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


  • National Bridge Inventory (NBI) Statistics
  • 10Number of bridges
  • 16m52ftTotal length
  • $624,000Total costs
  • 228,750Total average daily traffic
  • 12,429Total average daily truck traffic
  • 388,182Total future (year 2030) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Cotati
  • No street view available for this location

New bridges - Historical Statistics

  • 11930-1939
  • 41950-1959
  • 11960-1969
  • 21970-1979
  • 11990-1999
  • 12010-2015

Reconstructed bridges - Historical Statistics

  • 11940-1949
  • 01950-1959
  • 01960-1969
  • 01970-1979
  • 11980-1989
  • 11990-1999
  • 12000-2009

Average Daily Traffic

Bridge Condition - Deck

Bridge Condition - Superstructure

Bridge Condition - Substructure

Bridge Condition - Channel

Bridge Condition - Culverts

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Structure Number: 20 0104,  Location: 04-SON-116-33.37 (Lat: 38.335581,  Lng: -122.742211),  Route carried "on" structure: State highway 116,  Year Built: 1936,  Year Reconstructed: 1954,  Status: Open,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 16,000 (year 2006),  Truck Traffic: 4%,  Average Future Daily Traffic: 29,447 (year 2033),  Features Intersected: GOSSAGE CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 33.370,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: 1,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.3m (14.1ft),  Curb-To-Curb Width: 15.0m (49.2ft),  Out-to-Out Width: 15.0m (49.2ft)

Condition: Channel: Good,  Culverts: Good,  Operating Rating: 40.5 metric tons,  Inventory Rating: 24.3 metric tons,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Meets minimum limits,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 14,  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-101-12.00-COTI (Lat: 38.321289,  Lng: -122.713411),  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: 50.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.1 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 14,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 20 029,  Location: 04-SON-101-12.70-COTI (Lat: 38.331028,  Lng: -122.712603),  Route carried "on" structure: US 101,  Year Built: 2011,  Status: Open,  Structure Length: 4.85m (15.91ft),  Average Daily Traffic: 92,000 (year 2009),  Truck Traffic: 6%,  Average Future Daily Traffic: 162,400 (year 2036),  Design Load: HS 20+Mod,  Features Intersected: SR 116 GRAVENSTEIN HWY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 12.700,  Lanes on structure: 6,  Lanes under structure: 5,  Base Highway Network: Yes (Inventory Route: 1,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 34.2m (112.2ft),  Skew: 31 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 48.5m (159.1ft),  Curb-To-Curb Width: 34.2m (112.2ft),  Out-to-Out Width: 35.1m (115.2ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Operating Rating: 54.1 metric tons,  Inventory Rating: 32.4 metric tons,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 14,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 20C0067,  Location: COMMERCE BLVD (Lat: 38.335783,  Lng: -122.712253),  Route carried "on" structure: City street ,  Year Built: 1956,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 9,800 (year 2004),  Truck Traffic: 2%,  Average Future Daily Traffic: 12,741 (year 2033),  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: Good,  Operating Rating: 40.5 metric tons,  Inventory Rating: 24.3 metric tons,  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: June 13,  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: 38.336864,  Lng: -122.713122),  Route carried "on" structure: City street ,  Year Built: 1956,  Year Reconstructed: 2002,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 2,050 (year 2009),  Truck Traffic: 2%,  Average Future Daily Traffic: 4,030 (year 2030),  Features Intersected: LAGUNA DE SANTA ROSA,  Facility Carried by Structure: REDWOOD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  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: Good,  Operating Rating: 40.5 metric tons,  Inventory Rating: 24.3 metric tons,  Structural Evaluation: Equal to 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 24 months,  Inspection Date: June 13
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Structure Number: 20C0069,  Location: 0.42 MI S ROHNERT PK EXPY (Lat: 38.343075,  Lng: -122.713208),  Route carried "on" structure: City street ,  Year Built: 1956,  Year Reconstructed: 1980,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 3,000 (year 2009),  Truck Traffic: 2%,  Average Future Daily Traffic: 6,050 (year 2030),  Design Load: HS 20,  Features Intersected: COPELAND CREEK,  Facility Carried by Structure: REDWOOD DR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 10.6m (34.8ft),  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.7m (15.4ft),  Curb or Sidewalk Widths: Left: 1.0m (3.3ft),  Right: 0.0m,  Curb-To-Curb Width: 10.6m (34.8ft),  Out-to-Out Width: 12.3m (40.4ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 54.1 metric tons,  Inventory Rating: 32.4 metric tons,  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: June 13,  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: 38.326983,  Lng: -122.703069),  Route carried "on" structure: City street ,  Year Built: 1960,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 3,000 (year 2009),  Truck Traffic: 1%,  Average Future Daily Traffic: 5,291 (year 2036),  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: 2,  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: 25.7m (84.3ft)

Condition: Channel: Good,  Culverts: Satisfactory,  Operating Rating: 40.5 metric tons,  Inventory Rating: 24.3 metric tons,  Structural Evaluation: Equal to present minimum 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 24 months,  Inspection Date: June 14,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 20C0287,  Location: JUST N/O PEPPER RD (Lat: 38.285789,  Lng: -122.747131),  Route carried "on" structure: County highway ,  Year Built: 1970,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 2,800 (year 2010),  Truck Traffic: 4%,  Average Future Daily Traffic: 4,296 (year 2037),  Features Intersected: STEMPLE CREEK,  Facility Carried by Structure: MECHAM RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.5m (41.0ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 4.0m (13.1ft),  Curb-To-Curb Width: 12.5m (41.0ft),  Out-to-Out Width: 13.2m (43.3ft)

Condition: Channel: Good,  Culverts: Fair,  Operating Rating: 40.5 metric tons,  Inventory Rating: 24.3 metric tons,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 15,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 20C0288,  Location: 4 MI W OF SR 101 (Lat: 38.284006,  Lng: -122.752300),  Route carried "on" structure: County highway ,  Year Built: 1970,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 3,500 (year 2001),  Truck Traffic: 4%,  Average Future Daily Traffic: 1,604 (year 2036),  Features Intersected: STEMPLE CREEK,  Facility Carried by Structure: PEPPER RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  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-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 15.1m (49.5ft)

Condition: Channel: Good,  Culverts: Satisfactory,  Operating Rating: 40.5 metric tons,  Inventory Rating: 24.3 metric tons,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 14
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Structure Number: 20C0501,  Location: 0.1 MI N/O SH 116 (Lat: 38.336897,  Lng: -122.738072),  Route carried "on" structure: County highway ,  Year Built: 1994,  Status: Open,  Structure Length: 1.66m (5.45ft),  Average Daily Traffic: 10,600 (year 2009),  Truck Traffic: 5%,  Average Future Daily Traffic: 18,000 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: GOSSAGE CREEK,  Facility Carried by Structure: STONY POINT RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 17.5m (57.4ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 7.9m (25.9ft),  Curb-To-Curb Width: 17.0m (55.8ft),  Out-to-Out Width: 17.2m (56.4ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 54.1 metric tons,  Inventory Rating: 32.4 metric tons,  Structural Evaluation: Meets minimum limits,  Deck Geometry: Superior to present desirable criteria,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.66m (5.45ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 13,  Bridge Improvement Cost: $287,000,  Roadway Improvement Cost: $57,000,  Total Project Cost: $482,000 ( Estimate for 2010),  Deck Structure Type: Concrete Cast-file-Place
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