B11_Questions_and_Answers_0003.pdf

This document is a Questions and Answers (Q&A) file for the Yellowstone National Park Bridge Preservation contract (Solicitation Number 140P2025R0051). The document contains six technical questions and answers related to specific bridge preservation details at different sites within Yellowstone National Park. Key questions address tree removal constraints, stream flow data availability, bridge demolition techniques, deck overhang repair locations, bridge load ratings, and expansion joint conditions.

Specific technical details include: tree removal is permitted outside bird nesting windows (March 1 - August 15), with park confirmation required after nesting birds have fledged; the Firehole River at Old Faithful has USGS stream gauge data available; the Firehole Bridge #3 site requires careful hydro demolition with controlled edge removal; Bridge Bay Bridge has multiple potential repair locations with visible concrete cracking; the Firehole Bridge Midway has an inventory rating of 7 tons and is currently closed to vehicular traffic; and both north and south expansion joints have been documented with steel plates installed.