This document provides an overview of the setup and operations of a precast segmental casting yard for the Tukwila Link Light Rail Project. It describes the layout of the yard including areas for casting typical segments, pier segments, and balanced cantilever segments using matchcasting forms and rebar jigs. It also discusses the daily operations for casting different segment types and storing segments before shipping them to the construction site for erection.

1. A 2007 pictorial review of a precast segmental yard setup
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2. Topics
— Overview
of
Tukwila
Link
Light
Rail
Project
— Cashmere
Casting
Yard
— Casting
Yard
Layout
— Geometry
Control
Basics
— Daily
Operations
— Span-­‐by-­‐Span
-­‐
Typical
Segment
Casting
— Span-­‐by-­‐Span
-­‐
Pier
Segment
Casting
— Balanced
Cantilever
-­‐
Segment
Casting
— Storage
Yard
— Shipping
— Site
Erection
— Other
Segmental
Projects
— Other
Casting
Yards
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3. Tukwila
Link
Light
Rail
— Owner:
Sound
Transit
Authority
— Design
Engineer:
Hatch
Mott
MacDonald
— Bridge
Designer:
International
Bridge
Technologies
— Construction
Manager:
Parsons
Brinckerhoff
Construction
Services
— Contractor:
PCL
Civil
Constructors,
Inc.
— Construction
Engineer:
T.Y.
Lin
International
— Precaster:
Bethlehem
Construction
— Post-­‐Tensioning
Supplier:
Schwager
Davis,
Inc.
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4. Types
of
Precast
Segmental
Construc;on
— Span-­‐by-­‐Span
Construction
— Majority
Are
120’
Simple
Span
Structures
— All
Precast
Concrete
Components
— Balanced
Cantilever
Construction
— Multi-­‐Span
Structures
— CIP
Main
Piers
— Remaining
Components
are
Precast
Concrete
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5. Cas;ng
Yard
Layout
(5)
Typical
Matchcasting
Forms
(5)
Typical
Rebar
Jigs
(2)
Pier
Matchcasting
Forms
(2)
Pier
Rebar
Jigs
(2)
Balanced
Cantilever
Matchcasting
Forms
(2)
Balanced
Cantilever
Rebar
Jigs
Arthur Palmer, Parsons Brinckerhoff

6. Matchcast
Forms
&
Rebar
Jigs
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23. Pier
Segments
&
Rebar
Jigs
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34. Balanced
Cantilever
Segments
&
Rebar
Jigs
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46. Typical
Casting
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59. Pier
Casting
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74. Balanced
Cantilever
Casting
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