We visited this in August 2020; this Bridgeport is in Nevada County. It is not on any major highway; it is a few miles from California SR 20 and SR 49. (This is not the Bridgeport on US 395).
We arrived around the time the lightning-caused wildfires were starting to grow in this general area, and we had to return via a different route than planned, due to SR 49 being closed for firefighting and evacuations.
(https://live.staticflickr.com/65535/50647290102_6d3f74a055_z.jpg)
(https://live.staticflickr.com/65535/50646461238_4e88544764_z.jpg)
(https://live.staticflickr.com/65535/50647301207_e6a395b5fb_z.jpg)
Some factoids on the Bridgeport Covered Bridge:
http://bridgehunter.com/ca/nevada/bridgeport/
I was about to say, I don't remember a wooden bridge in (Mono County) Bridgeport.