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Wood Preservative Treatment Guide for Historic Covered Bridges

Project Information

Project ID: 
FHWA-PROJ-08-0033
Project Status: 
Completed
Start Date: 
Friday, September 12, 2008
End Date: 
Monday, September 30, 2013
FHWA Program: 
Infrastructure
FHWA Subprogram: 
Structures
FHWA Topics: 
Roads and Bridges--Structures
TRT Terms: 
Wooden Bridges; Wood Preservatives; Infrastructure; Bridges; Research; Covered Bridges
FHWA Discipline: 
Structures
TRB Subject Area: 
Bridges and other structures, History

Contact Information

First Name: 
Sheila
Last Name: 
Duwadi
Telephone: 
(202) 493-3106
Email Address: 
Team: 
Infrastructure Analysis and Construction Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-20

Project Details

Project Description: 

Several studies have already been completed from the previous year’s research effort identifying preservative treatments, fumigants, fire retardant treatments, and remedial treatments: Identification of Preservative Treatments and Fumigants for Treating Historic Covered Bridges.Effect of fire retardant treatments on covered bridges.Remedial treatments for field treating timber bridges. These have been separate studies that need to be reviewed and relevant information extracted to produce a guide for engineers in selecting and treating timber members for these historic structures.

Goals

The objective is to develop a guide identifying chemical wood preservatives for use by engineers and bridge preservationists that maintains historic integrity yet remain effective. 

Deliverables

Deliverable Name: 
Guidance on the selection and use of chemical wood preservatives for historic covered bridges
Deliverable Type: 
Research report or guidelines
Deliverable Description: 
This product will be a practical guide developed from years of field research identifying effective treatments that conform to historic preservation standards.