Guardrail.pdf

This is a technical specification document for guardrail installation submitted by the Washington State Department of Transportation (WSDOT) for the Non-Standard Guardrail Replacement project on N Camano Drive and Utsalady Road. The project encompasses clearing and grubbing, removal of existing guardrail and guardrail anchors, installation of crushed surfacing base course, and installation of Beam Guardrail Type 31 systems. The specification details the installation requirements for Beam Guardrail Type 31 with 8-foot and 9-foot long posts, non-flared terminals, and guide posts. The document establishes technical standards and installation procedures necessary for contractors to execute the work, including materials specifications, installation methodology, and quality control requirements for the guardrail system components.

The guardrail specification document defines the performance standards and material requirements that contractors must meet during installation, including specifications for post spacing, terminal configurations, and connection details. The document serves as the technical basis for bid evaluation and contract performance, ensuring that all guardrail installations meet WSDOT safety and structural standards. Project costs are tied to the line items identified in the contract opportunity, which include clearing and grubbing, removal work, base course installation, guardrail installation by type, guide post installation, and temporary traffic control services including traffic control supervisors and flaggers. Additionally, the contractor must prepare and implement a Spill Prevention Control and Countermeasure (SPCC) Plan to address environmental requirements during construction activities.