Resolution_LAG Agmt KPFF_NThorpHwyBridge

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Task 2.20 — Cultural Resources Assessment/Section 106 Because the project will receive federal funding, the project will be required to comply with the National Historic Preservation Act (NHPA), commonly referred to as Section 106. ESA will assist the County with initiating Section 106 consultation with WSDOT to define the Area of Potential Effects (APE) and prepare a cultural resources assessment (CRA) for the defined APE, The CRA will include an archival literature review of the study area and present the findings and recommendations of the field survey. The report will meet the current DAHP standards for a cultural resources assessment. The existing North Thorp Highway -Yakima River Bridge (No. 97341) is over 50 years in age and under Section 106 requires documentation on a historic property inventory form and evaluation for its potential National Register of Historic Places (NRHP) eligibility. ESA will prepare and submit this form as part of the CRA. As currently proposed, the only ground disturbance will be removal and replacement of pavement at the bridge joints at the approaches. Because of this, ESA does not propose subsurface archaeological survey. Assumptions • WSDOT and DAHP will not require a subsurface archaeological survey. • With input from the County, KPFF will provide figure of maximum project limits, current project description, including potential staging areas, access routes, maximum depths of ground disturbance, planned start date of construction, and construction drawings. • The project area conditions and boundaries will be consistent with those at the time of this scope. Should conditions or boundaries change, an amendment may be necessary. • County will provide relevant geotechnical data, if available. • ESA will create a project in DAHP's Washington Information System for Architectural and Archaeological Resources Data (WISAARD) system. • ESA assumes the study area will be a standard 1 -mile radius. ESA assumes fieldwork will require one (1) day for one person. ESA assumes one (1) reconnaissance -level historic property inventory form will be needed. This would be for the North Thorp Highway -Yakima River Bridge (built 1937). • ESA assumes no archaeological sites, isolates, or human remains will be identified. If encountered, an amendment may be necessary. • Field schedule may be affected by field conditions such as snow, flooding, or forest fires. • Should WSDOT determine that the project will result in Adverse Effects, additional work and an amendment may be necessary. Any consultation regarding mitigation of Adverse Effects would be scope separately. Deliverables • One (1) Draft APE consultation initiation letter for KPFF and County review in Word format with graphics depicting APE boundaries. • GIS shapefiles of APE boundaries for DAHP's WISAARD system. • One (1) Draft CRA for KPFF and County review in Word format. • One (1) Revised Draft CRA for WSDOT review in Word format.