
1) Amtrak supporters 2) Bridge structures 3) Bridge supporters 4) Bridge supports 5) Certain railroad bridges 6) Crossings for Casey Jones 7) Frameworks for bridges 8) Railroad bridge supports 9) Railroad bridges 10) Railroad crossings 11) Railroad spans 12) Roller coaster structures 13) Some bridges
Found on
https://www.crosswordclues.com/clue/trestles

1) Sawhorses 2) Spans
Found on
https://www.crosswordclues.com/clue/trestles

Trestles is a collection of surfing spots at San Onofre State Beach in San Diego County, California. Trestles consists of, from north to south, Upper Trestles (Uppers), Lower Trestles (Lowers), and Middle Trestles (Middles). North of Upper Trestles is the surf spot called Cottons. South of Middles is the surf spot called The Church. It is named af...
Found on
http://en.wikipedia.org/wiki/Trestles

Portable stands used to support a boat out of the water, for rigging, washing, checking etc.
Found on
https://www.trenthamboatclub.co.uk/glossary-of-rowing-terms/
No exact match found.