a site plan, or construction management consulting, contact me at [email protected] or (828) 393-5820.

https://www.tysongriswold.com/what-do-site-civil-engineers-do/

11/06/2018

100 year old wooden water pipe.

Workers digging just outside Charleston's main water plant recently unearthed a 20-inch diameter pipe nobody knew was there.

10/24/2018

If you Design Build… What permits are needed at the beginning? What is the zoning? What are the parking requirements? How do I get water to the site? Do I need stormwater? What do I need for erosion control? What is “stormwater” anyway? If you are at this point, what you will need is Land Planning. Let’s get an idea of what you can do with your property by Land Planning

We have long time experience within and navigating the the regulatory environment, and can bring your project through from beginning to end.

We are a full-service firm who not only can perform all the technical work, we can provide valuable experience in promotion and exposure to local governments to steer your project through local governing authorities. With our experience, we can move from approvals to construction instantly. Since we are also civil engineers, we work hard to produce “buildable plans” from project inception all of the way through project approval.

  If you Design Build... What permits are needed at the beginning? What is the zoning? What are the parking requirements? Do I need stormwater? What do I need for erosion control? Is a septic tank required? What about a well? What is “stormwater” anyway? If you are at this point, what you will ...