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


  • National Bridge Inventory (NBI) Statistics
  • 10Number of bridges
  • 157ft / 47.6mTotal length
  • 70,700Total average daily traffic
  • 8,310Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Nabesna
  • No street view available for this location

New bridges in Nabesna, AK - historical statistics
  • New bridges - historical statistics
  • 81970-1979
  • 11990-1999
  • 12010-2019
Average Bridge Daily Traffic in Nabesna, AK
Average Bridge Truck Traffic in Nabesna, AK
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 28.6%Very good
  • 42.9%Good
  • 28.6%Satisfactory
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 42.9%Very good
  • 28.6%Good
  • 28.6%Satisfactory
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 28.6%Very good
  • 57.1%Good
  • 14.3%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 28.6%Excellent
  • 14.3%Very good
  • 28.6%Good
  • 14.3%Satisfactory
  • 14.3%Fair
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Structure Number: 1214,  Location: MILE POINT 1.3 (Lat: 60.776900,  Lng: -148.695100),  Route carried "on" structure: State highway ,  Year Built: 1999,  Status: Open,  Structure Length: 3.44m (11.29ft),  Average Daily Traffic: 590 (year 2020),  Truck Traffic: 12%,  Average Future Daily Traffic: 760 (year 2039),  Design Load: HS 25 or greater,  Features Intersected: WHITTIER CREEK,  Facility Carried by Structure: CAMP ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.060,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 33.5m (109.9ft),  Curb-To-Curb Width: 12.7m (41.7ft),  Out-to-Out Width: 13.7m (44.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: 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: Superior to present desirable 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 2021,  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: 1216,  Location: MILE POINT 0.1 (Lat: 59.412628,  Lng: -135.999450),  Route carried "on" structure: State highway NSP00,  Year Built: 2017,  Status: Open,  Structure Length: 10.97m (35.99ft),  Average Daily Traffic: 110 (year 2020),  Truck Traffic: 21%,  Average Future Daily Traffic: 180 (year 2039),  Design Load: HL 93,  Features Intersected: KLEHINI RIVER,  Facility Carried by Structure: PORCUPINE CROSSING
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.161,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.0m (29.5ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 36.4m (119.4ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 10.2m (33.5ft)

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: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  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: 123,  Location: MILE POINT 24.0 (Lat: 61.450556,  Lng: -149.374722),  Route carried "on" structure: Interstate A16,  Year Built: 1977,  Status: Open,  Structure Length: 3.23m (10.60ft),  Average Daily Traffic: 15,500 (year 2020),  Truck Traffic: 17%,  Average Future Daily Traffic: 18,050 (year 2039),  Design Load: HS 20,  Features Intersected: EKLUTNA RIVER - N.B.,  Facility Carried by Structure: GLENN HIGHWAY
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 38.681,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 31.1m (102.0ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 12.1m (39.7ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Good,  Operating Rating: 75.6 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 desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2021,  Deck Structure Type: Other,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 1241,  Location: MILE POINT 129.0 (Lat: 61.987300,  Lng: -146.947100),  Route carried "on" structure: Interstate A14,  Year Built: 1973,  Status: Open,  Structure Length: 8.69m (28.51ft),  Average Daily Traffic: 820 (year 2020),  Truck Traffic: 25%,  Average Future Daily Traffic: 1,090 (year 2039),  Design Load: HS 20,  Features Intersected: LITTLE NELCHINA RIVER,  Facility Carried by Structure: GLENN HIGHWAY
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 207.560,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 33.5m (109.9ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 13.7m (44.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 61.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.4 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,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1242,  Location: MILE POINT 96.8 (Lat: 65.439575,  Lng: -145.526919),  Route carried "on" structure: State highway 670,  Year Built: 1971,  Status: Open,  Structure Length: 3.55m (11.65ft),  Average Daily Traffic: 100 (year 2020),  Truck Traffic: 13%,  Average Future Daily Traffic: 140 (year 2039),  Design Load: HS 20,  Features Intersected: PTARMIGAN CREEK,  Facility Carried by Structure: STEESE HIGHWAY
Minimum Vertical Clearance: 4.24m (13.91ft),  Kilometerpoint: 155.719,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 9.4m (30.8ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 33.5m (109.9ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.8m (28.9ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Fair,  Operating Rating: 67.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.0 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: August 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete
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Structure Number: 1276,  Location: MILE POINT 29.4 (Lat: 59.416594,  Lng: -139.024183),  Route carried "on" structure: State highway 942,  Year Built: 1976,  Status: Open,  Structure Length: 13.10m (42.98ft),  Average Daily Traffic: 40 (year 2020),  Truck Traffic: 33%,  Average Future Daily Traffic: 50 (year 2039),  Design Load: HS 20,  Features Intersected: DANGEROUS RIVER,  Facility Carried by Structure: IRR:YAKUT/ALSEK RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 47.263,  Lanes on structure: 1,  Owner: State Highway Agency,  Approaching Roadway Width: 4.1m (13.5ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 43.6m (143.0ft),  Curb-To-Curb Width: 4.3m (14.1ft),  Out-to-Out Width: 4.5m (14.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 54.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.6 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,  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: June 2020,  Underwater Inspection Date: June 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 1338,  Location: MILE POINT 105.5 (Lat: 66.441231,  Lng: -150.631456),  Route carried "on" structure: State highway 65,  Year Built: 1972,  Year Reconstructed: 1992,  Status: Open,  Structure Length: 4.63m (15.19ft),  Average Daily Traffic: 140 (year 2020),  Truck Traffic: 61%,  Average Future Daily Traffic: 170 (year 2039),  Design Load: HS 25 or greater,  Features Intersected: KANUTI RIVER,  Facility Carried by Structure: DALTON HIGHWAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 169.723,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.4m (27.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Inventory Rating: 65.5 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 desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 1239,  Location: MILE POINT 117.8 (Lat: 61.097222,  Lng: -149.838611),  Route carried "under" structure: Interstate A31,  Year Built: 1972,  Structure Length: 0. m,  Average Daily Traffic: 24,100 (year 2020),  Truck Traffic: 17%,  Features Intersected: RABBIT CREEK POC,  Facility Carried by Structure: SEWARD HWY-UNDER
Minimum Vertical Clearance: 5.11m (16.77ft),  Kilometerpoint: 189.499,  Lanes under structure: 6,  Material/Design: Steel continuous,  Design/Construction: Orthotropic,  Length of Maximum Span: 51.8m (169.9ft)

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Structure Number: 124,  Location: MILE POINT 0.5 (Lat: 61.180833,  Lng: -149.903889),  Route carried "under" structure: State highway 544,  Year Built: 1974,  Structure Length: 0. m,  Average Daily Traffic: 14,800 (year 2020),  Truck Traffic: 3%,  Features Intersected: WILLOW CREST POC,  Facility Carried by Structure: TUDOR ROAD
Minimum Vertical Clearance: 5.03m (16.50ft),  Kilometerpoint: 0.832,  Lanes under structure: 5,  Material/Design: Steel,  Design/Construction: Orthotropic,  Length of Maximum Span: 34.7m (113.8ft)

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Structure Number: 1275,  Location: MILE POINT 0.8 (Lat: 64.837044,  Lng: -147.731714),  Route carried "under" structure: Interstate A45,  Year Built: 1973,  Structure Length: 0. m,  Average Daily Traffic: 14,500 (year 2020),  Truck Traffic: 5%,  Features Intersected: LATHROP POC,  Facility Carried by Structure: AIRPORT WAY
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 1.230,  Lanes under structure: 5,  Material/Design: Steel continuous,  Design/Construction: Orthotropic,  Length of Maximum Span: 37.5m (123.0ft)

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