Section 3104 — PEDESTRIAN WALKWAYS AND TUNNELS — 2025 California Building Code (Title 24, Part 2)

3104.1 General. ¶

3104.1 General. This section shall apply to connections between buildings such as pedestrian walkways or tunnels, located at, above or below grade level, that are used as a means of travel by persons. The pedestrian walkway shall not contribute to the building area or the number of stories or height of connected buildings. 3104.1.1 Application. Pedestrian walkways shall be designed and constructed in accordance with Sections 3104.2 through 3104.9. Tunnels shall be designed and constructed in accordance with Sections 3104.2 and 3104.10.

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted

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3104.2 Separate structures. ¶

3104.2 Separate structures. Buildings connected by pedestrian walkways or tunnels shall be considered to be separate structures. Exceptions: 1. Buildings that are on the same lot and considered as portions of a single building in accordance with Section 503.1.2. 2. [DSA-AC and HCD 1-AC] For purposes of accessibility in residential facilities as required by Chapters 11A and 11B, structur- ally connected buildings, buildings connected by stairs, walkways or roofs, and buildings with multiple wings shall be considered one structure.

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission

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3104.3 Construction. The pedestrian walkway shall be of noncombustible construction. ¶

3104.3 Construction. The pedestrian walkway shall be of noncombustible construction. Exceptions: 1. Combustible construction shall be permitted where connected buildings are of combustible construction. 2. Fire-retardant-treated wood, in accordance with Section 603.1, Item 1.3, shall be permitted for the roof construction of the pedestrian walkway where connected buildings are not less than Type I or II construction.

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height

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3104.4 Contents. ¶

3104.4 Contents. Only materials and decorations approved by the building official shall be located in the pedestrian walkway.

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3104.5 Connections of pedestrian walkways to buildings. ¶

3104.5 Connections of pedestrian walkways to buildings. The connection of a pedestrian walkway to a building shall comply with Section 3104.5.1, 3104.5.2, 3104.5.3 or 3104.5.4. Exception: Buildings that are on the same lot and considered as portions of a single building in accordance with Section 503.1.2. 3104.5.1 Fire barriers. Pedestrian walkways shall be separated from the interior of the building by not less than 2-hour fire barriers constructed in accordance with Section 707 and Sections 3104.5.1.1 through 3104.5.1.3. 3104.5.1.1 Exterior walls. Exterior walls of buildings connected to…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3104.6 Public way. Pedestrian walkways over a public way shall comply with Chapter 32. ¶

3104.6 Public way. Pedestrian walkways over a public way shall comply with Chapter 32. [BE] 3104.7 Egress. Access shall be provided at all times to a pedestrian walkway that serves as a required exit. [BE] 3104.8 Width. The unobstructed width of pedestrian walkways shall be not less than 36 inches (914 mm). The total width shall be not greater than 30 feet (9144 mm). [BE] 3104.9 Exit access travel. The length of exit access travel shall be 200 feet (60 960 mm) or less. Exceptions: 1. Exit access travel distance on a pedestrian walkway equipped throughout with an automatic sprinkler system in…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3104.10 Tunneled walkway. ¶

3104.10 Tunneled walkway. Separation between the tunneled walkway and the building to which it is connected shall be not less than 2-hour fire-resistant construction and openings therein shall be protected in accordance with Section 716.

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