Buckle up and get ready to have some knowledge directed your way! Here at DL Howell, we do things a little differently. Come with me as I take you through an exciting and thrilling situation at New Garden Township which was the result of some cosmic waves and some pretty knowledgeable people making the best of out of a different situation. There are two aspects of the review process. Getting the township on board and meeting technical design requirements. You can have the Tesla of land development designs but get turned down because grumpy old man Jenkins feels like the noise is going to keep him up, even though he can barely hear the board member through his hearing aid, shouting across the room telling him he has an excellent point. Which leaves you scratching your head like a New York Giants fans after their number 6 overall draft pick went to Daniel Jones, the former QB of a powerhouse football program, the Duke Blue Devils. However, when township meetings go well it is a win-win for everyone. To help facilitate this, I motion all meetings shall be held outside when the temperature is 65 and sunny.
We are currently assisting our client, DE Storage, through the approval process of a by-right plan located on a 10-acre site in New Garden Township. DE Storage proposes to construct four self-storage facilities and an office. This past week the final land development plans received a recommendation from the Planning Commission as the members sat around a picnic table while we presented the plans at the first ever outside Planning Commission meeting. There was a mix-up and the township building was locked with no way of getting the keys any time soon. While we were all standing outside some ideas were tossed around such as throwing a rock through the window, so the cops would show up and let us in. Eventually, from the resourcefulness and innovative thinking of DL Howell and New Garden Township, we settled on the idea of using the picnic table outside. Eventually, we gave our presentation with the proposed site across the street as our beautiful backdrop, which I believe assisted in a quick rubber stamp. Here at DL Howell, we’ll have meetings in the rain, snow, or shine to get the proper approvals we need to get your job started and completed as quickly as possible! So, if you need someone to get your proposed project completed give us a call and we’ll be happy to help!
As the years go by, people in every industry are always finding ways to improve different aspects of their respective fields whether it be by coming up with a better process for something or making a better final product. The construction industry is no different. One of the most common materials used throughout the construction industry is concrete. It is the most commonly used man-made material on earth and is used in a wide range of applications from buildings, bridges, roads, pipes, and more.
One of the biggest problems with concrete is that it will eventually crack. Water then gets into these cracks which then can freeze and thaw and make larger cracks or get to rebar within the concrete causing corrosion and eventual failure. Scientists have found bacteria that allows concrete to “self-heal.” It took years of research to find one that wouldn’t compromise the integrity of the concrete, but that could also live dormant in a dry environment for years until needed. The way this works is that the bacteria are put into biodegradable plastic capsules along with a food source and added to the wet concrete mix. When cracks in the concrete occur, water finds its way through and causes the capsules to open. The bacteria then germinate and multiply, and in doing so, they produce limestone which is what closes the cracks. There are some disadvantages to using this self-healing concrete: it can be almost double the price of conventional concrete, and since it makes up around 20% of the volume it can create a shear zone or a fault line.
The ultimate goal is to develop concrete materials that will monitor, regulate, adapt and repair themselves. Self-healing concrete will be able to save lives and resources and significantly reduce life cycle carbon emissions. There is ongoing research to try to improve upon this idea of “self-healing” concrete and one solution being looked at is using a fungus that would act similarly to the bacteria. Other solutions include continuing to try different additives of nano-scale minerals and chemical additives. One other solution may be right in front of our faces though. The ancient Romans built structures such as the Pantheon that still stand today. The secret seems to be a pozzolanic reaction of the material with intrusive water that takes place after construction and produces calcium/aluminum silicate crystals that fill voids and cracks, which strengthens the structure long after the work has been finished.
hand of builder worker use trowel plastering a newly poured concrete floor
Every day scientists and researchers are looking into better solutions for anything that will make our lives better. Phones, cars, and computers are things we use every day, and we notice when a new and improved model comes out. We also use concrete every day whether it be the sidewalk outside, the bridge you drove over, or the building your sitting in right now and we don’t notice them until something is wrong. Self-healing concrete will help to prevent any issues from arising. There will always be research and advancements in all different technologies that will usually go without notice.
No, but seriously is this site safe to dig at? Whether it’s digging holes for soil test, septic testing, foundations, footers, or for an infiltration test excavation can be difficult and tricky work. It doesn’t help when you throw in the ever changing and unpredictable nature, of well nature. Wet, muddy, or steep conditions can cause a bunch of issues for excavation operators. These conditions can cause safety issues, delays, or additional costs that were never anticipated in the first place. Have no fear though, D.L. Howell & Associates is here to help so you have minimal delays and can learn a thing or two about excavation for your intended projects!
Alright, so let’s talk (or read rather) about some basic points/tips for digging safety, these are for providing advice on following standards in excavation and keeping workers safe. These tips will allow you to get a better idea of what is involved in any future projects that you might have.
- What is the difference between Excavation and Trenching? Excavation is any man-made dug out area and a trench is a narrow spot longer than it is wide and must measure more than 15 feet deep.
- Planning Out the Dig and Current Conditions: Excavation or trenching projects are rarely ever the same. Employers must approach each new job with proper care and preparation. Before digging is done a thorough inspection of the site should be completed. If a site is to be excavated the following conditions should be considered before anything else happens. Conditions to consider are when was the last rain/snow storm, is the ground dry/frozen, is the dig location on a slope or high elevation? Proper preparation can not only protect workers (the most important goal), it can reduce costs associated with the project.
- Different Soil Types: Understanding and knowing the difference in compressive strength and stability of the different rock and soil types in the known area. This would include the soils texture, density, porosity, and water-holding capacity.
- Competent Operators: A competent operator is one who is capable of identifying existing and predictable hazards in the surrounding site. It is also one who can take prompt corrective measures to be as safe as possible for the job.
- Dangers for Operators: In addition to the danger of a cave-in, workers need to look out for falling debris, slippery or muddy conditions, and the general hazards from the equipment. This being tipping or uneven load balance on the machine. A good tip for avoiding cave-ins is to have all excavated soil and your chosen digging equipment at least 2 feet from the edge of all dug out edges.
- Accurate Bidding/Cost Analysis: Before all the planning, digging, surveying, or whatever else you might need employers need to look at a variety of factors before making an accurate and competent bid. Such as, local traffic for the dig location, soil classification, surface/groundwater, proximity of nearby structures to the dig spot, weather conditions for the day of digging, fall protection, ladders, and more. By conducting proper surveys,studies, and cost analysis before making a bid, employers can understand the equipment, personnel, and any planning needs they might have.
- Protective Systems for Operators and Individuals in Excavation: In order to protect workers from cave-ins, and other hazards of digging OSHA (Occupational Safety and Health Administration) requires employers to do the following.
- Support the sides of the excavation site to avoid cave ins.
- Place a shield between the side of the excavation and the work area.
- Slope and bench the sides of any dig locations.
- Working around Utilities: Call “One Call” before digging to ensure that the area is marked off and that you do not come across underground utilities, wires, or piping while digging. Ensure that while excavating, that all underground utilities are protected, supported, and not in any danger of being damaged or removed in order to protect workers and any individuals who might be in the surrounding area.
Here at D.L. Howell & Associates we take all precautions to assure that all of our intended digs are as safe and as low budget for customers as possible. So, if you need some holes dug for soil, infiltration tests, or septic testing, contact us and we’ll be more than happy to help!
If you’re looking to develop your lot, you have probably done some homework to make sure everything goes off without a hitch. You’ve checked your zoning regulations. You’ve checked your water and sewer availability. But have you performed a PNDI search for the property?
PNDI stands for Pennsylvania Natural Diversity Inventory, and it is a system put in place by the Pennsylvania Natural Heritage Program to ensure that land development projects do not adversely impact endangered and threatened species of plants and animals. When a PNDI search is performed, the lot and surrounding area are screened by four agencies; PGC, DCNR, PFBC, and USFWS. Depending on the site conditions and other nearby reports, a project may have an impact from one or several of these agencies. If an agency determines that there is a potential impact on an endangered or threatened animal or plant species, you are required to perform specific actions or avoidance measures to minimize these impacts.
While it is difficult to foresee if a project site will get a hit from the PGC, DCNR, or PFBC, there is a little more predictability from the USFWS. One of the most common potential impacts we see is to bog turtles. If a lot and surrounding area (300-foot offset) have or may have wetlands, there is a good chance that the USFWS will request a Phase I Bog Turtle Survey. This survey determines whether or not there is a potential for bog turtle habitat (this survey does not confirm if bog turtles are present, that’s a Phase II survey, but more on that later). If the Phase I survey finds that there is no potential for habitat, the survey report is sent to USFWS for review and verification. But if you contracted one of the recognized qualified bog turtle surveyors (as found on this list, click here) all they have to do is send a courtesy copy to the agency and you can proceed. Using a surveyor that is not on this list requires the USFWS to review the report which can take several months and can put a halt to a fast-moving land development project.
If the Phase I survey finds that there is a potential for habitat, then a Phase II survey must be performed. The purpose of this survey is to determine if bog turtles are present in the wetlands in question. This Phase requires at least four separate field visits for each wetland area, and they can only be performed between April 15 and June 15, which coincides with the period of highest annual turtle activity. The scope of this Phase II survey alone can be a significant impediment to any project. The alternative is to maintain a 300-foot buffer from the edge of the wetlands, which in most cases drastically reduces the developability of a lot.
If your project requires a Sewage Facilities Planning Module or an NPDES permit, you will need to perform a PNDI search. Feel free to contact us at DL Howell to run one for you.