Bridge Statistics for Narragansett, Rhode Island (RI) - Condition, Traffic, Stress, Structural Evaluation, Project Costs

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Structure Number: 17,  Location: 1.0 Mi E of JCT US 1 (Lat: 41.449333,  Lng: -71.448833),  Route carried "on" structure: Alternate US 1A,  Year Built: 1981,  Status: Open,  Structure Length: 4.69m (15.39ft),  Average Daily Traffic: 9,500 (year 2006),  Truck Traffic: 10%,  Average Future Daily Traffic: 11,258 (year 2028),  Design Load: HS 20,  Features Intersected: NARROW RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Base Highway Network: Yes (,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 45.7m (149.9ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 18.3m (60.0ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 84.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 50.8 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: Better than present minimum criteria,  Length Of Structure Improvement: 4.69m (15.39ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: January 2007,  Bridge Improvement Cost: $2,874,000,  Roadway Improvement Cost: $287,000,  Total Project Cost: $4,311,000 ( Estimate for 2007),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: 344,  Location: 0.5 Mi W of JCT US 1A (Lat: 41.491667,  Lng: -71.446167),  Route carried "on" structure: State highway ,  Year Built: 1934,  Status: Open,  Structure Length: 1.65m (5.41ft),  Average Daily Traffic: 9,800 (year 2006),  Truck Traffic: 10%,  Average Future Daily Traffic: 15,194 (year 2028),  Design Load: H 20,  Features Intersected: PETTAQUAMSCUTT RIVER,  Facility Carried by Structure: BRIDGETOWN RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Skew: 1 degrees,  Material/Design: Concrete continuous,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 12.2m (40.0ft),  Out-to-Out Width: 13.4m (44.0ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Good,  Operating Rating: 44.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 26.1 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 minimum criteria,  Length Of Structure Improvement: 1.62m (5.31ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: Febuary 2007,  Underwater Inspection Date: May 2003,  Bridge Improvement Cost: $625,000,  Roadway Improvement Cost: $63,000,  Total Project Cost: $938,000 ( Estimate for 2007),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: 481,  Location: 0.1 Mi N of Scenic 1A (Lat: 41.435667,  Lng: -71.482000),  Route carried "on" structure: US 1,  Year Built: 1962,  Status: Temporarily open,  Structure Length: 5.09m (16.70ft),  Average Daily Traffic: 13,000 (year 2006),  Truck Traffic: 10%,  Design Load: HS 20+Mod,  Features Intersected: RI 108 KING RD&PT JDH RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 5 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 29.3m (96.1ft),  Curb or Sidewalk Widths: Left: 0.0m,  Right: 0.6m (2.0ft),  Curb-To-Curb Width: 11.4m (37.4ft),  Out-to-Out Width: 12.8m (42.0ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Poor,  Operating Rating: 63.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 37.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 5.58m (18.31ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2007,  Bridge Improvement Cost: $1,463,000,  Roadway Improvement Cost: $146,000,  Total Project Cost: $2,194,000 ( Estimate for 2007),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: 4812,  Location: 0.1 Mi N of Scenic 1A (Lat: 41.435667,  Lng: -71.482333),  Route carried "on" structure: US 1,  Year Built: 1962,  Status: Temporarily open,  Structure Length: 5.09m (16.70ft),  Average Daily Traffic: 12,700 (year 2006),  Truck Traffic: 10%,  Design Load: HS 20+Mod,  Features Intersected: RI 108 KING.RD&PT JDH RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Base Highway Network: Yes (,  Subroute: 1),  Owner: State Highway Agency,  Approaching Roadway Width: 11.6m (38.1ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 27.6m (90.6ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.0m,  Curb-To-Curb Width: 11.4m (37.4ft),  Out-to-Out Width: 12.8m (42.0ft)

Condition: Deck: Fair,  Superstructure: Poor,  Substructure: Poor,  Operating Rating: 55.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 33.3 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Better than present minimum criteria,  Length Of Structure Improvement: 4.18m (13.71ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2007,  Bridge Improvement Cost: $1,698,000,  Roadway Improvement Cost: $170,000,  Total Project Cost: $2,547,000 ( Estimate for 2007),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: 482,  Location: 0.3 Mi W of JCT 1A (Lat: 41.432167,  Lng: -71.481500),  Route carried "on" structure: Ramp US 1,  Year Built: 1963,  Status: Temporarily open,  Structure Length: 4.57m (14.99ft),  Average Daily Traffic: 7,900 (year 2006),  Truck Traffic: 10%,  Average Future Daily Traffic: 9,000 (year 2028),  Design Load: HS 20+Mod,  Features Intersected: RI 108 POINT JUDITH RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 6.7m (22.0ft),  Skew: 4 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Number Of Approach Spans: 2,  Length of Maximum Span: 22.6m (74.1ft),  Curb or Sidewalk Widths: Left: 0.6m (2.0ft),  Right: 0.6m (2.0ft),  Curb-To-Curb Width: 6.7m (22.0ft),  Out-to-Out Width: 8.5m (27.9ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Poor,  Operating Rating: 65.7 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 39.6 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Meets minimum limits,  Deck Geometry: High priority of replacement,  Underclear: High priority of corrective action,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 4.66m (15.29ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: March 2007,  Bridge Improvement Cost: $2,535,000,  Roadway Improvement Cost: $254,000,  Total Project Cost: $3,803,000 ( Estimate for 2007),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Built-up

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Structure Number: 483,  Location: 0.1 Mi N of JCT RI 108 (Lat: 41.431333,  Lng: -71.484167),  Route carried "on" structure: Alternate County highway ,  Year Built: 1963,  Status: Open,  Structure Length: 5.82m (19.09ft),  Average Daily Traffic: 7,900 (year 1992),  Truck Traffic: 10%,  Design Load: HS 20+Mod,  Features Intersected: US 1 POST RD,  Facility Carried by Structure: WOODRUFF AV
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Owner: State Highway Agency,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 3 degrees,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Number Of Approach Spans: 2,  Length of Maximum Span: 18.6m (61.0ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 1.8m (5.9ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 17.7m (58.1ft)

Condition: Deck: Good,  Superstructure: Satisfactory,  Substructure: Fair,  Operating Rating: 67.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 40.5 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: High priority of corrective action,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 5.73m (18.80ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: Febuary 2007,  Bridge Improvement Cost: $194,000,  Roadway Improvement Cost: $19,000,  Total Project Cost: $291,000 ( Estimate for 2007),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous

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Structure Number: 499,  Location: 0.1 Mi N of Galilee Rd (Lat: 41.381500,  Lng: -71.506333),  Route carried "on" structure: City street ,  Year Built: 1959,  Status: Posted for load,  Structure Length: 5.49m (18.01ft),  Average Daily Traffic: 1,700 (year 2006),  Truck Traffic: 10%,  Average Future Daily Traffic: 2,481 (year 2028),  Design Load: H 15,  Features Intersected: TIDAL FLATS (INLET),  Facility Carried by Structure: GREAT ISLAND RD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 8.5m (27.9ft),  Skew: 2 degrees,  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 9,  Length of Maximum Span: 9.1m (29.9ft),  Curb or Sidewalk Widths: Left: 1.8m (5.9ft),  Right: 0.0m,  Curb-To-Curb Width: 8.5m (27.9ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Fair,  Superstructure: Fair,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 22.5 metric tons,  Method Used To Determine Operating Rating: Allowable Stress (AS),  Inventory Rating: 16.2 metric tons,  Method Used To Determine Inventory Rating: Allowable Stress (AS),  Structural Evaluation: Meets minimum limits,  Deck Geometry: Somewhat better than minimum adequacy,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: 10.0 - 19.9% below),  Length Of Structure Improvement: 5.49m (18.01ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Other Special Inspection Frequency: Every 12 months,  Inspection Date: January 2008,  Underwater Inspection Date: May 1996,  Other Special Inspection Date: January 2008,  Bridge Improvement Cost: $1,806,000,  Roadway Improvement Cost: $181,000,  Total Project Cost: $2,709,000 ( Estimate for 2007),  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Bituminous

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Structure Number: 481,  Location: 0.1 Mi N of Scenic 1A (Lat: 41.435667,  Lng: -71.482000),  Route carried "under" structure: Alternate State highway 108,  Year Built: 1962,  Structure Length: 5.09m (16.70ft),  Average Daily Traffic: 6,500 (year 2006),  Truck Traffic: 10%,  Features Intersected: RI 108 KING RD&PT JDH RD,  Facility Carried by Structure: US 1 NB POST RD
Minimum Vertical Clearance: 4.36m (14.30ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 29.3m (96.1ft)

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Structure Number: 4812,  Location: 0.1 Mi N of Scenic 1A (Lat: 41.435667,  Lng: -71.482333),  Route carried "under" structure: Alternate State highway 108,  Year Built: 1962,  Structure Length: 5.09m (16.70ft),  Average Daily Traffic: 6,500 (year 2006),  Truck Traffic: 10%,  Features Intersected: RI 108 KING.RD&PT JDH RD,  Facility Carried by Structure: US 1 SB POST RD
Minimum Vertical Clearance: 4.39m (14.40ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 27.6m (90.6ft)

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Structure Number: 482,  Location: 0.3 Mi W of JCT 1A (Lat: 41.432167,  Lng: -71.481500),  Route carried "under" structure: State highway 108,  Year Built: 1963,  Structure Length: 4.57m (14.99ft),  Average Daily Traffic: 10,000 (year 2006),  Truck Traffic: 10%,  Features Intersected: RI 108 POINT JUDITH RD,  Facility Carried by Structure: US 1 POST RD RAMP
Minimum Vertical Clearance: 4.29m (14.07ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 22.6m (74.1ft)

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Structure Number: 483,  Location: 0.1 Mi N of JCT RI 108 (Lat: 41.431333,  Lng: -71.484167),  Route carried "under" structure: US 1,  Year Built: 1963,  Structure Length: 5.82m (19.09ft),  Average Daily Traffic: 10,000 (year 2006),  Truck Traffic: 10%,  Features Intersected: US 1 POST RD,  Facility Carried by Structure: WOODRUFF AV
Minimum Vertical Clearance: 4.34m (14.24ft),  Kilometerpoint: 0.000,  Lanes on structure: 2,  Lanes under structure: 4,  Material/Design: Prestressed concrete,  Design/Construction: Stringer/Multi-beam,  Length of Maximum Span: 18.6m (61.0ft)