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Bridge Statistics for Cotati, California (CA) - Condition, Traffic, Stress, Structural Evaluation, Project Costs

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National Bridge Inventory (NBI) Statistics
Number of bridges: 10
Total length: 28 meters (92ft)
Total costs: $142,000
Total average daily traffic: 284,550
Total average daily truck traffic: 18,398
National Bridge Inventory (NBI) Registered Bridges for Cotati
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New bridges - Historical Statistics

  • 1950-1959: 9
  • 1960-1969: 1

Reconstructed bridges - Historical Statistics

  • 1980-1989: 3
  • 1990-1999: 1
  • 2000-2009: 1

Average Daily Traffic

Bridge Condition - Deck

Bridge Condition - Channel

Bridge Condition - Culverts

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Structure Number: 20 0167,  Location: 04-SON-101-12-COTI (Lat: 38.321333,  Lng: -122.713472),  Route carried "on" structure: US 101,  Year Built: 1956,  Year Reconstructed: 2011,  Status: Open,  Structure Length: 3.70m (12.14ft),  Average Daily Traffic: 86,000 (year 2009),  Truck Traffic: 6%,  Average Future Daily Traffic: 144,323 (year 2034),  Design Load: HS 20,  Features Intersected: SIERRA AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.000,  Lanes on structure: 6,  Lanes under structure: 2,  Base Highway Network: Yes (Inventory Route: 1,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 33.0m (108.3ft),  Skew: 31 degrees,  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: 33.0m (108.3ft),  Out-to-Out Width: 34.6m (113.5ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Good,  Operating Rating: 49.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 12,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 20 0169L,  Location: 04-SON-101-12.68-COTI (Lat: 38.331250,  Lng: -122.712917),  Route carried "on" structure: US 101,  Year Built: 1956,  Year Reconstructed: 1994,  Status: Open,  Structure Length: 4.42m (14.50ft),  Average Daily Traffic: 43,000 (year 2009),  Truck Traffic: 6%,  Average Future Daily Traffic: 70,500 (year 2027),  Design Load: HS 20,  Features Intersected: STATE ROUTE 116
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.680,  Lanes on structure: 2,  Lanes under structure: 5,  Base Highway Network: Yes (Inventory Route: 1,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 20.7m (67.9ft),  Curb-To-Curb Width: 11.1m (36.4ft),  Out-to-Out Width: 12.1m (39.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 99.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 71.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  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: April 10,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 20 0169R,  Location: 04-SON-101-12.68-COTI (Lat: 38.331250,  Lng: -122.712639),  Route carried "on" structure: US 101,  Year Built: 1956,  Year Reconstructed: 1994,  Status: Open,  Structure Length: 4.42m (14.50ft),  Average Daily Traffic: 43,000 (year 2009),  Truck Traffic: 6%,  Average Future Daily Traffic: 70,500 (year 2027),  Design Load: HS 20,  Features Intersected: STATE ROUTE 116
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.680,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (Inventory Route: 1,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 11.3m (37.1ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 20.7m (67.9ft),  Curb-To-Curb Width: 11.1m (36.4ft),  Out-to-Out Width: 12.1m (39.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 99.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 71.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  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: April 10,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 20C0067,  Location: COMMERCE BLVD (Lat: 38.335833,  Lng: -122.711944),  Route carried "on" structure: City street E079,  Year Built: 1956,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 9,800 (year 1977),  Truck Traffic: 2%,  Average Future Daily Traffic: 12,741 (year 2028),  Design Load: HS 20,  Features Intersected: LAGUNA DE SANTA ROSA,  Facility Carried by Structure: OLD REDWOOD HWY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 2 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.4m (11.2ft),  Curb or Sidewalk Widths: Left: 1.2m (3.9ft),  Right: 1.2m (3.9ft),  Curb-To-Curb Width: 8.3m (27.2ft),  Out-to-Out Width: 11.6m (38.1ft)

Condition: Channel: Very good,  Culverts: Satisfactory,  Operating Rating: 53.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 0.73m (2.40ft),  Designated Inspection Frequency: Every 48 months,  Inspection Date: July 10,  Bridge Improvement Cost: $85,000,  Roadway Improvement Cost: $17,000,  Total Project Cost: $142,000 ( Estimate for 2010),  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 20C0068,  Location: JUST W/O SR101 (Lat: 38.336944,  Lng: -122.713889),  Route carried "on" structure: City street E072,  Year Built: 1956,  Year Reconstructed: 2002,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 1,000 (year 1979),  Truck Traffic: 2%,  Average Future Daily Traffic: 2,088 (year 2028),  Design Load: HS 20,  Features Intersected: LAGUNA DE SANTA ROSA,  Facility Carried by Structure: REDWOOD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 3,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 17.5m (57.4ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.4m (11.2ft),  Curb or Sidewalk Widths: Left: 2.9m (9.5ft),  Right: 0.6m (2.0ft),  Curb-To-Curb Width: 17.5m (57.4ft),  Out-to-Out Width: 21.0m (68.9ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 53.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: June 2008,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 20C0069,  Location: 0.42 MI S ROHRT PK EXPRES (Lat: 38.342778,  Lng: -122.713889),  Route carried "on" structure: City street E072,  Year Built: 1956,  Year Reconstructed: 1980,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 1,000 (year 1979),  Truck Traffic: 2%,  Average Future Daily Traffic: 2,074 (year 2026),  Design Load: HS 20,  Features Intersected: COPELAND CREEK,  Facility Carried by Structure: REDWOOD ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.9m (16.1ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.7m (2.3ft),  Curb-To-Curb Width: 13.1m (43.0ft),  Out-to-Out Width: 14.0m (45.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 63.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: June 2008,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 20C0204,  Location: 0.1 MI NE OLD REDWOOD HWY (Lat: 38.326944,  Lng: -122.703056),  Route carried "on" structure: City street E361,  Year Built: 1960,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 13,000 (year 1978),  Truck Traffic: 1%,  Average Future Daily Traffic: 5,291 (year 2027),  Features Intersected: FLOOD CONTROL DITCH,  Facility Carried by Structure: E COTATI AVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 3,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.4m (4.6ft),  Curb-To-Curb Width: 21.9m (71.9ft),  Out-to-Out Width: 25.8m (84.6ft)

Condition: Channel: Good,  Culverts: Very good,  Operating Rating: 53.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: June 2008,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 20 0167,  Location: 04-SON-101-12-COTI (Lat: 38.321333,  Lng: -122.713472),  Route carried "under" structure: City street 101,  Year Built: 1956,  Structure Length: 3.70m (12.14ft),  Average Daily Traffic: 33,500 (year 2007),  Truck Traffic: 9%,  Features Intersected: SIERRA AVE
Minimum Vertical Clearance: 5.82m (19.09ft),  Kilometerpoint: 0.120,  Lanes on structure: 6,  Lanes under structure: 2,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Length of Maximum Span: 14.0m (45.9ft)

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Structure Number: 20 0169L,  Location: 04-SON-101-12.68-COTI (Lat: 38.331250,  Lng: -122.712917),  Route carried "under" structure: State highway 116,  Year Built: 1956,  Structure Length: 4.42m (14.50ft),  Average Daily Traffic: 22,500 (year 2009),  Truck Traffic: 11%,  Features Intersected: STATE ROUTE 116,  Facility Carried by Structure: U.S. ROUTE 101 SB
Minimum Vertical Clearance: 0.45m (1.48ft),  Kilometerpoint: 3.503,  Lanes on structure: 2,  Lanes under structure: 5,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Length of Maximum Span: 20.7m (67.9ft)

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Structure Number: 20 0169R,  Location: 04-SON-101-12.68-COTI (Lat: 38.331250,  Lng: -122.712639),  Route carried "under" structure: State highway 116,  Year Built: 1956,  Structure Length: 4.42m (14.50ft),  Average Daily Traffic: 31,750 (year 2009),  Truck Traffic: 7%,  Features Intersected: STATE ROUTE 116,  Facility Carried by Structure: U.S. ROUTE 101 NB
Minimum Vertical Clearance: 0.45m (1.48ft),  Kilometerpoint: 3.504,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Length of Maximum Span: 20.7m (67.9ft)

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