Design & Documentation. 12"W X 23 7/8"L X 1-1/2"D Heavy-Duty Rated Type A Grate with Type T frame. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Open Menu. Jan 18, 2021 - Explore Ingleside Kennels LLC's board "Drains and Runs" on Pinterest. See more ideas about drainage solutions, drainage, trench drain. When the grating is properly anchored and the span is continuous over 3 or more supports, the. load rating. Or call us at 888-825-4716. Visit the page to discover the full list of features and benefits. is a leading manufacturer of quality engineered plumbing and drainage products in the non-residential construction industry. 4" Josam Glass Fiber; 4" Ulma Polymer Conc; 4" Ulma Multi-V Conc;The airport consulting engineers configured a series of concrete firestops into each run of trench with the sluice gates that can be remotely activated and closed to prevent fuel from flowing into storm drains in the event of a spill. Manufacturer Zurn. Trench Drain Literature I United States I Eric'sons Dura Trench. The first key part of the process of adding a trench drain to concrete is the design. O. Manufacturer EJ (formerly East Jordan) 10" Wide Frame and Grate Bolted Assembly 2" Deep. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. SAFETY. Load class A is 15 kN (3372 lb), B is 125 kN (28,100 lb), C is 250 kN (56,200 lb), D is 400 kN (89,920 lb), E is 600. Learn about our line of Filcoten Trench Drains!Prefabricated Trench Drains; Radius & Curved Trench Drains; Slot Drain; Stainless Steel Drains – Linear & Floor. Trench Drain. Drain Systems. Last updated: Wednesday, July 12, 2023. We have trench drain frames for pedestrian to aircraft applications. 45 M] lengths with interlocking ends and radiused bottom. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;A 6″ x 10″ test block is specified for trenches between 8″ and 12″. Call today to 610-638-1221 and speak with our drainage solution experts. Cleanouts. OSR Login. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits. Reach out today!Since an investment in installing a trench drain system ought to be a long-term one, the decision to choose a stainless steel trench drain is a wise one. Where to buy. Bronze & Aluminum 4″ Point Drain Grates. Neenah R-3475 to R-3499 Airport Castings; Neenah R-3501 to R-3808 Roll & Gutter Inlet; Neenah R-3900 to R-4018 Bridge Scupper; Neenah R-4028 to R-4976 Drainage Grates;. 47 pm local time (5. load rating; or heavy duty: max 40,000 lbs. NFP was a partner in the construction of the two walkback tunnels at the airport; both were design-bid-build projects. Neenah Foundry . ca@bg-graspointner. Or call us at 888-825-4716. 34-18 Northern Blvd, Long Island City, New York 11101. Manufacturer EJ (formerly East Jordan) 34" Wide Bolted Assembly Z4 Frame. Our trench grates are offered in the following sizes: 3″ trench drain grates , 5″ trench drain grates , 8″ trench. Products. 5. n is the coefficient of friction of the trench drain body (concrete forming systems = 0. For trench drains in a grooming area, consider a larger catch basin with a trash bucket to keep hair from getting into the system. National distributor for superior quality trench drain systems. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. It requires that the iron. Trench drain systems can quickly remove water from these areas, keeping runways and taxiways safe for aircraft and ground vehicles to use. Trench drains can come in many shapes and sizes, but the tips that you need to keep in mind should apply to all of the trench drains that you will ever need to place. (770) 505-6575. Neenah R-3492-CG Airport Castings: ManholeFrames and Grates. All There is to Know About Trench Drains for Breweries. The system can be extended upwards of 196 linear feet. Dura Slope offers versatility and easy installation featuring interlocking joints that snap-together. There will be a detrimental impact on a surface with an improper surface drainage system, which will then affect the subsurface drainage. Dura Trench prefabricated trench drain systems are our most popular product line. Easy Drain Series Black 90 Degree Corner for Modular Trench and Channel Drain Systems 7-in L x 1-in W Square Corner. OSR Login. The modular design of our Pro Series Channel Drains offers flexibility with interlocking joints that offer quick and easy connections. R-4990AX A 8 Wide Unbolted Slotted Grate. Installation. Our resolution to better our planet extends throughout the company with our employees. Pool deck trench drains collect water and direct it to a safer output location. We recently completed a large trench drain project at DFW Airport Hardstand with Austin Bridge and Road. R-4990AX E 8 Wide Unbolted Vented Lid. Products. Stainless steel trench drains are also good at withstanding excessive temperatures and resisting scaling, making them just appropriate for application in facilities that see excessive heat or. Airport Drainage Inlet Frame - Gray Iron Grate and Frame - Available With Type "C" Solid Cover. A is the cross-sectional area of the trench drain in square feet. Trench Drain Length Needed - Please enter the length needed. XHD 8″, 12″, 18″ advanced heavy-duty trench drain grate design is not only attractive, but it also provides strength and performance. Airports. L Trench and Channel Drain Kit (6-Pack)All drainage grate assemblies (the grates and the frames that surround them) perform the same tasks: They capture water runoff and transport it to a tube or pipe, reducing ponding. 157″ thick at trafficked edges and 0. Systems includes:The application proof load is variable, but the maximum proof load is 100,000 pounds. Add to cartPaveSlot Gatic Slot drain is used to drain external hard surface areas. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;Complete Trench Drain Kits in Zurn Z886 6 inch wide. R-4990 Forming Instructions. This general purpose drain can handle flows in the 35 cfs (15,500 gpm) range. Professional trench drain installation services by Trench Drain Services (TDS). ACO Drain consists of cast polymer concrete bodies with either galvanized steel, stainless steel or cast iron wearing edges. L Trench and Channel Drain Kit with Black Grate (3-Pack : 9. An encasement of 6" around and 6" below is suitable for medium duty traffic, class B, C and D. The brochure also showcases some of the projects that have used U-drain and provides contact information for dealers and distributors. 38" Dia. Home; Manufacturers; Grates; Residential;. 29 3/4" Wide BOLTED with Frame TRANSVERSE DRAINAGE STRUCTURE. Major airports like Dallas-Ft. We know each site has unique needs that aren’t the same. 27" Diameter. 29 3/4"W X 18" L X 2 1/2"D. 00 airport temporary berms (type b) 0025030a cuyd 1. Airport Rated Type A,D Grate. Europe, Middle East, and Africa (EMEA) 800 626 4653 Locations Careers Contact Us. 37” (1M) nominal length utilizing tongue and grove connections for channel alignment and sealing. Generally speaking, 4" around and 4" below the drain is suitable for pedestrian traffic or class A. 3/4. Standard sizes up to 48" x 48". S. Products. Add to cart. NDS Pro Series Channel Drains are lightweight, but feature side ribs and thick channel walls for added strength. Asia-Pacific. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;External CSF Drainage System Integrated solution for the CSF patient disorder Because we are committed to limiting uncertainty, the Integra External Ventricular Drainage Solution accompanies neurosurgeons and neuro-intensivists in every step from the opening of the cranium to the drainage of CSF. R-4990AX D 8 Wide Unbolted Solid Lid. 010, fiberglass & GFRPC systems 0. 10" Height. H-20 load ratings are a standard set by the American Association of State Highway Transportation Officials (AASHTO). © Savannah Construction and Preservation / Website by Hazel Digital MediaTrench Drain Installation Tips For Existing Concrete - Eric'sons Manufacturing. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits; Ulma U100K Polymer Concrete - Galvanized Edge Complete Kits. Medium Duty. Zurn manufactures a complete line of Transportation Linear Trench Drains for a wide variety of applications. OSR Login. Employing a solid cover or grating that is flush with the adjoining surface, this. 197” [5mm] up to 19. Bridge decking is often the preferred heavy-duty grating for applications subject to repetitive impact and loads. This precast trench drain system comes standard with 0. 26″ Wide Trench Drain Grates. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. 39" Wide Trench Drain Grates. Zurn Z882 12" [305 mm] wide pre-sloped trench drainage system. This Linear trench drain has combination tie-down/levelling devices at 20-inch intervals. Extra heavy duty. <iframe src="height="0" width="0" style="display:none;visibility. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;Trench drains in animal areas should have hair strainers at the outlet to minimize pipe maintenance. Contents of this tank are then discharged to the City of Wichita (COW) sanitary sewer service main. (770) 505-6575. This prevents the deck surface from becoming slippery and hazardous. It is hard to argue that plastic is not an easy and reliable trench drain material for a wide array of drainage needs. Kipp specified a hinged trench drain grate system with an extra heavy-duty load rating suitable for airport construction applications. Class D frames shall be 0. This means that the run-off that is in one section of your property will not spill over onto another section. Open Menu. Our Spee-D Channel Drains come in lightweight sections that quickly snap together and are highly versatile so they fit a variety of pipe sizes. In addition, slot drains are also designed to be easily compatible and integratable with transition pits as well as elbows, making the installation process quick and less time-consuming. Ductile Iron Manhole Grate and Airport Frame -. Manufacturer Zurn. English. 8 ft) Shop this Collection. Whether you’re looking for replacement cast iron trench grates or a newly installed. 4 in. Pro Series Channel Drains Patios, Driveway, Sports Fields. Pre sloped in a variety of grate options. 5%, . 039″ thick at grate seat. 38" Dia. Another key benefit of trench drain systems is that they can help to improve airfield safety. Kipp specified a hinged trench drain grate system with an extra heavy-duty load rating suitable for airport construction applications. Trench drains are the easiest solution for many kinds of drainage needs and they will be the best solution for most of your drainage needs. ACO’s Infrastructure range includes: Road drains with removable grates. Provide a cleanout port compatible with the manufactured system for Type I drains at the drain to drainage structures. n is the coefficient of friction of the trench drain body (concrete forming systems = 0. 5% slope built in but can be manufactured with any slope specified. Rectangular Trench Frames & Grates; Round Cast Iron Grating; Grate Seating & Styles; USF Pipe Grates 5600-5625. 1. The trafficked edges shall meet a specified thickness. Contact Us. During his 30-year career as a concrete construction professional, Glen found himself wondering why standard industrial drainage plans so often call for an. Airport Drainage Inlet Frame. Water pooling in an airport is a risk. Now it is time to calculate the channel flow capacity to determine what size trench may be required for your application by using this formula: Qc = A* (1. 2 1/2" Cover Thickness. Products. 4 in. A 6″ x 10″ test block is specified for trenches between 8″ and 12″. 29 3/4"W X 18" L X 2 1/2"D. The project scope included 95,000 sy of 17” PCCP. Design & Documentation. Z886 Bag 8499 Grate Hardware SS Hex Head 4 Locks. Excess water saturates the soil, gets muddy, and attracts bugs and pests. Trench drain systems also can improve the overall aesthetic of. Installation. 24" i. pdf. Stored runoff then gradually infiltrates into the surrounding soil. 00. Government facilities often cannot afford to be shut down while new drainage is being installed. MANHOLE FRAMES & COVERS. urban trees. These trench drains are capable of supporting the heavy wheel loads of today’s commercial environments. Effects on the Runway. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;. Traditional surface water drainage systems often involve large, unsightly catch basins or drain boxes. (770) 505-6575. Price $1,264. The drain can be. Design & Documentation. 00 airport underground cable (1/c,#8 awg, 5kv) 0092068 lf 1. Design & Documentation. Think Global, think Integra’s ExternalOther features include security bolting and bolting tabs to secure tree guards. Products. Trench drain systems have become increasingly popular in recent years for their ability to manage stormwater and surface water runoff at airports effectively. Contact Us. Products. 21 3/8" x 31 1/8" Dia. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah. 1 Neenah Foundry Airport Trench Drain R-4990 Type Grate. During cold season aircraft deicing, this flow is diverted to a 140,000 gallon storage underground glycol collection tank located adjacent to Gate 8. Choosing the Right Size for Your Trench Drain . Pedestrian traffic only: safe load < 2000 lbs. n is the coefficient of friction of the trench drain body (concrete forming systems = 0. The Dura Trench fall newsletter highlights a small portion of the work that we have been doing in the last few months. NDS Pro Series Channel Drains are lightweight, but feature side ribs and thick channel walls for added strength. OSR Login. Our Micro channel drain sections snap together easily to make installation fast and simple. 12″ Wide Trench Drain Grates. Trench Drain Systems is a leading supplier of channel and trench drain from the top manufacturers in the drainage industry. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. From custom drains to custom grating, there is a solution for any need when you work with Dura Trench professionals to care for your drainage solution needs. Since MKE was using FAA Airport Improvement Project dollars, the system also had to be "Made in the USA. There are many different levels of load rating. One way weather impacts airport operations in wet conditions is by causing sliding for a plane due to the lack of grip. The aviation industry is full of fire hazards, one of them being the structures in which aircrafts are stored: aircraft hangars. Airports are environments in which drainage solutions with very specific requirements are required. Contact our experts for a fast quote, call 610-638-1221 or shop online. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits; Ulma U100K Polymer Concrete. These kinds of drains can be placed in. The watershed conveys the water runoff into a drainage system, whether it’s a type of basin, a trench drain, or a storm sewer. 1M. 10 airport fertilizing. OSR Login. As you consider adding or upgrading your drainage system, you may have a lot of questions about how the process works. Price Call for Quote. Or call us at 888-825-4716. Airport and port trench drains are designed with large flow capacities to accommodate high volumes of water. Applications. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;. We understand badging, escorts, FOD control, and the technical details of successfully completing airport trench drain installation projects. (770) 505-6575. Effects on the Runway. Hi-Cap® Slotted Drainage System. For Decorative SS Grates. ABT Drains manufactures surface drainage solutions and water management systems, including Trench Drains and Low-Impact Development Solutions. Learn More. This trench grate series represents Neenah’s best hydraulic performance. T; INDEX 235; Valve Boxes & Access Covers; Airport Products; 8700 Steel. Austin Bridge and Road seemed to effortlessly install the 3300. 34"W X 24"L X 2"DFor a trench drain grate we use the width of the trench grate as the size. Please include the unit of measurement (ie feet) Our trench drain is sold in meters and we will convert your request to the nearest meter. Pavers & pavement. Trench receiver flanges can be molded in to accept trench drains or slotted pipes. View Product Details. Durable trench drainage and water management products, commercial trench drains. TREE GRATES. NDS Dura Slope is a high quality, dependable and best in class trench drain system that meets a variety ofSend Us a Message. com 514. Different types of surfaces drainage systems are open drains, humps and hollows, levees, and grassed waterways. Standard sizes up to 48" x 48". Channels. 12" Wide Airport Neenah R-4993-CB Series Trench Grate and type T Frame. Installation. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;Trench drains work well near pools and fountains, walkways and roadways, and also in yards and landscaping areas. ACO Sport - Sport venue drainage. Our mini drain features a flying buttress design that provides load-bearing support from both sides and underneath. B/PB did notTrench drain applications for commercial and industrial trench drain projects such as roads, airports, ports, transport, parking, government, landscaping. 5/6. Class E and F according to design but not less than class D. Decorative and Safety Bollards at LGA. Trench drains, also known as channel drains, are perfect for diverting. 23 3/4" x 35" Dia. Why? Well, that is because a loose bolt has the potential to be. has worked with many state transportation departments to design products for the. Use an outlet pipe with 4″ diameter in areas that will see fecal matter or hair. Products. R-4990AX 8 Wide Cut Sheet. Sidewalks and. 34" Wide Airport Neenah R-4990-KA-2 Series Trench Grate and Frame. 013, polymer concrete systems 0. Applications. One way weather impacts airport operations in wet conditions is by causing sliding for a plane due to the. Prefabricated Trench Drains; Radius & Curved Trench Drains; Slot Drain; Stainless Steel Drains – Linear & Floor. Common applications include bridge floors, highways, inlets, and airport trench drain covers. OSR Login. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;EJ USA airport castings are offered in many styles: round or square manhole covers, catch basins, drainage inlets, trench grating and mooring eyes. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits; Ulma U100K Polymer Concrete - Galvanized Edge Complete Kits. View All. 009) R is the hydraulic radius which is calculated by A / P where A is the cross sectional area found above and P is the perimeter surface of the trenchAirport trench drain projects are no stranger to Eric’sons. 3 Site SlopesThe Definitive Guide on Pool Deck Drainage Systems. 23 3/4" x 35" Dia. Permavoid [email protected] purpose, to allow various. 236 sq. Josam offers a complete line of 316L austenitic stainless steel Push-Fit pipes, fittings, and accessories. 5" , 6" , 8" and 12" wide. Not only can these drains be used for airport drainage like at a municipal airport, but also can be used for heavy duty applications such as vehicle parking, commercial. Contact Us. TrenchFormer XHD’s patented cast-in-place trench. Top Rated. The length of most channel drain grates on our site is 24″ long. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Class C frames shall be 0. NDS experts can help solve your problem. U. In addition, it can be difficult to convey flow from a largeSlip Resistance of Trench Drain Grates; SDS (safety data sheets) Hydraulic Design; Chemical Resistance; Material Properties; Advanced Polymers; Trench Drain Joint Sealant; Trash Baskets for Basins; Applications. On active runways, taxiways and tarmacs, N-12 pipe provides a durable solution for storm water management. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;8″ Wide Trench Drain Grates. Zurn Z874-12 12" Wide Trench Drain; Zurn Z874-18 18" Wide Trench Drain; Zurn Z874-21 21" Wide Trench Drain; Zurn Z874 Utility Trench; 6" Wide Z806 Trench Drain By Item;. home • categories • manufacturers • contact • cart. One of the reasons that trench drains are the best solution for drainage at an airport is because they are so low-profile. With our. We have audited the compliance of the Louis Armstrong New Orleans International Airport (the Airport), a component unit of the City of New Orleans, with the compliance requirements described in the Passenger Facility Charge Audit Guide for Public Agencies (the Guide), issued by the Federal AviationNeenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;. Instructions: The following standards are from AC 150/5370-10, Standards for Specifying Construction of Airports. 5 FINDINGS FINDING 1 – Before 1999, B/PB had no projectwide design standard for trench drains. There are a few main considerations when planning the drainage system for an airport. Americas. All airports need an appropriate trench drain system, which is reinforced and locked down with the use of bolts. The 300 series is made of fiber reinforced concrete channels. Due to the fact that trench drains are so widely applied for all of these different needs, there are many kinds of prefabricated trench drains out there as well as all of the companion products to make your drains work correctly. Meagard Landscape Trench Drain; Ulma MultiV 100 Trench Drain Complete Kits. Blog. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. BMP 6. (770) 505-6575. Trench Drain Systems offers TDS cut sheets for the 3000 series, FP 1200 and SS [email protected] underground pipe carries stormwater from roof runoff to the dry well, where it collects and seeps into the soil over time. 1 Bag Per Channel. A trench drain is a linear drainage application used to catch, collect and convey water from a starting location to and an outlet or catch basin. We have experience installing trench drains in active airfield environments at some of the largest airports in the country. 04% (1/8" [3. Airport and Extra Heavy Duty Trench Drainage. We recently completed a large trench drain project at DFW Airport Hardstand with Austin Bridge and Road. Commercial tires and tractor trailers: safe load 5,000 – 7,499 lbs. ACO Wildlife - Amphibian eco passages. 1500 . Concrete encasement depends on the load rating one wants to achieve. Other setups use French drains to direct runoff along the natural drainage path to the dry well. Airport trench drains are typically made of durable materials like concrete or polymer composites, ensuring their resilience to heavy loads and corrosive substances such as jet fuel, de-icing chemicals, and oil leaks. As with all our Dura Trench linear drainage. 44cm) N-12 pipe. ada compliant trench drain grate aerospace aerospace trench drain aircraft rated trench drain airport trench drain chemical trench drain circular drain commercial trench drain curved slot drain curved trench drain. We understand badging, escorts, FOD control, and the technical details of successfully completing airport trench drain installation projects. Where as…. 5445 sales. Why trench drains fail - Part 1. From custom drains to custom grating, there is a solution for any need when you work with Dura Trench professionals to care for your drainage solution needs. High density polyethylene structural composite drain channel with . Contact Us. You construct it by digging a 6-inch wide trench approximately 24 inches deep. Kerb inlet drains. Co. How Fast Do Cast Iron Trench Drain Systems Rust? - Eric'sons Manufacturing. The Company is the largest independent foundry in the US and produces gray and ductile iron castings. Low-Impact Design & Environmental Catalogs. Airport extra heavy duty: max 200,000 lbs. Common applications include bridge floors, highways, inlets, and airport trench drain covers. Dura Slope Trench Drains Driveways, Parking Lots, Courtyards. They make it possible for standing water to be removed and for wastewater to be drained away in areas where work processes are conducted. An effective airport. 51" Wide Airport Neenah R-4990-OA Series Trench Grate and Frame. Configure. Choose the Right Material Airports require the most heavy-duty drainage system on th Whether you have a county, municipal, or international airport, it’s important to carefully consider the drainage system you choose. Click here to read more. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;40 3/4" x 99 1/2" Dia. Trench drainage, also called strip drains, is a very common pool drainage. 27" Airport Manhole Frame With 2870 Ductile Iron Type M Flat Grate. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah R-4028 To R-4055 Sewer Pipe Grate; Neenah R-4215 to 4360 Beehive Grates;Concrete trench drain are made from a polymer modified concrete and when outfitted with the proper steel grate, can hold the loads from the heaviest equipment.