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


  • National Bridge Inventory (NBI) Statistics
  • 12Number of bridges
  • 33m108ftTotal length
  • $915,000Total costs
  • 1,213Total average daily traffic
  • 15Total average daily truck traffic
  • 1,738Total future (year 2030) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Hydaburg
  • No street view available for this location

New bridges - Historical Statistics

  • 31970-1979
  • 81980-1989
  • 11990-1999

Average Truck Traffic (%)

Bridge Condition - Deck

Bridge Condition - Superstructure

Bridge Condition - Substructure

Bridge Condition - Channel

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Structure Number: 316,  Location: MILE POINT 0.1 (Lat: 55.205992,  Lng: -132.826081),  Route carried "on" structure: State highway NSPCY,  Year Built: 1970,  Year Reconstructed: 1985,  Status: Open,  Structure Length: 1.52m (4.99ft),  Average Daily Traffic: 20 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 24 (year 2033),  Design Load: HS 20,  Features Intersected: HYDABURG CREEK,  Facility Carried by Structure: IRR:MIIJUU WAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.203,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 14.6m (47.9ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 64.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to 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: July 13,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 1355,  Location: MILE POINT 22.1 (Lat: 55.455531,  Lng: -132.838975),  Route carried "on" structure: State highway 913,  Year Built: 1976,  Status: Open,  Structure Length: 3.81m (12.50ft),  Average Daily Traffic: 153 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 250 (year 2033),  Design Load: HS 20,  Features Intersected: HARRIS RIVER,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 35.567,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 30.8m (101.0ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 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: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1356,  Location: MILE POINT 21.5 (Lat: 55.447850,  Lng: -132.836081),  Route carried "on" structure: State highway 913,  Year Built: 1976,  Status: Open,  Structure Length: 3.05m (10.01ft),  Average Daily Traffic: 153 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 250 (year 2033),  Design Load: HS 20,  Features Intersected: FUBAR CREEK,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 34.652,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 23.2m (76.1ft),  Curb-To-Curb Width: 7.4m (24.3ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Very good,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 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: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1566,  Location: MILE POINT 0.5 (Lat: 55.209697,  Lng: -132.816294),  Route carried "on" structure: State highway 913,  Year Built: 1985,  Status: Open,  Structure Length: 3.05m (10.01ft),  Average Daily Traffic: 119 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 150 (year 2033),  Features Intersected: HYDABURG RIVER,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.874,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 29.9m (98.1ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.8m (28.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Excellent,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to 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: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1567,  Location: MILE POINT 3.6 (Lat: 55.248128,  Lng: -132.825997),  Route carried "on" structure: State highway 913,  Year Built: 1985,  Status: Open,  Structure Length: 2.41m (7.91ft),  Average Daily Traffic: 119 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 150 (year 2033),  Features Intersected: UNNAMED CREEK @ STA 287,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.749,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 23.5m (77.1ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 8.8m (28.9ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Very good,  Channel: Excellent,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1568,  Location: MILE POINT 5.2 (Lat: 55.269036,  Lng: -132.828992),  Route carried "on" structure: State highway 913,  Year Built: 1985,  Status: Open,  Structure Length: 2.41m (7.91ft),  Average Daily Traffic: 119 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 150 (year 2033),  Features Intersected: UNNAMED CREEK @ STA 374,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.406,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 23.5m (77.1ft),  Curb-To-Curb Width: 8.6m (28.2ft),  Out-to-Out Width: 8.9m (29.2ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to 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: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1605,  Location: MILE POINT 9.1 (Lat: 55.311719,  Lng: -132.867564),  Route carried "on" structure: State highway 913,  Year Built: 1982,  Status: Open,  Structure Length: 2.32m (7.61ft),  Average Daily Traffic: 119 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 160 (year 2033),  Design Load: HS 20,  Features Intersected: SATA CREEK,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.714,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 22.3m (73.2ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1606,  Location: MILE POINT 10.6 (Lat: 55.330081,  Lng: -132.859125),  Route carried "on" structure: State highway 913,  Year Built: 1982,  Status: Open,  Structure Length: 2.62m (8.60ft),  Average Daily Traffic: 119 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 160 (year 2033),  Design Load: HS 20,  Features Intersected: NO NAME CREEK @ STA 746,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 17.127,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 25.3m (83.0ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1607,  Location: MILE POINT 12.5 (Lat: 55.342697,  Lng: -132.846536),  Route carried "on" structure: State highway 913,  Year Built: 1982,  Status: Open,  Structure Length: 2.80m (9.19ft),  Average Daily Traffic: 119 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 160 (year 2033),  Design Load: HS 20,  Features Intersected: BEAVER CREEK,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 20.181,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 27.1m (88.9ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Very good,  Channel: Fair,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 173,  Location: MILE POINT 18.3 (Lat: 55.409103,  Lng: -132.831317),  Route carried "on" structure: State highway 913,  Year Built: 1984,  Status: Open,  Structure Length: 2.59m (8.50ft),  Average Daily Traffic: 153 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 250 (year 2033),  Design Load: HS 20,  Features Intersected: WEST TROCADERO CREEK,  Facility Carried by Structure: HYDABURG HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 29.406,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 25.0m (82.0ft),  Curb-To-Curb Width: 8.8m (28.9ft),  Out-to-Out Width: 9.1m (29.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 87.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 13,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 2248,  Location: HYDABURG (Lat: 55.202381,  Lng: -132.825003),  Route carried "on" structure: Other road ,  Year Built: 1994,  Status: Posted for load,  Structure Length: 4.15m (13.62ft),  Average Daily Traffic: 10 (year 2013),  Truck Traffic: 1%,  Average Future Daily Traffic: 14 (year 2032),  Features Intersected: HYDABURG SEAPLANE,  Facility Carried by Structure: SEAPLANE FACILITY
Minimum Vertical Clearance: 30.18m (99.02ft),  Kilometerpoint: 0.161,  Lanes on structure: 1,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Truss - Thru,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 1,  Length of Maximum Span: 30.5m (100.1ft),  Curb-To-Curb Width: 2.9m (9.5ft),  Out-to-Out Width: 3.1m (10.2ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Poor,  Channel: Very good,  Operating Rating: 23.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 11.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: October 13,  Critical Feature Inspection Date: September 14,  Underwater Inspection Date: August 11,  Deck Structure Type: Open Grating
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Structure Number: 1565,  Location: 1.2 MI E OF HYDABURG HWY (Lat: 55.200139,  Lng: -132.788583),  Route carried "on" structure: Federal lands road 453,  Year Built: 1982,  Status: Closed,  Structure Length: 2.41m (7.91ft),  Average Daily Traffic: 10 (year 2010),  Truck Traffic: 60%,  Average Future Daily Traffic: 20 (year 2030),  Design Load: HS 20,  Features Intersected: SALTERY CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.900,  Lanes on structure: 1,  Owner: Indian Tribal Government,  Approaching Roadway Width: 4.6m (15.1ft),  Material/Design: Steel,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 23.6m (77.4ft),  Curb or Sidewalk Widths: Left: 0.3m (1.0ft),  Right: 0.3m (1.0ft),  Curb-To-Curb Width: 4.8m (15.7ft),  Out-to-Out Width: 4.8m (15.7ft)

Condition: Deck: Serious,  Superstructure: Poor,  Substructure: Poor,  Channel: Satisfactory,  Operating Rating: 9.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 7.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Somewhat better than minimum adequacy,  Approach Roadway Alignment: High priority of corrective action,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 3.05m (10.01ft),  Designated Inspection Frequency: Every 24 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: December 10,  Critical Feature Inspection Date: August 82,  Bridge Improvement Cost: $741,000,  Roadway Improvement Cost: $38,000,  Total Project Cost: $915,000 ( Estimate for 2011),  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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