Indus Industrial Group supplies heavy-duty Highway Culvert and Storm Drainage Corrugated HDPE Pipes engineered across nominal inside diameters from DN200 to DN1000 in structural ring stiffness class SN8 (≥8 kN/m²) according to AASHTO M294 (Type S) and EN 13476-3 standards. Designed specifically for road crossings, highway longitudinal drainage, and bridge approach culverts across Iraq, these pipes feature deep annular exterior ribs that safely bear continuous 60-ton heavy transport truck wheel loads under shallow or deep soil cover. Fitted with integrally welded bell sockets and oil-resistant EPDM elastomeric gaskets, they ensure rapid jointing without open-trench delay.
| Pricing Verification | Commercial Quote on Demand (RFQ) |
| Governing Standards | AASHTO M294 Type S / EN 13476-3 / ASTM F2306 / ISO 21138 |
| Internal Diameter Range | DN200 to DN1000 (Nominal Inside Diameter ID) |
| Ring Stiffness (ISO 9969) | SN8 (≥ 8.0 kN/m² initial ring stiffness) |
| Traffic Load Rating | AASHTO H-20, HS-20, HS-25 (Heavy truck axle loads) |
| Minimum Soil Cover | 0.6 meters beneath flexible asphalt pavement |
| Maximum Soil Cover | Up to 8.5 meters overburden burial depth |
| Raw Material | 100% Virgin PE100 High-Molecular-Weight Resin |
| Joint Seal | Integrated Bell Socket with Oil-Resistant EPDM Gasket (ASTM F477) |
| Standard Length | 6.0 meters effective barrel length |
| Abrasion Resistance | ≤ 0.1 mm after 100,000 cycles (Darmstadt Rocker Test) |
| Sector & Division | Water & Wastewater (Div 01) |
| Parent Category | Corrugated Sewer Pipes |
Highway culvert road crossings, longitudinal expressway median drainage, airport apron stormwater collection, bridge abutment dewatering, and municipal arterial roadway stormwater mains across Baghdad, Basra, Erbil, Sulaymaniyah, and Nineveh.
Highway Drainage Corrugated HDPE Pipes conforming to AASHTO M294 Type S and EN 13476-3 represent the primary culvert and stormwater transmission technology specified by the Ministry of Construction & Housing and regional Roads and Bridges Directorates across Iraq. Built to replace cracking reinforced concrete culverts, these dual-wall pipes combine an engineered corrugated exterior profile that distributes heavy vehicular axle loads into surrounding compacted soil, with an ultra-smooth cylindrical interior liner (Manning n=0.009) that accelerates stormwater evacuation during intense flash floods.
The certified ring stiffness of SN8 (minimum 8 kN/m² per ISO 9969) is specifically calculated for high-traffic corridors like Highway 1 (Baghdad–Basra), the Erbil–Duhok expressway, and border crossing freight arteries. Even under minimum cover depths of 0.6m beneath asphalt pavement, the pipe safely supports AASHTO HS-20 and HS-25 heavy transport loadings without structural deformation or joint opening. The integrated bell socket is reinforced with an external composite wrap to prevent bell flare under high installation push forces.
Constructed from virgin PE100 resin with high Environmental Stress Crack Resistance (ESCR > 5,000 hours per ASTM D1693), the pipe resists abrasion from coarse sand and gravel swept through culverts during rainstorms. Staged in our Erbil, Baghdad, and Basra yards, Indus supplies complete pipeline lengths (6.0m), matching corrugated bevel ends, flared wingwall headwalls, and full EN 10204 3.1 inspection certification.
HDPE corrugated pipes weigh 90% less than concrete pipes, allowing installation with standard excavators without hiring expensive heavy cranes. Furthermore, HDPE will never crack from soil settlement, has a smoother hydraulic interior (n=0.009 vs n=0.013), and is 100% immune to sulfuric acid and salt corrosion.
For Class SN8 pipes under AASHTO HS-20 highway loading, the minimum recommended cover depth from the top of the pipe to the bottom of the asphalt pavement is 0.6 meters (600 mm), assuming proper backfill compaction to 95% Standard Proctor density.
Yes. Indus supplies prefabricated HDPE flared end sections, sloped bevel inlets (1:2 and 1:3 slopes), and companion concrete headwall transition collars from our Erbil, Baghdad, and Basra facilities.
