Bridge Statistics for North Spearfish, South Dakota (SD)
Condition, Traffic, Stress, Structural Evaluation, Project Costs

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Structure Number: 41061056,  Location: 3 W US 85 INTERCH (Lat: 44.522989,  Lng: -103.929419),  Route carried "on" structure: Interstate 90,  Year Built: 1974,  Status: Open,  Structure Length: 5.31m (17.42ft),  Average Daily Traffic: 3,135 (year 2021),  Truck Traffic: 21%,  Average Future Daily Traffic: 4,834 (year 2041),  Design Load: HS 20+Mod,  Features Intersected: FAS COUNTY RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.298,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 4 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 56.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.7 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,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 41061057,  Location: 3 W US 85 INTERCH (Lat: 44.522703,  Lng: -103.929156),  Route carried "on" structure: Interstate 90,  Year Built: 1974,  Status: Open,  Structure Length: 5.31m (17.42ft),  Average Daily Traffic: 3,135 (year 2021),  Truck Traffic: 21%,  Average Future Daily Traffic: 4,834 (year 2041),  Design Load: HS 20+Mod,  Features Intersected: FAS COUNTY RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.298,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 4 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 21.3m (69.9ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 56.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.7 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,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 41068069,  Location: .9N 2.7W SPEARFISH (Lat: 44.503339,  Lng: -103.912581),  Route carried "on" structure: County highway ,  Year Built: 2000,  Status: Open,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 69 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 69 (year 2032),  Design Load: HS 20+Mod,  Features Intersected: HIGGINS GULCH,  Facility Carried by Structure: HOMESTAKE ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 15.6m (51.2ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Satisfactory,  Culverts: Very good,  Operating Rating: 96.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 57.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Superior to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: July 2020

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Structure Number: 4108406,  Location: 1W JCT US85 (Lat: 44.517944,  Lng: -103.883078),  Route carried "on" structure: County highway ,  Year Built: 1940,  Status: Open,  Structure Length: 0.67m (2.20ft),  Average Daily Traffic: 2,000 (year 2019),  Truck Traffic: 3%,  Average Future Daily Traffic: 2,000 (year 2032),  Features Intersected: HIGGINS GULCH,  Facility Carried by Structure: HOMESTAKE ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.0m (9.8ft)

Condition: Channel: Good,  Culverts: Fair,  Operating Rating: 32.7 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.5 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: 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: July 2020,  Wearing Surface/Protective System: Wearing Surface: Bituminous

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Structure Number: 41091058,  Location: 0.3 W US 85 INTERCH (Lat: 44.520536,  Lng: -103.867178),  Route carried "on" structure: Interstate 90,  Year Built: 1971,  Status: Open,  Structure Length: 4.69m (15.39ft),  Average Daily Traffic: 4,580 (year 2021),  Truck Traffic: 15%,  Average Future Daily Traffic: 7,191 (year 2041),  Design Load: HS 20+Mod,  Features Intersected: SPEARFISH CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.222,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 2 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 19.2m (63.0ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.4m (40.7ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 51.8 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: Equal to present minimum criteria,  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,  Inspection Date: January 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 41091059,  Location: 0.3 W US 85 INTERCH (Lat: 44.520297,  Lng: -103.867078),  Route carried "on" structure: Interstate 90,  Year Built: 1971,  Status: Open,  Structure Length: 4.51m (14.80ft),  Average Daily Traffic: 4,580 (year 2021),  Truck Traffic: 15%,  Average Future Daily Traffic: 7,191 (year 2041),  Design Load: HS 20+Mod,  Features Intersected: SPEARFISH CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.222,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 2 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 19.2m (63.0ft),  Curb-To-Curb Width: 11.6m (38.1ft),  Out-to-Out Width: 12.4m (40.7ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 52.6 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: 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,  Inspection Date: January 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 41092059,  Location: 0.3 W US 85 INTERCH (Lat: 44.519653,  Lng: -103.866828),  Route carried "on" structure: Ramp Interstate 90,  Year Built: 1971,  Status: Open,  Structure Length: 6.89m (22.60ft),  Average Daily Traffic: 1,271 (year 2020),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,675 (year 2040),  Design Load: HS 20,  Features Intersected: SPEARFISH CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 16.303,  Lanes on structure: 1,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 4 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 25.9m (85.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 65.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.0 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 4109206,  Location: 0.2 W JCT US 85 (Lat: 44.517922,  Lng: -103.865672),  Route carried "on" structure: County highway ,  Year Built: 1971,  Status: Open,  Structure Length: 5.27m (17.29ft),  Average Daily Traffic: 2,000 (year 2019),  Truck Traffic: 3%,  Average Future Daily Traffic: 2,000 (year 2032),  Design Load: HS 20,  Features Intersected: SPEARFISH CK,  Facility Carried by Structure: EXIT 10 SERVICE RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 4 degrees,  Material/Design: Steel continuous,  Design/Construction: Girder and Floorbeam System,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 24.8m (81.4ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.0m (42.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 44.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.4 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 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 41095059,  Location: US 85 INTERCHANGE (Lat: 44.520253,  Lng: -103.864133),  Route carried "on" structure: US 85,  Year Built: 1971,  Year Reconstructed: 2011,  Status: Open,  Structure Length: 10.08m (33.07ft),  Average Daily Traffic: 4,211 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 5,697 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: I090
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 72.115,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 11.0m (36.1ft),  Skew: 3 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 32.3m (106.0ft),  Curb-To-Curb Width: 25.6m (84.0ft),  Out-to-Out Width: 26.4m (86.6ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 54.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.7 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,  Underclear: Somewhat better than minimum adequacy,  Approach Roadway Alignment: Equal to 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: Monolithic Concrete,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: 20308000010024,  Location: T 6 N R 2 E SEC 7 (Lat: 44.497525,  Lng: -103.924508),  Route carried "on" structure: Federal lands road 214,  Year Built: 1963,  Year Reconstructed: 1982,  Status: Open,  Structure Length: 0.80m (2.62ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Design Load: H 20,  Features Intersected: HIGGINS GULCH,  Facility Carried by Structure: HIGGINS GULCH
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 19.040,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 5.2m (17.1ft),  Material/Design: Prestressed concrete,  Design/Construction: Channel Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 4.5m (14.8ft),  Out-to-Out Width: 4.7m (15.4ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 36.9 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: 28.5 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: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 41061056,  Location: 3 W US 85 INTERCH (Lat: 44.522989,  Lng: -103.929419),  Route carried "under" structure: County highway ,  Year Built: 1974,  Structure Length: 0. m,  Average Daily Traffic: 2,015 (year 2020),  Truck Traffic: 5%,  Features Intersected: FAS COUNTY RD,  Facility Carried by Structure: I090 W
Minimum Vertical Clearance: 5.38m (17.65ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 21.3m (69.9ft)

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Structure Number: 41061057,  Location: 3 W US 85 INTERCH (Lat: 44.522703,  Lng: -103.929156),  Route carried "under" structure: County highway ,  Year Built: 1974,  Structure Length: 0. m,  Average Daily Traffic: 2,015 (year 2020),  Truck Traffic: 5%,  Features Intersected: FAS COUNTY RD,  Facility Carried by Structure: I090 E
Minimum Vertical Clearance: 4.98m (16.34ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 21.3m (69.9ft)

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Structure Number: 41095059,  Location: US 85 INTERCHANGE (Lat: 44.520253,  Lng: -103.864133),  Route carried "under" structure: Interstate 90,  Year Built: 1971,  Structure Length: 0. m,  Average Daily Traffic: 9,360 (year 2020),  Truck Traffic: 18%,  Features Intersected: I090,  Facility Carried by Structure: US085
Minimum Vertical Clearance: 5.21m (17.09ft),  Kilometerpoint: 16.576,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 32.3m (106.0ft)