I got to thinking after writing the CA 271 blog today and noting the South Fork Eel River Bridge dates to 1917; what is the oldest bridge still active in the State Highway Inventory? I would imagine that the answer likely is a 1909 First State Highway Bond Act Road (proven wrong already through two edits to this post) but I could be wrong given those generally ended up being major transportation corridors. Thus far the oldest active bridge I've found on a State Highway is the West Union Creek Bridge on CA 84 from 1903 (this was a fairly modern adoption by way of Legislative Route 107).
http://bridgehunter.com/ca/san-mateo/350044/#Map
Conversely a secondary question would be what is the oldest active state highway bridge that was built as part of a state facility? The Lion Canyon Creek Bridge wasn't built by the Division of Highways but was absorbed into State Maintenance by way of Legislative Route 80 being defined in 1933.
Is this a California thread? If not, there's one in Ipswich, MA from 1764.
Quote from: 1 on December 29, 2020, 08:27:24 AM
Is this a California thread? If not, there's one in Ipswich, MA from 1764.
For the moment, I wouldn't mind if a MOD spun it off into a General Topic. Might get really interesting if the Northeastern States are involved.