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Bridge Statistics for Parowan, Utah (UT)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 14Number of bridges
  • 118ft / 36.0mTotal length
  • 141,410Total average daily traffic
  • 48,670Total average daily truck traffic
  • National Bridge Inventory (NBI) Registered Bridges for Parowan
  • No street view available for this location

New bridges in Parowan, UT - historical statistics
  • New bridges - historical statistics
  • 11920-1929
  • 11950-1959
  • 121970-1979
Average Bridge Daily Traffic in Parowan, UT
Average Bridge Truck Traffic in Parowan, UT
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 14.3%Good
  • 71.4%Satisfactory
  • 14.3%Fair
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 42.9%Good
  • 57.1%Satisfactory
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 28.6%Good
  • 71.4%Satisfactory
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 50.0%Good
  • 50.0%Fair
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Structure Number: 21004D,  Location: SOUTH END PAROWAN MAIN ST (Lat: 37.837439,  Lng: -112.827725),  Route carried "on" structure: City street 1786,  Year Built: 1925,  Year Reconstructed: 1938,  Status: Posted for load,  Structure Length: 1.25m (4.10ft),  Average Daily Traffic: 3,800 (year 2020),  Truck Traffic: 2%,  Average Future Daily Traffic: 4,750 (year 2040),  Design Load: H 15,  Features Intersected: PAROWAN CREEK,  Facility Carried by Structure: PAROWAN MAIN ST.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.264,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 2 degrees,  Material/Design: Concrete,  Design/Construction: Tee Beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 10.4m (34.1ft),  Curb-To-Curb Width: 9.1m (29.9ft),  Out-to-Out Width: 9.5m (31.2ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Channel: Good,  Operating Rating: 32.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 21.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Meets minimum limits,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 21009D,  Location: SOUTH END PAROWAN MAIN ST (Lat: 37.837442,  Lng: -112.827275),  Route carried "on" structure: City street ,  Year Built: 1950,  Status: Posted for load,  Structure Length: 0.79m (2.59ft),  Average Daily Traffic: 63 (year 2020),  Average Future Daily Traffic: 77 (year 2040),  Design Load: H 15,  Features Intersected: PAROWAN CREEK,  Facility Carried by Structure: PAROWAN CITY ST.
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.086,  Lanes on structure: 1,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 3.0m (9.8ft),  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 3.0m (9.8ft),  Out-to-Out Width: 3.7m (12.1ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Fair,  Operating Rating: 31.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 19.4 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Somewhat better than minimum adequacy,  Deck Geometry: High priority of replacement,  Waterway Adequacy: Equal to present minimum criteria,  Approach Roadway Alignment: Somewhat better than minimum adequacy,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 0.1 - 9.9% below),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2020,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: C 537,  Location: SO.PAROWAN INTERCHANGE (Lat: 37.839517,  Lng: -112.869650),  Route carried "on" structure: State highway 143,  Year Built: 1973,  Status: Open,  Structure Length: 8.88m (29.13ft),  Average Daily Traffic: 4,240 (year 2020),  Truck Traffic: 20%,  Average Future Daily Traffic: 5,300 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: I-15 (SR-15) NBL AND SBL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.107,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 9.3m (30.5ft),  Skew: 3 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 43.6m (143.0ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.4m (34.1ft)

Condition: Deck: Fair,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 78.4 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: 42.1 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Underclear: Somewhat better than minimum adequacy,  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: Bituminous,  Membrane: Preformed Fabric
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Structure Number: C 538,  Location: NORTH PAROWAN INTERCHANGE (Lat: 37.858197,  Lng: -112.828253),  Route carried "on" structure: State highway 274,  Year Built: 1973,  Status: Open,  Structure Length: 8.02m (26.31ft),  Average Daily Traffic: 1,621 (year 2020),  Truck Traffic: 22%,  Average Future Daily Traffic: 2,026 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: I-15 (SR-15) NBL & SBL
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.783,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 15.4m (50.5ft),  Skew: 1 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 39.9m (130.9ft),  Curb-To-Curb Width: 15.4m (50.5ft),  Out-to-Out Width: 16.4m (53.8ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Satisfactory,  Operating Rating: 83.9 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: 40.2 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to 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: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: E185,  Location: 3.2 MI.NO.SO.PAROWAN INT (Lat: 37.865147,  Lng: -112.821069),  Route carried "on" structure: Interstate 15,  Year Built: 1974,  Status: Open,  Structure Length: 0.73m (2.40ft),  Average Daily Traffic: 20,827 (year 2020),  Truck Traffic: 36%,  Average Future Daily Traffic: 26,034 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: CO.RD.TO KANES SPRING
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 126.505,  Lanes on structure: 4,  Lanes under structure: 1,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 25.6m (84.0ft),  Skew: 25 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 6.9m (22.6ft),  Curb-To-Curb Width: 25.6m (84.0ft),  Out-to-Out Width: 91.3m (299.5ft)

Condition: Culverts: Satisfactory,  Operating Rating: 32.7 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: 31.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021
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Structure Number: P 2,  Location: 2.1 MI.NO.NO.PAROWAN INT. (Lat: 37.882381,  Lng: -112.803947),  Route carried "on" structure: County highway 1796,  Year Built: 1973,  Status: Open,  Structure Length: 9.96m (32.68ft),  Average Daily Traffic: 1,800 (year 2020),  Average Future Daily Traffic: 2,250 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: I-15 (SR-15) NBL AND SBL,  Facility Carried by Structure: CO.RD.-BIG FIELDS
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 11.504,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 9.3m (30.5ft),  Skew: 3 degrees,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 48.6m (159.4ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.5m (34.4ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 36.3 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: 24.6 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: Equal to present minimum criteria,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Superior 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: Monolithic Concrete
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Structure Number: 1F 26,  Location: 1.5 MI.NO.SO.PAROWAN INT. (Lat: 37.848961,  Lng: -112.843222),  Route carried "on" structure: Interstate 15,  Year Built: 1973,  Status: Open,  Structure Length: 3.21m (10.53ft),  Average Daily Traffic: 21,208 (year 2020),  Truck Traffic: 37%,  Average Future Daily Traffic: 26,510 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: CO. RD. TO PAROWAN GAP
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 123.840,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.3m (40.4ft),  Skew: 13 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 30.5m (100.1ft),  Curb-To-Curb Width: 12.3m (40.4ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 37.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 26.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 3F 26,  Location: 1.5 MI.NO.SO.PAROWAN INT. (Lat: 37.849308,  Lng: -112.843211),  Route carried "on" structure: Interstate 15,  Year Built: 1973,  Status: Open,  Structure Length: 3.21m (10.53ft),  Average Daily Traffic: 21,208 (year 2020),  Truck Traffic: 37%,  Average Future Daily Traffic: 26,510 (year 2040),  Design Load: HS 20+Mod,  Features Intersected: CO. RD. TO PAROWAN GAP
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 123.885,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Highway Agency,  Approaching Roadway Width: 12.3m (40.4ft),  Skew: 13 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 30.5m (100.1ft),  Curb-To-Curb Width: 12.3m (40.4ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Operating Rating: 37.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Inventory Rating: 26.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF) rating reported by rating factor (RF) method using MS18 loading,  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Better than present minimum criteria,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2021,  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: C 537,  Location: SO.PAROWAN INTERCHANGE (Lat: 37.839517,  Lng: -112.869650),  Route carried "under" structure: Interstate 15,  Year Built: 1973,  Structure Length: 0. m,  Average Daily Traffic: 24,608 (year 2020),  Truck Traffic: 36%,  Features Intersected: I-15 (SR-15) NBL AND SBL,  Facility Carried by Structure: SR-143
Minimum Vertical Clearance: 4.95m (16.24ft),  Kilometerpoint: 120.995,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 43.6m (143.0ft)

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Structure Number: C 538,  Location: NORTH PAROWAN INTERCHANGE (Lat: 37.858197,  Lng: -112.828253),  Route carried "under" structure: Interstate 15,  Year Built: 1973,  Structure Length: 0. m,  Average Daily Traffic: 21,208 (year 2020),  Truck Traffic: 37%,  Features Intersected: I-15 (SR-15) NBL & SBL,  Facility Carried by Structure: SR-274 INT. X-ROAD
Minimum Vertical Clearance: 4.95m (16.24ft),  Kilometerpoint: 125.209,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 39.9m (130.9ft)

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Structure Number: E185,  Location: 3.2 MI.NO.SO.PAROWAN INT (Lat: 37.865147,  Lng: -112.821069),  Route carried "under" structure: County highway ,  Year Built: 1974,  Structure Length: 0. m,  Features Intersected: CO.RD.TO KANES SPRING,  Facility Carried by Structure: I-15(SR-15)NB, SB
Minimum Vertical Clearance: 3.61m (11.84ft),  Kilometerpoint: 0.000,  Lanes on structure: 4,  Lanes under structure: 1,  Material/Design: Concrete,  Design/Construction: Culvert,  Length of Maximum Span: 6.9m (22.6ft)

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Structure Number: P 2,  Location: 2.1 MI.NO.NO.PAROWAN INT. (Lat: 37.882381,  Lng: -112.803947),  Route carried "under" structure: Interstate 15,  Year Built: 1973,  Structure Length: 0. m,  Average Daily Traffic: 20,827 (year 2020),  Truck Traffic: 36%,  Features Intersected: I-15 (SR-15) NBL AND SBL,  Facility Carried by Structure: CO.RD.-BIG FIELDS
Minimum Vertical Clearance: 5.21m (17.09ft),  Kilometerpoint: 128.628,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Concrete continuous,  Design/Construction: Box Beam or Girders - Multiple,  Length of Maximum Span: 48.6m (159.4ft)

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Structure Number: 1F 26,  Location: 1.5 MI.NO.SO.PAROWAN INT. (Lat: 37.848961,  Lng: -112.843222),  Route carried "under" structure: County highway 1748,  Year Built: 1973,  Structure Length: 0. m,  Features Intersected: CO. RD. TO PAROWAN GAP,  Facility Carried by Structure: I-15 (SR-15) NBL
Minimum Vertical Clearance: 4.85m (15.91ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 30.5m (100.1ft)

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Structure Number: 3F 26,  Location: 1.5 MI.NO.SO.PAROWAN INT. (Lat: 37.849308,  Lng: -112.843211),  Route carried "under" structure: County highway 1748,  Year Built: 1973,  Structure Length: 0. m,  Features Intersected: CO. RD. TO PAROWAN GAP,  Facility Carried by Structure: I-15 (SR-15) SBL
Minimum Vertical Clearance: 4.95m (16.24ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 2,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 30.5m (100.1ft)

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