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Bridge Statistics for Cantwell, Alaska (AK) - Condition, Traffic, Stress, Structural Evaluation, Project Costs

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National Bridge Inventory (NBI) Statistics
Number of bridges: 11
Total length: 63 meters (207ft)
Total average daily traffic: 13,296
Total average daily truck traffic: 3,101
Total future (year 2028) average daily traffic: 14,270
National Bridge Inventory (NBI) Registered Bridges for Cantwell

New bridges - Historical Statistics

  • 1960-1969: 4
  • 1970-1979: 5
  • 1980-1989: 1
  • 1990-1999: 0
  • 2000-2009: 1

Average Truck Traffic (%)

Bridge Condition - Deck

Bridge Condition - Superstructure

Bridge Condition - Substructure

Bridge Condition - Channel

Bridge Condition - Culverts

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Structure Number: 258,  Location: MILE POINT 139.7 (Lat: 63.015000,  Lng: -149.588333),  Route carried "on" structure: Interstate A43,  Year Built: 1971,  Status: Open,  Structure Length: 17.01m (55.81ft),  Average Daily Traffic: 1,195 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Design Load: HS 20,  Features Intersected: HURRICANE GULCH,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.41m (17.75ft),  Kilometerpoint: 224.777,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 2,  Length of Maximum Span: 124.1m (407.2ft),  Curb-To-Curb Width: 9.6m (31.5ft),  Out-to-Out Width: 10.5m (34.4ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Channel: Very good,  Operating Rating: 62.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.8 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,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Other Special Inspection Frequency: Every 24 months,  Inspection Date: June 2006,  Other Special Inspection Date: July 2002,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 259,  Location: MILE POINT 143.8 (Lat: 63.063333,  Lng: -149.541667),  Route carried "on" structure: Interstate A43,  Year Built: 1971,  Year Reconstructed: 2006,  Status: Open,  Structure Length: 3.69m (12.11ft),  Average Daily Traffic: 1,195 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Design Load: HS 20,  Features Intersected: HONOLULU CREEK,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.41m (17.75ft),  Kilometerpoint: 231.374,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 18.3m (60.0ft),  Curb-To-Curb Width: 12.7m (41.7ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Poor,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 63.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 29.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Better than 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: June 2006,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 26,  Location: MILE POINT 150.8 (Lat: 63.145000,  Lng: -149.420000),  Route carried "on" structure: Interstate A43,  Year Built: 1967,  Status: Open,  Structure Length: 4.36m (14.30ft),  Average Daily Traffic: 1,390 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Design Load: HS 20,  Features Intersected: EAST FORK CHULITNA RIVER,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.41m (17.75ft),  Kilometerpoint: 242.637,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.3m (69.9ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Excellent,  Operating Rating: 67.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.6 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,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2006,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 261,  Location: MILE POINT 160.3 (Lat: 63.251667,  Lng: -149.250000),  Route carried "on" structure: Interstate A43,  Year Built: 1966,  Status: Open,  Structure Length: 4.36m (14.30ft),  Average Daily Traffic: 1,390 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Design Load: HS 20,  Features Intersected: MIDDLE FORK CHULITNA RIV,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.41m (17.75ft),  Kilometerpoint: 257.923,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.3m (69.9ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.1m (33.1ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 67.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2006,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 281,  Location: MILE POINT 0.7 (Lat: 63.395000,  Lng: -148.920000),  Route carried "on" structure: State highway NSP00,  Year Built: 1977,  Status: Open,  Structure Length: 5.49m (18.01ft),  Average Daily Traffic: 357 (year 2006),  Truck Traffic: 5%,  Average Future Daily Traffic: 350 (year 2028),  Design Load: HS 20,  Features Intersected: JACK RIVER,  Facility Carried by Structure: CANTWELL ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.126,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Wood or Timber,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 2,  Length of Maximum Span: 20.7m (67.9ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 7.6m (24.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 63.0 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2006,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 293,  Location: MILE POINT 172.7 (Lat: 63.375000,  Lng: -148.948333),  Route carried "on" structure: Interstate A43,  Year Built: 1965,  Status: Open,  Structure Length: 4.02m (13.19ft),  Average Daily Traffic: 1,390 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Design Load: HS 20,  Features Intersected: PASS CREEK,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.41m (17.75ft),  Kilometerpoint: 277.874,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 19.8m (65.0ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 63.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.8 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 minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2006,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 302,  Location: MILE POINT 174.1 (Lat: 63.385000,  Lng: -148.906667),  Route carried "on" structure: Interstate A43,  Year Built: 1965,  Status: Open,  Structure Length: 6.00m (19.69ft),  Average Daily Traffic: 1,390 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Design Load: HS 20,  Features Intersected: JACK RIVER,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.41m (17.75ft),  Kilometerpoint: 280.170,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 19.8m (65.0ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 63.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.8 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 minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2006,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1243,  Location: MILE POINT 180.2 (Lat: 63.466667,  Lng: -148.805000),  Route carried "on" structure: Interstate A43,  Year Built: 1974,  Year Reconstructed: 2006,  Status: Open,  Structure Length: 11.86m (38.91ft),  Average Daily Traffic: 2,312 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 2,500 (year 2028),  Design Load: HS 20,  Features Intersected: NENANA RIVER AT WINDY,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.41m (17.75ft),  Kilometerpoint: 290.017,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 4 degrees,  Material/Design: Steel continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 58.2m (190.9ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.7m (35.1ft)

Condition: Deck: Poor,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 67.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: June 2006,  Critical Feature Inspection Date: May 2006,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 2084,  Location: MILE POINT 168.8 (Lat: 63.340000,  Lng: -149.090000),  Route carried "on" structure: Interstate A43,  Year Built: 2006,  Status: Open,  Structure Length: 4.45m (14.60ft),  Average Daily Traffic: 1,390 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Features Intersected: SUMMIT OVERHEAD,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.33m (17.49ft),  Kilometerpoint: 271.657,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 6 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 41.8m (137.1ft),  Curb-To-Curb Width: 12.3m (40.4ft),  Out-to-Out Width: 13.1m (43.0ft)

Condition: Deck: Excellent,  Superstructure: Excellent,  Substructure: Excellent,  Structural Evaluation: High priority of corrective action,  Deck Geometry: Better than present minimum criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: November 2006,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 4009,  Location: MILE POINT 129.0 (Lat: 63.381667,  Lng: -148.738333),  Route carried "on" structure: State highway 750,  Year Built: 1985,  Status: Open,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 92 (year 2006),  Truck Traffic: 8%,  Average Future Daily Traffic: 220 (year 2028),  Features Intersected: FISH CREEK,  Facility Carried by Structure: DENALI HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 207.668,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Number Of Approach Spans: 1,  Length of Maximum Span: 4.3m (14.1ft)

Condition: Channel: Very good,  Culverts: Good,  Operating Rating: 63.0 metric tons,  Inventory Rating: 32.4 metric tons,  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 24 months,  Inspection Date: July 2007
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Structure Number: 406,  Location: MILE POINT 148.3 (Lat: 63.133889,  Lng: -149.448333),  Route carried "on" structure: Interstate A43,  Year Built: 1971,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 1,195 (year 2006),  Truck Traffic: 24%,  Average Future Daily Traffic: 1,400 (year 2028),  Features Intersected: HARDAGE CREEK,  Facility Carried by Structure: PARKS HIGHWAY
Minimum Vertical Clearance: 5.33m (17.49ft),  Kilometerpoint: 238.585,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 63.5 metric tons,  Inventory Rating: 32.7 metric tons,  Structural Evaluation: 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,  Inspection Date: June 2006

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