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Bridge Statistics for San Carlos, California (CA)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 10Number of bridges
  • 66ft / 20.0mTotal length
  • $1,449,000Total costs
  • 655,797Total average daily traffic
  • 36,791Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for San Carlos
  • No street view available for this location

New bridges in San Carlos, CA - historical statistics
  • New bridges - historical statistics
  • 11920-1929
  • 11930-1939
  • 61950-1959
  • 11960-1969
  • 12000-2009
Average Bridge Daily Traffic in San Carlos, CA
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 33.3%Good
  • 33.3%Satisfactory
  • 33.3%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 66.7%Good
  • 33.3%Satisfactory
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 66.7%Good
  • 33.3%Critical
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 16.7%Excellent
  • 16.7%Good
  • 33.3%Satisfactory
  • 16.7%Fair
  • 16.7%Poor
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 75.0%Good
  • 25.0%Fair
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Structure Number: 35 0037,  Location: 04-SM-101-8.40 (Lat: 37.513494,  Lng: -122.256322),  Route carried "on" structure: County highway D003,  Year Built: 1954,  Year Reconstructed: 1987,  Status: Open,  Structure Length: 8.93m (29.30ft),  Average Daily Traffic: 201,000 (year 2000),  Truck Traffic: 7%,  Average Future Daily Traffic: 399,464 (year 2041),  Design Load: HS 20,  Features Intersected: US HIGHWAY 101,  Facility Carried by Structure: HOLLY STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 6,  Lanes under structure: 12,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 28.3m (92.8ft),  Skew: 21 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 21.9m (71.9ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 26.8m (87.9ft),  Out-to-Out Width: 30.7m (100.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 33.4 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: 25.9 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: Equal to 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 24 months,  Other Special Inspection Frequency: Every 48 months,  Inspection Date: August 2021,  Other Special Inspection Date: March 2018,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 35 0051,  Location: 04-SM-001-5.73 (Lat: 37.165981,  Lng: -122.360769),  Route carried "on" structure: State highway 1,  Year Built: 1958,  Status: Open,  Structure Length: 3.17m (10.40ft),  Average Daily Traffic: 4,400 (year 2009),  Average Future Daily Traffic: 6,100 (year 2037),  Design Load: HS 20,  Features Intersected: GAZOS CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.730,  Lanes on structure: 2,  Base Highway Network: Yes (,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 12.8m (42.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 51.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 35 0056,  Location: 04-SM-101-7.66-SCAR (Lat: 37.506050,  Lng: -122.246850),  Route carried "on" structure: US 101,  Year Built: 2001,  Status: Open,  Structure Length: 1.25m (4.10ft),  Average Daily Traffic: 195,000 (year 2009),  Truck Traffic: 5%,  Average Future Daily Traffic: 257,837 (year 2041),  Features Intersected: PULGAS CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 7.660,  Lanes on structure: 10,  Base Highway Network: Yes (Inventory Route: 1,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 38.4m (126.0ft),  Skew: 30 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Excellent,  Culverts: Good,  Operating Rating: 54.1 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: August 2019
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Structure Number: 35C0041,  Location: 0.2 MI N CANYON RD (Lat: 37.215903,  Lng: -122.349700),  Route carried "on" structure: County highway ,  Year Built: 1963,  Status: Open,  Structure Length: 3.57m (11.71ft),  Average Daily Traffic: 193 (year 2014),  Truck Traffic: 9%,  Average Future Daily Traffic: 500 (year 2037),  Design Load: HS 20,  Features Intersected: BUTANO CREEK,  Facility Carried by Structure: CLOVERDALE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.0m (45.9ft),  Curb-To-Curb Width: 10.4m (34.1ft),  Out-to-Out Width: 10.5m (34.4ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Critical,  Channel: Fair,  Operating Rating: 23.3 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: 16.5 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: High priority of replacement,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 3.57m (11.71ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Bridge Improvement Cost: $862,000,  Roadway Improvement Cost: $172,000,  Total Project Cost: $1,449,000 ( Estimate for 2017),  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 35C0049,  Location: NORTH OF 'G' ST (Lat: 37.498322,  Lng: -122.241133),  Route carried "on" structure: City street ,  Year Built: 1930,  Status: Open,  Structure Length: 1.10m (3.61ft),  Average Daily Traffic: 8,612 (year 2018),  Truck Traffic: 15%,  Average Future Daily Traffic: 10,582 (year 2040),  Features Intersected: CORDILLERAS CREEK,  Facility Carried by Structure: INDUSTRIAL BLVD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 18.4m (60.4ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 3.7m (12.1ft),  Curb or Sidewalk Widths: Left: 2.7m (8.9ft),  Right: 2.7m (8.9ft),  Curb-To-Curb Width: 18.4m (60.4ft),  Out-to-Out Width: 25.1m (82.3ft)

Condition: Channel: Poor,  Culverts: Fair,  Operating Rating: 27.2 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 16.2 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 35C0072,  Location: SOUTH HARBOR BLVD (Lat: 37.520317,  Lng: -122.266075),  Route carried "on" structure: County highway ,  Year Built: 1950,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 4,592 (year 2016),  Truck Traffic: 9%,  Average Future Daily Traffic: 10,582 (year 2040),  Features Intersected: BELMONT CREEK,  Facility Carried by Structure: INDUSTRIAL WAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Owner: County Highway Agency,  Approaching Roadway Width: 19.5m (64.0ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.4m (11.2ft),  Curb or Sidewalk Widths: Left: 1.6m (5.2ft),  Right: 1.6m (5.2ft),  Curb-To-Curb Width: 19.5m (64.0ft),  Out-to-Out Width: 23.3m (76.4ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 40.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.3 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 35C0083,  Location: SOUTH COMMERCIAL ST (Lat: 37.501653,  Lng: -122.252511),  Route carried "on" structure: City street ,  Year Built: 1920,  Status: Open,  Structure Length: 1.30m (4.27ft),  Average Daily Traffic: 7,000 (year 2018),  Truck Traffic: 10%,  Average Future Daily Traffic: 16,033 (year 2040),  Features Intersected: PULGAS CREEK,  Facility Carried by Structure: OLD COUNTY RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 11.3m (37.1ft),  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 3.7m (12.1ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.7m (5.6ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.2m (40.0ft)

Condition: Channel: Satisfactory,  Culverts: Good,  Operating Rating: 27.2 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 16.2 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 35 0037,  Location: 04-SM-101-8.40 (Lat: 37.513494,  Lng: -122.256322),  Route carried "under" structure: Ramp US 101,  Year Built: 1954,  Structure Length: 0. m,  Average Daily Traffic: 20,000 (year 2005),  Truck Traffic: 2%,  Features Intersected: US HIGHWAY 101,  Facility Carried by Structure: HOLLY STREET
Minimum Vertical Clearance: 4.62m (15.16ft),  Kilometerpoint: 8.400,  Lanes on structure: 6,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 21.9m (71.9ft)

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Structure Number: 35 0037,  Location: 04-SM-101-8.40 (Lat: 37.513494,  Lng: -122.256322),  Route carried "under" structure: Ramp US 101,  Year Built: 1954,  Structure Length: 0. m,  Average Daily Traffic: 20,000 (year 2005),  Truck Traffic: 2%,  Features Intersected: US HIGHWAY 101,  Facility Carried by Structure: HOLLY STREET
Minimum Vertical Clearance: 4.87m (15.98ft),  Kilometerpoint: 8.400,  Lanes on structure: 6,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 21.9m (71.9ft)

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Structure Number: 35 0037,  Location: 04-SM-101-8.40 (Lat: 37.513494,  Lng: -122.256322),  Route carried "under" structure: US 101,  Year Built: 1954,  Structure Length: 0. m,  Average Daily Traffic: 195,000 (year 2009),  Truck Traffic: 5%,  Features Intersected: US HIGHWAY 101,  Facility Carried by Structure: HOLLY STREET
Minimum Vertical Clearance: 4.72m (15.49ft),  Kilometerpoint: 8.400,  Lanes on structure: 6,  Lanes under structure: 8,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 21.9m (71.9ft)

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