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

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Structure Number: 17328015,  Location: 3.8 S PENNINGTON CO LINE (Lat: 43.846631,  Lng: -103.402289),  Route carried "on" structure: Alternate US 16,  Year Built: 1992,  Status: Open,  Structure Length: 0.64m (2.10ft),  Average Daily Traffic: 539 (year 2021),  Truck Traffic: 13%,  Average Future Daily Traffic: 879 (year 2041),  Design Load: HS 20+Mod,  Features Intersected: IRON CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 77.506,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.1m (10.2ft)

Condition: Channel: Very good,  Culverts: Good,  Operating Rating: 89.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 84.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: April 2019

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Structure Number: 52308411,  Location: KEYSTONE INTERCHANGE (Lat: 43.924869,  Lng: -103.442450),  Route carried "on" structure: Alternate US 16,  Year Built: 1968,  Status: Open,  Structure Length: 5.18m (16.99ft),  Average Daily Traffic: 3,801 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 5,994 (year 2041),  Design Load: HS 20,  Features Intersected: US016 E
Minimum Vertical Clearance: 5.43m (17.81ft),  Kilometerpoint: 95.692,  Lanes on structure: 1,  Lanes under structure: 1,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.5m (54.1ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 76.7 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 48.6 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 52308412,  Location: KEYSTONE INTERCHANGE (Lat: 43.925133,  Lng: -103.442758),  Route carried "on" structure: Alternate US 16,  Year Built: 1968,  Status: Open,  Structure Length: 8.84m (29.00ft),  Average Daily Traffic: 3,801 (year 2021),  Truck Traffic: 12%,  Average Future Daily Traffic: 5,994 (year 2041),  Design Load: HS 20,  Features Intersected: US016AW
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 95.659,  Lanes on structure: 1,  Lanes under structure: 1,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Wood or Timber,  Design/Construction: Arch - Deck,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 6,  Length of Maximum Span: 47.2m (154.9ft),  Curb-To-Curb Width: 7.9m (25.9ft),  Out-to-Out Width: 8.6m (28.2ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Operating Rating: 59.8 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 41.5 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of corrective action,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2022,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 52310446,  Location: 0.9 S JCT SD 244 (Lat: 43.874983,  Lng: -103.439264),  Route carried "on" structure: Alternate US 16,  Year Built: 1985,  Status: Open,  Structure Length: 4.63m (15.19ft),  Average Daily Traffic: 404 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 586 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: US016A,
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 88.047,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 5,  Length of Maximum Span: 10.7m (35.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 54.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: 52311432,  Location: 0.9 W. KEYSTONE (Lat: 43.894650,  Lng: -103.436572),  Route carried "on" structure: County highway ,  Year Built: 1973,  Status: Open,  Structure Length: 1.37m (4.49ft),  Average Daily Traffic: 400 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 400 (year 2032),  Design Load: HS 20,  Features Intersected: BATTLE CK,  Facility Carried by Structure: OLD HILL CITY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 13.4m (44.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 53.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.2 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 minimum criteria,  Approach Roadway Alignment: High priority of corrective action,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 52311444,  Location: 0.7 S JCT SD 244 (Lat: 43.878078,  Lng: -103.437972),  Route carried "on" structure: Alternate US 16,  Year Built: 1974,  Status: Open,  Structure Length: 1.16m (3.81ft),  Average Daily Traffic: 586 (year 2021),  Truck Traffic: 17%,  Average Future Daily Traffic: 924 (year 2041),  Design Load: HS 20,  Features Intersected: GRIZZLY BEAR CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 88.466,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Skew: 4 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.0m (36.1ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.6m (34.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 98.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 58.1 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: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 52311454,  Location: 2.7 S JCT SD 244 (Lat: 43.861819,  Lng: -103.437519),  Route carried "on" structure: Alternate US 16,  Year Built: 1992,  Status: Open,  Structure Length: 2.57m (8.43ft),  Average Daily Traffic: 317 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 460 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: US016A,
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 85.327,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 12.6m (41.3ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 89.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 67.9 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,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: 52312433,  Location: .8 WEST OF KEYSTONE (Lat: 43.894036,  Lng: -103.435767),  Route carried "on" structure: County highway ,  Year Built: 1973,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 400 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 400 (year 2032),  Design Load: HS 20,  Features Intersected: BATTLE CK,  Facility Carried by Structure: OLD HILL CITY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Channel: Very good,  Operating Rating: 22.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 13.5 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: High priority of replacement,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 52312449,  Location: 1.8 S JCT SD 244 (Lat: 43.869164,  Lng: -103.435764),  Route carried "on" structure: Alternate US 16,  Year Built: 1976,  Status: Open,  Structure Length: 5.36m (17.59ft),  Average Daily Traffic: 404 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 586 (year 2040),  Design Load: HS 20,  Features Intersected: US016A,
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 87.049,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 6,  Length of Maximum Span: 10.7m (35.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Fair,  Operating Rating: 84.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 50.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 52313449,  Location: 1.9 S JCT SD 244 (Lat: 43.869086,  Lng: -103.434669),  Route carried "on" structure: Alternate US 16,  Year Built: 1992,  Status: Open,  Structure Length: 4.79m (15.72ft),  Average Daily Traffic: 586 (year 2021),  Truck Traffic: 17%,  Average Future Daily Traffic: 924 (year 2041),  Design Load: HS 20+Mod,  Features Intersected: DRAW
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 86.921,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 6.1m (20.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 8,  Length of Maximum Span: 6.8m (22.3ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Channel: Very good,  Operating Rating: 89.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 53.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: October 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete,  Membrane: Epoxy,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: 52314432,  Location: 0.6W KEYSTONE (Lat: 43.894483,  Lng: -103.431811),  Route carried "on" structure: County highway ,  Year Built: 1973,  Status: Open,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 375 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 375 (year 2032),  Design Load: HS 20,  Features Intersected: BATTLE CK,  Facility Carried by Structure: OLD HILL CITY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.6m (24.9ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.4m (34.1ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 65.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 38.9 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: June 2021,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous

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Structure Number: 52314435,  Location: ENTRANCE TO BORGLUM CENT. (Lat: 43.891583,  Lng: -103.426800),  Route carried "on" structure: City street ,  Year Built: 2008,  Status: Open,  Structure Length: 1.61m (5.28ft),  Average Daily Traffic: 3,200 (year 2019),  Truck Traffic: 8%,  Average Future Daily Traffic: 3,850 (year 2032),  Features Intersected: CK,  Facility Carried by Structure: WINTER STREET.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 8.2m (26.9ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 15.2m (49.9ft),  Curb-To-Curb Width: 8.2m (26.9ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 34.0 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 24.9 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Superior to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 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: 52317433,  Location: 2.7 S JCT US 16 (Lat: 43.893497,  Lng: -103.425444),  Route carried "on" structure: Alternate US 16,  Year Built: 1968,  Year Reconstructed: 1976,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 3,656 (year 2021),  Truck Traffic: 3%,  Average Future Daily Traffic: 5,766 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 91.539,  Lanes on structure: 4,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 15.9m (52.2ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 17.1m (56.1ft),  Out-to-Out Width: 18.3m (60.0ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 78.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.3 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 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: Bituminous,  Membrane: Preformed Fabric

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Structure Number: 52317436,  Location: AT KEYSTONE (Lat: 43.888456,  Lng: -103.425036),  Route carried "on" structure: ServiceUS 16,  Year Built: 1973,  Status: Open,  Structure Length: 1.13m (3.71ft),  Average Daily Traffic: 1,993 (year 2020),  Truck Traffic: 1%,  Average Future Daily Traffic: 1,993 (year 2040),  Design Load: HS 20,  Features Intersected: GRIZZLY BEAR CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 90.767,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.4m (34.1ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.1m (26.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 83.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 50.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 52317437,  Location: 0.3S JCT 16A40 KEYSTONE (Lat: 43.887708,  Lng: -103.425558),  Route carried "on" structure: City street ,  Year Built: 1974,  Status: Open,  Structure Length: 1.07m (3.51ft),  Average Daily Traffic: 150 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 150 (year 2032),  Features Intersected: GRIZZLY BEAR CK,  Facility Carried by Structure: CEMETERY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.4m (34.1ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.2m (26.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  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: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 1.07m (3.51ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Epoxy Overlay,  Membrane: Epoxy

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Structure Number: 52318433,  Location: 150S200E JCT16A40 KEYSTON (Lat: 43.893303,  Lng: -103.425022),  Route carried "on" structure: City street ,  Year Built: 1974,  Status: Open,  Structure Length: 1.83m (6.00ft),  Average Daily Traffic: 125 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 125 (year 2032),  Design Load: HL 93,  Features Intersected: GRIZZLY BEAR CK,  Facility Carried by Structure: SWANZEY DRIVE
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 2 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 9.1m (29.9ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Excellent,  Superstructure: Excellent,  Substructure: Very good,  Channel: Good,  Operating Rating: 63.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 49.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 0.61m (2.00ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 52318435,  Location: ROY ST - KEYSTONE (Lat: 43.889494,  Lng: -103.423758),  Route carried "on" structure: City street ,  Year Built: 1955,  Status: Posted for load,  Structure Length: 0.94m (3.08ft),  Average Daily Traffic: 200 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 200 (year 2032),  Features Intersected: GRIZZLY BEAR CK,  Facility Carried by Structure: ROY STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 4.9m (16.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  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: 5.2m (17.1ft),  Out-to-Out Width: 5.5m (18.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Fair,  Operating Rating: 18.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 13.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of replacement,  Waterway Adequacy: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 0.91m (2.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 52319433,  Location: 0.3E JCT 16A/40 KEYSTONE (Lat: 43.893606,  Lng: -103.420203),  Route carried "on" structure: City street ,  Year Built: 1974,  Status: Open,  Structure Length: 1.89m (6.20ft),  Average Daily Traffic: 125 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 125 (year 2032),  Design Load: HS 20,  Features Intersected: BATTLE CK,  Facility Carried by Structure: 3RD STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: Town or Township Highway Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 8.0m (26.2ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 32.7 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 25.4 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 1.83m (6.00ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Monolithic Concrete

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Structure Number: 5232043,  Location: 0.7 E JCT US 16A (Lat: 43.898286,  Lng: -103.418606),  Route carried "on" structure: State highway 40,  Year Built: 1974,  Status: Open,  Structure Length: 4.05m (13.29ft),  Average Daily Traffic: 1,070 (year 2021),  Truck Traffic: 6%,  Average Future Daily Traffic: 1,687 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 52.561,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.8m (48.6ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 11.7m (38.4ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 81.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 48.8 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: Better than present minimum criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 52322427,  Location: 1.0 E JCT US 16A (Lat: 43.901144,  Lng: -103.414106),  Route carried "on" structure: State highway 40,  Year Built: 1974,  Status: Open,  Structure Length: 3.19m (10.47ft),  Average Daily Traffic: 1,070 (year 2021),  Truck Traffic: 6%,  Average Future Daily Traffic: 1,687 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 53.076,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 12.8m (42.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.6m (34.8ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 89.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 65.0 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: Somewhat better than minimum adequacy,  Length Of Structure Improvement: 3.19m (10.47ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Bridge Improvement Cost: $48,000,  Roadway Improvement Cost: $16,000,  Total Project Cost: $96,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 52327427,  Location: 1.4 E JCT US 16A (Lat: 43.901792,  Lng: -103.406122),  Route carried "on" structure: State highway 40,  Year Built: 1974,  Status: Open,  Structure Length: 5.03m (16.50ft),  Average Daily Traffic: 1,070 (year 2021),  Truck Traffic: 6%,  Average Future Daily Traffic: 1,687 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 53.720,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 5 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 13.8m (45.3ft),  Curb-To-Curb Width: 10.1m (33.1ft),  Out-to-Out Width: 10.9m (35.8ft)

Condition: Deck: Fair,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 86.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 51.9 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,  Length Of Structure Improvement: 5.03m (16.50ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2021,  Bridge Improvement Cost: $77,000,  Roadway Improvement Cost: $16,000,  Total Project Cost: $125,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 52328428,  Location: 1.6 E JCT US 16A (Lat: 43.898503,  Lng: -103.401489),  Route carried "on" structure: State highway 40,  Year Built: 1974,  Status: Open,  Structure Length: 2.86m (9.38ft),  Average Daily Traffic: 900 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,419 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 54.283,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 4 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 15.0m (49.2ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.6m (34.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 62.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.4 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: Somewhat better than minimum adequacy,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 5232943,  Location: 1.7 E JCT US 16A (Lat: 43.897297,  Lng: -103.399611),  Route carried "on" structure: State highway 40,  Year Built: 1974,  Status: Open,  Structure Length: 2.43m (7.97ft),  Average Daily Traffic: 900 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,419 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 54.476,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 5 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.6m (34.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 74.3 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 44.5 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 minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 52332431,  Location: 2.2 E JCT US 16A (Lat: 43.895122,  Lng: -103.395114),  Route carried "on" structure: State highway 40,  Year Built: 1974,  Status: Open,  Structure Length: 3.49m (11.45ft),  Average Daily Traffic: 900 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,419 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 54.927,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 5 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 14.2m (46.6ft),  Curb-To-Curb Width: 9.8m (32.2ft),  Out-to-Out Width: 10.6m (34.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 77.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 46.4 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 minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 52337433,  Location: 2.6 E JCT US 16A (Lat: 43.892003,  Lng: -103.385692),  Route carried "on" structure: State highway 40,  Year Built: 1974,  Status: Open,  Structure Length: 5.03m (16.50ft),  Average Daily Traffic: 900 (year 2021),  Truck Traffic: 10%,  Average Future Daily Traffic: 1,419 (year 2041),  Design Load: HS 20,  Features Intersected: BATTLE CK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 55.764,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Skew: 5 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 13.8m (45.3ft),  Curb-To-Curb Width: 10.1m (33.1ft),  Out-to-Out Width: 10.9m (35.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Satisfactory,  Channel: Satisfactory,  Operating Rating: 86.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 51.9 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 minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 52341445,  Location: 2.3 N. SPOKANE (Lat: 43.873708,  Lng: -103.378647),  Route carried "on" structure: County highway ,  Year Built: 1977,  Status: Open,  Structure Length: 1.22m (4.00ft),  Average Daily Traffic: 125 (year 2019),  Truck Traffic: 2%,  Average Future Daily Traffic: 125 (year 2032),  Design Load: HS 20,  Features Intersected: IRON CK,  Facility Carried by Structure: PLAYHOUSE ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.0m (23.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 11.9m (39.0ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.4m (30.8ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 60.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 36.4 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 minimum criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2020,  Deck Structure Type: Concrete Precast Panels,  Wearing Surface/Protective System: Wearing Surface: Bituminous

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Structure Number: 20303000001022,  Location: T 2 S R 6 E SEC 32 (Lat: 43.836933,  Lng: -103.435714),  Route carried "on" structure: Federal lands road 345,  Year Built: 1958,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.92m (3.02ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 4.352,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.3m (14.1ft),  Skew: 4 degrees,  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.5m (27.9ft),  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: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 62.9 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: 48.6 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000001026,  Location: T 2 S R 6 E SEC 31 (Lat: 43.837183,  Lng: -103.451150),  Route carried "on" structure: Federal lands road 345,  Year Built: 1991,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 25 (year 2013),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.752,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.3m (14.1ft),  Material/Design: Aluminum, Iron,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 0.0m

Condition: Channel: Good,  Culverts: Good,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021

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Structure Number: 2030300001004,  Location: T 2 S R 5 E SEC 36 (Lat: 43.827256,  Lng: -103.458814),  Route carried "on" structure: Federal lands road 345,  Year Built: 1957,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.69m (2.26ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.408,  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: 6.2m (20.3ft),  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: 4.7m (15.4ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 55.4 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: 42.8 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000010041,  Location: T 2 S R 6 E SEC 31 (Lat: 43.830942,  Lng: -103.457517),  Route carried "on" structure: Federal lands road 345,  Year Built: 1958,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.80m (2.62ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.680,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.3m (14.1ft),  Skew: 4 degrees,  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-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: 4.9m (16.1ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 60.9 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: 47.0 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000010042,  Location: T 2 S R 6 E SEC 31 (Lat: 43.835853,  Lng: -103.452950),  Route carried "on" structure: Federal lands road 345,  Year Built: 1954,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Design Load: HS 20,  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.464,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.3m (14.1ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.4m (30.8ft),  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: 4.7m (15.4ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Very good,  Operating Rating: 59.6 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: 46.0 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000010043,  Location: T 2 S R 6 E SEC 30 (Lat: 43.840300,  Lng: -103.440300),  Route carried "on" structure: Federal lands road 345,  Year Built: 1957,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.76m (2.49ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 3.680,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.6m (15.1ft),  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: 4.7m (15.4ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 50.9 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: 39.2 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000010045,  Location: T 2 S R 6 E SEC 32 (Lat: 43.837394,  Lng: -103.432517),  Route carried "on" structure: Federal lands road 345,  Year Built: 1958,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.75m (2.46ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 5.056,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.3m (14.1ft),  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: 4.7m (15.4ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 53.1 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: 40.8 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000010072,  Location: T 2 S R 6 E SEC 31 (Lat: 43.835286,  Lng: -103.455117),  Route carried "on" structure: Federal lands road 345,  Year Built: 1956,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.80m (2.62ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.208,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.1m (13.5ft),  Skew: 4 degrees,  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-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: 4.3m (14.1ft),  Out-to-Out Width: 4.6m (15.1ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 57.3 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: 44.1 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000010082,  Location: T 2 S R 6 E SEC 31 (Lat: 43.837217,  Lng: -103.451175),  Route carried "on" structure: Federal lands road 345,  Year Built: 1954,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.94m (3.08ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.656,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.6m (15.1ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.9m (29.2ft),  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: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 57.3 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: 44.4 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: Better than 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20303000010097,  Location: T 2 S R 6 E SEC 31 (Lat: 43.838669,  Lng: -103.448208),  Route carried "on" structure: Federal lands road 345,  Year Built: 1956,  Year Reconstructed: 1986,  Status: Open,  Structure Length: 0.71m (2.33ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: IRON CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 2.928,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.3m (14.1ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.6m (21.7ft),  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: 4.7m (15.4ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 62.2 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: 48.0 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: 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: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 20306000002008,  Location: T2S R6E SECTION 17 (Lat: 43.879186,  Lng: -103.435489),  Route carried "on" structure: Federal lands road ,  Year Built: 1973,  Year Reconstructed: 1987,  Status: Open,  Structure Length: 1.02m (3.35ft),  Average Daily Traffic: 25 (year 1992),  Average Future Daily Traffic: 37 (year 2042),  Features Intersected: GRIZZLY BEAR CREEK,  Facility Carried by Structure: GRIZZLY PG
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.032,  Lanes on structure: 1,  Owner: U.S. Forest Service,  Approaching Roadway Width: 4.9m (16.1ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.7m (31.8ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 5.5m (18.0ft),  Out-to-Out Width: 5.8m (19.0ft)

Condition: Deck: Very good,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 31.4 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: 24.3 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: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: August 2021,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber

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Structure Number: 52308411,  Location: KEYSTONE INTERCHANGE (Lat: 43.924869,  Lng: -103.442450),  Route carried "under" structure: US 16,  Year Built: 1968,  Structure Length: 0. m,  Average Daily Traffic: 3,678 (year 2020),  Truck Traffic: 3%,  Features Intersected: US016 E
Minimum Vertical Clearance: 4.95m (16.24ft),  Kilometerpoint: 81.433,  Lanes on structure: 1,  Lanes under structure: 1,  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 16.5m (54.1ft)

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Structure Number: 52308412,  Location: KEYSTONE INTERCHANGE (Lat: 43.925133,  Lng: -103.442758),  Route carried "under" structure: Alternate US 16,  Year Built: 1968,  Structure Length: 0. m,  Average Daily Traffic: 2,023 (year 2020),  Truck Traffic: 6%,  Features Intersected: US016AW
Minimum Vertical Clearance: 5.43m (17.81ft),  Kilometerpoint: 95.692,  Lanes on structure: 1,  Lanes under structure: 1,  Material/Design: Wood or Timber,  Design/Construction: Arch - Deck,  Length of Maximum Span: 47.2m (154.9ft)

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Structure Number: 52310446,  Location: 0.9 S JCT SD 244 (Lat: 43.874983,  Lng: -103.439264),  Route carried "under" structure: Alternate US 16,  Year Built: 1985,  Structure Length: 0. m,  Average Daily Traffic: 586 (year 2021),  Truck Traffic: 17%,  Features Intersected: US016A,
Minimum Vertical Clearance: 6.35m (20.83ft),  Kilometerpoint: 88.047,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 10.7m (35.1ft)

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Structure Number: 52311454,  Location: 2.7 S JCT SD 244 (Lat: 43.861819,  Lng: -103.437519),  Route carried "under" structure: Alternate US 16,  Year Built: 1992,  Structure Length: 0. m,  Average Daily Traffic: 340 (year 2021),  Truck Traffic: 5%,  Features Intersected: US016A,
Minimum Vertical Clearance: 5.08m (16.67ft),  Kilometerpoint: 85.327,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 12.6m (41.3ft)

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Structure Number: 52312449,  Location: 1.8 S JCT SD 244 (Lat: 43.869164,  Lng: -103.435764),  Route carried "under" structure: Alternate US 16,  Year Built: 1976,  Structure Length: 0. m,  Average Daily Traffic: 586 (year 2021),  Truck Traffic: 17%,  Features Intersected: US016A,
Minimum Vertical Clearance: 4.09m (13.42ft),  Kilometerpoint: 87.049,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 10.7m (35.1ft)