Corrugated Steel Pipe

Cross-Sections of Corrugated Steel Pipe

Shape	Image	Range of Sizes	Common Uses
Round		6 in. - 52 ft.	Culverts, sub drains, sewers, service tunnels, etc. All plates same radius. For medium and high fill (or trenches).
Vertical Ellipse 5% normal		4 ft. - 21 ft.	Culverts, sewers, service tunnels, recovery tunnels. Plates of varying radii, shop fabrication. For appearance and where back fill compaction is only moderate.
Pipe Arch		Span x Rise 17 in. x 13 in. to 20 ft. 7 in. x 13 ft. 2 in.	Where headroom is limited. Has hydraulic advantages at low flows. Corner plate radius, 18 inches or 31 inches for structural plate.
Underpass		Span x Rise 5 ft. 8 in. x 5 ft. 9 in. to 20 ft. 4 in. x 17 ft. 9 in.	For pedestrians, livestock or vehicles (structural plate).
Arch		Span x Rise 5 ft. x 1 ft. 9 1/2 in. to 82 ft. x 42 ft.	For low clearance large waterway opening, and aesthetics (structural plate).
Horizontal Ellipse		Span 7 ft. - 40 ft.	Culverts, grade separations, storm sewers, tunnels (structural plate).
Pear		Span 25 ft. - 30 ft.	Grade separations, culverts, storm sewers, tunnels (structural plate).
High Profile Arch		Span 25 ft. - 83 ft.	Culverts, grade separations, storm sewers and tunnels. Ammunition magazines, earth covered storage (structural plate).
Low Profile Arch		Span 20 ft. - 83 ft.	Low-wide waterway enclosures, culverts, storm sewers (structural plate).
Box Culvert		Span 10 ft. - 53 ft.	Low-wide waterway enclosures, culverts, storm sewers (structural plate).

 

Design Specifications

Agency	Specifications
AASHTO	Standard Specifications for Highway Bridges-Division 1, Section 12 LRFD Bridge Design Specifications - Section 12
ASTM	Standard Practice for Structural Design of Corrugated Steel Pipe, Pipe Arches, and Arches for Storm and Sanitary Sewers and Other Buried Applications - ASTM A796
AREMA	Manual for Railway Engineering - Section 4.9

 

Diameter for Corrugated Steel Pipe

Inside Diameter	Corrugation Pattern
4" to 18"	1 1/2" x 1/4"
12" to 84"	2 2/3" x 1/2"
36" to 144"	3" x 1"
36" to 144"	5" x 1"

Corrugated steel pipe is usually comes in 20' and 24' lengths. But shorter or longer lengths can be provided.

 

Installation Specifications

Agency	Specifications
AASHTO	Standard Specifications for Highway Bridges-Division II, Section 26 LRFD Bridge Construction Specifications
ASTM	Standard Practice for Installing Factory Made Corrugated Steel Pipe for Sewers and Other Applications - ASTM A798 Standard Practice for Installing Corrugated Steel Structural Plate Pipe for Sewers and Other Applications - ASTM A807
AREMA	Manual for Railway Engineering - Section 4.12
U.S. Dept. of Agriculture - Natural Resources	Conservation Service Construction Specification Section 51 Paragraph 6 Service
U.S. Dept. of Agriculture - Forest Service	Specification for Construction of Roads and Bridges, Section 603.04 through 603.08.
Federal Lands Highway	FP92 Section 602.03, 602.05, 602.07, and 602.08

 

Material Description and Specifications

Material Group No.	Description	Specifications
Zinc Coated sheets & coils	Steel base metal* with 2 oz per ft2 zinc coating	AASHTO M218 - ASTM A929M
Polymer Coated Sheets and Coils	Polymer coatings applied to sheets* and coils* , 0,010 in. both sides	AASHTO M246 - ASTM A742M
Aluminum Coated coils - type 2	Steel base metal* coated with 1 ox. per ft2 of pure aluminum	AASHTO M274 - ASTM A929M
Sewer and Drainage Pipe	Corrugated pipe fabricated from any of the above sheets of coils. Pipe is fabricated by corrugating continious coils into helical form with lock seam or welded seam, or by rolling annular corrugated mill sheets and riveting or spot welding seams: 1. Galvanized corrugated steel pipe 2. Polymeric pre-coated sewer and drainage pipe 3. Aluminized Type 2 corrugated steel pipe 4. Structual plate pipe	AASHTO M36 - ASTM A760M AASHTO M245 - ASTM A762M AASHTO M274 - ASTM A760M AASHTO M167 - ASTM A761M
Ashalt Coated Steel Sewer Pipe	Corrugated steel pipe of any of the types shown above with a 0.050 in. asphalt coating	AASHTO M190 - ASTM A849
Invert Paved Seel Sewer Pipe	Corrugated steel pipe of any one of the types shown above; 1. Ashalt coated pipe with 0.050 in. ashpalt coating and pavement poured in the invert to cover the currgation by 1.8 in. 2. With a field applied 3 in. (3250 psi) concrete invert or 1 1/2 in. high strength (9600 psi) concrete invert. 3. With polymer material applied 0.050 in. above the crest in the invert.	AASHTO M190 - ASTM A849 ASTM A849 ASTM A849
Fully Lined Steel Sewer Pipe	Corrugated steel pipe of the types shown above: 1. With an internal asphalt lining centrifugally spun in place. 2. With an internal concrete lining in place. 3. Corrugated steel pipe with a smooth steel liner integrally formed with the corrugated shell or. 4. Corrugated steel pipe with a single thickness of smooth sheet fabricated with helical ribs porjected outward or. 5. With concrete pavement and linings installed in the field.	AASHTO M190 - ASTM A849 AASHTO M36 - ASTM A849 AASHTO M36 - ASTM A760M AASHTO M36 - ASTM A760M ASTM A979M
Cold Applied Bituminous Coatings	Mastic or coal tar base coating of various viscosities for field or sho coating of corrugated pipe or structural plate.	AASHTO M243 - ASTM A849
Gaskets and Sealants	1. Standard O-ring gaskets 2. Sponge neonprene sleeve gaskets 3. Gasketing strips, butyl or nioprene 4. Mastic sealant	ASTM D1056 ASTM C361

 

Federal Highway Administration (FHWA) Abrasion Levels

Level	Type	Description
Level 1	Non-Abrasion	No bed load regardless of velocity or storm sewer application.
Level 2	Low Abrasion	Minor bed loads of sand and gravel and celocities of 5 ft/sec or less.
Level 3	Moderate Abrasion	Bed loads of sand and small stone or gravel with velocities between 5 and 15 ft/sec.
Level 4	Severe Abrasion	Heavy bed loads of gravel and rock with velocities exceeding 15 ft/sec.