STRUCTURAL PLATE PIPE
PART 1 GENERAL
1.1SECTION INCLUDES
A.Structural plate pipe structures.
B.Cast-in-place concrete elements including footings, cutoff walls, reinforced
concrete slope collars, thrust blocks, and headwalls as shown.
1.2RELATED SECTIONS
A.Section 02056: Embankment, Borrow, and Backfill
B.Section 02075: Geotextiles
C.Section 02317: Structural Excavation
D.Section 03055: Portland Cement Concrete
E.Section 03211: Reinforcing Steel and Welded Wire
F.Section 03310: Structural Concrete
G.Section 03575: Flowable Fill
1.3REFERENCES
A.AASHTO M 167: Corrugated Steel Structural Plate, Zinc-Coated, for
Field-Bolted Pipe, Pipe-Arches, and Arches
B.AASHTO M 219: Corrugated Aluminum Alloy Structural Plate for Field-
Bolted Pipe, Pipe-Arches, and Arches
C.AASHTO M 243: Field-Applied Coating of Corrugated Metal Structural
Plate for Pipe, Pipe-Arches, and Arches
D.AASHTO Manual for Bridge Evaluation
E.UDOT Bridge Management Manual
Structural Plate Pipe
F.UDOT Structures Design and Detailing Manual
1.4DEFINITIONS
A.Deflection – A deviation from a pipe’s original shape.
1.5SUBMITTALS
A.Manufacturer’s certificate of compliance for fabricated structure materials.
Refer to AASHTO M 167 and AASHTO M 219.
B.Fabrication and installation working drawings for review of fabricated
materials, and cast-in-place elements that are included in this item of work and are not detailed in the contract plans.
1.Include details not provided in the contract documents for the
fabrication, transportation, erection, and construction of the members included in this item of work.
2.Include bedding and backfill requirements.
3.Manufacturer’s installation instructions and incidental materials
required for installation.
4.Detail construction phases, layout, joint details, position of each
plate, assembly order and bolt tensioning sequence.
5.Detail cast-in-place elements included in this item of work.
6.Load rating
a.Required for structures which meet the definition of bridge or
when requirement is shown.
b.Load Rating Report and supplemental documentation
according to the AASHTO Manual for Bridge Evaluation, UDOT Structures Design and Detailing Manual and the UDOT Bridge Management Manual.
c.Include inventory and operating load ratings in a table on the
first sheet of the drawings.
7.Provide the seal of a Professional Engineer (PE) or Professional
Structural Engineer (SE) licensed in the State of Utah on the drawings and supporting engineering calculations for the following:
a.Designs of structural plate pipe structures
b.Structural members and ancillary appurtenances designed
by the fabricator
c.Connections to cast-in-place members and appurtenances.
d.Load ratings
e.Other means and methods that require an engineer’s design
Structural Plate Pipe
PART 2 PRODUCTS
2.1BEDDING
A.Granular Backfill Borrow – Refer to Section 02056.
2.2GEOTEXTILES
A.Refer to Section 02075.
2.3FLOWABLE FILL
A.No maximum strength limitation is required for this application.
B.Refer to Section 03575.
2.4BORROW AND BACKFILL
A.Refer to Section 02056.
2.5CONCRETE
A.Use Class AA(AE) concrete according to Section 03055.
2.6REINFORCING STEEL
A.Use coated reinforcing steel according to Section 03211.
2.7STEEL STRUCTURAL PLATE
A.Corrugated Steel Structural Plate – Refer to AASHTO M 167.
B.Corrugated Aluminum Alloy Structural Plate – Refer to AASHTO M 219.
2.8NUTS AND BOLTS
A.Refer to authorized fabrication and installation drawings.
2.9FIELD APPLIED ASPHALT MASTIC
A.Refer to AASHTO M 243.
Structural Plate Pipe
2.10FABRICATION
A.Design and load rate structural plate pipe structures and cast-in-place
concrete elements in accordance with the UDOT Structures Design and Detailing Manual and UDOT Bridge Management Manual.
1.Design structures for HL-93 vehicular live loading.
PART 3 EXECUTION
3.1INSTALLATION
A.Excavation and Preparation
1.Refer to Section 02317.
2.Keep trenches free from water.
3.Prepare subgrade to provide a firm and uniform bearing throughout
the entire length of the structure.
a.Scarify and compact the top 8 inches of the excavated
ground surface to at least 90 percent of the maximum laboratory density.
4.Place geotextile and bedding according to the authorized
fabrication and installation drawings and as shown.
B.Assembly
1.Assemble structural plate pipe structures according to the
authorized fabrication and installation drawings.
2.Provide loose-bolt assembly to maintain structure shape during
erection unless temporary bracing is required.
a.Properly align plates to avoid permanent deflection from the
design shape before bolt tightening.
3.Install temporary bracing to maintain structure shape during
erection when required.
a.Remove temporary bracing when backfilling reaches the top
quadrant of the structure.
4.Do not exceed the manufacturer’s assembly tolerances before
backfilling.
C.Backfill
1.Backfill structure according to the authorized fabrication and
installation drawings.
2.Install flowable fill when shown.
a.Do not backfill against flowable fill until it meets a strength of
at least 50 psi.
Structural Plate Pipe
3.Check and control the deflection of the structure during the entire
backfilling operation.
a.Do not exceed the manufacturer’s recommended limits.
D.Cast-In-Place Concrete
1.Construct in accordance with the authorized fabrication and
installation drawings.
2.Refer to Section 03310.
3.Clean bonding surfaces between elements of debris, dust, and rust
before connecting elements.
4.Spray or brush-coat aluminum pipe in permanent contact with
concrete with asphalt mastic to a minimum thickness of 0.05 inches.
5.Cast the Department structure number into the exposed faces of
the reinforced concrete slope collar or headwall at each end of the structure as shown.
END OF SECTION
Structural Plate Pipe
Structural Plate Pipe in other states
Utah revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.
Source: Utah Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 1134–1138 of 1,331.
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