Those Union County bridges are cool! I thought maybe the dates on them were restoration dates, but a quick Google search told me that's when they were actually built. I didn't think wooden covered bridges were being built anymore!
As for my contribution, I have two CNY bridges:
My first thought was of a local bridge on Turnpike Road over the Owasco Outlet in the town of Throop. It was built in 1997 to replace a narrow bridge (even narrower than the current one!). I remember thinking that it was going to be a steel-deck bridge when I saw it under construction. Based on
Street View, it looks like there is a wooden deck between the pavement and the steel, which is confirmed on
Uglybridges. I was never aware of the wooden deck, just the rails.
Here's a photo from
Dougtone's Flickr (click for the original size):

My second thought was the old bridge on Haiti Road (
map,
Bridgehunter,
Uglybridges) to get to Haiti Island north of Port Byron. It wouldn't normally be considered a "major" road, but it's the only way to access the island. The original truss bridge was damaged by a snowplow in 1990, and a Bailey bridge with a wooden deck was constructed inside the truss. In 2007, part of the truss collapsed and damaged the Bailey bridge, forcing the bridge to close to all traffic except pedestrians and ATVs. A new bridge was built in 2010.
Old bridge:
Credit: Doug Kerr via BridgehunterNew bridge ribbon cutting:
As an aside, when I took Driver's Ed in the summer of 2005, our teacher said we were going on the bridge, and I chuckled and said something like "Oh, boy!". He wanted me to keep it a surprise for the other driver. I already had my turn driving, so it wouldn't be me.