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Bridge Statistics for Montana City, Montana (MT)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 10Number of bridges
  • 125ft / 37.5mTotal length
  • 48,665Total average daily traffic
  • 4,520Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Montana City
  • No street view available for this location

New bridges in Montana City, MT - historical statistics
  • New bridges - historical statistics
  • 11950-1959
  • 81960-1969
  • 11970-1979
Average Bridge Daily Traffic in Montana City, MT
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 42.9%Good
  • 42.9%Satisfactory
  • 14.3%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 28.6%Good
  • 71.4%Satisfactory
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 14.3%Good
  • 57.1%Satisfactory
  • 28.6%Fair
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 50.0%Very good
  • 50.0%Satisfactory
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Structure Number: 11202000000001,  Location: MCCLELLAN (Lat: 46.464169,  Lng: -111.855378),  Route carried "on" structure: Federal lands road 294,  Year Built: 1959,  Year Reconstructed: 1995,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 40 (year 2003),  Average Future Daily Traffic: 60 (year 2042),  Design Load: HS 20,  Features Intersected: MCCLELLAN CREEK,  Facility Carried by Structure: MCCLELLEAN CK ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.920,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.3m (14.1ft),  Skew: 3 degrees,  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 4.3m (14.1ft),  Out-to-Out Width: 4.6m (15.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 26.6 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: 20.4 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: 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 minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: July 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Other
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Structure Number: I00015185+05791,  Location: 1.9M S MONTANA CITY (Lat: 46.511433,  Lng: -111.947842),  Route carried "on" structure: Interstate 15,  Year Built: 1968,  Status: Open,  Structure Length: 4.11m (13.48ft),  Average Daily Traffic: 7,014 (year 2020),  Truck Traffic: 14%,  Average Future Daily Traffic: 7,750 (year 2040),  Design Load: HS 20,  Features Intersected: SEP S HWY 282
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 298.008,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 15.5m (50.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.5m (41.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 54.4 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor (LRFR),  Inventory Rating: 34.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor (LRFR),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: March 2018,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Membrane: Epoxy
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Structure Number: I00015187+00791,  Location: 0.6M S MONTANA CITY (Lat: 46.531989,  Lng: -111.940875),  Route carried "on" structure: Interstate 15,  Year Built: 1969,  Status: Open,  Structure Length: 7.25m (23.79ft),  Average Daily Traffic: 7,014 (year 2020),  Truck Traffic: 14%,  Average Future Daily Traffic: 7,750 (year 2040),  Design Load: HS 20,  Features Intersected: ABANDONED RR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 300.440,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 20.1m (65.9ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.6m (41.3ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 51.7 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor (LRFR),  Inventory Rating: 39.9 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor (LRFR),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: I00015187+00792,  Location: 0.6M S MONTANA CITY (Lat: 46.531786,  Lng: -111.941094),  Route carried "on" structure: Interstate 15,  Year Built: 1969,  Status: Open,  Structure Length: 7.04m (23.10ft),  Average Daily Traffic: 7,014 (year 2020),  Truck Traffic: 14%,  Average Future Daily Traffic: 7,750 (year 2040),  Design Load: HS 20,  Features Intersected: ABANDONED RR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 300.165,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 19.8m (65.0ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.6m (41.3ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 51.7 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor (LRFR),  Inventory Rating: 24.5 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor (LRFR),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: L22202000+05001,  Location: MONTANA CITY (Lat: 46.534331,  Lng: -111.935842),  Route carried "on" structure: County highway 22202,  Year Built: 1975,  Status: Open,  Structure Length: 0.70m (2.30ft),  Average Daily Traffic: 100 (year 2022),  Truck Traffic: 3%,  Average Future Daily Traffic: 100 (year 2037),  Features Intersected: MCCLELLAN CREEK 021,  Facility Carried by Structure: MCCLELLAN CREEK RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.793,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.9m (22.6ft),  Material/Design: Concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 8.7m (28.5ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 32.7 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  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: April 2020,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: L22926001+05001,  Location: 1M N MONTANA CITY (Lat: 46.563567,  Lng: -111.958172),  Route carried "on" structure: ServiceCounty highway 22926,  Year Built: 1968,  Status: Open,  Structure Length: 8.67m (28.44ft),  Average Daily Traffic: 1,596 (year 2020),  Truck Traffic: 3%,  Average Future Daily Traffic: 1,676 (year 2040),  Design Load: HS 20,  Features Intersected: I-15,  Facility Carried by Structure: S HILLS RD-HWY 282
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.749,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 1 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 23.2m (76.1ft),  Curb or Sidewalk Widths: Left: 0.1m (0.3ft),  Right: 0.1m (0.3ft),  Curb-To-Curb Width: 9.6m (31.5ft),  Out-to-Out Width: 9.8m (32.2ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 30.8 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor (LRFR),  Inventory Rating: 12.7 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor (LRFR),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Latex Concrete
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Structure Number: S00518000+00001,  Location: MONTANA CITY (Lat: 46.540569,  Lng: -111.944928),  Route carried "on" structure: State highway 518,  Year Built: 1968,  Status: Open,  Structure Length: 9.05m (29.69ft),  Average Daily Traffic: 4,659 (year 2020),  Truck Traffic: 1%,  Average Future Daily Traffic: 4,892 (year 2040),  Design Load: HS 20,  Features Intersected: INT MONTANA CITY-I 15
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: 9.8m (32.2ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 23.3m (76.4ft),  Curb or Sidewalk Widths: Left: 0.1m (0.3ft),  Right: 0.1m (0.3ft),  Curb-To-Curb Width: 9.6m (31.5ft),  Out-to-Out Width: 10.4m (34.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 37.2 metric tons,  Method Used To Determine Operating Rating: Load and Resistance Factor (LRFR),  Inventory Rating: 18.1 metric tons,  Method Used To Determine Inventory Rating: Load and Resistance Factor (LRFR),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: I00015185+05791,  Location: 19M S MONTANA CITY (Lat: 46.511433,  Lng: -111.947842),  Route carried "under" structure: ServiceCounty highway 22925,  Year Built: 1968,  Structure Length: 0. m,  Average Daily Traffic: 100 (year 2022),  Truck Traffic: 3%,  Features Intersected: SEP S HWY 282,  Facility Carried by Structure: I 15
Minimum Vertical Clearance: 5.18m (16.99ft),  Kilometerpoint: 15.626,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 15.5m (50.9ft)

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Structure Number: L22926001+05001,  Location: 1M N MONTANA CITY (Lat: 46.563567,  Lng: -111.958172),  Route carried "under" structure: Interstate 15,  Year Built: 1968,  Structure Length: 0. m,  Average Daily Traffic: 10,564 (year 2020),  Truck Traffic: 7%,  Features Intersected: I-15,  Facility Carried by Structure: S HILLS RD-HWY 282
Minimum Vertical Clearance: 5.28m (17.32ft),  Kilometerpoint: 304.219,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 23.2m (76.1ft)

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Structure Number: S00518000+00001,  Location: MONTANA CITY (Lat: 46.540569,  Lng: -111.944928),  Route carried "under" structure: Interstate 15,  Year Built: 1968,  Structure Length: 0. m,  Average Daily Traffic: 10,564 (year 2020),  Truck Traffic: 7%,  Features Intersected: INT MONTANA CITY-I 15,  Facility Carried by Structure: S 518
Minimum Vertical Clearance: 5.33m (17.49ft),  Kilometerpoint: 301.444,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 23.3m (76.4ft)

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