STATE ROUTE 20 over MILL STREET (Route: 20)
Num: 17 0083x
Open: no restriction [A]
Built: 1969, Reconstructed: 1984
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

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

Bridge Dimensions
Length: 32.5 m = 106.6 ft
Main Spans: 1 at 31.1 m = 102.0 ft
Approach Spans: 0
Skew: 9
Width, Roadway: 31.7 m = 104.0 ft (6 Lanes) and Out-To-Out: 32.3 m = 106.0 ft for a 31.1 m = 102.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Grass Valley [30798]: Nevada County [057], California [06]
Owned by State Highway Agency [01], DOT District: 3
03-NEV-020-R12.16-GVY

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 44.1 metric ton = 48.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 34 metric ton = 37.4 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 8200 (2009) and Trucks: 6%
Future ADT: 33303 (In 2042 )

STATE ROUTE 20 over STATE ROUTE 49 (Route: 20)
Num: 17 0049x
Open: no restriction [A]
Built: 1969, Reconstructed: 1984
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 42.5 m = 139.4 ft
Main Spans: 1 at 41.5 m = 136.2 ft
Approach Spans: 0
Skew: 1
Width, Roadway: 23.2 m = 76.1 ft (5 Lanes) and Out-To-Out: 25.8 m = 84.6 ft for a 21.3 m = 69.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Grass Valley [30798]: Nevada County [057], California [06]
Owned by State Highway Agency [01], DOT District: 3
03-NEV-020-R12.24-GVY

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 50.5 metric ton = 55.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 32.4 metric ton = 35.6 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 8200 (2009) and Trucks: 6%
Future ADT: 31222 (In 2042 )

STATE ROUTE 20 over WOLF CREEK (Route: 20)
Num: 17 0092x
Open: no restriction [A]
Built: 1969, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Concrete continuous [2] Culvert [19]
Approach Span(s): Other [00]
Deck: Not applicable [N] with Wearing Surface: Not applicable (applies only to structures with no deck) [N]

Bridge Dimensions
Length: 10.1 m = 33.1 ft
Main Spans: 3 at 3.3 m = 10.8 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 0 m = 0.0 ft (2 Lanes) and Out-To-Out: 0 m = 0.0 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
Grass Valley [30798]: Nevada County [057], California [06]
Owned by State Highway Agency [01], DOT District: 3
03-NEV-020-R12.20-GVY

Condition
Deck: Not Applicable [N]
Superstructure: Not Applicable [N]
Substructure: Not Applicable [N]
Loading
Design:
Operating: 54.1 metric ton = 59.5 tons ()
Inventory: 32.4 metric ton = 35.6 tons ()

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: N/A [N]
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: July 2020 [0720] and Frequency: 48

Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 8200 (2009) and Trucks: 6%
Future ADT: 32863 (In 2038 )

BRIGHTON ST over STATE ROUTE 20 (Route: 0)
Num: 17 0095x
Open: no restriction [A]
Built: 1984, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:

Bridge Dimensions
Length: 47.9 m = 157.2 ft
Main Spans: 1 at 46.6 m = 152.9 ft
Approach Spans: 0
Skew: 28
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 14.6 m = 47.9 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Grass Valley [30798]: Nevada County [057], California [06]
Owned by State Highway Agency [01], DOT District: 3
03-NEV-020-R11.83-GVY

Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
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: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 5500 (2010) and Trucks: 5%
Future ADT: 14570 (In 2042 )