27.01.CN.03 Inventory Evaluation Matrix_Final.xlsx

This is an Inventory Evaluation Matrix spreadsheet for the Hillsboro/Beaverton (OR8/US26) ADA Ramps project administered by the Oregon Department of Transportation (ODOT). The document provides a comprehensive assessment of ADA compliance issues across multiple curb ramps located along OR8 (Tualatin Valley Highway) and OR10 (Beaverton-Hillsdale Highway) in Washington County, Oregon. The project evaluates over 150 individual ramp locations, documenting their current condition, compliance deficiencies, and required remediation approaches. Each ramp entry includes geospatial data (latitude/longitude coordinates), identification of compliance issues such as clear width restrictions, detectable warning surfaces, slope problems, and landing configuration defects. The matrix identifies proposed remediation strategies categorized as new ramp construction (4(a)), existing ramp reconstruction (4(b)), crosswalk closures (4(d)), or determination that no ramp is needed (4(g)), with construction status listed as pending for all entries.

The evaluation matrix documents numerous infrastructure and environmental constraints affecting ramp design and construction, including utility poles and guy wires, traffic signal infrastructure, hydrants, meter boxes, valve boxes, catch basins, retaining walls, landscaping features, parking lot impacts, private business property concerns, and railroad conflicts. Many ramp locations present potential design exception requirements due to topographic constraints, right-of-way limitations, or conflicting infrastructure such as signal poles and traffic cabinets. The document identifies special considerations including proximity to parks and recreational paths (Section 4(f) considerations), historic properties, hazardous materials concerns, and flood plain locations. Several entries note coordination requirements with transit agencies (TriMET) for bus stop impacts and with utility providers for relocations. The spreadsheet serves as a baseline inventory assessment to support the subsequent design and construction phases of the ADA remediation project along these corridors.