Page 1-70
Legal Relations and Responsibilities to the Public
4. Retaining Walls
Loads above existing and completed retaining walls designed for vehicular loads,
where any part of the load is located within half the retaining wall height, shall not
exceed the following load restrictions:
a. The gross vehicle weight or maximum load on each axle shall not exceed the
legal load limit.
b. Construction equipment and material shall not exceed 250 pounds per
square foot.
If necessary and safe to do so, the Engineer may allow higher loads than those
allowed under these load-limit restrictions. For loads on or over structures designed
for direct bearing of live load, the Contractor shall submit Type 3E Working Drawings
consisting of calculations and other supporting information in accordance with
the requirements of Section 6-01.6. For loads on or over pipes, culverts, buried
structures, and retaining walls the Contractor shall submit Type 2E Working
Drawings. All submittals shall contain the following information: a description of
the loading details; arrangement, movement and position of all vehicles, equipment
and materials on the Structure, culvert or pipe; and statement that the Contractor
assumes all risk for damage.
1-07.8
High-Visibility Apparel
The Contractor shall require all personnel under their control (including service providers,
Subcontractors, and lower tier subcontractors) that are on foot in the work zone and are
exposed to vehicle traffic or construction equipment to wear the high-visibility apparel
described in this section.
The Contractor shall ensure that a competent person as identified in the MUTCD selects
the appropriate high-visibility apparel suitable for the jobsite conditions.
High-visibility garments shall always be the outermost garments.
High-visibility garments shall be labeled as, and in a condition compliant with the ANSI/
ISEA 107 (2004 or later version) and shall be used in accordance with manufacturer
recommendations.
1-07.8(1) Traffic Control Personnel
All personnel performing the Work described in
Section 1-10
(including traffic control
supervisors, flaggers, spotters, and others performing traffic control labor of any kind)
shall comply with the following:
1. During daylight hours with clear visibility, workers shall wear a high-visibility
ANSI/ISEA 107 Class 2 or 3 vest or jacket, and hardhat meeting the high-visibility
headwear requirements of
WAC 296-155-305
; and