What we do


Recognizing and protecting historical sites

Parametrix guides our clients through identification, documentation, monitoring, and preservation of historical sites and properties in compliance with the National Historic Preservation Act. We determine the historic significance of bridges, buildings, landscapes, districts, and traditional cultural properties and develop documentation to protect those properties working with state and tribal historic preservation offices. Our experience includes directing archival research, historic building inventories, and historic bridge evaluations; documenting historic districts and acequias; and developing historic contexts.

Cambray Bridge Replacement Historic Mitigation | Parametrix

Cambray Bridge Replacement Historic Mitigation
Luna County, New Mexico

Client: NMDOT
Partner: Radian Engineering

The historic Cambray Bridge on NM 549 straddles the UPRR tracks and is part of a larger historic district, including the historic Cambray townsite, which represents early railroad, ranching, and transportation activities in the area. The steel and timber bridge requires improvements; however, substantial changes to the structure would result in adverse effects to the surrounding historic district.

Parametrix developed and implemented a tailored mitigation plan to minimize adverse effects to the national register-eligible bridge, including archival and oral-historic investigations, HAER documentation, and public outreach.



  • Cambray Bridge | Parametrix

    Cambray Bridge Replacement Historic Mitigation

  • Abo Canyon | Parametrix

    Abo Canyon Second Track Project

  • Thornton Ranch | Parametrx

    Thornton Ranch Open Space Site

  • South Valley Water System | Parametrix

    South Valley Water System

  • WPA | Parametrix

    NM 18 Lovington WPA Sidewalks Improvements