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Posted Bridge Weight Limits

The following pages list bridges with posted weight limits as per Sonoma County Ordinance, and are not to be exceeded.

Do not, under any circumstances, assume these bridges are safe beyond the posted limits.

State Bridge NumberLocationPosted Weight Limits
20C-017Watmaugh Road at Sonoma Creek17 Ton - Single Truck
24 Ton - Semi; Combination
24 Ton - Full Truck & Full Trailer
20C-141Annapolis Road at Clark's Crossing - 15 MPH
20C-155Wohler Road at Russian River21 Ton - Single Truck
32 Ton - Semi; Combination
32 Ton - Full Truck & Full Trailer
20C-205Adobe Road at Lynch Creek22 Ton - Single Truck
33 Ton - Semi; Combination
39 Ton - Full Truck & Full Trailer
20C-213Arnold Drive at Sonoma Creek Steel Truss North State Hospital20 Ton - Single Truck
31 Ton - Semi; Combination
31 Ton - Full Truck & Full Trailer
20C-248Lambert Bridge Road at Dry Creek15 Ton - Single Truck
17 Ton - Semi; Combination
17 Ton - Full Truck & Full Trailer
20C-324O'Donnell Lane at Calabazas Creek (Bypass ½ block North)16 Ton - Single Truck
32 Ton - Semi; Combination
20C-418Fitch Mountain Road at Sidehill Viaduct17 Ton - Single Truck
27 Ton - Semi; Combination
33 Ton - Full Truck & Full Trailer
20C-430Old Cazadero Road at Austin Creek16 Ton - Single Truck
25 Ton - Semi; Combination
31 Ton - Full Truck & Full Trailer
20C-440Freestone Flat Road at Salmon Creek22 Ton - Single Truck
31 Ton - Semi; Combination
38 Ton - Full Truck & Full Trailer

Contact Information

County of Sonoma
Contact Engineering by Phone
Address
2550 Ventura Avenue
Santa Rosa, CA 95403
38.465074, -122.723705
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