The trafficked edges shall meet a specified thickness. n is the coefficient of friction of the trench drain body (concrete forming systems = 0. A Treadsafe option is available, which reduces the slot opening from 30mm wide to 2 x 9mm wide slots. INDEX 261 or 295; INDEX 273; Type K Grating F. Products. 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;. Two main standards are used in the US for trench drain: ANSI A112. Trench drain systems are often the most effective and least costly solution for drainage installation in many applications. 34-18 Northern Blvd, Long Island City, New York 11101. Whether you’re looking for replacement cast iron trench grates or a newly installed. A cast-in-place trench. Common applications include bridge floors, highways, inlets, and airport trench drain covers. ACO offers an infill and solid range in single part, 2 part, 3 part, trench run and multipart configurations. 1500 . Linear Trench Drainage Grates. Trench drain systems can be designed to blend seamlessly into the surrounding environment, providing an aesthetic improvement that can enhance the. 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. Airport and Extra Heavy Duty Trench Drainage. Government facilities often cannot afford to be shut down while new drainage is being installed. Suitable for aircraft loading per FAA Advisory Circular AC150/5320-6D. Plywood – Dura Trench ships their trench with plywood in the top to keep the concrete out and give you a place to brace the trench. Always make sure that you work with a drainage installation expert if you are not sure about which kind of drains you might need in specific areas of your business. Traditional surface water drainage systems often involve large, unsightly catch basins or drain boxes. View All. Page navigation. Pre sloped at 1%. 29 3/4"W X 18" L X 2 1/2"D. Installation. 1 Neenah Foundry Airport Trench Drain R-4990 Type Grate. 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. Airports are environments in which drainage solutions with very specific requirements are required. This is a concern that many businesses share, which is part of why trench drains are so ideal in these situations. Modular polymer ducting system with. Trench drain grates are one of the most customizable parts of your drainage system, and they are the easiest part of the drainage system to care for as well. L Trench and Channel Drain Kit with Black Grate (3-Pack : 9. During this initial stage, input is needed from the hangar's future owner about his aircraft fleet. Airport rated trench drains and extreme loads trench drains are difficult to obtain and Vodaland strives to make these rare products easily obtainable for our customers. home • categories • manufacturers • contact • cart. NDS Micro Channel Drain Systems are engineered with recessed grate openings and improved runoff capture for residential applications. Airport Drainage Inlet Frame - Gray Iron Grate and Frame -. Airport Drainage Inlet Frame. 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. Neenah R-3492-B Airport Castings: ManholeFrames and Grates. Design & Documentation. Airport Drainage Inlet Frame - Gray Iron Grate and Frame - Available With Type "C" Solid Cover. Interceptors. These kinds of trench drains are used in all kinds of locations like parking lots, commercial buildings, airports, bus terminals, and even in homes for runoff from decks or around fountains and pools. Also, infiltration may be less feasible in tidal areas (due to high water tables) or in karst regions (due. See more ideas about drainage solutions, drainage, trench drain. 12"W X 23 7/8"L X 1-1/2"D Heavy-Duty Rated Type A Grate with Type T frame. The length of most channel drain grates on our site is 24″ long. The first tunnel was in 2001-2002; the second in 2008-2009. It is used for the rapid evacuation of surface water or for the containment of utility lines or chemical spills. com;Stormwater Drainage; NPDES Phase II Storm Water Products; Trench Drainage;. 14″ Wide Trench Drain Grates. Design & Documentation. Our Micro channel drain sections snap together easily to make installation fast and simple. Compact Black 5. 20″ Wide Trench Drain Grates. is a leading manufacturer of quality engineered plumbing and drainage products in the non-residential construction industry. The project was shipped in 16′ trench drain sections. 37” (1M) nominal length utilizing tongue and grove connections for channel alignment and sealing. Products. 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;. Class D frames shall be 0. 21. In East Boston and elsewhere, these drains have failed apparently because of poor design and inadequate design oversight by B/PB. Trench drains, also known as channel drains, are perfect for redirecting water away from . You will need to assess the volume of wastewater and related debris that is generated during a normal. Our BoOF (Baked on Oil Finish) process can also be applied to any ductile iron grates offered by Trench Drain Systems. 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. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Manufacturer EJ (formerly East Jordan) 10" Wide Frame and Grate Bolted Assembly 2" Deep. 10" Height. Installation. Finding the Right Airport Drainage Systems. Shop this Collection. 5" , 6" , 8" and 12" wide. Neenah R-3477-A Airport Castings: Inlets. 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 and slot drains are the ideal drainage solution in a wide array of applications, and you will find that these are also cost-saving drain styles for most installation processes as well. 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. Gulfstream Aerospace Utilizes New DuraTrench Non-Conductive Utility Trench February 13, 2021. sales. In some cases, the ground surface is shaped or graded to create sloping toward the channels. The project scope included 95,000 sy of 17” PCCP. ADA compliant designer grates and light duty grates are designed for pedestrian areas. Why Do Airports Need Trench Drains? Trench drains play an indispensable role in the effective functioning of airports worldwide with enhanced safety, infrastructure longevity,. 1500 . Furnished in 18" Sections. This drainage system redirects water to a roadway drainage system and disperses it away from the trench drain area. Neenah Foundry manufactures a wide variety of beautiful cast iron tree grates and fabricated steel tree guards. The length of most channel drain grates on our site is 24″ long. The maximum drainage area to a single infiltration trench should be restricted to no more than five acres. Common applications include bridge floors, highways, inlets, and airport trench drain covers. Airport and port trench drains are designed with large flow capacities to accommodate high volumes of water. Installation. 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. S. N/A. The more customized you need your drainage solution to be, the steeper the cost, but trench and slot drains can often be purchased prefabricated. 1M and DIN 19580. More Options Available $ 152. 00 airport temporary berms (type b) 0025030a cuyd 1. 10" Height. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits. We know each site has unique needs that aren’t the same. The MEADRAIN S drainage system is perfectly suited for pedestrian zones as for industrial areas with heavy duty traffic. 3/4. OSR Login. OSR Login. 38″ Wide Trench Drain Grates. Trench drain systems can be designed to blend seamlessly into the surrounding environment, providing an aesthetic improvement that can enhance the overall look and feel. Weeping tiles are the most effective way to flush water. Add to cart. Our standard slot pipe product line is offered in 4″, 6″, 8″, 12″, 15″, 18″, 21″, 24″, and 36″ widths. 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. 33" / 34" Wide Trench Drain Grates. A Trench Drain Physically Separates 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;Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Slot Drain® Systems was the world’s first slotted trench drain solution that excluded traditional grates. Price $160. Blog. Since MKE was using FAA Airport Improvement Project dollars, the system also had to be "Made in the USA. OSR Login. Installation. View Complete line of Z886 Grates . When it comes to drains, size matters. 4 in. Home » CommercialEverything to Know About Truck Dock Trench Drain Systems. 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. 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. TrenchFormer XHD . It is ideally suited for a variety of commercial and industrial applications. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits. Number of each type of aircraft in the fleet. Our trench drains provide a durable and reliable solution for any project. Last updated: Wednesday, July 12, 2023. " In March 2015, MKE approved the 6906 Hinged Trench System by EJ for the airport construction project. Products. O. Zurn manufactures a complete line of Transportation Linear Trench Drains for a wide variety of applications. A 6″ x 10″ test block is specified for trenches between 8″ and 12″. Product comes in pre-sloped 8′ lengths with heavy plywood cover and installation aides standard. (770) 505-6575. Dura Trench offers a wide selection of trench drain frames to meet any loading or traffic type, check them out here. Price $3,309. Trench Drain. 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. A trench drain (also channel drain, line drain, slot drain, linear drain, or strip drain) is a specific type of floor drain containing a dominant trough- or channel-shaped body. Effects on the Runway. 21 3/8" x 31 1/8" Dia. 375/. 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. Bronze & Aluminum 4″ Point Drain Grates. 49/n)* (R)^2/3* (S)^1/2. Widths: From 8" To 51" Wide Material: Cast Iron Finish: Raw - Unpainted Depths: 2" Deep . Airport trench drains. Class D frames shall be 0. Pre-cast Trench Drain-PP18: The pre-cast trench shall be manufactured using polyester polymer concrete consisting of pre-sloped channels with 18” (457mm) nominal inside width with trapezoidal bottom as shown on the plans. There is actually a fairly minimal amount of excavation that is necessary to place trench drains, and it is relatively fast and easy. Double Ductile Iron 2-Piece Grate and Airport Drainage Inlet Frame. Other setups use French drains to direct runoff along the natural drainage path to the dry well. 078″ thick at trafficked edges and 0. Neenah R-4990 Airport Trench Grates; Neenah R-4996 Self Forming Trench Pan; Neenah. Pool/Spa Drainage Tri-fold. 00. TRENCH DRAIN. 00. Digital tools to support trench drainage and surface water management design 24/7 - Visit: the East Boston roadways, these trench drains failed because the impact of traffic dislodged the unbolted grates covering the trench drain. Excess water saturates the soil, gets muddy, and attracts bugs and pests. Home;. 0092012 lf 1. Airport Drainage Inlet Frame - Gray Iron Grate and Frame. Trench drain systems can quickly remove water from these areas, keeping runways and taxiways safe for aircraft and ground vehicles to use. If you are a human seeing this field, please leave it empty. Being sure that roads and runways will not suffer from flooding is important for so many reasons. Neenah R-4990-CA Airport R-4990-CA Cut Sheet. Traditional surface water drainage systems often involve large, unsightly catch basins or drain boxes. Gray Iron Manhole Solid Lid and Airport Frame -. In fact, ABT Inc. Trench drain systems also can improve the overall aesthetic of an airport. NDS Filcoten Trench Drains are made from high-performance fiber reinforced concrete, designed to handle heavy loads. Trench drains are necessary to deal with this kind of water runoff to prevent accidents and unnecessary risks to air traffic of various kinds that need to pass through the airport daily. Generally speaking, 4" around and 4" below the drain is suitable for pedestrian traffic or class A. Kerb inlet drains. Cleanout/Monument Boxes. One way weather impacts airport operations in wet conditions is by causing sliding for a plane due to the. The drain can be. We have trench drain frames for pedestrian to aircraft applications. A linear system of grates can capture a vast volume of water from a site—one reason they are favored for airports and highways. Products. Kipp specified a hinged trench drain grate system with an extra heavy-duty load rating suitable for airport construction applications. Neenah R-3475-A Airport Castings: Inlets. Prefabricated Trench Drains; Radius & Curved Trench Drains; Slot Drain; Stainless Steel Drains – Linear & Floor; Utility Trenches; Trench Forming SystemsACO is committed to designing and producing the best solutions to water management. Finding the Right Airport Drainage Systems. Heavy Duty polymer concrete trench drains with ductile iron grates to achieve maximum load bearing and durability. The airport’s stormwater drainage is a gravity flow system with noA trench drainage system acts as an elongated drainage grate, usually on a slope or path. 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. Stainless Steel Push-Fit Pipes & Fittings. © Savannah Construction and Preservation / Website by Hazel Digital MediaTrench Drain Installation Tips For Existing Concrete - Eric'sons Manufacturing. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Step 1: Determine the types and number of aircraft which populate the hangar. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Available With Type "C" Solid Cover. TREE GRATES. (770) 505-6575. As with any installation, careful measurement of the trench depth in which the drain will sit is essential—a slot drain must sit so that it is flush with the surface of the floor or pavement in which it is installed. Airport extra heavy duty mooring eyes are an effective means of aircraft tie-down. Channels. S. The first key part of the process of adding a trench drain to concrete is the design. 51" Wide Airport Neenah R-4990-OA Series Trench Grate and Frame. Products. Effects on the Runway. 5” Head: 88. Systems includes:The application proof load is variable, but the maximum proof load is 100,000 pounds. These tunnels were under the existing airfield apron (airside) and tied the Main Terminal into the existing Concourse B building for passenger traffic between the two. Normal standards are usually designated at FAA AC-150 Regional Airport. 932. Our extra heavy-duty airport and port castings are exclusively manufactured to support the loadings imposed by all commercial and military aircraft. Price$589. 10 GPM Weight Per Each: 0. DOT, Military, Marine Port and Airport projects in the Southeastern United States. Contents of this tank are then discharged to the City of Wichita (COW) sanitary sewer service main. 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;At 12. Contact Us. 00. pdf. ADA American Disabilities Act is a civil rights law that prohibits discrimination against individuals with disabilities in all areas of public. pdf. It is hard to argue that plastic is not an easy and reliable trench drain material for a wide array of drainage needs. Neenah trench drains extend from light-duty residential applications to extra heavy-duty military and airport applications. Manufactured from HDPE, this trench drain offers a durable alternative to concrete channels saving time and reducing the cost of installation. OSR Login. Designed for the heaviest loading applications, these grates and covers are made with ductile iron and are proof load tested to 200,000 pounds. Deep Vertical Bar Grate and. Trench drains are an essential part of any chemical plant. Grates are bolted to gray iron frames. We have experience installing trench drains in active airfield environments at some of the largest airports in the country. Why trench drains fail - Part 1. Americas. R-4990AX C 8 Wide Unbolted Long Slotted 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;Products. Sidewalks and. Neenah Foundry . These trench drain grates often have. Bolted & security options, lift assists and skid resistant surfaces are available. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. 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;. 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. Price $1,264. For special situations, . Add to cart. Product ID R-3491-JG. Trench Drain Installation Cost for Different Trench Drains. Common applications include bridge floors, highways, inlets, and airport trench drain covers. 26" Wide Trench Drain Grates. 04% (1/8" [3. 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;. Compare. Trench drain systems also can improve the overall aesthetic of an airport. Pre sloped in a variety of grate options. 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. Vodaland offers a variety of flexible options for customers looking for trench drain systems. Duraslot is made from dual-wall corrugated polyethylene pipe with an aluminum slot mounted on top of 4" - 36" (10. Frame and Grate Bolted Assembly. Design & Documentation. Trench drain systems can quickly remove water from these areas, keeping runways and taxiways safe for aircraft and ground vehicles to use. 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. ACO Food. U. D. Design & Documentation. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Fiberglass trench drains are used in airport hangars, parking lots, and water treatment plants. ACO Water Management. Employing a solid cover or grating that is flush with the adjoining surface, this. Reaching out to Dura Trench is easy. ACO Sport - Sport venue drainage. (770) 505-6575. The proof. Foundation drains shall be a minimum trench width of 300mm, with a variable trench depth to suit the application and ground conditions on site. Optional Vinyl Ester channels are available for use in harsh chemical or high temperature. Trench drain systems have become increasingly popular in recent years for their ability to manage stormwater and surface water runoff at airports effectively. All pipes and fittings are manufactured using the. TRENCH DRAIN. Trench Drain Supply has broken channel widths into classes to simplify this confusion. Trench drain are a good way to keep runways dry. Design & Documentation. As with all our Dura Trench linear drainage. ABT Drains manufactures surface drainage solutions and water management systems, including Trench Drains and Low-Impact Development Solutions. 72 N State Rd #418, Briarcliff Manor, NY 10510 (914) 271-7996. Low-Impact Design & Environmental Catalogs. 4 in. *Taller slots are available on special order. VALVES & GATES. 75% bottom slope. High density polyethylene structural composite drain channel with . We carry a variety of systems including ACO systems, Zurn and U-Drain. (770) 505-6575. 34" Wide Airport Neenah R-4990-KA-2 Series Trench Grate and Frame. NDS Dura Slope is a high quality, dependable and best in class trench drain system that meets a variety ofSend Us a Message. View All Drainage & Interceptors View All Drainage & Interceptors. The range comprises modular and durable drainage channels, manufactured from corrosion-resistant polymer concrete. 34"W X 24"L X 2"DFor a trench drain grate we use the width of the trench grate as the size. 1-877-903-7246 . XHD grates provide the largest inflow area available in cast grates for 8″, 12″, and 18″ trenches while still far exceeding all FAA load ratings. This means that the run-off that is in one section of your property will not spill over onto another section. 59 1/4" x 31" Dia. 375/. 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. Find a wide rage of drainage products at Trench Drain Systems. The modular design of our Pro Series Channel Drains offers flexibility with interlocking joints that offer quick and easy connections. Where to buy. 04% (1/8 [3. com 518. 25/. <iframe src="height="0" width="0" style="display:none;visibility. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Concrete encasement depends on the load rating one wants to achieve. Americas/ Change. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits; Ulma U100K Polymer Concrete - Galvanized Edge Complete Kits. Add to cart. All sections are modular 8-foot [2. n is the coefficient of friction of the trench drain body (concrete forming systems = 0. We understand badging, escorts, FOD control, and the technical details of successfully completing airport trench drain installation projects. 21. D x 39. Fiber concrete channels with galvinized steel frames. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits; Ulma U100K Polymer Concrete - Galvanized Edge Complete Kits. This Linear trench drain has combination tie-down/levelling devices at 20-inch intervals. Trench drains come with a slope built into the drainage system itself, which can help in areas that are not prepared to offer the right rate of drainage otherwise. TDS is one of the largest distributors of drainage products in the U. usa@bg-graspointner. These kinds of drains can be placed in. As stated earlier, there are many reasons that plastic can be a great option for your trench drain installation. Outlets shall be spaced at maximum intervals of 150 metres. This trench grate series represents Neenah’s best hydraulic performance. The 3000 Series™ is a high-volume trench drain system designed for highway traffic and airport applications. They are also shaped differently than other standard drainage, having a narrow throat in the drain body, which widens below the surface to accommodate the. 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. Applications. Pedestrian traffic only: safe load < 2000 lbs. 4" Wide with Galvanized Edge Polymer Concrete Best Seller . Open Menu. This trench grate series represents Neenah’s best hydraulic performance. Design & Documentation. pdf. Design & Documentation. Where as…. Airport construction castings must sustain the loading requirements. 00 airport type 2 cable trench 0092060 lf 1. Products. There are many different levels of load rating. Ductile Iron Manhole Grate and Airport Frame -. 078″ thick at grate seat. We also manufacture several product lines to fill specialized areas. Find concrete and driveway channel trench drains from the leader in drainage systems, NDS Pro. Extra Heavy Duty Airport. R-4990AX E 8 Wide Unbolted Vented Lid. OSR Login. Shop online or call today 610-638-1221. Where as…. Two main standards are used in the US for trench drain: ANSI A112. U. Brewery Drainage Tri-fold. 26/04/21 Vodaland Canada Whether you have a county, municipal, or international airport, it’s important to carefully consider the drainage system you choose. 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. (770) 505-6575. Our resolution to better our planet extends throughout the company with our employees. 10″ Wide Trench Drain Grates. The NDS® 5 in. Trench Drain Systems.