Bridge Statistics for Silver Bay, Minnesota (MN)
Condition, Traffic, Stress, Structural Evaluation, Project Costs

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Structure Number: 3459,  Location: SW OF BRIDGE 38007 (Lat: 47.337139,  Lng: -91.199897),  Route carried "on" structure: State lands road 20,  Year Built: 1923,  Status: Posted for load,  Structure Length: 11.67m (38.29ft),  Average Daily Traffic: 100 (year 1985),  Average Future Daily Traffic: 100 (year 2029),  Features Intersected: BAPTISM RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: State Park, Forest, or Reservation Agency,  Approaching Roadway Width: 7.9m (25.9ft),  Material/Design: Steel,  Design/Construction: Truss - Deck,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 4,  Length of Maximum Span: 42.7m (140.1ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 6.0m (19.7ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 26.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 14.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 30.0 - 39.9% below),  Length Of Structure Improvement: 3.57m (11.71ft),  Designated Inspection Frequency: Every 12 months,  Critical Feature Inspection Frequency: Every 24 months,  Inspection Date: October 2021,  Critical Feature Inspection Date: October 2020,  Bridge Improvement Cost: $999,999,000,  Roadway Improvement Cost: $64,000,000,  Total Project Cost: $964,000,000,  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous

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Structure Number: 38007,  Location: 1.1 MI SW OF JCT TH 1 (Lat: 47.337483,  Lng: -91.200250),  Route carried "on" structure: State highway 61,  Year Built: 1968,  Status: Open,  Structure Length: 17.45m (57.25ft),  Average Daily Traffic: 3,954 (year 2019),  Truck Traffic: 7%,  Average Future Daily Traffic: 3,550 (year 2039),  Design Load: HS 20,  Features Intersected: BAPTISM RIVER; PARK RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 47.1m (154.5ft),  Curb or Sidewalk Widths: Left: 1.5m (4.9ft),  Right: 1.5m (4.9ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 17.4m (57.1ft)

Condition: Deck: Satisfactory,  Superstructure: Fair,  Substructure: Satisfactory,  Channel: Very good,  Operating Rating: 62.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Equal to present minimum criteria,  Underclear: 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: August 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete

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Structure Number: 38013,  Location: 6.0 MI NE OF JCT CSAH 4 (Lat: 47.322608,  Lng: -91.215897),  Route carried "on" structure: State highway 61,  Year Built: 2005,  Status: Open,  Structure Length: 4.07m (13.35ft),  Average Daily Traffic: 4,554 (year 2019),  Truck Traffic: 7%,  Average Future Daily Traffic: 4,500 (year 2039),  Design Load: HL 93,  Features Intersected: PALISADE CREEK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 3,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 40.2m (131.9ft),  Curb-To-Curb Width: 16.5m (54.1ft),  Out-to-Out Width: 17.5m (57.4ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Excellent,  Operating Rating: 69.6 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 1.49m (4.89ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $910,000,000,  Roadway Improvement Cost: $1,000,  Total Project Cost: $1,000,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Low Slump Concrete,  Deck Protection: Epoxy Coated Reinforcing

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Structure Number: 38J03,  Location: 1.2 MI W OF JCT CSAH 4 (Lat: 47.323353,  Lng: -91.349511),  Route carried "on" structure: County highway 15,  Year Built: 1998,  Status: Open,  Structure Length: 0.78m (2.56ft),  Average Daily Traffic: 350 (year 2014),  Average Future Daily Traffic: 350 (year 2039),  Design Load: HS 25 or greater,  Features Intersected: E BRANCH BEAVER RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  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: Very good,  Operating Rating: 58.8 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 39.2 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 desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: August 2021

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Structure Number: 38J18,  Location: 1.3 MI N OF JCT CSAH 5 (Lat: 47.310964,  Lng: -91.325250),  Route carried "on" structure: County highway 4,  Year Built: 2007,  Status: Open,  Structure Length: 0.82m (2.69ft),  Average Daily Traffic: 1,200 (year 2014),  Truck Traffic: 6%,  Average Future Daily Traffic: 1,200 (year 2039),  Design Load: HS 25 or greater,  Features Intersected: E BRANCH BEAVER RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Channel: Good,  Culverts: Very good,  Operating Rating: 68.6 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 40.8 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 desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: August 2021

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Structure Number: 38J19,  Location: 0.2 MI E OF JCT CSAH 4 (Lat: 47.295086,  Lng: -91.319497),  Route carried "on" structure: County highway 5,  Year Built: 2007,  Status: Open,  Structure Length: 1.62m (5.31ft),  Average Daily Traffic: 930 (year 2014),  Truck Traffic: 6%,  Average Future Daily Traffic: 930 (year 2039),  Design Load: HS 25 or greater,  Features Intersected: E BRANCH BEAVER RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: County Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 2 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 4.7m (15.4ft)

Condition: Channel: Very good,  Culverts: Very good,  Operating Rating: 68.6 metric tons,  Method Used To Determine Operating Rating: Assigned rating based on Load Factor Design (LFD) reported in metric tons,  Inventory Rating: 40.8 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 desirable criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 48 months,  Inspection Date: August 2021

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Structure Number: 7227,  Location: 0.1 MI S OF JCT CSAH 3 (Lat: 47.273300,  Lng: -91.322211),  Route carried "on" structure: County highway 4,  Year Built: 1959,  Status: Open,  Structure Length: 2.83m (9.28ft),  Average Daily Traffic: 480 (year 2014),  Average Future Daily Traffic: 480 (year 2039),  Design Load: HS 25 or greater,  Features Intersected: W BR BEAVER RIVER
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),  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 9.4m (30.8ft),  Curb-To-Curb Width: 11.0m (36.1ft),  Out-to-Out Width: 11.9m (39.0ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Good,  Channel: Very good,  Operating Rating: 94.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 52.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.04m (3.41ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: September 2021,  Bridge Improvement Cost: $359,000,000,  Roadway Improvement Cost: $23,000,000,  Total Project Cost: $345,000,000,  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: 8788,  Location: 2.8 MI NE OF JCT CSAH 4 (Lat: 47.286981,  Lng: -91.265289),  Route carried "on" structure: State highway 61,  Year Built: 1952,  Status: Open,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 5,105 (year 2019),  Truck Traffic: 8%,  Average Future Daily Traffic: 4,700 (year 2039),  Features Intersected: CONVEYER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 3.7m (12.1ft)

Condition: Culverts: Satisfactory,  Operating Rating: 39.2 metric tons,  Method Used To Determine Operating Rating: Assigned ratings based on Allowable Stress Design (ASD) reported in metric tons,  Inventory Rating: 29.4 metric tons,  Method Used To Determine Inventory Rating: Assigned ratings based on Allowable Stress Design (ASD) reported in metric tons,  Structural Evaluation: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021

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Structure Number: 93346,  Location: 2.6 MI NE OF JCT CSAH 4 (Lat: 47.287003,  Lng: -91.265306),  Route carried "on" structure: State highway 61,  Year Built: 1978,  Status: Open,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 5,105 (year 2019),  Truck Traffic: 8%,  Average Future Daily Traffic: 4,700 (year 2039),  Design Load: HS 20,  Features Intersected: CONVEYOR TUNNEL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: Private,  Approaching Roadway Width: 9.8m (32.2ft),  Material/Design: Steel,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.5m (27.9ft)

Condition: Culverts: Satisfactory,  Operating Rating: 35.9 metric tons,  Method Used To Determine Operating Rating: Assigned ratings based on Allowable Stress Design (ASD) reported in metric tons,  Inventory Rating: 26.1 metric tons,  Method Used To Determine Inventory Rating: Assigned ratings based on Allowable Stress Design (ASD) reported in metric tons,  Structural Evaluation: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: May 2021

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Structure Number: 38007,  Location: 1.1 MI SW OF JCT TH 1 (Lat: 47.337483,  Lng: -91.200250),  Route carried "under" structure: State lands road 20,  Year Built: 1968,  Structure Length: 0. m,  Average Daily Traffic: 100 (year 1985),  Features Intersected: BAPTISM RIVER; PARK RD,  Facility Carried by Structure: MN 61
Minimum Vertical Clearance: 4.54m (14.90ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 47.1m (154.5ft)