E-Pages_from_MACA_229870-258616-258617_-_FINAL_CDS_REV_(1)_0002.pdf
PDF 6 MB Posted
- Attached to
- MACA - REHAB CAVE TRAILS
- Solicitation number
- 140P5326R0007
About this file
These are final construction documents for Mammoth Cave National Park electrical system improvements covering three PMIS projects (229870, 258617, and 258616). The documents provide technical specifications and drawings for temporary construction power delivery and permanent electrical system modifications across multiple trail sections within the cave.
The project requires the contractor to establish temporary construction power through existing electrical infrastructure while minimizing risk to the park's permanent distribution system. Key requirements include: deriving 480-volt, single-phase power from an existing utility transformer via a designated service drop with overcurrent protection via a fused disconnect switch; providing a main overcurrent device at the utilization point to protect the park's electrical system from potential upstream faults; routing temporary feeders along cave trail edges to minimize archaeological impact; and properly sizing all conductors, equipment, and materials in accordance with the 2020 National Electrical Code. The contractor must submit an electrical coordination study prepared by a licensed electrical engineer demonstrating that the main overcurrent device will selectively coordinate with the park's upstream protection devices. Upon project completion, the contractor is responsible for removing all temporary equipment and restoring affected electrical infrastructure to its preconstruction condition at no additional cost. The drawings depict specific tie-in points, transformer schedules, lighting control panels, junction box locations, and multi-device pedestals across the River Hall Trail, Upper Historic Trail, Ruins of Karnak Trail, and Rafinesque Avenue Trail sections.
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Text version
FINAL CONSTRUCTION DOCUMENTS
MACA PMIS NO. 229870, 258617 & 258616
0 2.5 5 10 Feet
EB
METAL
STEPS
METAL
HANDRAIL
(TYP.)
METAL
PLATFORM
METAL
STEPS
METAL
HANDRAIL
(TYP.)
BENCH
(TYP.)
JUNCTION
BOX
SUPPORT
COLUMN
TRAV 642
TRAV 643
TRAV 641
TRAV 640
EB
EB
FINAL CONSTRUCTION DOCUMENTS
MACA PMIS NO. 229870, 258617 & 258616
0 2.5 5 10 Feet
SCALE:2 NOT TO SCALE
TEMPORARY CONSTRUCTION POWER TIE-IN POINT
SCALE:3 NOT TO SCALE
EXISTING TRANSFORMER SCHEDULE
SCALE:1 RIVER HALL TRAIL SECTION
0 2.5 5 10 Feet
SCALE:2 NOT TO SCALE
TEMPORARY CONSTRUCTION POWER TIE-IN POINT
SCALE:3 NOT TO SCALE
EXISTING TRANSFORMER SCHEDULE
SCALE:1 UPPER HISTORIC TRAIL SECTION
0 2.5 5 10 Feet
PLATFORM
STEPS
METAL
HANDRAIL
(TYP.)
BENCH
(TYP.)
APPROX. CAVE WALL
CAVE TRAIL
OUTER EDGE
(TYP.)
LIGHT
FIXTURE
(TYP.)
JUNCTION
BOX
APPROX. CAVE WALL
JUNCTION
BOX
SUPPORT
COLUMN
TRAV 643
TRAV 641
EB
J
J
FINAL CONSTRUCTION DOCUMENTS
MACA PMIS NO. 229870, 258617 & 258616
0 2.5 5 10 Feet
SCALE:2 NOT TO SCALE
EXISTING LIGHTING CONDITIONS
SCALE:1 RIVER HALL TRAIL SECTION
APPROX. CAVE WALL
STEPS
METAL
STEPS
METAL
PLATFORM
APPROX. CAVE WALL
EB
EB
LIGHT
SWITCH BOX
J
FINAL CONSTRUCTION DOCUMENTS
MACA PMIS NO. 229870, 258617 & 258616
0 2.5 5 10 Feet
SCALE:1 RUINS OF KARNAK TRAIL SECTION
TRAV 514
TRAV 512
TRAV 513
APPROX. CAVE WALL
APPROX. CAVE WALL
APPROX. CAVE WALL
SIGN
SIGN
SIGN
BENCH
ELEC.
BOX
EB
J
FINAL CONSTRUCTION DOCUMENTS
MACA PMIS NO. 229870, 258617 & 258616
0 5 10 20 Feet
SCALE:2 NOT TO SCALE
EXISTING MULTI-DEVICE PEDESTAL
SCALE:1 RAFINESQE AVENUE TRAIL SECTION
0 2.5 5 10 Feet
SCALE:2 NOT TO SCALE
EXISTING MULTI-FUNCTION DEVICE PEDESTAL
SCALE:1 NOT TO SCALE
RUINS OF KARNAK LIGHTING SECTION AT HAND RAIL
File details come from the government source that posted it. Updated .