18 culvert pipe

Arcadia Culverts sells HDPE (plastic pipe) diameters 12” to 60”. This corrugated exterior and smooth interior pipe has built its reputation on durability, performance & economics. Suitable for projects ranging from residential driveways to underground detention and chamber systems, this NFlow HDPE pipe is a solution for your stormwater and ...

4 days ago · N-12® dual wall drainage pipe. Dimensions: 18 inch diameter x 20 feet. ADS 18850020IB. Dual wall construction: exterior corrugated, interior smooth. Integrated bell and spigot system for connecting. Flared bell, tapered spigot. Gasket on spigot meets ASTM F477 standards. Soil tight joint for standard storm water and culvert applications. Dual wall pipe with smooth interior wall and corrugated exterior wall, offers exceptional hydraulics and strength. ... 18in x 20ft Corrugated Dual Wall Culvert: PC: $414.20: CUL 24X30DW: 24in x 30ft Corrugated Dual Wall Culvert: PC: $1,152.60: CUL 15X30DW: 15in x 30ft Corrugated Dual Wall Culvert: PC:Aug 24, 2015 ... Installing culvert pipe and putting wings on a driveway ... 18:30. Go to channel · Installing culvert pipes ... Heavy Equipment Track New 18K views.As of August 2015, prices for culvert pipes range from $110.00 for a 8-inch-by-20-foot culvert pipe at Home Depot to $249.98 for a 15-inch-by-20-foot corrugated culvert pipe at Low...Formula with Variables Description. The main formula used is: scssCopy code. Q = (1.486/n) * A * R^(2/3) * S^(1/2) Where: Q is the flow rate (discharge) through the culvert. n is Manning’s roughness coefficient, representing resistance to flow. A is the cross-sectional area of the culvert. R is the hydraulic radius (A/P, where P is the wetted ...They are 16 gauge corrugated metal pipe. Dimple Bands connect two pipes of the same diameter together and are available for the smaller diameter pipes. Custom Culverts can be cut to a specific length upon request. All diameters priced by the foot up to 20 feet. Cutting fee is $39 per cut for 12″ to 36″ and $49 per cut for 48″ or larger.We sell a lot of culvert pipe, and we can help you as wellcall us with your requirements at 813-241-2511Fax - 813-248-5681. Culvert pipe is critical to a variety of different drainage and irrigation systems, and can be used in gardening, landscaping and other residential applications. Regardless of what your project is, we're guaranteed to have ... X. 18" Dia round reinforced concrete pipe (RCP) can be used in a variety of applications. Oldcastle concrete pipe is designed to meet ASTM C-76, ASTM C-443, AASHTO M170, and APWA specifications.

ADS 18 in X 30 ft Dual Wall Plain End AASHTO N-12 HDPE Corrugated Culvert Coburn's Product #: 46700220 *Images are representative of products listed and may not be actual product. Double walled with a smooth interior finish and a corrugated exterior wall, this double wall drainage pipe adds a polished touch to your next project. Made with HDPE plastic. Double wall design adds extra durability. 8 in. diameter x 20 ft. L. Applications include culverts, cross drains, waterways, storms sewers, slope/edge drains, mining ...The end sections can be made to fit both round and arched CMP and are available in galvanized, aluminized type 2, aluminum or plastic material. These plastic end sections are available in the following standard sizes: 12″-15″, 18″, 24″ and 30″-36″. Multiple end sections are custom built.ADS 15-in x 20-ft Corrugated Culvert Pipe. Item # 4909205 |. Model # 15850020DW. Shop ADS. 10+ bought last week. With bell and spigot designs you simply lube and push together, field installation is a snap. Unlike pipes from other manufacturers, there are no additional gasket materials, grout or sealing bands to transport and apply.ADS 18 in X 30 ft Dual Wall Plain End AASHTO N-12 HDPE Corrugated Culvert Coburn's Product #: 46700220 *Images are representative of products listed and may not be actual product.Culverts Corrugated plastic pipe is an ideal product to reline or replace other drainage materials that have deteriorated. Used beneath roadways and even under railroad tracks, culverts are usually short in length with both ends of the pipe open to direct water. But they need to be strong to support overburden embankments and heavy traffic loads.

Our mission is: To be the reliable and timely, best source for our customers' culvert pipe needs! Let us know what pipe you will be needing for upcoming projects and we will have it in stock for you. Call us at 850-994-4001 for a free written estimate. David Miller. The 18-in. pipe offers the added benefit of being easier to clean if it becomes plugged than pipes of smaller diameters. Pop cans, leaves, and pinecones easily can render useless a 6- or 8-in. culvert. The cover over the pipe is critical to the performance of the pipe in service.4 days ago · 48" x 20' Corrugated Dual-Wall Solid Belled End Culvert Drainage Pipe. Model Number: 48GF20NP-WT-M294 Menards ® SKU: 6893979. PRICE $1,849.99. 11% REBATE* $203.50. PRICE AFTER REBATE* $ 1,646 49. A: Dig a trench for the drainage pipe about 1-1/2 to 2 feet deep and 8 to 9 inches wide. The trench needs to be flat with about 1 inch of drop for every 10 feet all the way to the drainage output area. Place pieces of water-permeable landscape fabric in the trench, followed by about 3 inches of coarse gravel.

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Culvert Plastic N-12 18"x20'. Price Match Guarantee! Available for Pickup Today! Shipping is available for this item. Corrugated, smooth interior, high-density polyethylene (HDPE) pipe. Introduced in 1987, dual wall N-12 pipe, with its smooth interior wall and corrugated exterior, offers exceptional hydraulics and strength.Structural Integrity for Every Project. Constructed using robust, corrosion-resistant steel, each steel arch culvert ensures durability and longevity. Capable of accommodating high volumes of waterways or supporting heavy loads, these arched culvert pipes minimize maintenance costs and offer a reliable alternative to traditional culvert materials.NyPipe is already the trusted provider of high-density polyethylene Culverts for clients all over the province. Contact us today and get started on your project! R320. 6″ x 6 Meter (19.6 ft) HDPE R320 double wall culvert c/w one coupling. $155.00. 8″ x 6 Meter (19.6 ft) HDPE R320 double wall culvert c/w one coupling. $243.00.8" x 20' Corrugated Single-Wall Perforated Plain End Culvert Drainage Pipe. Model Number: 08GL20PF-F667 Menards ® SKU: 6893917. PRICE $79.99. 11% REBATE* $8.80. PRICE AFTER REBATE* $ 71 19. each.

If you are looking for driveway culverts for sale near you, it’s important to gather all the necessary information before making a purchase. Driveway culverts play a crucial role i...18″X20′ CORRUGATED HDPE DUAL WALL ASTM CULVERT DRAIN PIPE. $ 11.96. • In-line bell design with ASTM F477 gaskets. • Soil tight and watertight joints available. • …Premium quality pipe, used in driveway and roadway culverts. Durable and easy to install. 24 in. x 20 ft. pipe is constructed of 16 gauge galvanized steel. Designed with re-corrugated ends for coupling ease. Galvanized pipe is a good long term drainage solution. Meets or exceeds AASHTO M36, ASTM A760, AASHTO M246, ASTM A929.The CUL 18 in. x 10 ft. Galvanized Steel Drainage Pipe is ideal for driveway and roadway applications. Made from 16-gauge galvanized steel, this pipe is built for durability and is easy to install. Take advantage of the pipe's re-corrugated ends for simple coupling. This steel drainage pipe is used for driveway and roadway drainage.Step 1: Site Assessment. Begin with a thorough site assessment. Check soil type, water flow patterns, and environmental impact. This step determines the pipe material and size best suited for your project. Step 2: Design and Planning. Design the culvert considering the water flow capacity, road width, and soil characteristics.In the realm of culvert pipe selection, two formidable contenders often come to the forefront: High-Density Polyethylene (HDPE) plastic and aluminized steel pipes. The decision between the two depends on various factors critical to the success of your project. As experts in the field, with years of experience dating back to the mid 90's, DK Tanks & Pipe recommends careful consideration of ...Jul 28, 2021 ... This video describes a simple method to get culvert piping to go together with ease. Enjoy and let me know if you have better ideas or if ...Aug 1, 2017 · This article explains the three main materials used to build culverts—plastic, metal, and concrete—and their pros and cons in culvert construction. Aluminum and galvanized steel are popular culvert building materials. Corrugated metal is strong, reasonably affordable, and can be adapted to resist corrosion through galvanization. This Neat Distributing HDPE Coupler is manufactured with smooth interior allowing for more efficient flow. The HDPE coupler has excellent abrasion and corrosion resistance, providing a long-term drainage solution. Compatible with 18 in. HDPE drainage pipe. Excellent abrasion and corrosion resistance. Long term drainage solution.Description. Singlewall solid pipe is light weight and easy to install. A low cost culvert option to move storm water. Specifications. Find 18-Inch X 20-Foot Plain Corrugated Culvert and other Hancor products at Sutherlands.

The standard sizes for reinforced concrete elliptical culvert pipes range from 18 inches to 144 inches in diameter, with lengths of 8 feet or 12 feet. The most commonly used sizes are 24 inches, 36 inches, 48 inches, 60 inches, and 72 inches in diameter. There is specification chart with thickness and weight of Reinforced Concrete Elliptical ...

What is a Driveway Culvert? Driveway Culverts are used in vehicle access areas that tend to have problems with high water crossing. Each culvert is designed according to the type of traffic using it. Heavier traffic will call for larger pipe and a deeper base layer whereas lighter traffic will call for a more standard pipe and base.ISCO’s Snap-Tite culvert lining system offers a superior solution. With a no-dig slip-liner approach, Snap-Tite eliminates the need for cutting and repairing roads, saving on labor and equipment rental while minimizing road traffic. Snap-Tite pipe liner is a faster, easier, and more cost-effective alternative to rehabilitating deteriorating ...Circular Culverts – Round pipe culverts made of concrete, corrugated metal or plastic. Most common and economical type. Box Culverts – Rectangular or square culverts. Allow more water flow capacity than circular ones. Made of concrete or metal. Arch Culverts – Curved semi-circular shape. Can handle greater volumes and debris …4 days ago · 48" x 20' Corrugated Dual-Wall Solid Belled End Culvert Drainage Pipe. Model Number: 48GF20NP-WT-M294 Menards ® SKU: 6893979. PRICE $1,849.99. 11% REBATE* $203.50. PRICE AFTER REBATE* $ 1,646 49. 18" HDPE Apron for HDPE Culvert. Model Number: PES-18 Menards ® SKU: 6894117. PRICE $379.99. 11% REBATE* $41.80. PRICE AFTER REBATE* $ 338 19.Step 1: Site Assessment. Begin with a thorough site assessment. Check soil type, water flow patterns, and environmental impact. This step determines the pipe material and size best suited for your project. Step 2: Design and Planning. Design the culvert considering the water flow capacity, road width, and soil characteristics.To learn more about the types of pipe we can supply or to see our current selection of culvert pipe, contact us today online or by phone at 800-310-6210. For new and used culvert pipe including supply and fabrication of steel culverts and piping contact P.I.T. Pipe, a steel pipe supplier.Pipe; Nominal Pipe Size 18 Inch; Thickness 16 Gauge; Length 20 Foot; Material Steel; Finish Galvanized; Application Culvert, Storm Sewer, Underground Storage System, Underground Sand Filter, Slotted Drain, Pipe Rehabilitation Reline, Small Bridge, Conduit, Underdrain, Dewatering Casing, Riser, Pond Kit; Type Spiral Rib; Corrugated Size 2-2/3 ...

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18" x 20' Corrugated Dual-Wall Solid Plain End Culvert Drainage Pipe. Model Number: 18GF20NP-PE-M294 Menards ® SKU: 6890609. PRICE $379.99. 11% REBATE* $41.80. PRICE AFTER REBATE* $ 338 19. each.Advanced Drainage Systems, Inc. (ADS) 18 in. x 20 ft. HDPE ASTM N12 Dual Wall Pipe provides superior strength and flexibility while still being light weight. ADS N-12 Dual …A-2000 is a cost-effective alternative to polypropylene, SDR35, ductile iron, RCP and glass fiber reinforced pipe products used in sanitary sewer applications. A-2000’s superior strength, joint tightness, and overall quality have made it a standard in the industry. Engineered for gravity flow applications in depths exceeding 30 feet, A-2000 ...View Culvert Pipe product at American Fence & Supply Co. Skip to content. Product Search. Sign In Cart 0. About Us Contact Us Call ... 18"x20' 16ga.CULVERT SKU: 2151820. Price ea: $632.00 Quantity in Cart: 0. Quantity: Add More Add Less. Add To Cart. 18"x16' 16ga.CULVERT SKU: 2151816. Price ea: $499.00 NyPipe is already the trusted provider of high-density polyethylene Culverts for clients all over the province. Contact us today and get started on your project! R320. 6″ x 6 Meter (19.6 ft) HDPE R320 double wall culvert c/w one coupling. $155.00. 8″ x 6 Meter (19.6 ft) HDPE R320 double wall culvert c/w one coupling. $243.00. Product SpecificationsSpecifications. FinishGalvanized. Selling Length30 ft. Selling Size12 in. Weight1 lb. Location Finder. EDWARDS CULVERTS - ESMG16GA1230, undefined, 12 in. x 30 ft. 18 gauge Galvanized Steel Culvert Pipe.3. Laying of Pipes in Culvert. The pipes shall be laid after the foundation is well cured and approved by the engineer-in-charge. In places wh ere two or more pipes are to be laid ad jacent to each other, the pipes shall be separated by a distance of a minimum 450 mm or equal to half the diameter of the pipe.Nothing’s worse than a broken pipe. This article will help you find the best sealant for your leaking pipe by reviewing the best options on the market. Expert Advice On Improving Y... ….

8" x 20' Corrugated Single-Wall Perforated Plain End Culvert Drainage Pipe. Model Number: 08GL20PF-F667 Menards ® SKU: 6893917. PRICE $79.99. 11% REBATE* $8.80. PRICE AFTER REBATE* $ 71 19. each. The Nuflo HDPE Drainage Pipe is ideal for driveway and roadway applications. Made from high density polyethylene, this drainage pipe is built for efficient flow and excellent corrosion resistance. Take advantage of the pipe's bell and spigot with gasket to achieve a water-tight joint. NuFlo 18 in. x 9.75 ft. HDPE Drainage Pipe is rated 3.1 out ... Formula with Variables Description. The main formula used is: scssCopy code. Q = (1.486/n) * A * R^(2/3) * S^(1/2) Where: Q is the flow rate (discharge) through the culvert. n is Manning’s roughness coefficient, representing resistance to flow. A is the cross-sectional area of the culvert. R is the hydraulic radius (A/P, where P is the wetted ...4 days ago · 48" x 20' Corrugated Dual-Wall Solid Belled End Culvert Drainage Pipe. Model Number: 48GF20NP-WT-M294 Menards ® SKU: 6893979. PRICE $1,849.99. 11% REBATE* $203.50. PRICE AFTER REBATE* $ 1,646 49. 18" x 20' Contech Construction Galvanized Culvert Steel Pipe. Utilized in driveway or roadway culverts. Durable and easy to install. Cannot be cut. 16 gauge. Culvert pipe ideal for driveways and access roads. Four times stronger than HDPE plastic culvert pipe and 10 times lighter than concrete pipe.u001e. 18-Inch X 20-Foot Plain Corrugated Culvert Mfg.# 18510020H ... Corrugated HDPE pipe; Lightweight; Easy to install; Use for driveway culverts or roadway edge drains; Our culvert pipe is made of High Density Polyethylene (HDPE) and is used as drainage for walkways and driveways. ... 18 x 10' smooth lined plastic culvert $145.50 145.50. 24 x 10' smooth lined plastic culvert $267.50 267.50. Add To Cart heading-24-Culvert Pipe - Smooth 10' Corrugated Plastic Culvert Pipe - Double Wall 10' 0.00.8" x 20' Corrugated Dual-Wall Solid Plain End Culvert Drainage Pipe. Model Number: 08GF20NP-PE-M252 Menards ® SKU: 6899244. Not Available Online.Stronger pipe Structural plate can be built thicker than regular CSP, therefore the strength of the pipe itself is higher. Corrosion protection The thicker pipe material takes longer to corrode through. Bigger culvert sizes Structural plate theoretically has no maximum size but they are generally built to a maximum size of 750 inches (18.75 m ... 18 culvert pipe, Select Fits Pipe Size St. Regis Culvert 18 in. Metal Band. Quick View Part #SSB1812 Item #7315786 Mfr. Part #SB1812 4.4 out of 5 Customer Rating ... Metal Culverts Inc 8 in. Flared 18 ga Galvanized End Section. Quick View Part #CGMPFESX Item #4472822 5 out of 5 Customer Rating. Info Requires Certification. Points, 4 in. x 100 ft. Corrugated Single-Wall Slotted Culvert Pipe SKU: 315198199 ... Neat Distributing 18 in. x 12 in. Galvanized Culvert Connector Band, DOT Approved SKU ..., We stock a multitude of pipe sizes. We offer: 12″, 15″, 18″, 24″, 36″, 48″ and 60″ galvanized metal pipe 12″, 15″, 18″ and 24″ corrugated double wall plastic pipe with smooth interior For more information on culvert pipe, contact us today or …, 18 inch x 20 ft 16 ga Corrugated Metal Culvert Pipe., Polymer Coated Pipe and Asphalt Coated Culvert Pipe. Our corrugated steel pipe with heavy-gage polymer coating offers long-term protection for storm drains and culverts. Even under harsh conditions, polymer coated pipe protects against abrasion and corrosion to provide at least 100 years of service life. Polymer coating is a tough, rugged ..., Step 1: Site Assessment. Begin with a thorough site assessment. Check soil type, water flow patterns, and environmental impact. This step determines the pipe material and size best suited for your project. Step 2: Design and Planning. Design the culvert considering the water flow capacity, road width, and soil characteristics., Our mission is: To be the reliable and timely, best source for our customers' culvert pipe needs! Let us know what pipe you will be needing for upcoming projects and we will have it in stock for you. Call us at 850-994-4001 for a free written estimate. David Miller., Confused about all the different types of plumbing pipes? We explain what each one is for and some drawbacks of each option in this handy guide for homeowners. Expert Advice On Imp..., N-12® Dual Wall Pipe is a high-quality solution for stormwater management and drainage systems. With a smooth interior wall, the pipe offers exceptional hydraulics. In addition, its corrugated exterior reinforces the pipe, ensuring its durability and resistance to corrosion and abrasion. Use N-12 Dual Wall Pipe as an alternative to reinforced ..., Our Culvert Pipe Prices and Current Pipe Inventory. As a leading pipe distributor, we at P.I.T. Pipe carry one of the largest selections of culvert pipe including many sizes and different grades available at some of the most competitive culvert pipe prices in the industry. Whenever you need culvert pipe for your next construction job, P.I.T ... , 1-1/2 in. x 10 ft. Schedule 40 ABS Plus Foam Core Pipe. Part #AP40FCPJ10. Item #4283925. Shop for Plastic Drainage Pipe at Ferguson. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, …, 18" Corrugated Culvert Split Coupler. Model Number: SC18-BM Menards ® SKU: 6894156. PRICE $27.99. 11% REBATE* $3.08. PRICE AFTER REBATE* $ 24 91. each. , 4 days ago · N-12® dual wall drainage pipe. Dimensions: 18 inch diameter x 20 feet. ADS 18850020IB. Dual wall construction: exterior corrugated, interior smooth. Integrated bell and spigot system for connecting. Flared bell, tapered spigot. Gasket on spigot meets ASTM F477 standards. Soil tight joint for standard storm water and culvert applications. , View Culvert Pipe product at American Fence & Supply Co. Skip to content. Product Search. Sign In Cart 0. About Us Contact Us Call ... 18"x20' 16ga.CULVERT SKU: 2151820. Price ea: $632.00 Quantity in Cart: 0. Quantity: Add More Add Less. Add To Cart. 18"x16' 16ga.CULVERT SKU: 2151816. Price ea: $499.00, Nothing’s worse than a broken pipe. This article will help you find the best sealant for your leaking pipe by reviewing the best options on the market. Expert Advice On Improving Y..., ADS 18 in X 30 ft Dual Wall Plain End AASHTO N-12 HDPE Corrugated Culvert Coburn's Product #: 46700220 *Images are representative of products listed and may not be actual product. , 18" Corrugated Culvert Split Coupler. Model Number: SC18-BM Menards ® SKU: 6894156. PRICE AFTER REBATE* $ 24 91. each. You Save $3.08 with Mail-In Rebate* SELECT …, Coast-to-coast, engineers and contractors rely on Contech Corrugated Metal Pipe for culverts, storm sewers, small bridges, conduits, stormwater detention systems, and windmill foundations. No other type of drainage structure offers the range of structural strength that is available with Corrugated Metal Pipe—it performs where rigid pipe fails ... , Corrugated Culvert Pipe, 18 In x 10 Ft. The Neat Distributing HDPE Culvert Pipe is ideal for driveway and roadway applications. HDPE pipe is an eco friendly alternative in many storm water applications. Culvert pipe is manufactured with a smooth interior, allowing for more efficient flow. Designed with a bell and spigot with a gasket for a ..., Overview. 18 in. x 20 ft. Plastic dual wall corrugated hdpe solid pipe. Corrugated exterior for strength. Smooth interior for excellent hydraulics. HDPE material resists abrasion and corrosion that can damage other types of pipe. 18 in dual wall pipe is perfect for ditches, culverts and under driveways. CA Residents: Prop 65 Warning (s), 30" x 20' Corrugated Dual-Wall Solid Belled End Culvert Drainage Pipe. Model Number: 30GF20NP-WT-M294 Menards ® SKU: 6893973. Not Available Online., 8" x 20' Corrugated Single-Wall Perforated Plain End Culvert Drainage Pipe. Model Number: 08GL20PF-F667 Menards ® SKU: 6893917. PRICE $79.99. 11% REBATE* $8.80. PRICE AFTER REBATE* $ 71 19. each., A: Dig a trench for the drainage pipe about 1-1/2 to 2 feet deep and 8 to 9 inches wide. The trench needs to be flat with about 1 inch of drop for every 10 feet all the way to the drainage output area. Place pieces of water-permeable landscape fabric in the trench, followed by about 3 inches of coarse gravel., 4 days ago · 12" x 20' Corrugated Single-Wall Solid Plain End Culvert Drainage Pipe. Model Number: 12GL20NP-F667 Menards ® SKU: 6893949. Not Available Online. , Description. The Southeast Culvert Galvanized Pipe 18 in. Metal is perfect for driveways and roadways application. Made from premium-grade galvanized steel, this pipe ensures lasting durability and reliability. This pipe feature re-corrugated ends for hassle-free coupling. Its simple design facilitates convenient installation. , Pipe; Nominal Pipe Size 18 Inch; Thickness 16 Gauge; Length 20 Foot; Material Steel; Finish Galvanized; Application Culvert, Storm Sewer, Underground Storage System, Underground Sand Filter, Slotted Drain, Pipe Rehabilitation Reline, Small Bridge, Conduit, Underdrain, Dewatering Casing, Riser, Pond Kit; Type Spiral Rib; Corrugated Size 2-2/3 ..., Although not the first industrial-style clothing rack we've seen, the folks over at Simplified Building have put together another great option for easy clothing storage. All you ne..., Model Number: E18-902P-GF Menards ® SKU: 6893820. Everyday Low Price. $104.99. 11% REBATE* Good Through 5/12/24. $11.55., In the realm of culvert pipe selection, two formidable contenders often come to the forefront: High-Density Polyethylene (HDPE) plastic and aluminized steel pipes. The decision between the two depends on various factors critical to the success of your project. As experts in the field, with years of experience dating back to the mid 90's, DK Tanks & …, This Neat Distributing HDPE Coupler is manufactured with smooth interior allowing for more efficient flow. The HDPE coupler has excellent abrasion and corrosion resistance, providing a long-term drainage solution. Compatible with 18 in. HDPE drainage pipe. Excellent abrasion and corrosion resistance. Long term drainage solution., Culvert Plastic N-12 18"x20'. Price Match Guarantee! Available for Pickup Today! Shipping is available for this item. Corrugated, smooth interior, high-density polyethylene (HDPE) pipe. Introduced in 1987, dual wall N-12 pipe, with its smooth interior wall and corrugated exterior, offers exceptional hydraulics and strength., About this item. Fit's 18" corrugated or ribbed pipe. (Inside diameter: 17.30" / Outside diameter: 20.57") Skid resistance surface. Highest level of UV Protection included. Includes a foam gasket for airtight and watertight applications. Includes square drive screws to discourage unauthorized entr., Concrete ASAP’s Reinforced Concrete Culvert Pipes (“RCP”) are designed for storm sewers, driveways and street drainage, as well as all types of detention systems. Concrete ASAP uses the best Texas aggregates available for production of its high-quality, ASTM Class III precast concrete culvert pipes. ... Concrete Culvert, 18" X 48" Sku ...