Charles Otis Hamar Jr. (1887 - 1962) was a builder-contractor that played an important roll in the construction of many of the covered bridges in Lincoln and Polk County, Oregon.
Chitwood Covered Bridge 37-21-03 (Lincoln County, Oregon) Builder, 1926 Covered Howe through truss bridge over Yaquina River on Chitwood Road, just off US 20 Open to traffic
Drift Creek Covered Bridge 37-21-14 (Lincoln County, Oregon) Original Builder, 1914 Covered Howe through truss bridge over Bear Creek on Private Road Open to traffic
Fisher School Covered Bridge 37-21-11 (Lincoln County, Oregon) Builder, 1927 Covered Howe through truss bridge over Five Rivers on Crab Creek Road Open to traffic
Ritner Creek Covered Bridge 37-27-01 (Polk County, Oregon) Builder, 1927 Covered Howe through truss bridge over Ritner Creek off of OR 223 Open to pedestrians