Generally, the trench drain grate is 2″ larger than the channel drain throat. Price: $3,309. 2) The Terminal apron trench drain stormwater flows initially pass through the OWS units. A patented trench drain system consisting of pre-sloped and neutral channels. Ductile Iron Manhole Grate and Airport Frame -. 4 in. Airport Drainage Inlet Frame - Gray Iron Grate and Frame. Vodaland offers a variety of flexible options for customers looking for trench drain systems. Large variety of grate options available. If you are tired of looking at boring drains that you have installed, or you are worried about people’s heels catching in the grates or other problems to do with the safety of your. Outlets shall be spaced at maximum intervals of 150 metres. Home; Manufacturers; Grates; Residential;. Installation. Meagard Landscape Trench Drain; Ulma MultiV 100 Trench Drain Complete Kits. Pools & Splash Pads; Parks, Patios, & Pavilions; Fountains & Water Features; Airports; Brewery & Winery;The 7 Most Popular Types of Yard Drains. 5 FINDINGS FINDING 1 – Before 1999, B/PB had no projectwide design standard for trench drains. Airport Drainage Inlet Frame. Shop this Collection. Or call us at 888-825-4716. For special situations, . Cleanouts. Trench drains are one of the best solutions for handling water runoff that can be applied in both residential and commercial settings. Description This AC provides guidance for engineers, airport managers, and the public about the design and construction of airport surface storm drainage systems;. The more customized you need your drainage solution to be, the steeper the cost, but trench and slot drains can often be purchased prefabricated. Model # 83330. Essentially, it’s a slope or a trench, a big, long, and narrow one, and you can build it in a day or two with your own hands. U-drain Brochure 2021 is a PDF document that introduces the features, benefits and installation methods of U-drain, a slot trench drain system that can be used for various residential and commercial applications. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. 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. Add to cart. Design & Documentation. 1500 . Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits. 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. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Infiltration trenches are generally at least 24 inches wide, and are backfilled with a coarse stone aggregate, allowing for temporary storage of stormwater runoff in the voids of the aggregate material. The buildup of water causes hydroplaning which can result in serious accidents from aircraft losing steering and brake control. OSR Login. Zurn manufactures a complete line of Transportation Linear Trench Drains for a wide variety of applications. OSR Login. National distributor for superior quality trench drain systems. 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 trench Airport trench drain projects are no stranger to Eric’sons. 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. Trench drain materials include SMC-GRP Glass Fiber Polyester, lightweight Fiberglass, Polymer Concrete, and High Density Polyethylene. NDS Pro Series Channel Drains are lightweight, but feature side ribs and thick channel walls for added strength. 010, fiberglass & GFRPC systems 0. . (770) 505-6575. Why Do Airports Need Trench Drains? Trench drains play an indispensable role in the effective functioning of airports worldwide with enhanced safety, infrastructure longevity,. Contact our experts for a fast quote, call 610-638-1221 or shop online. Extra Heavy Duty Airport. DOT, Military, Marine Port and Airport projects in the Southeastern United States. (770) 505-6575. 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;At 12. © Savannah Construction and Preservation / Website by Hazel Digital MediaTrench Drain Installation Tips For Existing Concrete - Eric'sons Manufacturing. 29 3/4" Wide BOLTED with Frame TRANSVERSE DRAINAGE STRUCTURE. 1 Bag Per Channel. The maximum drainage area to a single infiltration trench should be restricted to no more than five acres. Infiltration Volume = Bed Bottom Area (sf) x Infiltration design rate. This drainage system redirects water to a roadway drainage system and disperses it away from the trench drain area. Learn More. This Linear trench drain has combination tie-down/levelling devices at 20-inch intervals. It is used for the rapid evacuation of surface water or for the containment of utility lines or chemical spills. (770) 505-6575. is a leading foundry for municipal and industrial cast iron trench grates. 29 3/4" Wide BOLTED with Frame TRANSVERSE DRAINAGE STRUCTURE. Instructions: The following standards are from AC 150/5370-10, Standards for Specifying Construction of Airports. Pools & Splash Pads; Parks, Patios, & Pavilions; Fountains & Water Features; Airports; Brewery & Winery;A trench drain system will always be more affordable to install than a French drain system, and there are many instances where trench drains are far superior to the performance of French drains. S. City Bureau of Sitka Critical Secondary Water Civil Scope - CONTACT VALUE: $1,525,500Title: Airport Trench Drain Author: Danish Nadeem Subject: Airport Trench Drain Created Date: 2/13/2020 3:17:12 AMHow can we make a difference on your next project? Let's Get Started. Designed for maximum performance efficiency, durability, ease of installation and conformance to code, Smith products are “Brands Built to Last†!The Swiftdrain 300 trench drain system is a best in class 12″ wide pre sloped trench drain. 04% (1/8" [3. 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. 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;20" Wide Trench Drain Grates. 4 Types of Trench Drain Systems for a Yard - Eric'sons Manufacturing. Product ID R-3475-3. Ideal for electric connections, traffic signals, and more. Prefabricated Trench Drains; Radius & Curved Trench Drains; Slot Drain; Stainless Steel Drains – Linear & Floor; Utility Trenches; Trench Forming SystemsZurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Home ». Designer and Pedestrian Trench Drainage. Backwater Valves, Traps & Primers. OSR Login. The pre-sloped commercial trench drain line is offered in 2″ , 4″ , 6″ , 8″ , 10″ , 12″ , 18″ , 24″ , 36″, and 48″ widths. How Fast Do Cast Iron Trench Drain Systems Rust? - Eric'sons Manufacturing. This is a concern that many businesses share, which is part of why trench drains are so ideal in these situations. Neenah R-3492-B Airport Castings: ManholeFrames and Grates. A linear French drain is simply a "moat", or gutter-in-the-ground, that protects your yard or house from sub-surface or surface water. 00 airport temporary slope drains 0025025 lf 1. OSR Login. Airport trench drains. ACO Drain consists of cast polymer concrete bodies with either galvanized steel, stainless steel or cast iron wearing edges. Airport drainage systems shall be strong enough to bear the load and weight of an aircraft while remaining functional, efficient and intact. Our trench grates are offered in the following sizes: 3″ trench drain grates , 5″ trench drain grates , 8″ trench. This standard classifies the loads in a alphanumeric format ranging from A through F. Fork lift and heavy truck rated. 24" i. 5” Head: 88. has worked with many state transportation departments to design products for the. View Product Details. Home;. 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-4380 and R-4385. Open Menu. is a leading manufacturer of quality engineered plumbing and drainage products in the non-residential construction industry. Load More. Trench drain systems also can improve the overall aesthetic of an airport. Airport Rated Type A,D Grate. Since MKE was using FAA Airport Improvement Project dollars, the system also had to be "Made in the USA. Smith Mfg. You will need to assess the volume of wastewater and related debris that is generated during a normal. Best Sellers. TRENCH DRAIN. Grates are bolted to gray iron frames. The right trench drain installation will prevent standing water on critical surfaces like these. We understand the importance of better utilizing one of our planet's vital resource, water, and are working tirelessly to improve its utilization, collection and reuse. sales. ANSI A112. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Hinged Trench Drain Installation – General Mitchell International Airport (MKE), Milwaukee, WI Milwaukee's General Mitchell International Airport (MKE) is one of the. Manufacturer Zurn. Add to cartPaveSlot Gatic Slot drain is used to drain external hard surface areas. 5% slope built in but can be manufactured with any slope specified. Local Specifications. NFP was a partner in the construction of the two walkback tunnels at the airport; both were design-bid-build projects. Whether you’re looking for replacement cast iron trench grates or a newly installed. From upfront design consultation, to simplified installation, and performance after your job is done, we’re here to meet all of your trench drain project requirements. Drainage Area . 51" Wide Airport Neenah R-4990-OA Series Trench Grate and Frame. Prefabricated Trench Drains; Radius & Curved Trench Drains; Slot Drain; Stainless Steel Drains – Linear & Floor. With over 125 years of casting experience, Neenah Foundry Co. Fiberglass trench drains are used in airport hangars, parking lots, and water treatment plants. Prevents Standing Water. Add to cart. Dry wells ease the burden on municipal storm drains, and some communities now require them. Contact Us. Approx. Neenah R-4990 Airport Trench Grates;. Dura Trench TrueRadius™ Trench Drain. In this video, we’ll show you two methods to. ADA American Disabilities Act is a civil rights law that prohibits discrimination against individuals with disabilities in all areas of public. Configure. Products. We provide Trench drains system that is easy to clean, hygienic, durable, corrosion challenging, controls odor, handle excessive temperature and easy to maintain. ca@bg-graspointner. We have trench drain frames for pedestrian to aircraft applications. There is actually a fairly minimal amount of excavation that is necessary to place trench drains, and it is relatively fast and easy. Where practicable, cleanouts are to be provided at the commencement of each runHow can we make a difference on your next project? Let's Get Started. W x 5. Airport Configuration. For many manufacturing locations, catch basins and sumps are needed to handle the debris and chemical wastes that are being produced during daily working hours. Trench drainage, also called strip drains, is a very common pool drainage. 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;. Multiple trenches may be employed to receive runoff from larger drainage areas; however, when considering required trench maintenance, the implementation of multiple infiltration trenches is often undesirable. Trench Drainage. 26″ Wide Trench Drain Grates. We also offer trench drain systems with stainless steel, galvanized steel, ductile cast iron, and plastic drain grates to fit any need. The project was shipped in 16′ trench drain sections. NDS Mini Channel Drain Systems are manufactured from durable, lightweight polyolefin and are compatible with standard paving systems that snap together for easy installation. Neenah R-3475-A Airport Castings: Inlets. For a trench drain grate we use the width of the trench grate as the size. Employing a solid cover or grating that is flush with the adjoining surface, this. Slot drains can accomplish the same job as trench drains, but they differ in numerous ways. (770) 505-6575. 5" , 6" , 8" and 12" wide. High volume, heavy duty 3000 Series™ Trench Drain System installed at international airport. Step 1: Determine the types and number of aircraft which populate the hangar. n is the coefficient of friction of the trench drain body (concrete forming systems = 0. A linear system of grates can capture a vast volume of water from a site—one reason they are favored for airports and highways. These systems, which consist of a channel or trench that is connected to a network of pipes, provide a number of benefits that can improve the overall function and safety of an […]Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Find all the parts and supplies you need for preformed trench drain construction. Europe, Middle East, and Africa (EMEA) 800 626 4653 Locations Careers Contact Us. Trench Drain Installation Instructions and Manuals →. Hydrants & Water Hammer Arrestors. (770) 505-6575. pdf. Between our expert customer service team and our skilled installations experts, you will have a seamless and painless experience when you. 8 Sq. 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. Finding the Right Airport Drainage Systems. Radius Trench Drain. All extra heavy duty construction castings are manufactured with gray iron conforming to ASTM A48, Class 35B and ductile iron conforming to ASTM A536. Co. 94 (292) Model# 83500-6. Offered with a wide selection of frames and grates to meet any design requirement. Provide a cleanout port compatible with the manufactured system for Type I drains at the drain to drainage structures. 8 ft) Shop this Collection. The first tunnel was in 2001-2002; the second in 2008-2009. Installation. PermaVoid. Trench drain systems can tackle a lot of tough work for your property or your business location on a daily basis. 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. Click here to read more. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. 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. Installation. Industrial grade stainless steel trench and floor drains. An effective airport trench drain can prevent flight delays and keep ground control running smoothly. If there is any internal flooding from a bathroom or other water. Single Ductile Iron Grate and. 1M and DIN 19580. Design & Documentation. 00 airport sediment basins 0025040 tons 0. D x 39. 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 receiver flanges can be molded in to accept trench drains or slotted pipes. 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. for pricing and availability. Products. Zurn manufactures a complete line of Transportation Linear Trench Drains for a wide variety of applications. Our resolution to better our planet extends throughout the company with our employees. Products. Top Rated. Commercial tires and tractor trailers: safe load 5,000 – 7,499 lbs. Loading Class G: Another class that falls under airport rating is G, but these trench drains are designed for international or military airports and intermodal port facilities. Kipp specified a hinged trench drain grate system with an extra heavy-duty load rating suitable for airport construction applications. Airport and Extra Heavy Duty Trench Drainage. Slot trench drains should be easy to install, with channels and end caps that fit together easily. 360 Wythe Ave, Brooklyn, New York 11249. Aircraft rated trench drains and slotted drains manufactured by Dura Trench. Deep Vertical Bar Grate and. 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;. ACO offers an infill and solid range in single part, 2 part, 3 part, trench run and multipart configurations. OSR Login. Neenah R-3475-E Airport Castings: Inlets. Trench drain systems can quickly remove water from these areas, keeping runways and taxiways safe for aircraft and ground vehicles to use. The proof. If you are a human seeing this field, please leave it empty. Deep Series 5. 60 GPM 0. When the grating is properly anchored and the span is continuous over 3 or more supports, the. Standard sizes up to 48" x 48". For trenches wider than 12″ a 10″ diameter test block is used. Designed for the heaviest loading applications, these grates and covers are made with ductile iron and are proof load tested to 200,000 pounds. 25% slopes can be ordered to suit. Find a wide rage of drainage products at Trench Drain Systems. 20″ Wide Trench Drain Grates. 3/4. Top Rated. A cast-in-place trench. ACO Wildlife - Amphibian eco passages. A is the cross-sectional area of the trench drain in square feet. D x 39. 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. 80 Airport Drive, Wappingers Falls, NY 12590 (845) 463-0592. 49/n)* (R)^2/3* (S)^1/2. Design & Documentation. Government facilities often cannot afford to be shut down while new drainage is being installed. Gulfstream Aerospace Utilizes New DuraTrench Non-Conductive Utility Trench February 13, 2021. 27" Airport Manhole Frame With 2870 Ductile Iron Type M Flat Grate. U. 39" Wide Trench Drain Grates. ABT Drains manufactures surface drainage solutions and water management systems, including Trench Drains and Low-Impact Development Solutions. Proven to withstand the time and rigors of repeated heavy wheel loads, Neenah parts provide continuous, consistent performance. Trench drains suitable for transport infrastructure ACO Infrastructure is the market leading brand for trench drainage in transportation infrastructure applications, namely highways & motorways; urban roads, airport pavements, container ports, industrial parks, bus & truck stops; distribution centres, streetscapes etc…Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Decorative and Safety Bollards at LGA. Cross-section of a Linear French Drain including the all-important perforated french drain pipe. HDPE Channel - DGC Grates Standard. 078″ thick at grate seat. Product ID ZF806-E1. Our Micro channel drain sections snap together easily to make installation fast and simple. rate. Systems includes:The application proof load is variable, but the maximum proof load is 100,000 pounds. One way weather impacts airport operations in wet conditions is by causing sliding for a plane due to the lack of grip. Trench drain systems can be designed to blend seamlessly into the surrounding environment, providing an aesthetic improvement that can enhance the. 34" Wide Airport Neenah R-4990-KA-2 Series Trench Grate and Frame. ADA compliant designer grates and light duty grates are designed for pedestrian areas. Blog. Bolted & security options, lift assists and skid resistant surfaces are available. Dura Trench manufactures a wide array of sizes of prefabricated catch basins from a wide variety of materials. Airports are designed to handle different types of loads, depending on the purpose of the airport. Asia-Pacific. Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits; Ulma U100K Polymer Concrete. These linear drains are made up of primarily channels, end caps, end outlets, grates, catch basins and some other installation accessories. Widths from 1” to 24” and flow rates from 30 – 6,700 Gallons Per Minute; Grates in various load ratings with safety lockdown devices for airport. 10" Height. To suit many applications, our range of AS 3996 compliant grates, slotted tops and linear permeable pavers come in a variety of materials, finishes and load classes. Traffic safety, whether vehicular or pedestrian, is directly related to surface drainage. Specs and Installation. An effective airport. The channels collect and drain water from the surface, providing safety for road surfaces and pedestrian. ACO Food. See moreAirport trench drains are used to keep airplane hangars, runways and operational facilities dry. 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 Unbolted Individual Submittals. 299. Applications. Design & Documentation. Page navigation. ACO is committed to designing and producing the best solutions to water management. com 518. The expansion of Denver International Airport’s Concourse A East Apron provided room to stage and deice aircraft, and allowed overnight parking for 3 wide body and 6 standard aircraft. We have experience installing trench drains in active airfield environments at some of the largest airports in the country. Class D frames shall be 0. Modular polymer ducting system with. B/PB, as project manager, had many contractual responsibilities including the development of preliminary designs and projectwide standards. It is ideally suited for a variety of commercial and industrial applications. Z886 Bag 8499 Grate Hardware SS Hex Head 4 Locks. 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;. Standard Length: 10' Standard Grate: DGC. usa@bg-graspointner. 00. S. Keeping them in good repair and in place over the trench is critical for the well-being of your. management solutions include catch basins or drainage inlets. Our trench grates are offered in the following sizes: 3″ trench drain grates , 5″ trench drain grates , 8″ trench. Last updated: Wednesday, July 12, 2023. 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;. Applications. Trench drains are one of the most effective and durable solutions that can be utilized for government facilities of all kinds. Airport Drainage Inlet Frame - Gray Iron Grate and Frame - Available With Type "C" Solid Cover. Normal standards are usually designated at FAA AC-150 Regional Airport. 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. These pros will probably be familiar to you if you have ever used a plastic trench drain system in the past. Two main standards are used in the US for trench drain: ANSI A112. Trench drain. Design & Documentation. 29 3/4"W X 18" L X 2 1/2"D. Cast Grates range in size from 8 inches to 24 inches wide. Trench drains, also known as channel drains, are perfect for redirecting water away from . Systems comes complete with either non-removable or removable lockable grates compliant to AS 3996 and EN 1433. NDS experts can help solve your problem. Their runways have a combination of the largest surfaces to be drained, the traffic with the highest axle and wheel loads, with great axial efforts in manoeuvres and braking, and the highest requirements in terms of safety. 932. It requires that the iron. 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;. 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. Contact Us. Cleanout | Monument Boxes. 21 3/8" x 31 1/8" Dia. It is used for the rapid evacuation of surface water or for the containment of utility lines or chemical spills. . Ulma Trench Drain Kits; Ulma D100 Polymer Concrete - Polymer Edge Complete Kits; Ulma U100K Polymer Concrete - Galvanized Edge Complete Kits. Installation. Junction Boxes. 72 N State Rd #418, Briarcliff Manor, NY 10510 (914) 271-7996. During cold season aircraft deicing, this flow is diverted to a 140,000 gallon storage underground glycol collection tank located adjacent to Gate 8. Think Global, think Integra’s ExternalOther features include security bolting and bolting tabs to secure tree guards. These high. 75%, and 1. 14″ Wide Trench Drain Grates. Zurn Z882 12" [305 mm] wide pre-sloped trench drainage system. R-4990AX C 8 Wide Unbolted Long Slotted Grate. Products. (770) 505-6575. 10″ Wide Trench Drain Grates. Engineered Plumbing Products & Drainage Solutions - Jay R. Trench drain systems also can improve the overall aesthetic of an airport. Zurn Z883 Shallow Trench Drain By Item; Zurn Z874 Series Trench Drain System; Zurn Z800 Series Fiberglass Trench Drain System;. Full line of Trench Drain Grates. 12″ Wide Trench Drain Grates. The brochure also showcases some of the projects that have used U-drain and provides contact information for dealers and distributors. Blog. 1 Neenah Foundry Airport Trench Drain R-4990 Type Grate.