B08_Attach_02_North_Rim_Final_CDs_Volume_04_20261012.pdf
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- 140PP027R0005
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This document is a set of design drawings and specifications for infrastructure rehabilitation at the North Rim of Grand Canyon National Park, prepared by HDR Engineering, Inc. as the prime A/E firm. Volume 4 specifically addresses pipelines extending from Roaring Springs Cave to the Roaring Springs Pumphouse (RSPH), covering approximately 6.7 miles of utility corridor rehabilitation work at a UNESCO World Heritage Site. The drawings include general site plans, demolition plans, grading and erosion control plans, sheet maps, plan and profile views (Station 401+00 to 407+71), enlarged site plans for the cave entrance, civil details for waterline replacement and power/fiber optic installation, photo details of existing conditions, and electrical one-line diagrams with panelboard schedules. Key construction elements include removal of existing pipeline sections and associated electrical/communications infrastructure, installation of new 12-inch steel waterline with specialized anchoring systems using wire rope and rock anchors, protective concrete pipe cladding in exposed areas, and new power distribution and fiber optic cable routing. The construction limits extend approximately 6.7 miles from the cave source to the pumphouse, with specialized details for steep terrain crossing, cave entrance equipment staging, and environmental protection measures including sediment control logs and delineated wetlands protection.
The project documentation indicates multiple coordination requirements with existing utilities and systems referenced in other volumes covering North Rim water treatment, power distribution networks, and wastewater collection systems. Technical specifications address cathodic protection for pipe systems, grout-bonded rock anchors with minimum 5,000 PSI unconfined compressive strength, armored fiber optic cable installations with band clamps every five feet, and a 60-amp single-phase electrical service panel at the cave location. All work must comply with National Park Service standards and UNESCO World Heritage Site protection requirements, with contractor coordination mandated through the Owner's Representative for any modifications or repairs discovered during construction.
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Text version
VOLUME # DESCRIPTION
VOLUME 0 GENERAL
VOLUME 1 PIPELINES - NORTH RIM
VOLUME 2 PIPELINES - NORTH RIM TO ROARING SPRINGS PUMPHOUSE (RSPH)
VOLUME 3 PIPELINES - NORTH RIM TO SUPAI TUNNEL
VOLUME 5 ROARING SPRINGS PUMPHOUSE (RSPH)
VOLUME 6 NORTH RIM WATER TREATMENT PLANT
VOLUME 7 NOT USED
VOLUME 8 NORTH RIM WASTEWATER COLLECTION SYSTEM
VOLUME 9 POWER DISTRIBUTION - NORTH RIM
VOLUME 10 POWER DISTRIBUTION - NORTH RIM TO ROARING SPRINGS PUMPHOUSE (RSPH)
VOLUME 11 POWER DISTRIBUTION - ROARING SPRINGS PUMPHOUSE (RSPH) TO MANZANITA
VOLUME 12 POWER SYSTEM - COTTONWOOD CAMPGROUND
VOLUME 4 PIPELINES - ROARING SPRINGS CAVE TO ROARING SPRINGS PUMPHOUSE (RSPH)
DATE:
DESIGNED:
TECH. REVIEW:
SUB SHEET NO.
PMIS/PKG NO.
DRAWING NO.
SHEET
TITLE OF SHEET
OF
A/E FIRM
PRIME:
DENVER, CO 80202
HDR ENGINEERING, INC.
A u to d e s k D o c s /1
N P
S
G R
C A
N
R im U ti lit y
/1
G
E N
E R
A L
.r v t
/7
/2
:2
:5
P M
G001
NORTH RIM - GRAND CANYON NATIONAL PARK
318719
SHEET INDEX
S. RACE
B. LUSTER
AUG 2026
N. LYNCH
182752040
GENERAL
REHABILITATE NORTH RIM
INFRASTRUCTURE
VOLUME 4 - PIPELINES - ROARING SPRINGS CAVE TO
ROARING SPRINGS PUMPHOUSE (RSPH)
WORLD HERITAGE SITE
GRAND CANYON NATIONAL PARK
UNESCO
SHEET SUB SHEET SUB AREA TITLE OF SHEET
1 040G001 GENERAL SHEET INDEX
2 040C101 GENERAL SITE PLAN
3 041X101 RSPH PIPELINE REHABILITATION DEMOLITION PLAN
4 041C101 RSPH PIPELINE REHABILITATION GESC PLAN
5 041C102 RSPH PIPELINE REHABILITATION SHEET MAP
6 041C103 RSPH PIPELINE REHABILITATION PLAN AND PROFILE STA 401+00 TO STA 407+71
7 041C401 RSPH PIPELINE REHABILITATION ENLARGED SITE PLAN RS CAVE
8 041C501 RSPH PIPELINE REHABILITATION CIVIL DETAILS WATERLINE REPLACEMENT
9 041C502 RSPH PIPELINE REHABILITATION CIVIL DETAILS POWER AND FO INSTALLATION
10 041C901 RSPH PIPELINE REHABILITATION PHOTO DETAILS
11 041E601 RSPH PIPELINE REHABILITATION CAVE ONE LINE AND PANELBOARD SCHEDULE
GOUGH/LUSTERM. GOUGH
2NORTH RIM - GRAND CANYON NATIONAL PARK 11
DENVER, CO 80202
HDR ENGINEERING, INC.
GOUGH/LUSTER
3NORTH RIM - GRAND CANYON NATIONAL PARK 11
SCL
4NORTH RIM - GRAND CANYON NATIONAL PARK 11
DENVER, CO 80202
5NORTH RIM - GRAND CANYON NATIONAL PARK 11
PRIME:
HDR ENGINEERING, INC.
AUG 2026
6 11NORTH RIM - GRAND CANYON NATIONAL PARK
7NORTH RIM - GRAND CANYON NATIONAL PARK 11
UNPROTECTED PIPE OR
CATHODICALLY
PROTECTED PIPE
CATHODICALLY
PROTECTED PIPE
8NORTH RIM - GRAND CANYON NATIONAL PARK 11
R e g is t e r e d
P r of essional En g in e e r
(C iv il)
A
RIZONA, U.S
.A
CE
RT
IFICATE NO.
D a t e Signed ...
22198
NICHOLAS J.
LAFRONZ
5- 1-
DENVER, CO 80202
9NORTH RIM - GRAND CANYON NATIONAL PARK 11
10NORTH RIM - GRAND CANYON NATIONAL PARK 11
1.00 X 0.25 KNOCKOUTS
(25) (6)
DIMENSIONS: in.
(mm)
0.50 X 0.75 KNOCKOUTS
(13) (19)
HINGED DOOR WITH
PADLOCK HASP
BOTTOM
VIEW
16.00 (406)
4.75 (121)
DEAD FRONT CIRCUIT
BREAKER PANEL
SIDE
VIEW
11.90 (302)
11.00 (279)
0.31 DIA.
(8)
11.75 (298)
ONE TAB ON CENTERLINE
39.80 (1011)
41.00 (1041)
FRONT
VIEW
2.00 TYP.
(51)
FROM
VOLUME 5
MCC-RS-4LR
480V 1Φ
(2) #4, #4 GRD
30A/2P
10 KVA
480:120/240V 1Φ3W
DATE:
DESIGNED:
TECH. REVIEW:
SUB SHEET NO.
PMIS/PKG NO.
DRAWING NO.
SHEET
TITLE OF SHEET
OF
A/E FIRM
PRIME:
PM: MATTHEW GOUGH
DENVER, CO
HDR ENGINEERING, INC.
A u to d e s k D o c s /1
N P
S
G R
C A
N
R im U ti lit y
/1
G
E N
E R
A L
.r v t
/1
/2
:2
:0
A M
E601
NORTH RIM - GRAND CANYON NATIONAL PARK
318719
CAVE ONE LINE AND
PANELBOARD SCHEDULE
J. HUCKENPAHLER
P. DAVILA
MAY 2026
D. LOPEZ
182752041
RSPH PIPELINE REHABILITATION
DESIGN LOAD (KVA) 0.0 0.0 4.3 0.9 5.2 22 DESIGN AMPS
DEMAND FACTOR 1.25 NEC 1.00 20% --- 18 CONNECTED AMPS PHASE B (KVA) 1.4
CONNECTED LOAD (KVA) 0.0 0.0 4.3 --- 4.3 240 LINE-TO-LINE VOLTS PHASE A (KVA) 2.9
LTS REC POWER SPARE TOTAL PHASE BALANCE
LOAD SUMMARY
11 SPARE 20 1 B 20 1 SPARE 12
9 SPARE 20 1 A 20 1 SPARE 10
7 SPARE 20 1 B 20 1 SPARE 8
5 SPARE 20 1 A 15 1 1,440 CIRCUIT 2 6
3 CIRCUIT 3 1,440 15 1 B 4
1 CIRCUIT 1 1,440 15 1 A
60 2 MAIN CIRCUIT BREAKER
NO. DESCRIPTION LTS REC POWER AMPS P AMPS P LTS REC POWER DESCRIPTION NO.
CKT CONNECTED LOAD (VA) OCP OCP CONNECTED LOAD (VA) CKT
200% NEUTRAL: NO SERVICE ENTRANCE LABEL: YES
WIRE: 3+GND INTERRUPTING RATING (KA): 18 LOCATION: CAVE
PHASE: 1 MAIN OC DEVICE (A/PHASE): 60 MOUNTING: SURFACE
VOLTAGE: 120/240 BUS RATING (A): 60A ENCLOSURE: NEMA 3R
PANELBOARD NO: RS-CAVE-MPZ
1. UTILIZE UP TO 3 BRANCH CIRCUITS TO
FEED LOADS AT THE EXISTING CAVE
CONTROL PANEL.
CAVE POWER ONE LINE
KEYNOTES: X
SINGLE PHASE ENCLOSURE AA
11NORTH RIM - GRAND CANYON NATIONAL PARK 11
S. BILD
| VOLUME 4 - PIPELINES - ROARING SPRINGS CAVE TO ROARING SPRINGS PUMPHOUSE (RSPH) |
| 040 - GENERAL SHEETS |
| 040 G001 - SHEET INDEX |
| 040 C101 - SITE PLAN |
| 041 - DEMOLITION UTILITIES PLANS |
| 041 X101 - DEMOLITION PLAN |
| 041 UTILITY PLANS |
| 041 C101 - GESC PLAN |
| 041 C102 - SHEET MAP |
| 041 C103 - PLAN AND PROFILE STA 401+00 TO 407+71 |
| 041 C401 - ENLARGED SITE PLAN RS CAVE |
| 041 UTILITY DETAILS |
| 041 C501 - CIVIL DETAILS WATERLINE REPLACEMENT |
| 041 C502 - CIVIL DETAILS POWER AND FO INSTALLATION |
| 041 C901 - PHOTO DETAILS |
| 041 ELECTRICAL SHEETS |
| 041 E601 - CAVE ONE LINE AND PANELBOARD SCHEDULE |
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