Chapter 18.20
TRAFFIC DEVICES AND STREET ILLUMINATION
Sections:
18.20.050 Street illumination.
18.20.010 Traffic signs.
Traffic signs shall be furnished and erected in conformance with MUTCD and the standard specifications supplemented by the state of Oregon, and/or modified as follows. (Ord. 2875 Appx. § 410, 2003)
18.20.020 Street name signs.
(1) Sign Placement. In business districts and on major arterials, street name signs should be placed in diagonally opposite corners so that they will be on the right-hand side of the intersection for traffic on the minor street.
In residential districts, at least two sets of street name signs will be mounted at each intersection.
On T-intersections, the street name signs will be designated at two locations. One set of street name signs shall be placed at end of a T-intersection, and the second set placed at the right-hand corner of the intersecting street.
(2) Signs. Street name signs shall be ordered through the public works department. To ensure compliance with current city standards, the contractor or developer shall order all necessary signs by contacting public works.
Contractor will provide V-locks per the standard details, verifying that the V-lock is installed plumb. City crews will install signs and contractor shall be billed for time and materials. Final approval will not be given until all street signs are ordered, paid for, and properly installed unless bonded for or otherwise satisfied. (Ord. 2875 Appx. § 420, 2003)
18.20.030 Traffic signals.
(1) Design and Installation Requirements. Traffic signal installation shall conform with MUTCD and the Oregon State Department of Transportation revisions.
Manuals to consider as text are:
(a) MUTCD.
(b) Oregon amendments.
(c) “Standard Specifications for Highway Construction” (ODOT).
(d) “Standard Specifications for Microcomputer Signal Controller” (ODOT).
(e) “Standard Drawings for Design and Construction” (ODOT).
(f) “Field Inspector’s Manual for Signal Construction” (ODOT). (Ord. 2875 Appx. § 430, 2003)
18.20.040 Traffic marking.
Traffic marking shall follow the MUTCD and TCDH as revised by ODOT.
Material specifications shall conform to ODOT standard specifications for construction.
(1) Stencils. Contact public works for correct stencil applications.
(2) Materials. All thermoplastic material shall conform to state specifications. All hot thermoplastic shall be alkyd based.
(3) Application. Existing surfacing which is to receive the thermoplastic material shall be mechanically wire brushed to remove all dirt and contaminants. Surfaces of new Portland cement concrete pavement to receive the thermoplastic material shall be mechanically wire brushed or abrasive blast cleaned to remove all lattice and curing compound.
Existing pavement markers which are damaged by blast cleaning or wire brushing shall be removed and replaced by the contractor at his expense.
Thermoplastic material shall be applied only to dry pavement surfaces and only when the pavement surface temperature is above 50 degrees Fahrenheit.
A primer, of the type recommended by the manufacturer of the thermoplastic material, shall be applied to all Portland cement concrete surfaces. The primer shall be applied immediately in advance of, but concurrent with, the application of thermoplastic material. The primer shall be applied at the application rate recommended by the manufacturer and shall not be thinned.
(4) Hot Thermoplastic Application. In addition to the applications listed above, the following shall apply to hot thermoplastic applications:
Preheaters with vertical mixers having 360 degree rotation shall be used to preheat granular form material.
The thermoplastic material shall be applied to the pavement at a temperature between 400 and 425 degrees Fahrenheit unless a different temperature is recommended by the manufacturer.
The thermoplastic material shall be applied by either spray or extrusion methods in a single uniform layer.
Stencils shall be used when applying thermoplastic material for pavement markings.
The pavement surface to which thermoplastic material is applied shall be completely coated by the material and the voids of the pavement surface shall be filled.
Unless otherwise specified in the special provisions, the thermoplastic material for traffic stripes shall be applied at a minimum thickness of 0.060 inch. Thermoplastic material for pavement markings shall be applied at a thickness of 0.100 inch to 0.150 inch. Glass beads shall be applied immediately to the surface of the molten thermoplastic material at a rate of not less than eight pounds per 100 square feet. The amount of glass beads applied shall be measured by stabbing the glass bead tank with a calibrated rod.
(a) Permanent marking shall consist of raised markers, cold or hot thermoplastic, the specific layout of which is to be approved by the city engineer.
(b) Painting or foil-back tape may be used for temporary marking.
(c) Hot thermoplastic shall be used for all permanent marking installed on all concrete streets.
(d) Cold thermoplastic 3M or equivalent tape rolled into the surface shall be used on new asphalt streets, including overlays.
(e) Raised markers (reflectors and buttons) shall be used in conjunction with permanent marking layouts.
(f) Approved striping material and layout shall be submitted to and approved by the city engineer prior to installation.
(g) Policies for marking patterns are detailed in the TCDH and in the city standard drawings. (Ord. 2875 Appx. § 440, 2003)
18.20.050 Street illumination.
Street lighting shall be designed by Columbia River People’s Utility District (CRPUD), except within the Columbia Boulevard/St. Helens Street corridor master plan area; see SHMC 17.152.030(24). This shall be done at the applicant’s initiative and expense. The lighting plan shall be included with the submittals to the city. Lamp type used should be uniform. (Ord. 3181 § 4 (Att. C), 2015; Ord. 2875 Appx. § 450, 2003)