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Bridge Statistics for Nevada City, California (CA)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 14Number of bridges
  • 154ft / 47.1mTotal length
  • $1,057,000Total costs
  • 194,122Total average daily traffic
  • 13,434Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Nevada City
  • No street view available for this location

New bridges in Nevada City, CA - historical statistics
  • New bridges - historical statistics
  • 11910-1919
  • 11920-1929
  • 11930-1939
  • 91960-1969
  • 11970-1979
  • 11990-1999
Average Bridge Daily Traffic in Nevada City, CA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 70.0%Good
  • 20.0%Fair
  • 10.0%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 70.0%Good
  • 30.0%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 50.0%Good
  • 20.0%Fair
  • 30.0%Poor
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 20.0%Excellent
  • 20.0%Very good
  • 20.0%Satisfactory
  • 40.0%Fair
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Structure Number: 17 005,  Location: 03-NEV-020-R12.85-GVY (Lat: 39.215722,  Lng: -121.061878),  Route carried "on" structure: State highway 20,  Year Built: 1970,  Status: Open,  Structure Length: 14.54m (47.70ft),  Average Daily Traffic: 43,000 (year 2009),  Truck Traffic: 7%,  Average Future Daily Traffic: 73,943 (year 2038),  Design Load: HS 20,  Features Intersected: SR 174 (COLFAX),AUBURN
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.850,  Lanes on structure: 4,  Lanes under structure: 5,  Base Highway Network: Yes (,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 21.0m (68.9ft),  Skew: 39 degrees,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 7,  Length of Maximum Span: 28.3m (92.8ft),  Curb-To-Curb Width: 21.0m (68.9ft),  Out-to-Out Width: 22.6m (74.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 64.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up
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Structure Number: 17 0053,  Location: 03-NEV-020-R16.74-NEVC (Lat: 39.258797,  Lng: -121.018561),  Route carried "on" structure: City street ,  Year Built: 1967,  Status: Open,  Structure Length: 3.41m (11.19ft),  Average Daily Traffic: 8,500 (year 2010),  Truck Traffic: 10%,  Average Future Daily Traffic: 26,018 (year 2042),  Design Load: HS 20,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: SACRAMENTO ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 33.0m (108.3ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Fair,  Operating Rating: 46.7 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 30.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 17 0054,  Location: 03-NEV-020-R16.87-NEVC (Lat: 39.260661,  Lng: -121.017989),  Route carried "on" structure: State highway 20,  Year Built: 1967,  Status: Open,  Structure Length: 5.12m (16.80ft),  Average Daily Traffic: 16,800 (year 2009),  Truck Traffic: 6%,  Average Future Daily Traffic: 44,160 (year 2038),  Design Load: HS 20,  Features Intersected: DEER CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.870,  Lanes on structure: 6,  Base Highway Network: Yes (,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 25.0m (82.0ft),  Skew: 29 degrees,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 22.6m (74.1ft),  Curb-To-Curb Width: 25.0m (82.0ft),  Out-to-Out Width: 25.6m (84.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 91.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 55.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 17 0055,  Location: 03-NEV-020-R16.99-NEVC (Lat: 39.262181,  Lng: -121.017139),  Route carried "on" structure: City street ,  Year Built: 1967,  Status: Open,  Structure Length: 2.99m (9.81ft),  Average Daily Traffic: 7,000 (year 2010),  Truck Traffic: 10%,  Average Future Daily Traffic: 18,733 (year 2042),  Design Load: HS 20,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: BROAD ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 28.3m (92.8ft),  Curb or Sidewalk Widths: Left: 2.4m (7.9ft),  Right: 2.4m (7.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 17.7m (58.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Operating Rating: 43.7 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 31.1 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete
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Structure Number: 17 0056,  Location: 03-NEV-020-R17.18-NEVC (Lat: 39.264744,  Lng: -121.016886),  Route carried "on" structure: City street ,  Year Built: 1967,  Status: Open,  Structure Length: 3.29m (10.79ft),  Average Daily Traffic: 7,500 (year 2010),  Truck Traffic: 10%,  Average Future Daily Traffic: 19,254 (year 2042),  Design Load: HS 20,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: WASHINGTON ST
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 5,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 10 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 31.4m (103.0ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 12.2m (40.0ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Good,  Operating Rating: 42.8 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 29.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: High priority of replacement,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 17 0082,  Location: 03-NEV-020-R15.92 (Lat: 39.248264,  Lng: -121.024992),  Route carried "on" structure: County highway ,  Year Built: 1967,  Status: Open,  Structure Length: 4.94m (16.21ft),  Average Daily Traffic: 20,000 (year 2010),  Truck Traffic: 10%,  Average Future Daily Traffic: 31,222 (year 2042),  Design Load: HS 20,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: GOLD FLAT ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 25.6m (84.0ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 11.3m (37.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 37.3 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 28.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: High priority of corrective action,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Integral Concrete
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Structure Number: 17C0001,  Location: 0.1 MI SOUTH OF BROAD ST (Lat: 39.260428,  Lng: -121.019442),  Route carried "on" structure: City street ,  Year Built: 1996,  Status: Open,  Structure Length: 9.14m (29.99ft),  Average Daily Traffic: 3,980 (year 2011),  Truck Traffic: 1%,  Average Future Daily Traffic: 4,578 (year 2041),  Design Load: HS 20,  Features Intersected: DEER CREEK,  Facility Carried by Structure: SOUTH PINE STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Material/Design: Steel,  Design/Construction: Truss - Deck,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 10,  Length of Maximum Span: 45.7m (149.9ft),  Curb or Sidewalk Widths: Left: 1.2m (3.9ft),  Right: 0.0m,  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 9.0m (29.5ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Excellent,  Operating Rating: 26.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 15.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Critical Feature Inspection Date: July 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 17C0002,  Location: NEAR BROAD ST (Lat: 39.262214,  Lng: -121.016147),  Route carried "on" structure: City street ,  Year Built: 1938,  Year Reconstructed: 1941,  Status: Open,  Structure Length: 1.86m (6.10ft),  Average Daily Traffic: 3,300 (year 2007),  Truck Traffic: 1%,  Average Future Daily Traffic: 3,551 (year 2041),  Features Intersected: DEER CREEK,  Facility Carried by Structure: NEVADA STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 8.5m (27.9ft),  Curb or Sidewalk Widths: Left: 1.2m (3.9ft),  Right: 1.2m (3.9ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 44.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.86m (6.10ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $193,000,  Roadway Improvement Cost: $88,000,  Total Project Cost: $745,000 ( Estimate for 2017),  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 17C0057,  Location: 1 MI E OF RECTOR RD (Lat: 39.302819,  Lng: -121.004586),  Route carried "on" structure: County highway ,  Year Built: 1920,  Status: Posted for load,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 80 (year 2012),  Truck Traffic: 5%,  Average Future Daily Traffic: 110 (year 2041),  Features Intersected: ROCK CREEK,  Facility Carried by Structure: ROCK CREEK RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 4.6m (15.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 4.2m (13.8ft),  Out-to-Out Width: 4.8m (15.7ft)

Condition: Deck: Good,  Superstructure: Fair,  Substructure: Poor,  Channel: Fair,  Operating Rating: 27.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 16.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Meets minimum limits,  Length Of Structure Improvement: 0.91m (2.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $108,000,  Roadway Improvement Cost: $21,000,  Total Project Cost: $181,000 ( Estimate for 2017),  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 17C0058,  Location: 1 MI N OF ROCK CREEK RD (Lat: 39.303106,  Lng: -121.021142),  Route carried "on" structure: County highway ,  Year Built: 1915,  Status: Posted for load,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 62 (year 2014),  Truck Traffic: 10%,  Average Future Daily Traffic: 159 (year 2040),  Features Intersected: ROCK CREEK,  Facility Carried by Structure: RECTOR RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 4.3m (14.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 3.5m (11.5ft),  Out-to-Out Width: 3.7m (12.1ft)

Condition: Deck: Good,  Superstructure: Fair,  Substructure: Poor,  Channel: Fair,  Operating Rating: 23.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 14.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 0.91m (2.99ft),  Designated Inspection Frequency: Every 12 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $78,000,  Roadway Improvement Cost: $15,000,  Total Project Cost: $131,000 ( Estimate for 2020),  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 17 0053,  Location: 03-NEV-020-R16.74-NEVC (Lat: 39.258797,  Lng: -121.018561),  Route carried "under" structure: State highway 20,  Year Built: 1967,  Structure Length: 0. m,  Average Daily Traffic: 16,800 (year 2009),  Truck Traffic: 6%,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: SACRAMENTO ST
Minimum Vertical Clearance: 4.47m (14.67ft),  Kilometerpoint: 16.740,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Length of Maximum Span: 33.0m (108.3ft)

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Structure Number: 17 0055,  Location: 03-NEV-020-R16.99-NEVC (Lat: 39.262181,  Lng: -121.017139),  Route carried "under" structure: State highway 20,  Year Built: 1967,  Structure Length: 0. m,  Average Daily Traffic: 16,800 (year 2009),  Truck Traffic: 6%,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: BROAD ST
Minimum Vertical Clearance: 4.88m (16.01ft),  Kilometerpoint: 16.990,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Length of Maximum Span: 28.3m (92.8ft)

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Structure Number: 17 0056,  Location: 03-NEV-020-R17.18-NEVC (Lat: 39.264744,  Lng: -121.016886),  Route carried "under" structure: State highway 20,  Year Built: 1967,  Structure Length: 0. m,  Average Daily Traffic: 16,800 (year 2009),  Truck Traffic: 6%,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: WASHINGTON ST
Minimum Vertical Clearance: 4.55m (14.93ft),  Kilometerpoint: 17.180,  Lanes on structure: 2,  Lanes under structure: 5,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Length of Maximum Span: 31.4m (103.0ft)

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Structure Number: 17 0082,  Location: 03-NEV-020-R15.92 (Lat: 39.248264,  Lng: -121.024992),  Route carried "under" structure: State highway 20,  Year Built: 1967,  Structure Length: 0. m,  Average Daily Traffic: 33,500 (year 2009),  Truck Traffic: 6%,  Features Intersected: STATE ROUTE 20,  Facility Carried by Structure: GOLD FLAT ROAD
Minimum Vertical Clearance: 5.92m (19.42ft),  Kilometerpoint: 15.920,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Length of Maximum Span: 25.6m (84.0ft)

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