descriptive warning signs shall be provided in accordance with the requirements of the Department of Transportation.
3307
.
4.3 Vehicular traffic.
Whenever any work is being performed over, on, or in close proximity to a highway, street, or
similar public way, control and protection of traffic shall be provided by barriers, signals, signs, flagperson, or other devices,
equipment, and personnel in accordance with the requirements of the Department of Transportation.
3307.4.4 Areas open to persons other than workers. A flagperson shall be provided whenever intermittent operations are
conducted on, or adjacent to, areas open to use by persons other than workers, or when dangerous operations, such as blasting,
may affect such areas. Where required by the Department of Transportation, designated personnel shall also be provided in
addition to flag persons.
3307.4.5 Additional signs. In addition to the requirements of this section, information panels and signs shall also be provided as
required by Sections 3301.9 and 3301.10.
3307.4.6 Prohibited signs. No illuminated business or advertising sign shall be permitted on any protective structure required by
this section. Other than as specified in Sections 3301.9 or 3301.10 there shall be no sign, information, pictorial representation, or
any business or advertising messages posted on a sidewalk shed, bridge, fence, or other protective structure listed in this section
that is erected at the construction or demolition site.
3307.4.7 Work or storage zones. Where work or storage related to the construction or demolition of a building or structure is
occurring adjacent to a sidewalk shed or equivalent overhead protection, and such area is not closed with a fence in accordance
with Section 3307.7 or a permanent façade, a solid barrier extending at least 4 feet (1219 mm) in height from the level of the
ground shall be provided. The space between the top of the barrier and the deck of the overhead protection shall be enclosed with
a wire screen comprised of not less than number 18 gage wire mesh, or equivalent synthetic netting, with openings in the wire or
synthetic mesh no larger than ½ inch (13 mm).
Exception: In the area where a material hoist, personnel hoist, hoistway, or chute is located, the solid barrier shall extend from
level of the ground to the deck of the overhead protection.
3307.5 Watchperson and flagperson. Watchpersons shall be provided as required by Section 3303.3. Flagpersons shall be provided
as required by Section 3307.4.
3307.6 Sidewalk sheds.
Sidewalk sheds shall be provided as required by this section to protect pedestrians from construction or
demolition operations.
3307.6.1 Permit. No sidewalk shed shall be installed without a permit in accordance with the requirements of Chapter 1 of Title
28 of the Administrative Code.
3307.6.2 Where required. A sidewalk shed shall be installed and maintained to protect all sidewalks, walkways, and pathways
within the property line of a site, and all public sidewalks that abut the property, as follows:
1. When such sidewalk, walkway, or pathway is to be located immediately below a scaffold, mast climber, or chute. The
sidewalk shed shall be installed prior to the installation of such equipment and shall not be removed until such
equipment has been dismantled and/or removed from the area being protected;
2. When a structure higher than 40 feet (12 192 mm) or greater is to be constructed, and the sidewalk, walkway, or
pathway is within a perpendicular distance from the new structure that is equal to or less than half the height of the new
structure. The sidewalk shed shall be installed when the structure reaches the planned height of the shed. Such shed
shall not be removed until the structure is enclosed, all exterior work has been completed and the sash is glazed above
the second story, the façade has been cleaned down, and all exterior chutes, scaffolds, mast climbers, and hoisting
equipment have been dismantled and removed from the site;
3. When a portion of a façade over 40 feet (12 192 mm) above curb level is to be constructed, altered, maintained, or
repaired, or a vertical or horizontal enlargement is to occur at a height over 40 feet (12 192 mm) above curb level, and
the sidewalk, walkway, or pathway is within a perpendicular distance from the structure that is equal to or less than half
the height of such façade work or vertical or horizontal enlargement. The sidewalk shed shall be installed prior to the
commencement of work at a height greater than 40 feet (12 192 mm) above curb level. Such shed shall not be removed
until the building is enclosed, all exterior work has been completed and the sash is glazed above the second story, the
façade has been cleaned down, and all exterior chutes, scaffolds, mast climbers, and hoisting equipment have been
dismantled and removed from the site; or
4. When a structure higher than 25 feet (7620 mm) is to undergo a full demolition, or when exterior partial demolition,
other than that performed in conjunction with the construction, alteration, maintenance, or repair of a façade, is to occur
at a height greater than 25 feet (7620 mm) above curb level. The sidewalk shed shall be installed prior to the