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Bridge Statistics for Silt, Colorado (CO)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 11Number of bridges
  • 187ft / 57.3mTotal length
  • $491,000Total costs
  • 93,405Total average daily traffic
  • 12,530Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Silt
  • No street view available for this location

New bridges in Silt, CO - historical statistics
  • New bridges - historical statistics
  • 81970-1979
  • 11980-1989
  • 21990-1999
Average Bridge Daily Traffic in Silt, CO
Average Bridge Truck Traffic in Silt, CO
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 12.5%Good
  • 62.5%Satisfactory
  • 25.0%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 25.0%Very good
  • 25.0%Good
  • 37.5%Satisfactory
  • 12.5%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 62.5%Good
  • 37.5%Satisfactory
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 20.0%Very good
  • 40.0%Good
  • 40.0%Satisfactory
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Structure Number: F-06-S,  Location: 4.5 mil. W. of New Castle (Lat: 39.551706,  Lng: -107.593867),  Route carried "on" structure: County highway ,  Year Built: 1972,  Status: Open,  Structure Length: 6.06m (19.88ft),  Average Daily Traffic: 1,000 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 2,000 (year 2033),  Design Load: HS 20+Mod,  Features Intersected: I 70 ML,  Facility Carried by Structure: COUNTY ROAD 262
Minimum Vertical Clearance: 5.11m (16.77ft),  Kilometerpoint: 0.084,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 29.6m (97.1ft),  Curb-To-Curb Width: 7.6m (24.9ft),  Out-to-Out Width: 8.4m (27.6ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 49.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Superior to present desirable criteria,  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: Bituminous
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Structure Number: F-06-T,  Location: IN SILT (Lat: 39.545997,  Lng: -107.653683),  Route carried "on" structure: Spur State highway 70E,  Year Built: 1972,  Status: Open,  Structure Length: 4.54m (14.90ft),  Average Daily Traffic: 9,800 (year 2020),  Truck Traffic: 5%,  Average Future Daily Traffic: 11,662 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: UP RR,  Facility Carried by Structure: I 70 SILT SPUR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.232,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 20.4m (66.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.3m (30.5ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 48.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of replacement,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.54m (14.90ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Bridge Improvement Cost: $327,000,  Roadway Improvement Cost: $33,000,  Total Project Cost: $491,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: F-06-U,  Location: NEAR SILT (Lat: 39.545097,  Lng: -107.653836),  Route carried "on" structure: Spur State highway 70E,  Year Built: 1972,  Status: Open,  Structure Length: 6.67m (21.88ft),  Average Daily Traffic: 9,800 (year 2020),  Truck Traffic: 5%,  Average Future Daily Traffic: 11,662 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: I 70 ML,  Facility Carried by Structure: I 70 SILT SPUR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.132,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 32.8m (107.6ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.3m (30.5ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 50.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Somewhat better than minimum adequacy,  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: Bituminous
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Structure Number: F-06-Y,  Location: 1 MI W OF SILT (Lat: 39.542636,  Lng: -107.673211),  Route carried "on" structure: Interstate 70A,  Year Built: 1975,  Status: Open,  Structure Length: 13.54m (44.42ft),  Average Daily Traffic: 10,500 (year 2020),  Truck Traffic: 11%,  Average Future Daily Traffic: 13,965 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: COLORADO RIVER,  Facility Carried by Structure: I 70 ML EBND
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 155.228,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 12 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 30.0m (98.4ft),  Curb-To-Curb Width: 12.8m (42.0ft),  Out-to-Out Width: 13.6m (44.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 56.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: October 2020,  Underwater Inspection Date: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay
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Structure Number: F-06-Z,  Location: 1.1 MI W OF SILT SPUR (Lat: 39.542856,  Lng: -107.673606),  Route carried "on" structure: Interstate 70A,  Year Built: 1975,  Status: Open,  Structure Length: 13.54m (44.42ft),  Average Daily Traffic: 10,500 (year 2020),  Truck Traffic: 11%,  Average Future Daily Traffic: 13,965 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: COLORADO RIVER,  Facility Carried by Structure: I 70 ML WBND
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 155.213,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 12 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 30.5m (100.1ft),  Curb-To-Curb Width: 12.8m (42.0ft),  Out-to-Out Width: 13.6m (44.6ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 56.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 34.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: October 2020,  Underwater Inspection Date: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay
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Structure Number: GAR311-10.95-A,  Location: 1.8 Mi SE of I-70 (Lat: 39.540417,  Lng: -107.622944),  Route carried "on" structure: County highway ,  Year Built: 1990,  Status: Open,  Structure Length: 1.27m (4.17ft),  Average Daily Traffic: 1,278 (year 2020),  Truck Traffic: 32%,  Average Future Daily Traffic: 1,623 (year 2040),  Design Load: HS 20,  Features Intersected: Divide Creek,  Facility Carried by Structure: Divide Creek Road
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.052,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.6m (38.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.3m (30.5ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Good,  Operating Rating: 59.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 35.5 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: GAR311-12.54-A,  Location: 0.7 Mi S of I-70 Fr. Rd. (Lat: 39.539056,  Lng: -107.645833),  Route carried "on" structure: County highway ,  Year Built: 1993,  Status: Open,  Structure Length: 3.66m (12.01ft),  Average Daily Traffic: 3,601 (year 2020),  Truck Traffic: 44%,  Average Future Daily Traffic: 4,573 (year 2040),  Design Load: HS 20,  Features Intersected: Colorado River,  Facility Carried by Structure: County Road 311
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.369,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 35.1m (115.2ft),  Curb or Sidewalk Widths: Left: 1.2m (3.9ft),  Right: 0.0m,  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 10.8m (35.4ft)

Condition: Deck: Satisfactory,  Superstructure: Very good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 53.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.7 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 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2021,  Underwater Inspection Date: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: GAR311-12.69,  Location: 0.2 Miles South of I-70 (Lat: 39.542056,  Lng: -107.646083),  Route carried "on" structure: County highway ,  Year Built: 1983,  Status: Open,  Structure Length: 7.98m (26.18ft),  Average Daily Traffic: 3,926 (year 2020),  Truck Traffic: 42%,  Average Future Daily Traffic: 4,986 (year 2040),  Design Load: HS 20,  Features Intersected: Colorado River,  Facility Carried by Structure: County Road 311
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.002,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 38.6m (126.6ft),  Curb or Sidewalk Widths: Left: 0.8m (2.6ft),  Right: 0.0m,  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 10.2m (33.5ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 63.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 16.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: September 2021,  Underwater Inspection Date: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: F-06-S,  Location: 4.5 mil. W. of New Castle (Lat: 39.551706,  Lng: -107.593867),  Route carried "under" structure: Interstate 70A,  Year Built: 1972,  Structure Length: 0. m,  Average Daily Traffic: 25,000 (year 2018),  Truck Traffic: 13%,  Features Intersected: I 70 ML,  Facility Carried by Structure: COUNTY ROAD 262
Minimum Vertical Clearance: 5.39m (17.68ft),  Kilometerpoint: 0.084,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 29.6m (97.1ft)

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Structure Number: F-06-T,  Location: IN SILT (Lat: 39.545997,  Lng: -107.653683),  Route carried "under" structure: Other road ,  Year Built: 1972,  Structure Length: 0. m,  Features Intersected: UP RR,  Facility Carried by Structure: I 70 SILT SPUR
Minimum Vertical Clearance: 6.96m (22.83ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 20.4m (66.9ft)

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Structure Number: F-06-U,  Location: NEAR SILT (Lat: 39.545097,  Lng: -107.653836),  Route carried "under" structure: Interstate 70A,  Year Built: 1972,  Structure Length: 0. m,  Average Daily Traffic: 18,000 (year 2011),  Truck Traffic: 13%,  Features Intersected: I 70 ML,  Facility Carried by Structure: I 70 SILT SPUR
Minimum Vertical Clearance: 5.33m (17.49ft),  Kilometerpoint: 156.760,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.8m (107.6ft)

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