The document describes typical construction equipment used for different activities at substation and transmission line projects. It lists equipment such as bulldozers, excavators, cranes, trucks, pavers and other machinery. For each piece of equipment it provides the use, approximate quantity needed, expected duration on site in days, and average hours of use per day. The activities covered include site development, below and above grade construction, foundation installation, pole erection, conductor stringing and testing/commissioning work.

1. ATTACHMENT 3-B: TYPICAL CONSTRUCTION EQUIPMENT BY ACTIVITY

3. Site
Development
Activity
San Diego Gas & Electric Company
East County Substation Project
ECO Substation
Project
Component
2
Construct,
maintain, and
upgrade roads
Road grader
3
2
Scraper
3
Grade pads and
access roads
Bulldozer
2
Compactor
Loader
Backhoe
Rock truck
Rock crusher
Water truck
5
1
Maintain and
refuel equipment
Maintenance
truck
30
2
3
2
1
1
3
5
10
Transport and
support
construction
personnel
Approximate
Quantity
¾-ton or 1-ton
pickup truck
Use
Equipment
Approximate
Number of
People
ATTACHMENT 3-B: TYPICAL CONSTRUCTION EQUIPMENT BY ACTIVITY
Load dump trucks
and stockpile
Suppress dust
Crush rock
Move rock
3
1
1
2
2
Grade pads and
access roads
Excavate
3
Grade pads and
access roads
200
36
36
100
100
100
100
100
100
130
130
Approximate
Duration On
Site
(8-hour days)
August 2009
3-B-1
6
6
6
5
6
8
8
6
8
2
2
Average
Duration of
Use
(hours per
day)
Attachment 3-B: Typical Construction Equipment by Activity

4. Activity
Site
Development
(continued)
Below Grade
Construction
30
5
3
1
8
30
2
20
Concrete truck
¾-ton or 1-ton
pickup truck
Asphalt Haul
Trucks
Vibrating roller
Asphalt
emulsion truck
Asphalt paver
Water truck
Concrete truck
Haul truck
Maintain and
refuel equipment
Pour concrete
Transport and
support
construction
personnel
Transport asphalt
Compact soil and
asphalt
Pave access roads
Pave access roads
Transport water
Place concrete
Transport Class II
import material
2
1
10
10
5
3
1
2
30
2
20
Approximate
Quantity
80
40
150
75
150
20
20
20
20
100
25
50
Approximate
Duration On
Site
(8-hour days)
6
6
2
3
2
6
6
6
6
2
3
10
Average
Duration of
Use
(hours per
day)
Use
10
Maintenance
truck
Drill pier
foundations
3
Equipment
1
Drill rig
Excavate pad
foundations
Approximate
Number of
People
6
Backhoe
San Diego Gas & Electric Company
East County Substation Project
3
Attachment 3-B: Typical Construction Equipment by Activity
Project
Component
ECO Substation
(continued)
August 2009
3-B-2

5. Above Grade
Construction
(continued)
Below Grade
Construction
(continued)
Activity
San Diego Gas & Electric Company
East County Substation Project
ECO Substation
(continued)
Project
Component
2
10
Compact soil
Transport and
support
construction
personnel
Compactor handheld
¾-ton or 1-ton
pickup truck
2
20
5
2
Set steel and
install equipment
Place material and
set steel
Bucket
truck/manlift
Crane
15
6
1
Maintain and
refuel equipment
Maintenance
truck
1
1
Suppress dust
Water truck
1
2
Duct bank and
conduit
installation
Backhoe
6
2
Install grounding
2
Trencher
6
4
Approximate
Quantity
6
Place material and
set steel
Light duty
crane
4
Use
Move rebar,
equipment,
masonry, and
other materials
Equipment
Fork lift/skid
steer
Approximate
Number of
People
100
100
150
150
80
150
60
60
60
75
Approximate
Duration On
Site
(8-hour days)
August 2009
3-B-3
4
6
2
2
6
6
7
7
4
6
Average
Duration of
Use
(hours per
day)
Attachment 3-B: Typical Construction Equipment by Activity

6. 6
Bucket truck
Forklift
Boom Truck
Place material and
set steel
Set steel and
install equipment
Unload and move
material
Place material and
set steel
4
2
2
2
2
Approximate
Quantity
40
40
20
20
100
100
Approximate
Duration On
Site
(8-hour days)
4
2
2
7
7
6
6
Average
Duration of
Use
(hours per
day)
Use
2
Crane
Transport and
support
construction
personnel
2
30
24
Equipment
4
¾-ton or 1-ton
pickup truck
Transport and
support
construction
personnel
2
5
5
Activity
Above Grade
Construction
(continued)
2
Heavy Van
Outdoor check out
of equipment
1
5
Approximate
Number of
People
Communication
Equipment
Installation
8
Manlift
Extract and
remove oil
1
2
2
Diesel
generator
(500 kW)
Extract and
remove oil
Testing and
Commissioning
1
Crane
San Diego Gas & Electric Company
East County Substation Project
3
Attachment 3-B: Typical Construction Equipment by Activity
Project
Component
ECO Substation
(continued)
August 2009
3-B-4

7. Tower
Installation and
Conductor
Stringing
Install
Foundations
Access Roads
General
Construction
Activity
San Diego Gas & Electric Company
East County Substation Project
SWPL Loop-In
Project
Component
Backhoe
Drill rig
2
2
Conductor
Installation
Conductor
Installation
Puller and
tensioner
Reel trailer
4
4
4
Tower Erection
and Conductor
Installation
2
Tower Erection
Bucket truck
4
2
1
Foundation
Construction
Foundation
Construction
3
Pour Concrete
1
1
2
Approximate
Quantity
12
Large crane
2
2
Concrete truck
3
Equipment access
Maintain and
refuel equipment
Maintenance
truck
1
Bulldozer
Transport
construction
personnel
¾-ton or 1-ton
pickup truck
4
1
Use
Equipment
Approximate
Number of
People
20
20
30
10
10
10
10
10
40
60
Approximate
Duration On
Site
(8-hour days)
August 2009
3-B-5
8
8
8
6
6
6
3
4
2
2
Average
Duration of
Use
(hours per
day)
Attachment 3-B: Typical Construction Equipment by Activity

8. Activity
General
Construction
12
2
3
3
2
Shop van
Aerial lift truck
Mechanic truck
Rigging truck
2-ton flatbed
truck or flatbed
boom truck
Helicopter
Load and unload
materials
Store tools
Access poles,
string conductor,
and other uses
Service and repair
equipment
Haul tools and
equipment
Haul and unload
materials
Transport and
install structures
and conductor
2
2
2
3
2
3
2
1
Approximate
Quantity
80
60
40
90
60
60
60
60
60
Approximate
Duration On
Site
(8-hour days)
4
4
5
4
5
4
4
4
4
Average
Duration of
Use
(hours per
day)
Use
2
Small mobile
crane (12 tons)
Haul structures
and equipment
4
Equipment
4
Semi tractortrailer
Operate air tools
Approximate
Number of
People
2
Air
compressors
5
4
60
Dump truck
San Diego Gas & Electric Company
East County Substation Project
6
6
Haul excavated
materials and
import backfill
Attachment 3-B: Typical Construction Equipment by Activity
Project
Component
138 kV
Transmission
Line
August 2009
3-B-6

9. Pole Foundation
Installation
Access Roads
General
Construction
(continued)
Activity
San Diego Gas & Electric Company
East County Substation Project
138 kV
Transmission
Line (continued)
Project
Component
1
2
Approximate
Quantity
1
1
4
2
2
Grade access
roads and pole
sites
Construct,
maintain, and
upgrade roads
Pour concrete
Excavate holes for
foundation and
pole installation
Compact soil
around structure
foundations
Bulldozer
Front-end
loader
Road grader
Compactor
Concrete truck
Drill rig with
augers
Air tampers
1
1
1
1
4
2
2
1
1
Break up rock and
excavate
Blasting rig
2
Suppress dust and
fire
Water truck
Transport
construction
personnel
¾-ton or 1-ton
pickup truck
3
1
Use
Equipment
Approximate
Number of
People
1
Construct,
maintain, and
upgrade roads
Construct access
roads
60
40
50
80
80
80
80
30
80
90
Approximate
Duration On
Site
(8-hour days)
August 2009
3-B-7
4
5
4
5
5
5
5
3
5
4
Average
Duration of
Use
(hours per
day)
Attachment 3-B: Typical Construction Equipment by Activity

10. Activity
Pole Installation
Conductor
Stringing and
Sagging
Site
Development
10
2
5
10
2
1
2
Maintenance
truck
¾-ton or 1-ton
pickup truck
Splice trailer
Conductor reel
trailer
Puller and
tensioner
Take-up trailer
Backhoe
Large mobile
crane (75 tons)
Grade pad, access
road, clear and
grub
Maintain and
refuel equipment
Transport and
support
construction
personnel
Store splicing
supplies
Transport cable
reels and feed
cables into conduit
Pull conductor and
wire
Install conductor
Excavate trenches
Erect structures
2
1
1
5
2
2
2
2
1
1
Approximate
Quantity
50
20
50
65
65
40
40
40
40
3
20
Approximate
Duration On
Site
(8-hour days)
4
6
6
2
2
4
4
4
4
5
4
Average
Duration of
Use
(hours per
day)
Use
1
Bulldozer
Grade pad and
access road
2
Equipment
2
Scraper
Compact soil and
asphalt
Approximate
Number of
People
2
Compactor
San Diego Gas & Electric Company
East County Substation Project
2
Attachment 3-B: Typical Construction Equipment by Activity
Project
Component
138 kV
Transmission
Line (continued)
Boulevard
Substation
August 2009
3-B-8

11. Site
Development
(continued)
Activity
San Diego Gas & Electric Company
East County Substation Project
Boulevard
Substation
(continued)
Project
Component
Approximate
Quantity
1
1
Pave access roads
Pave access roads
Compact soil and
asphalt
Excavator
Rock crusher
Water truck
Haul truck
Haul truck
Concrete truck
Water truck
Asphalt paver
Asphalt
emulsion truck
Vibrating roller
1
1
8
8
4
15
4
1
1
Transport water
1
15
4
8
Import Class II
material
Place concrete
8
1
1
1
Export material
Suppress dust
Crush rock
Grade pad
1
1
Excavate trenches
Backhoe
Load dump trucks
and stockpile
2
2
Use
Loader
Equipment
2
Approximate
Number of
People
25
5
5
25
7
7
40
65
20
30
30
40
Approximate
Duration On
Site
(8-hour days)
August 2009
3-B-9
4
6
6
2
3
10
10
5
6
4
6
8
Average
Duration of
Use
(hours per
day)
Attachment 3-B: Typical Construction Equipment by Activity

12. Activity
Site
Development
(continued)
Below Grade
Construction
2
1
1
30
12
7
Walk-behind
trencher
Skid steer
loader
Backhoe (with
drill
attachment)
Maintenance
truck
Concrete truck
¾-ton or 1-ton
pickup truck
Asphalt haul
trucks
Suppress dust
Excavate trenches
Transport soil
Drill/excavate pier
foundations
Maintain and
refuel equipment
Place concrete
Transport and
support
construction
personnel
Transport asphalt
2
1
1
2
1
1
1
3
7
Approximate
Quantity
30
72
72
72
72
72
72
30
72
5
Approximate
Duration On
Site
(8-hour days)
4
4
2
4
6
4
2
8
2
6
Average
Duration of
Use
(hours per
day)
Use
1
Water truck
Compact soil
2
Equipment
1
Compactor handheld
Export material
Approximate
Number of
People
2
Haul truck
San Diego Gas & Electric Company
East County Substation Project
60
Attachment 3-B: Typical Construction Equipment by Activity
Project
Component
Boulevard
Substation
(continued)
August 2009
3-B-10

13. Above Grade
Construction
Activity
San Diego Gas & Electric Company
East County Substation Project
Boulevard
Substation
(continued)
Project
Component
1
2
1
2
Maintain and
refuel equipment
Install/test
batteries and
breakers
Support steel
construction work
Maintenance
truck
Heavy van
Boom truck
6
1
6
1
1
4
2
1
Support bus and
disconnect
construction
Support steel and
equipment
construction
Transport tools for
breaker and
transformer
installation and
construction
Support the steel
and transformer
installation
Support 138 kV
GCB Installation
Manlift
All-terrain
extendable
forklift
Crew assist
vehicle
Two-man
bucket truck
Bucket truck
4
1
6
4
1
8
Transport and
support
construction
personnel
Approximate
Quantity
¾-ton or 1-ton
pickup truck
Use
Equipment
Approximate
Number of
People
20
95
62
125
125
125
40
25
50
Approximate
Duration On
Site
(8-hour days)
August 2009
3-B-11
4
4
2
6
6
6
2
2
3
Average
Duration of
Use
(hours per
day)
Attachment 3-B: Typical Construction Equipment by Activity

14. Activity
Above Grade
Construction
(continued)
Testing and
Commissioning
Existing
Substation
Demolition
5
3
3
2
1
1
Roller
compactor
Haul truck
Backhoe with
breaker
attachment
Heavy van
¾-ton or 1-ton
pickup truck
Diesel
generator (500
kW)
Small crane
Remove the
transformer
Compact backfill
Remove concrete
from site
Break and remove
concrete
foundations and
backfill
Test relays and
RTU
Transport and
support
construction
personnel
Distribute oil
Install
transformers
1
1
1
5
1
2
1
1
1
Approximate
Quantity
3
4
1
1
2
5
75
20
6
6
Approximate
Duration On
Site
(8-hour days)
3
3
6
4
3
6
2
2
24
6
Average
Duration of
Use
(hours per
day)
Use
1
Crane
Remove debris
2
Equipment
2
Haul truck
Extract and
remove oil
Approximate
Number of
People
1
Oil truck/pump
San Diego Gas & Electric Company
East County Substation Project
2
Attachment 3-B: Typical Construction Equipment by Activity
Project
Component
Boulevard
Substation
(continued)
August 2009
3-B-12

15. Tower and
Building
Installation
Site
Development
and Foundations
Installation
Existing
Substation
Demolition
(continued)
Activity
San Diego Gas & Electric Company
East County Substation Project
White Star
Communication
Facility
Boulevard
Substation
(continued)
Project
Component
Approximate
Quantity
Support substation
demolition
Backhoe
Crane
10
3
Concrete truck
2
1
¾-ton or 1-ton
pickup truck
10
Drill rig
5
Transport and
support
construction
personnel
3
1
Suppress dust
Water truck
1
Transport material
1
2
Use
Forklift
Manlift
Equipment
1
4
Approximate
Number of
People
10
1
Install
communication
tower and
prefabricated
building
Excavate pad
foundation
Place concrete
1
Drill pier
foundation
2
2
2
2
15
24
24
24
Approximate
Duration On
Site
(8-hour days)
August 2009
3-B-13
6
6
6
6
2
2
6
8
Average
Duration of
Use
(hours per
day)
Attachment 3-B: Typical Construction Equipment by Activity