Southland Holdings’ Post

Tectonic Engineering is excited to share our FDR Park Wetlands Mitigation Project overview. The property making up the Philadelphia International Airport (PHL) contains areas of jurisdictional wetlands and waterways subject to federal and state regulation. Tectonic was contracted to provide Construction Management and Inspection services in support of the overall plans to develop a viable wetlands mitigation area to compensate for impacts of proposed and future development of the Philadelphia International Airport. This Project consists of constructing a 29-acre tidal wetland mitigation site at FDR Park. The Work includes: 1. Temporary haul road construction 2. Excavation of a 29-acre tidal wetland basin 3. Testing, sorting, and handling of excavated materials 4. Constructing a soil hill with fill excavated on-site and disposing of residual waste materials in accordance with applicable laws and regulations 5. Retrofitting two historic 3-foot by 6-foot brick arch culverts with tide gate structures 6. Wetland, meadow, and turf seeding 7. Minor grading adjustments for wetland establishment 8. Planting plugs and containerized plants 9. Supplemental seeding for wetland establishment 10. Monitoring and adaptive management plan to ensure site establishment 11. Non-native invasive plant control 12. Removal of haul road and associated sediment controls and fencing. Project challenges included residual soil material testing and handling, working in an active community park, and procuring over 44,000 trees, shrubs, plugs and other vegetation. Congratulations to the team and Tectonic's PA Regional Director Bernard Rohe, PE, MCE, CCM, PMP for a job well done! PIDC, Philadelphia International Airport (PHL) #constructionmanagement #civilengineering #wetlands #mitigation #inspection #enviornmental

This post contains critical information relevant to developers, engineers, and stakeholders engaged in new construction and redevelopment projects. The Mid America Regional Council is making significant progress on a new Stormwater Manual, a crucial resource for industry. A key highlight is the inclusion of a runoff reduction and storage formula, essential for all new and redevelopment initiatives. Collaboration with The Center for Watershed Protection is vital for successful implementation. This manual is largely already a key reference document for construction in the St. Louis region. While the detailed components of the formula is not provided here, interested parties will just have to navigate to our St. Charles Watersheds Alliance "News" page to check it out. https://lnkd.in/gsxhtEjC This approach promises to revolutionize infill development practices, ensuring resilience and mitigating of off-site environmental impacts on communities and watersheds. Yet, although there are some topics I noticed, and that are generally difficult to communicate and demonstrate in this field of knowledge to untrained professionals in any manual, I hope these topics will not be an issue in the final documents. See comments below.... #stormwater #construction #stlouis #development #redevelopment #engineering #greeninfrastructure

Carving around 1,243 miles through lush wetlands, dense forests, and towering cliffs, the Columbia River is a crucial commercial and recreational artery for the Pacific Northwest. So, when the City of Pasco set out on the rare task of installing a new outfall on this significant river to support its growing community, they knew it would require a perfectly tailored approach that includes: 📅 Coordinating permitting and scheduling with many stakeholders. Our team got involved early to model the mixing zones, which assessed how the discharged water impacts the river’s flows, quality, and ecosystem. The study’s results not only informed the design but also the complex permitting process with the Army Corps of Engineers and Washington Department of Fish and Wildlife. Our team collaborated with Environmental Science Associates for permitting, MixZon, Inc. for the mixing study, and William P. Fox from Cosmopolitan Marine Engineering for marine pipe installation advisement. 🐟 Minimizing environmental impact. The permits require all construction to be completed within the in-water work window between August and February, which reduces impacts to wildlife during migration and spawning periods. In the backwaters of the McNary Dam, this section of the Columbia is a protected salmon habitat, so the team used nets to cordon off the site and will restore the ecosystem after construction. 🚧 Delivering a unique assembly and installation process. The construction crew floated sections of the new 42-inch HDPE pipe from the mouth of the Snake River and up the Columbia River until they reached their location at the new outfall alignment. Once all sections were in place, the team completed a controlled submergence process to install the pipeline into an excavated trench on the riverbed—watch the installation process in the video! The diffuser and position of the outfall 1,180 feet into the river provides high mixing under various flow conditions. We recently celebrated the new outfall officially coming online! The second phase of a project that adds capacity to the Pasco Wastewater Treatment Plant, this new outfall will accommodate the increase in treated water discharged into the river. Crews are now working to remove the old outfall and restore the ecosystem at the construction site. #waterengineering #consorprojects

In the dynamic landscape of coastal construction, mastering groundwater control is a critical factor for success. The coastal regions of Georgia, South Carolina, and North Carolina present unique challenges, with high groundwater levels and the constant threat of saturation. Let’s explore the intricacies of groundwater control, the risks associated with its mismanagement, and why the coastal construction industry in South Carolina, North Carolina and Georgia are choosing to work with us: https://bit.ly/4bgexk0

Perry Oakes' Construction Stormwater Tip No. 59: Research at the Auburn Stormwater Research Facility has found that a lot of the under-mining type failures of a silt fence are initiated around the post. The new recommended off-set installation eliminates this issue when installed properly. By offsetting the post 6 in. downstream of the trench allows for the post to be inserted into undisturbed ground. It also allows for better compaction of soil on the silt fence geotextile when filling the trench.

Have you heard opinions like “you have to clean the system every year as a condition of repermit”? This may or may not be necessary based on the system’s use. Typically maintenance is “as needed” and not necessarily on a schedule. The reality is that all properties are different and so maintenance is not a one size fits all proposition. This is why we must first understand the specific requirements of the system found in the Stormwater Quality Management Permit (SWQMP). Our stormwater professionals can help you determine what is needed and when. https://lnkd.in/eevE5mka #stormwater #civilengineering #stormwaterprofessionalsgroup #texas #houston

CAN WE USE DESERT SAND IN CONSTRUCTION? What are your thoughts???

With the ever-present challenge of fluctuating water levels on the East Coast, it's essential to have a solid blueprint in place. Let’s explore the intricacies of groundwater control, the risks associated with its mismanagement, and why the coastal construction industry in South Carolina, North Carolina, and Georgia are choosing to work with us: https://bit.ly/4ajUmAQ

🔍 Just attended a fascinating One-Hour Technical Presentation on "Beneath the Surface: Exploring Underground Stormwater Detention Material Options" by Contech Engineered Solutions LLC! 🌧️🔧 Grateful for the insights shared by Rob Chapman, Hannah Schlachter, Scott Sertich, Chris Landt, and Pat Valentine, P.E. Their expertise shed light on crucial aspects for engineers, providing valuable information to assess and choose optimal detention materials for diverse project sites. 💡 Key Takeaways: In-depth exploration of underground stormwater detention materials. Practical insights to aid engineers in material selection. Valuable considerations for various project scenarios. 👥 Special thanks to Contech Engineered Solutions for sponsoring this enlightening session! 🤝 Let's continue the conversation! Have you attended similar sessions or have thoughts on stormwater management? Share your insights below! #Engineering #StormwaterManagement #TechnicalPresentation #ContechEngineeredSolutions #MaterialSelection #EnvironmentalEngineering #Infrastructure #ProfessionalDevelopment #LinkedInLearning #EngineeringInsights

This Deicorp site, nestled in Rosebery, is undergoing a change in use as it is redeveloped from a commercial and industrial site into a multi-storey mixed-use retail and residential building, overlying basement car parking. EI’s involvement at the site traces back to 2014, when the first phase of the environmental and geotechnical investigation works were completed. Since then EI has provided an extensive amount of environmental, remediation, groundwater and geotechnical advice and reporting to support the development and achieve the City of Sydney consent conditions. This project exemplifies the many advantages of having a one-stop approach for environmental and geotechnical services. #eiaustralia #sydney #engineering #engineeringaustralia #geotechnicalengineering #environmentalengineering #australianbusiness #engineeringproject #construction #development #remediation #remediationactionplan #remediationproject #geotechnicalservices #enviromentalservices