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Bridge Statistics for Milton, New Hampshire (NH)
Condition, Traffic, Stress, Structural Evaluation, Project Costs


  • National Bridge Inventory (NBI) Statistics
  • 18Number of bridges
  • 174ft / 52.7mTotal length
  • $56,556,000Total costs
  • 203,323Total average daily traffic
  • 15,438Total average daily truck traffic
  • 300,906Total future (year 2042) average daily traffic
  • National Bridge Inventory (NBI) Registered Bridges for Milton
  • No street view available for this location

New bridges in Milton, NH - historical statistics
  • New bridges - historical statistics
  • 11920-1929
  • 21930-1939
  • 11940-1949
  • 31950-1959
  • 11960-1969
  • 21970-1979
  • 81980-1989
Reconstructed bridges in Milton, NH - Historical Statistics
  • Reconstructed bridges - Historical Statistics
  • 11960-1969
  • 11970-1979
  • 01980-1989
  • 21990-1999
  • 12000-2009
  • 12010-2019
Average Bridge Daily Traffic in Milton, NH
Bridge Condition - Deck
  • Bridge Condition - Deck
  • 12.5%Very good
  • 56.3%Good
  • 25.0%Satisfactory
  • 6.3%Failed
Bridge Condition - Superstructure
  • Bridge Condition - Superstructure
  • 12.5%Very good
  • 62.5%Good
  • 18.8%Satisfactory
  • 6.3%Failed
Bridge Condition - Substructure
  • Bridge Condition - Substructure
  • 18.8%Very good
  • 56.3%Good
  • 6.3%Satisfactory
  • 12.5%Fair
  • 6.3%Failed
Bridge Condition - Channel
  • Bridge Condition - Channel
  • 25.0%Very good
  • 25.0%Good
  • 50.0%Satisfactory
Bridge Condition - Culverts
  • Bridge Condition - Culverts
  • 50.0%Good
  • 50.0%Fair
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Structure Number: 27015800137,  Location: 1.7 MI JCT I-89 (Lat: 43.154061,  Lng: -71.507103),  Route carried "on" structure: Interstate 93,  Year Built: 1957,  Year Reconstructed: 1978,  Status: Open,  Structure Length: 0.91m (2.99ft),  Average Daily Traffic: 64,791 (year 2020),  Truck Traffic: 9%,  Average Future Daily Traffic: 95,890 (year 2042),  Design Load: HS 20,  Features Intersected: DOW ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 56.052,  Lanes on structure: 6,  Lanes under structure: 2,  Base Highway Network: Yes,  Toll: On toll road,  Owner: State Toll Authority,  Approaching Roadway Width: 39.0m (128.0ft),  Skew: 30 degrees,  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 9.1m (29.9ft)

Condition: Culverts: Fair,  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: Somewhat better than minimum adequacy,  Underclear: High priority of replacement,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 0.91m (2.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: April 2020,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022)
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Structure Number: 173008100159,  Location: NH.-ME. SL (Lat: 43.497914,  Lng: -70.961564),  Route carried "on" structure: Other road ,  Year Built: 1920,  Year Reconstructed: 1998,  Status: Open,  Structure Length: 0.99m (3.25ft),  Average Daily Traffic: 608 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 899 (year 2042),  Design Load: HS 25 or greater,  Features Intersected: SALMON FALLS RIVER,  Facility Carried by Structure: LEBANON STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.248,  Lanes on structure: 2,  Owner: City or Municipal 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: 8.2m (26.9ft),  Curb-To-Curb Width: 7.5m (24.6ft),  Out-to-Out Width: 9.9m (32.5ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Fair,  Channel: Satisfactory,  Operating Rating: 70.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 42.3 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: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 0.99m (3.25ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 173009800115,  Location: 0.8 MI S. OF WAKEFIELD TL (Lat: 43.481942,  Lng: -71.005492),  Route carried "on" structure: State highway 16,  Year Built: 1981,  Status: Open,  Structure Length: 5.01m (16.44ft),  Average Daily Traffic: 12,708 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 18,807 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: BRANCH RIVER
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 53.411,  Lanes on structure: 3,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 15.2m (49.9ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 24.4m (80.1ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 16.6m (54.5ft),  Out-to-Out Width: 17.9m (58.7ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 48.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 28.9 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Equal to present desirable criteria,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 5.01m (16.44ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 17301010011,  Location: 0.65 MI. S. WAKEFIELD TL (Lat: 43.481578,  Lng: -71.010508),  Route carried "on" structure: State highway ,  Year Built: 1932,  Status: Open,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 895 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 1,324 (year 2042),  Design Load: H 15,  Features Intersected: JONES BROOK,  Facility Carried by Structure: NH125
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 81.236,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 7.3m (24.0ft),  Skew: 2 degrees,  Material/Design: Concrete,  Design/Construction: Frame,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.3m (24.0ft),  Curb-To-Curb Width: 7.3m (24.0ft),  Out-to-Out Width: 8.4m (27.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 41.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 24.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Meets minimum limits,  Waterway Adequacy: Equal to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Length Of Structure Improvement: 0.85m (2.79ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 17301020012,  Location: 370' FROM INT OF NH 125 (Lat: 43.480392,  Lng: -70.998808),  Route carried "on" structure: State highway ,  Year Built: 1966,  Status: Open,  Structure Length: 3.93m (12.89ft),  Average Daily Traffic: 2,346 (year 2020),  Truck Traffic: 10%,  Average Future Daily Traffic: 3,472 (year 2042),  Design Load: HS 20,  Features Intersected: BRANCH RIVER,  Facility Carried by Structure: APPLEBEE ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.119,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 12.2m (40.0ft),  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 18.9m (62.0ft),  Curb or Sidewalk Widths: Left: 0.5m (1.6ft),  Right: 0.5m (1.6ft),  Curb-To-Curb Width: 13.4m (44.0ft),  Out-to-Out Width: 15.2m (49.9ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Channel: Satisfactory,  Operating Rating: 44.7 metric tons,  Method Used To Determine Operating Rating: Field evaluation and documented engineering judgment,  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Field evaluation and documented engineering judgment,  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: 3.93m (12.89ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 173011400115,  Location: 7.8 MI N OF ROCHESTER TL (Lat: 43.480683,  Lng: -71.004947),  Route carried "on" structure: State highway 16,  Year Built: 1981,  Status: Open,  Structure Length: 3.51m (11.52ft),  Average Daily Traffic: 13,135 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 19,439 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: NH125
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 53.258,  Lanes on structure: 4,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 22.6m (74.1ft),  Skew: 2 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 33.5m (109.9ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 23.0m (75.5ft),  Out-to-Out Width: 24.2m (79.4ft)

Condition: Deck: Satisfactory,  Superstructure: Good,  Substructure: Good,  Operating Rating: 44.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.7 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Deck Geometry: Superior to present desirable criteria,  Underclear: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 3.51m (11.52ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 173012400116,  Location: 6.6 MI N OF ROCHESTER TL (Lat: 43.464711,  Lng: -70.997406),  Route carried "on" structure: State highway 16,  Year Built: 1980,  Status: Open,  Structure Length: 1.01m (3.31ft),  Average Daily Traffic: 12,708 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 18,807 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: JONES ACCESS ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 51.382,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 13.4m (44.0ft),  Material/Design: Concrete,  Design/Construction: Culvert,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 8.5m (27.9ft),  Out-to-Out Width: 19.8m (65.0ft)

Condition: Culverts: Good,  Operating Rating: 89.8 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 89.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Better than present minimum criteria,  Underclear: High priority of replacement,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.01m (3.31ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place
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Structure Number: 173014100122,  Location: 5.7 MI N OF ROCHESTER TL (Lat: 43.451025,  Lng: -70.995458),  Route carried "on" structure: Other road 16,  Year Built: 1980,  Status: Open,  Structure Length: 1.89m (6.20ft),  Average Daily Traffic: 12,708 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 18,807 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: NHNCRR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 49.803,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 13.4m (44.0ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 17.4m (57.1ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 14.2m (46.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 53.5 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.0 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,  Underclear: High priority of replacement,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 1.89m (6.20ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 17301620011,  Location: 4.6 MI N OF ROCHESTER TL (Lat: 43.438219,  Lng: -71.006764),  Route carried "on" structure: Other road 16,  Year Built: 1980,  Status: Open,  Structure Length: 2.23m (7.32ft),  Average Daily Traffic: 12,708 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 18,807 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: TENERIFFE ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 48.098,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 1 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 20.7m (67.9ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 14.8m (48.6ft),  Out-to-Out Width: 16.1m (52.8ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 54.2 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.5 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,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.23m (7.32ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 173016800152,  Location: NH-ME SL (Lat: 43.435461,  Lng: -70.966611),  Route carried "on" structure: Other road ,  Year Built: 1948,  Status: Closed,  Structure Length: 2.87m (9.42ft),  Average Daily Traffic: 452 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 668 (year 2042),  Design Load: H 15,  Features Intersected: NORTHEAST POND,  Facility Carried by Structure: TOWNHOUSE ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 1.773,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 5.2m (17.1ft),  Material/Design: Wood or Timber,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 4,  Length of Maximum Span: 6.7m (22.0ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 1.2m (3.9ft),  Curb-To-Curb Width: 6.1m (20.0ft),  Out-to-Out Width: 8.0m (26.2ft)

Condition: Deck: Failed,  Superstructure: Failed,  Substructure: Failed,  Channel: Very good,  Deck Geometry: High priority of corrective action,  Waterway Adequacy: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present minimum criteria,  Bridge Posting: Required (Relationship of Operating Rating to Maximum Legal Load: > 39.9% below),  Length Of Structure Improvement: 2.87m (9.42ft),  Designated Inspection Frequency: Every 16 months,  Inspection Date: August 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Wood or Timber,  Wearing Surface/Protective System: Wearing Surface: Wood or Timber
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Structure Number: 173018700109,  Location: 3.5 MI N OF ROCHESTER TL (Lat: 43.422736,  Lng: -71.009275),  Route carried "on" structure: Other road 16,  Year Built: 1980,  Status: Open,  Structure Length: 2.80m (9.19ft),  Average Daily Traffic: 12,708 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 18,807 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: SILVER STREET
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 46.351,  Lanes on structure: 3,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 15.2m (49.9ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 26.5m (86.9ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 14.8m (48.6ft),  Out-to-Out Width: 16.1m (52.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Operating Rating: 53.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.0 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,  Underclear: Meets minimum limits,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.80m (9.19ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 173019800131,  Location: NH-ME SL (Lat: 43.413828,  Lng: -70.986983),  Route carried "on" structure: Other road ,  Year Built: 1950,  Year Reconstructed: 2004,  Status: Open,  Structure Length: 3.17m (10.40ft),  Average Daily Traffic: 2,061 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 3,050 (year 2042),  Features Intersected: SALMON FALLS RIVER,  Facility Carried by Structure: GARAGE WAY
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 0.048,  Lanes on structure: 2,  Owner: City or Municipal Highway Agency,  Approaching Roadway Width: 5.8m (19.0ft),  Material/Design: Prestressed concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 2,  Length of Maximum Span: 12.2m (40.0ft),  Curb-To-Curb Width: 6.9m (22.6ft),  Out-to-Out Width: 7.9m (25.9ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Fair,  Channel: Good,  Operating Rating: 64.8 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: High priority of replacement,  Waterway Adequacy: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 3.17m (10.40ft),  Designated Inspection Frequency: Every 24 months,  Underwater Inspection Frequency: Every 60 months,  Inspection Date: August 2021,  Underwater Inspection Date: July 2018,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric
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Structure Number: 173021200128,  Location: 1.9 MI FROM ROCHESTER TL (Lat: 43.404228,  Lng: -70.989167),  Route carried "on" structure: State highway 16,  Year Built: 1954,  Year Reconstructed: 2011,  Status: Open,  Structure Length: 4.60m (15.09ft),  Average Daily Traffic: 6,495 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 9,612 (year 2042),  Design Load: HL 93,  Features Intersected: NHNCRR,  Facility Carried by Structure: NH125
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 71.448,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 10.4m (34.1ft),  Skew: 5 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 16.5m (54.1ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 9.3m (30.5ft),  Out-to-Out Width: 10.5m (34.4ft)

Condition: Deck: Very good,  Superstructure: Very good,  Substructure: Very good,  Operating Rating: 69.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 41.8 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present desirable criteria,  Deck Geometry: High priority of corrective action,  Underclear: High priority of replacement,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.60m (15.09ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Preformed Fabric,  Deck Protection: Epoxy Coated Reinforcing
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Structure Number: 173021600112,  Location: 2.1 MI N OF ROCHESTER TL (Lat: 43.402483,  Lng: -71.005339),  Route carried "on" structure: Other road 16,  Year Built: 1980,  Year Reconstructed: 2016,  Status: Open,  Structure Length: 4.27m (14.01ft),  Average Daily Traffic: 12,708 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 18,807 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: NH 75
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 44.069,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 4 degrees,  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 41.1m (134.8ft),  Curb or Sidewalk Widths: Left: 0.3m (1.0ft),  Right: 0.3m (1.0ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 14.2m (46.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 54.1 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.5 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,  Underclear: Better than present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 4.27m (14.01ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 173021900112,  Location: 1.8 MI N OF ROCHESTER TL (Lat: 43.398114,  Lng: -71.003558),  Route carried "on" structure: State highway 16,  Year Built: 1980,  Status: Open,  Structure Length: 9.51m (31.20ft),  Average Daily Traffic: 14,399 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 21,310 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: LYMAN BROOK
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 43.573,  Lanes on structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 12.8m (42.0ft),  Skew: 6 degrees,  Material/Design: Steel continuous,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 3,  Length of Maximum Span: 36.6m (120.1ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 15.8m (51.8ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Very good,  Channel: Very good,  Operating Rating: 50.9 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 30.5 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: Superior to present desirable criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 9.51m (31.20ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 173021900124,  Location: 2.7 MI N OF FARMINGTON TL (Lat: 43.396514,  Lng: -70.994097),  Route carried "on" structure: State highway 75,  Year Built: 1978,  Status: Open,  Structure Length: 2.13m (6.99ft),  Average Daily Traffic: 3,072 (year 2020),  Truck Traffic: 4%,  Average Future Daily Traffic: 4,546 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: NHNCRR
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 8.425,  Lanes on structure: 2,  Owner: State Toll Authority,  Approaching Roadway Width: 11.6m (38.1ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 19.8m (65.0ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 14.2m (46.6ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Good,  Operating Rating: 53.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 32.0 metric tons,  Method Used To Determine Inventory Rating: Load Factor (LF),  Structural Evaluation: Equal to present minimum criteria,  Deck Geometry: Equal to present minimum criteria,  Underclear: High priority of replacement,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.13m (6.99ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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Structure Number: 173022900125,  Location: 1.0 MI ROCHESTER TL (Lat: 43.390744,  Lng: -70.990725),  Route carried "on" structure: State highway 16,  Year Built: 1935,  Year Reconstructed: 1973,  Status: Open,  Structure Length: 0.85m (2.79ft),  Average Daily Traffic: 4,422 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 6,544 (year 2042),  Design Load: H 15,  Features Intersected: LYMAN BROOK,  Facility Carried by Structure: NH125
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 69.924,  Lanes on structure: 2,  Owner: State Highway Agency,  Approaching Roadway Width: 9.1m (29.9ft),  Skew: 3 degrees,  Material/Design: Concrete,  Design/Construction: Slab,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 7.0m (23.0ft),  Curb or Sidewalk Widths: Left: 0.3m (1.0ft),  Right: 0.3m (1.0ft),  Curb-To-Curb Width: 10.5m (34.4ft),  Out-to-Out Width: 11.0m (36.1ft)

Condition: Deck: Satisfactory,  Superstructure: Satisfactory,  Substructure: Satisfactory,  Channel: Good,  Operating Rating: 82.0 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 58.6 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 desirable criteria,  Length Of Structure Improvement: 0.85m (2.79ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous
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Structure Number: 173023700126,  Location: 0.9 MI N OF ROCHESTER TL (Lat: 43.385533,  Lng: -70.998083),  Route carried "on" structure: Other road 16,  Year Built: 1978,  Status: Open,  Structure Length: 2.19m (7.19ft),  Average Daily Traffic: 14,399 (year 2020),  Truck Traffic: 7%,  Average Future Daily Traffic: 21,310 (year 2042),  Design Load: HS 20+Mod,  Features Intersected: MCKEAGHNEY ROAD
Minimum Vertical Clearance: 30+ m (98+ ft),  Kilometerpoint: 42.092,  Lanes on structure: 2,  Lanes under structure: 2,  Base Highway Network: Yes,  Owner: State Toll Authority,  Approaching Roadway Width: 13.1m (43.0ft),  Material/Design: Steel,  Design/Construction: Stringer/Multi-beam,  Number Of Spans In Main Unit: 1,  Length of Maximum Span: 19.8m (65.0ft),  Curb or Sidewalk Widths: Left: 0.2m (0.7ft),  Right: 0.2m (0.7ft),  Curb-To-Curb Width: 13.0m (42.7ft),  Out-to-Out Width: 14.2m (46.6ft)

Condition: Deck: Good,  Superstructure: Good,  Substructure: Good,  Operating Rating: 52.4 metric tons,  Method Used To Determine Operating Rating: Load Factor (LF),  Inventory Rating: 31.4 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,  Underclear: Equal to present minimum criteria,  Approach Roadway Alignment: Equal to present desirable criteria,  Length Of Structure Improvement: 2.19m (7.19ft),  Designated Inspection Frequency: Every 24 months,  Inspection Date: June 2021,  Bridge Improvement Cost: $2,718,000,  Roadway Improvement Cost: $200,000,  Total Project Cost: $3,142,000 ( Estimate for 2022),  Deck Structure Type: Concrete Cast-file-Place,  Wearing Surface/Protective System: Wearing Surface: Bituminous,  Membrane: Other
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