Structural Repairs for Old House in Central City

Building Structure

This old house was originally a gold miner’s house and built during the gold rush.  It is a single-story house with a second floor located within roof rafter A-frame construction.  It is primarily constructed with wood framing over a stacked rock foundation.  There is a shallow crawlspace below the main floor framing.

Location: Central City, Colorado  

Year Originally Built: 1867

Proposed Work: Create an upper-level bathroom and a large master bathroom on the main floor.

Issues/Concerns:         

  • Existing framing is failing with wood crushing, joist rotation and support failures in numerous locations.
  • The existing stacked rock foundation does not readily allow for anchor installation and does not provide solid bearing support for new framing and loads.
  • There is wood rot in an exterior load bearing wall.
  • There are cracked roof joists.

Challenges: The original house construction is on a stack rock foundation set into a hillside and on sloping bedrock.  The shallow sloping bedrock provides minimal or no joist clearance.  Some areas of the crawlspace are not accessible.

Services: Investigation, Design and Repair Services
Date: 2016 through 2017
Resolution: Roof framing, Floor framing, wall framing, and foundation repairs developed for construction.