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Bridge Statistics for Star, Idaho (ID)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 10Number of bridges
  • 236ft / 72.0mTotal length
  • $1,084,000Total costs
  • 60,640Total average daily traffic
  • 3,447Total average daily truck traffic
  • 90,960Total future (year 2039) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Star
  • No street view available for this location

New bridges in Star, ID - historical statistics
  • New bridges - historical statistics
  • 11950-1959
  • 31960-1969
  • 11970-1979
  • 31980-1989
  • 11990-1999
  • 12010-2019
Average Bridge Daily Traffic in Star, ID
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 66.7%Good
  • 33.3%Satisfactory
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 11.1%Very good
  • 44.4%Good
  • 33.3%Satisfactory
  • 11.1%Fair
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 44.4%Good
  • 33.3%Satisfactory
  • 22.2%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 20.0%Excellent
  • 40.0%Very good
  • 30.0%Good
  • 10.0%Satisfactory
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Structure Number: 12255,  Location: 9.6 E. CALDWELL (Lat: 43.663083,  Lng: -116.496444),  Route carried "on" structure: US 20,  Year Built: 1956,  Status: Open,  Structure Length: 1.31m (4.30ft),  Average Daily Traffic: 17,000 (year 2019),  Truck Traffic: 7%,  Average Future Daily Traffic: 25,500 (year 2039),  Design Load: HS 20,  Features Intersected: PHYLLIS CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 53.297,  Lanes on structure: 2,  Base Highway Network: Yes (Inventory Route: US0,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 15.5m (50.9ft),  Skew: 1 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.5m (41.0ft),  Curb-To-Curb Width: 29.8m (97.8ft),  Out-to-Out Width: 30.5m (100.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 36.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 21.8 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,  Length Of Structure Improvement: 1.98m (6.50ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Bridge Improvement Cost: $515,000,  Roadway Improvement Cost: $52,000,  Total Project Cost: $772,000 ( Estimate for 2021),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 19745,  Location: 1.8 S. STAR (Lat: 43.666481,  Lng: -116.493361),  Route carried "on" structure: County highway 3770,  Year Built: 1967,  Status: Open,  Structure Length: 1.31m (4.30ft),  Average Daily Traffic: 10,000 (year 2019),  Truck Traffic: 5%,  Average Future Daily Traffic: 15,000 (year 2039),  Design Load: HS 20,  Features Intersected: PHYLLIS CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 14.116,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 10.3m (33.8ft),  Out-to-Out Width: 11.2m (36.7ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Good,  Channel: Very good,  Operating Rating: 59.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.8 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 1975,  Location: 0.8 S. STAR (Lat: 43.679861,  Lng: -116.493194),  Route carried "on" structure: County highway 3770,  Year Built: 1982,  Status: Open,  Structure Length: 11.52m (37.80ft),  Average Daily Traffic: 10,000 (year 2019),  Truck Traffic: 5%,  Average Future Daily Traffic: 15,000 (year 2039),  Design Load: HS 20,  Features Intersected: BOISE RIVER(STAR BRIDGE)
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 15.604,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 12.8m (42.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 28.3m (92.8ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 13.9m (45.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Channel: Good,  Operating Rating: 56.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.8 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: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 25795,  Location: 0.3 N. 1.0 E. STAR (Lat: 43.696639,  Lng: -116.473306),  Route carried "on" structure: County highway 3761,  Year Built: 1971,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 1,900 (year 2019),  Truck Traffic: 3%,  Average Future Daily Traffic: 2,850 (year 2039),  Design Load: HS 20,  Features Intersected: MIDDLETON CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 187.751,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.6m (24.9ft),  Curb or Sidewalk Widths: Left: 0.1m (0.3ft),  Right: 0.1m (0.3ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 47.2 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 28.1 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 2592,  Location: 1.0 N. 0.2 E. STAR (Lat: 43.706550,  Lng: -116.490239),  Route carried "on" structure: County highway 3760,  Year Built: 1988,  Status: Open,  Structure Length: 1.19m (3.90ft),  Average Daily Traffic: 3,300 (year 2019),  Average Future Daily Traffic: 4,950 (year 2039),  Design Load: H 20,  Features Intersected: MIDDLETON CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 163.134,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.1m (33.1ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Frame,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 5.8m (19.0ft),  Curb-To-Curb Width: 9.2m (30.2ft),  Out-to-Out Width: 10.3m (33.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Excellent,  Operating Rating: 54.4 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,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 25946,  Location: 1.0 N. STAR (Lat: 43.706569,  Lng: -116.493339),  Route carried "on" structure: County highway 3760,  Year Built: 1994,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 990 (year 2019),  Average Future Daily Traffic: 1,485 (year 2039),  Design Load: HS 25 or greater,  Features Intersected: MIDDLETON CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 162.925,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 10.8m (35.4ft),  Skew: 1 degrees,  Material/Design: Concrete,  Design/Construction: Frame,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb or Sidewalk Widths: Left: 1.7m (5.6ft),  Right: 1.7m (5.6ft),  Curb-To-Curb Width: 10.8m (35.4ft),  Out-to-Out Width: 21.6m (70.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 34.5 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 20.9 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Somewhat better than minimum adequacy,  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: November 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 2598,  Location: 1.1 N. 0.6 W. STAR (Lat: 43.707389,  Lng: -116.503278),  Route carried "on" structure: County highway 3767,  Year Built: 1965,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 990 (year 2019),  Average Future Daily Traffic: 1,485 (year 2039),  Design Load: HS 20,  Features Intersected: MIDDLETON CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 162.071,  Lanes on structure: 2,  Owner: County 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: 7.9m (25.9ft),  Curb or Sidewalk Widths: Left: 0.1m (0.3ft),  Right: 0.1m (0.3ft),  Curb-To-Curb Width: 8.1m (26.6ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 47.2 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 28.1 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Better than present minimum criteria,  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,  Inspection Date: November 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 26315,  Location: 0.6 N. 1.3 E. STAR (Lat: 43.700056,  Lng: -116.468292),  Route carried "on" structure: County highway 3024,  Year Built: 1967,  Status: Posted for load,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 360 (year 2019),  Average Future Daily Traffic: 540 (year 2039),  Design Load: H 10,  Features Intersected: MIDDLETON CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 160.934,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 5.5m (18.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 6.2m (20.3ft),  Out-to-Out Width: 6.6m (21.7ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 5.4 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 3.6 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: High priority of replacement,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 1.37m (4.49ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Bridge Improvement Cost: $208,000,  Roadway Improvement Cost: $21,000,  Total Project Cost: $312,000 ( Estimate for 2019),  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 26365,  Location: 1.0 N. 0.6 E. STAR (Lat: 43.706508,  Lng: -116.481931),  Route carried "on" structure: County highway 3760,  Year Built: 1987,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 1,100 (year 2019),  Average Future Daily Traffic: 1,650 (year 2039),  Design Load: HS 20,  Features Intersected: DRY CREEK CANAL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 163.804,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.8m (28.9ft),  Skew: 6 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 9.5m (31.2ft),  Out-to-Out Width: 12.8m (42.0ft)

Condition: Channel: Very good,  Culverts: Satisfactory,  Inventory Rating: 83.5 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 34015,  Location: 1.3 E. STAR SCL (Lat: 43.680350,  Lng: -116.462642),  Route carried "on" structure: State highway 16,  Year Built: 2014,  Status: Open,  Structure Length: 52.61m (172.60ft),  Average Daily Traffic: 15,000 (year 2019),  Truck Traffic: 8%,  Average Future Daily Traffic: 22,500 (year 2039),  Design Load: HL 93,  Features Intersected: BOISE RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 159.642,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 25.9m (85.0ft),  Skew: 30 degrees,  Material/Design: Prestressed concrete continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 11,  Length of Maximum Span: 46.9m (153.9ft),  Curb-To-Curb Width: 25.4m (83.3ft),  Out-to-Out Width: 26.8m (87.9ft)

Condition: Deck: Good,  Superstructure: Very good,  Substructure: Good,  Channel: Excellent,  Operating Rating: 47.3 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  Inventory Rating: 36.9 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor Rating (LRFR) rating reported by rating factor(RF) method using HL-93 loadings,  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 48 months,  Inspection Date: January 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Deck Protection: Epoxy Coated Reinforcing
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