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- Covered Bridges in Maine, 1956 - In the days before weatherproofed lumber, siding and a roof protected a wooden bridge's truss system and kept its structural timbers dry. Despite this purely practical design, covered bridges had nostalgic appeal. Decades after their utility faded, tourists sought out surviving examples. Some states featured covered bridges in marketing campaigns, erected signage, and developed tours to facilitate sightseeing.

- 1956
- Collections - Artifact
Covered Bridges in Maine, 1956
In the days before weatherproofed lumber, siding and a roof protected a wooden bridge's truss system and kept its structural timbers dry. Despite this purely practical design, covered bridges had nostalgic appeal. Decades after their utility faded, tourists sought out surviving examples. Some states featured covered bridges in marketing campaigns, erected signage, and developed tours to facilitate sightseeing.