Karuk Tribe Housing Authority: Orleans 8 Single Family Homes

Overview

The Karuk Tribe Housing Authority (KTHA) requests sealed bids for all necessary materials, labor, and equipment necessary to construct 8 single family turn-key homes located at 38030 Hwy 96 in Orleans California (Humboldt County) as outlined further in the attached Scope of Work. Building permits and associated fees will be provided by KTHA.

All bidders must attend the Mandatory Site Visit on October 3, 2025 at 10am at 38030 Highway 96, Orleans, CA  95556.

Bid Documents:

Orleans 8 Single Family Homes Notice to Bidders

8 Single Family Residential Plans, 4/20/2022

Photovoltaic System Layout #1 03/27/2025

Photovoltaic System Layout #2 03/27/2025

Photovoltaic System Layout #3 03/27/2025‍

Submission Details

Sealed Bids must be hand-delivered, mailed, or emailed by Friday, October 17, 2025 at 2pm to:

Felicia Wolfenden, Executive Assistant
Karuk Tribe Housing Authority
635 Jacobs Way, PO Box 1159
Happy Camp, CA 96039
Email: fwolfenden@karuk.us

(Faxes will not be accepted)

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IMPORTANT ATTACHMENTS

1. Photovoltaic System Layout #1 (03.27.2025)

This document provides the full design package for a roof-mounted solar photovoltaic system at the Orleans site. It includes cover sheets, site plans, roof module layouts, stringing diagrams, attachment details, a single-line electrical diagram, electrical calculations, labels/placards, and equipment datasheets. The system uses Mission Solar Energy modules, AP Smart rapid shutdown devices, and a Fronius Primo Gen24 inverter. It documents compliance with California Electrical, Fire, Residential, and Building Codes, and provides all technical specifications needed for permitting, installation, and inspection

2. Photovoltaic System Layout #2 (03.27.2025)

This document contains the engineering design package for a roof-mounted photovoltaic (PV) system at the Orleans site (38030 State Highway 96, Orleans, CA). It details:

• (05) Mission Solar Energy MSE410HT0B modules (2.050 kW DC total system size, 1.852 kW CEC AC)
• (05) AP Smart RSD-S-PLC rapid shutdown devices
• (01) Fronius Primo GEN24 3.8kW inverter (240V)
• Roof plan and module layout, showing fire setbacks and attachment points
• Structural attachment details (IronRidge XR10 rails, FlashFoot2 mounts)
• Electrical single-line diagram, wiring tables, conduit routing, and safety labeling requirements
• Equipment datasheets for panels, inverter, and hardware

This package is intended for permitting, inspection, and installation compliance with California Electrical, Residential, Fire, and Building Codes

3. Photovoltaic System Layout #3 (03.27.2025)

This is a nearly identical design package for another section of the Orleans site, using the same system size and equipment:

• 2.050 kW DC / 1.852 kW CEC AC
• (05) Mission Solar Energy MSE410HT0B modules
• (05) AP Smart RSD-S-PLC devices
• (01) Fronius Primo GEN24 3.8kW inverter

It includes cover sheet, roof plan (different azimuth orientation than #2), structural attachments, single-line electrical diagram, conductor and voltage drop calculations, labeling layouts, and equipment datasheets

4. 8 Single Family Residential Plans (04.20.2022)

This document contains architectural and civil engineering plans for a proposed Karuk Tribe Housing Authority development in Orleans. It covers eight single-family homes arranged around a cul-de-sac, with site civil improvement plans, plot plans, foundation notes, structural framing, floor plans, elevations, roof plans, electrical plans, fire sprinkler layouts, and Title 24 energy compliance reports. It also includes wildland fire safety requirements, defensible space guidelines, and infrastructure notes (sewer, water, and utilities). These plans were prepared by Trinity Valley Consulting Engineers as part of a housing development project