HEALDSBURG AVE over RUSSIAN RIVER (Route: 0)
Num: 20C0065x
Open: no restriction [A]
Built: 1921, Reconstructed: 2016
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Concrete [1] Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 133.1 m = 436.7 ft
Main Spans: 2 at 60.4 m = 198.2 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 6.4 m = 21.0 ft (2 Lanes) and Out-To-Out: 11.2 m = 36.7 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 4.54 m = 14.9 ft and Navigational Clearance: 0 = N/A

Location
Healdsburg [33056]: Sonoma County [097], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
35.2 MI N MARIN CO LINE

Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 54.1 metric ton = 59.5 tons (Unknown [A])
Inventory: 32.4 metric ton = 35.6 tons (Unknown [A])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: May 1999 [599] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 8204 (2015) and Trucks: 5%
Future ADT: 8495 (In 2037 )

HEALDSBURG AVE over RUSSIAN RIVER OVERFLOW (Route: 0)
Num: 20C0066x
Open: no restriction [A]
Built: 1987, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 42.1 m = 138.1 ft
Main Spans: 5 at 9.1 m = 29.9 ft
Approach Spans: 0
Skew: 22
Width, Roadway: 14.6 m = 47.9 ft (3 Lanes) and Out-To-Out: 18.3 m = 60.0 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Healdsburg [33056]: Sonoma County [097], California [06]
Owned by City or Municipal Highway Agency [04], DOT District: 4
INT OF BAILACHE AVE

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 35 metric ton = 38.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 26.9 metric ton = 29.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: May 1999 [599] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 8204 (2010) and Trucks: 3%
Future ADT: 8666 (In 2041 )

US HIGHWAY 101 NB over RUSSIAN RIVER (Route: 101)
Num: 20 0273Rx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 235.6 m = 773.0 ft
Main Spans: 4 at 66.5 m = 218.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11.9 m = 39.0 ft (2 Lanes) and Out-To-Out: 12.9 m = 42.3 ft for a 11.9 m = 39.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Healdsburg [33056]: Sonoma County [097], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-SON-101-33.78-HLBG

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 54.1 metric ton = 59.5 tons (Unknown [A])
Inventory: 32.4 metric ton = 35.6 tons (Unknown [A])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 22750 (2015) and Trucks: 13%
Future ADT: 43153 (In 2039 )

US HIGHWAY 101 SB over RUSSIAN RIVER (Route: 101)
Num: 20 0273Lx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 235.6 m = 773.0 ft
Main Spans: 4 at 66.5 m = 218.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11.9 m = 39.0 ft (2 Lanes) and Out-To-Out: 12.9 m = 42.3 ft for a 11.9 m = 39.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Healdsburg [33056]: Sonoma County [097], California [06]
Owned by State Highway Agency [01], DOT District: 4
04-SON-101-33.78-HLBG

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 54.1 metric ton = 59.5 tons (Unknown [A])
Inventory: 32.4 metric ton = 35.6 tons (Unknown [A])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 22750 (2019) and Trucks: 13%
Future ADT: 43153 (In 2036 )