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


  • National Bridge Inventory (NBI) Statistics
  • 18Number of bridges
  • 138ft / 42mTotal length
  • $1,626,000Total costs
  • 259,639Total average daily traffic
  • 27,457Total average daily truck traffic
  • 386,804Total future (year 2031) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Larkspur
  • No street view available for this location

New bridges in Larkspur, CO - historical statistics
  • New bridges - historical statistics
  • 11950-1959
  • 111960-1969
  • 11970-1979
  • 11980-1989
  • 11990-1999
  • 22000-2009
  • 12010-2018
Average Bridge Daily Traffic in Larkspur, CO
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 23.1%Very good
  • 23.1%Good
  • 30.8%Satisfactory
  • 7.7%Fair
  • 15.4%Poor
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 23.1%Very good
  • 38.5%Good
  • 7.7%Satisfactory
  • 30.8%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 23.1%Very good
  • 23.1%Good
  • 30.8%Satisfactory
  • 23.1%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 66.7%Very good
  • 22.2%Good
  • 11.1%Satisfactory
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Structure Number: DOU053-07.20A,  Location: 0.7 MI S OF LARKSPUR (Lat: 39.219233,  Lng: -104.886281),  Route carried "on" structure: County highway ,  Year Built: 2008,  Status: Open,  Structure Length: 0.37m (1.21ft),  Average Daily Traffic: 1,353 (year 2017),  Truck Traffic: 5%,  Average Future Daily Traffic: 2,409 (year 2037),  Design Load: HS 25 or greater,  Features Intersected: E. PLUM CREEK,  Facility Carried by Structure: SPRUCE MTN ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 64.0m (210.0ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 17.1m (56.1ft),  Curb-To-Curb Width: 1.1m (3.6ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 66.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.7 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: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2017,  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: DOU056-00.1,  Location: 0.2 MI W OF I-25 (Lat: 39.242322,  Lng: -104.881544),  Route carried "on" structure: County highway ,  Year Built: 1996,  Status: Open,  Structure Length: 0.34m (1.12ft),  Average Daily Traffic: 745 (year 2017),  Truck Traffic: 4%,  Average Future Daily Traffic: 1,326 (year 2037),  Design Load: HS 20,  Features Intersected: EAST PLUM CREEK,  Facility Carried by Structure: CR56/UP LAKE GULCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 79.0m (259.2ft),  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 32.3m (106.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.6m (34.8ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Very good,  Operating Rating: 70.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.9 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: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2017,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: DOU057-00.20A,  Location: ENT COLUMBINE OPEN SPACE (Lat: 39.282831,  Lng: -104.895211),  Route carried "on" structure: County highway _,  Year Built: 2016,  Status: Open,  Structure Length: 4.25m (13.94ft),  Average Daily Traffic: 41 (year 2017),  Truck Traffic: 1%,  Average Future Daily Traffic: 72 (year 2037),  Features Intersected: EAST PLUM CREEK,  Facility Carried by Structure: COLUMBINE ROAD
Minimum Vertical Clearance: 30.45m (99.90ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 85.0m (278.9ft),  Material/Design: Prestressed concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 1.4m (4.6ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 36.3 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Better than 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: January 2017,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: DOU105-04.70A,  Location: 0.75 MILE N OF NOE RD (Lat: 39.189464,  Lng: -104.923725),  Route carried "on" structure: County highway ,  Year Built: 2008,  Status: Open,  Structure Length: 5.49m (18.01ft),  Average Daily Traffic: 1,239 (year 2017),  Truck Traffic: 4%,  Average Future Daily Traffic: 2,205 (year 2037),  Features Intersected: EAST PLUM CREEK,  Facility Carried by Structure: PERRY PARK ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 122.0m (400.3ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 25.6m (84.0ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.1m (43.0ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 83.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 5.0 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2017,  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: DOUIRNHRSE-0.,  Location: 0.1 MI E. OF 1-25 & T (Lat: 39.267817,  Lng: -104.894525),  Route carried "on" structure: County highway ,  Year Built: 1960,  Status: Posted for load,  Structure Length: 2.25m (7.38ft),  Average Daily Traffic: 10 (year 2017),  Average Future Daily Traffic: 10 (year 2037),  Design Load: HS 20,  Features Intersected: E. PLUM CREEK,  Facility Carried by Structure: IRON HORSE ROAD
Minimum Vertical Clearance: 30.45m (99.90ft),  Kilometerpoint: 0.000,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 0.4m (1.3ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 11.2m (36.7ft),  Curb-To-Curb Width: 4.9m (16.1ft),  Out-to-Out Width: 7.5m (24.6ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Very good,  Operating Rating: 9.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 5.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: High priority of corrective action,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2017,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: DOUMRTNEZ-0.,  Location: 0.5 MI S OF I-25 TOMAH (Lat: 39.263611,  Lng: -104.899444),  Route carried "on" structure: County highway ,  Year Built: 1960,  Status: Open,  Structure Length: 0.98m (3.22ft),  Average Daily Traffic: 10 (year 2014),  Average Future Daily Traffic: 10 (year 2034),  Features Intersected: E. PLUM CREEK,  Facility Carried by Structure: MARTINEZ
Minimum Vertical Clearance: 30.45m (99.90ft),  Kilometerpoint: 0.000,  Lanes on structure: 1,  Owner: County Highway Agency,  Approaching Roadway Width: 46.0m (150.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.9m (29.2ft),  Curb-To-Curb Width: 4.8m (15.7ft),  Out-to-Out Width: 6.2m (20.3ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Good,  Operating Rating: 36.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal 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: Febuary 2017,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: G-17-AJ,  Location: 1.9 MI N OF JCT S.H. 18 (Lat: 39.267625,  Lng: -104.896542),  Route carried "on" structure: ServiceCounty highway ,  Year Built: 1965,  Status: Open,  Structure Length: 6.16m (20.21ft),  Average Daily Traffic: 1,019 (year 2013),  Truck Traffic: 13%,  Average Future Daily Traffic: 1,813 (year 2033),  Design Load: H 20,  Features Intersected: I 25 ML,  Facility Carried by Structure: TOMAH 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: 85.0m (278.9ft),  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 18.9m (62.0ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.6m (2.0ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Fair,  Operating Rating: 4.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 61.60m (202.10ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2017,  Bridge Improvement Cost: $842,000,  Roadway Improvement Cost: $84,000,  Total Project Cost: $926,000 ( Estimate for 2017),  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: G-17-AJ,  Location: 1.9 MI N OF JCT S.H. 18 (Lat: 39.267625,  Lng: -104.896542),  Route carried "under" structure: Interstate 25A,  Year Built: 1965,  Structure Length: 0. m,  Average Daily Traffic: 13,231 (year 2017),  Truck Traffic: 10%,  Features Intersected: I 25 ML,  Facility Carried by Structure: TOMAH ROAD
Minimum Vertical Clearance: 5.95m (19.52ft),  Kilometerpoint: 27.963,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Concrete continuous,  Design/Construction: Tee Beam,  Length of Maximum Span: 18.9m (62.0ft)

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Structure Number: H-17-AH,  Location: 0.4 MI N OF JCT SH 18 ML (Lat: 39.247764,  Lng: -104.882869),  Route carried "on" structure: Interstate 25A,  Year Built: 1950,  Year Reconstructed: 1980,  Status: Open,  Structure Length: 3.78m (12.40ft),  Average Daily Traffic: 52,000 (year 2011),  Truck Traffic: 10%,  Average Future Daily Traffic: 84,760 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: EAST PLUM CREEK,  Facility Carried by Structure: I 25 ML
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 277.096,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 305.0m (1,000.7ft),  Skew: 23 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 1.8m (5.9ft),  Curb-To-Curb Width: 31.1m (102.0ft),  Out-to-Out Width: 32.5m (106.6ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 36.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 2.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Superior 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,  Inspection Date: May 2017,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: H-17-AJ,  Location: 6.5 MI. N. OF SH 105 (Lat: 39.185108,  Lng: -104.849881),  Route carried "on" structure: ServiceInterstate 25A,  Year Built: 1964,  Status: Open,  Structure Length: 2.65m (8.69ft),  Average Daily Traffic: 636 (year 2016),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,132 (year 2036),  Design Load: HS 20,  Features Intersected: EAST PLUM CREEK SR,  Facility Carried by Structure: I 25 SERVICE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 269.186,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 76.0m (249.3ft),  Skew: 3 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 11.9m (39.0ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.6m (2.0ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 41.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 24.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 26.50m (86.94ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: December 2016,  Bridge Improvement Cost: $100,000,  Roadway Improvement Cost: $10,000,  Total Project Cost: $151,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: H-17-CG,  Location: 0.5 MI N OF JCT SH 18 ML (Lat: 39.248972,  Lng: -104.883817),  Route carried "on" structure: County highway ,  Year Built: 1964,  Status: Open,  Structure Length: 7.97m (26.15ft),  Average Daily Traffic: 1,644 (year 2013),  Truck Traffic: 13%,  Average Future Daily Traffic: 2,927 (year 2033),  Design Load: HS 20,  Features Intersected: I 25 ML,  Facility Carried by Structure: COUNTY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 1,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 67.0m (219.8ft),  Skew: 4 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 25.4m (83.3ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 45.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 27.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 79.70m (261.48ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2017,  Bridge Improvement Cost: $499,000,  Roadway Improvement Cost: $50,000,  Total Project Cost: $549,000 ( Estimate for 2017),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: H-17-CG,  Location: 0.5 MI N OF JCT SH 18 ML (Lat: 39.248972,  Lng: -104.883817),  Route carried "under" structure: Interstate 25A,  Year Built: 1964,  Structure Length: 0. m,  Average Daily Traffic: 1,711 (year ),  Truck Traffic: 10%,  Features Intersected: I 25 ML,  Facility Carried by Structure: COUNTY ROAD
Minimum Vertical Clearance: 5.06m (16.60ft),  Kilometerpoint: 277.242,  Lanes on structure: 1,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 25.4m (83.3ft)

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Structure Number: H-17-CH,  Location: 8.5 MI N OF EL PASO-DOUGL (Lat: 39.243292,  Lng: -104.878242),  Route carried "on" structure: Interstate 25A,  Year Built: 1964,  Status: Open,  Structure Length: 2.85m (9.35ft),  Average Daily Traffic: 29,500 (year 2011),  Truck Traffic: 11%,  Average Future Daily Traffic: 48,085 (year 2031),  Design Load: HS 20,  Features Intersected: COUNTY ROAD,  Facility Carried by Structure: I 25 ML NBND
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 276.458,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 116.0m (380.6ft),  Skew: 10 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.8m (42.0ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 47.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2017,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: H-17-CH,  Location: 8.5 MI N OF EL PASO-DOUGL (Lat: 39.243292,  Lng: -104.878242),  Route carried "under" structure: County highway ,  Year Built: 1964,  Structure Length: 0. m,  Average Daily Traffic: 4,000 (year 2008),  Truck Traffic: 6%,  Features Intersected: COUNTY ROAD,  Facility Carried by Structure: I 25 ML NBND
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Length of Maximum Span: 9.1m (29.9ft)

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Structure Number: H-17-CI,  Location: 10.0 MI S. CASTLE ROCK BU (Lat: 39.243208,  Lng: -104.878458),  Route carried "on" structure: Interstate 25A,  Year Built: 1964,  Status: Open,  Structure Length: 2.85m (9.35ft),  Average Daily Traffic: 29,500 (year 2011),  Truck Traffic: 11%,  Average Future Daily Traffic: 48,085 (year 2031),  Design Load: HS 20,  Features Intersected: COUNTY ROAD,  Facility Carried by Structure: I 25 ML SBND
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 27.646,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 116.0m (380.6ft),  Skew: 10 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.8m (42.0ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Satisfactory,  Operating Rating: 47.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2017,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: H-17-CI,  Location: 10.0 MI S. CASTLE ROCK BU (Lat: 39.243208,  Lng: -104.878458),  Route carried "under" structure: County highway ,  Year Built: 1964,  Structure Length: 0. m,  Average Daily Traffic: 4,000 (year 2008),  Truck Traffic: 6%,  Features Intersected: COUNTY ROAD,  Facility Carried by Structure: I 25 ML SBND
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Length of Maximum Span: 9.1m (29.9ft)

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Structure Number: H-17-CP,  Location: 3.9 MI N OF EL PASO-DOUGL (Lat: 39.185242,  Lng: -104.850128),  Route carried "on" structure: Interstate 25A,  Year Built: 1978,  Status: Open,  Structure Length: 1.55m (5.09ft),  Average Daily Traffic: 67,000 (year 2011),  Truck Traffic: 12%,  Average Future Daily Traffic: 109,210 (year 2031),  Features Intersected: EAST PLUM CREEK,  Facility Carried by Structure: I 25 ML
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 269.178,  Lanes on structure: 6,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 265.0m (869.4ft),  Skew: 23 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 0.6m (2.0ft)

Condition: Channel: Very good,  Culverts: Good,  Operating Rating: 36.3 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 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: December 2016
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Structure Number: H-17-CQ,  Location: 8.4 MI S OF CASTLE ROCK (Lat: 39.245661,  Lng: -104.880419),  Route carried "on" structure: Interstate 25A,  Year Built: 1980,  Status: Open,  Structure Length: 0.62m (2.03ft),  Average Daily Traffic: 52,000 (year 2011),  Truck Traffic: 10%,  Average Future Daily Traffic: 84,760 (year 2031),  Design Load: HS 20+Mod,  Features Intersected: UP RR,  Facility Carried by Structure: I 25 ML
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 276.777,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 3.6m (11.8ft),  Skew: 34 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 23.8m (78.1ft),  Curb-To-Curb Width: 3.6m (11.8ft),  Out-to-Out Width: 37.3m (122.4ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 52.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2017,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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