HistoricBridges.org Bridge Locator

Nearby Bridges in NBI 2021: 40

HWY LAND BLVD over WATER LECHMERE CANAL (Route: 3)
Num:C010013F1DOTNBIx
Open: no restriction [A]
Built: 1986, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 39.9 m = 130.9 ft
Main Spans: 3 at 13.4 m = 44.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.7 m = 44.9 ft (6 Lanes) and Out-To-Out: 18.5 m = 60.7 ft for a 13.7 m = 44.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 2.1 m = 6.9 ft

Location
Cambridge [11000]: Middlesex County [017], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
500 FT W OF JCT SR 28

Condition
Deck: Fair [5]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 60.3 metric ton = 66.3 tons (Allowable Stress(AS) [2])
Inventory: 38.4 metric ton = 42.2 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: March 2020 [0320] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge with deck rehabilitation or replacement. [34]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 53793 (2018) and Trucks: 4%
Future ADT: 63646 (In 2031 )

ST 28 CHAS R DM RD over WATER CHARLES RIVER (Route: 3)
Num:B160134ETDOTNBIx
Open: no restriction [A]
Built: 1906, Reconstructed: 2011
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.1 Miles (0.2 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 35.4 m = 116.1 ft
Main Spans: 10 at 5.5 m = 18.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 19.8 m = 65.0 ft (6 Lanes) and Out-To-Out: 26.2 m = 86.0 ft for a 20.1 m = 65.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.2 MI NW OF NASHUA ST

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Poor [4]
Loading
Design:
Operating: 60.6 metric ton = 66.7 tons (Load Factor(LF) [1])
Inventory: 36.3 metric ton = 39.9 tons (Load Factor(LF) [1])

Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: February 2020 [0220] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 61200 (2020) and Trucks: 4%
Future ADT: 78175 (In 2031 )

US 1 RAMP S-TB over OTHER RELIEF (Route: 93)
Num:B166118XYDOTNBIx
Open: no restriction [A]
Built: 2001, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 177.4 m = 582.0 ft
Main Spans: 4 at 51.5 m = 169.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 6.9 m = 22.6 ft (1 Lanes) and Out-To-Out: 7.4 m = 24.3 ft for a 7.8 m = 25.6 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I 93 US RT 1 INTERCHANG

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 90.1 metric ton = 99.1 tons (Load Factor(LF) [1])
Inventory: 41.2 metric ton = 45.3 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 1999 [899] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 21100 (2016) and Trucks: 6%
Future ADT: 0 (In 2032 )

ST 28 CHAS R DM RD over WATER CHARLES RIVER (Route: 28)
Num:B160134EMDOTNBIx
Open: no restriction [A]
Built: 1910, Reconstructed: 2011
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Closed Grating [4] with Wearing Surface: Other [9]

Bridge Dimensions
Length: 27.7 m = 90.9 ft
Main Spans: 1 at 19.2 m = 63.0 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 18.4 m = 60.4 ft (5 Lanes) and Out-To-Out: 25.7 m = 84.3 ft for a 18.4 m = 60.4 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 4.6 m = 15.1 ft

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.1 MI NW OF NASHUA ST

Condition
Deck: Very Good [8]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 68.8 metric ton = 75.7 tons (Load Factor(LF) [1])
Inventory: 49.7 metric ton = 54.7 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: December 1999 [1299] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 43250 (2017) and Trucks: 4%
Future ADT: 69489 (In 2032 )

US 1 RAMP CT over OTHER RELIEF (Route: 93)
Num:B166108YDDOTNBIx
Open: no restriction [A]
Built: 2001, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 158.8 m = 521.0 ft
Main Spans: 4 at 44.2 m = 145.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11.5 m = 37.7 ft (2 Lanes) and Out-To-Out: 12.1 m = 39.7 ft for a 11.5 m = 37.7 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 86.4 metric ton = 95.0 tons (Load Factor(LF) [1])
Inventory: 51.5 metric ton = 56.7 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 1999 [899] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 20600 (2017) and Trucks: 8%
Future ADT: 275793 (In 2032 )

US 1 RAMP TC over OTHER RELIEF (Route: 93)
Num:B163928QGDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 103.6 m = 339.9 ft
Main Spans: 3 at 37.8 m = 124.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 4.95 m = 16.2 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 84.2 metric ton = 92.6 tons (Load Factor(LF) [1])
Inventory: 48.6 metric ton = 53.5 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 1999 [899] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 60300 (2017) and Trucks: 6%
Future ADT: 275793 (In 2032 )

HWY AUSTIN ST over COMB I 93 RMP&MBTA&ORNG (Route: 0)
Num:B161794F6DOTNBIx
Open: would be posted or closed except for temporary shoring [D]
Built: 1974, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.5 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 556.3 m = 1825.2 ft
Main Spans: 1 at 45.7 m = 149.9 ft
Approach Spans: 23
Skew: 99
Width, Roadway: 15.2 m = 49.9 ft (4 Lanes) and Out-To-Out: 18.3 m = 60.0 ft for a 19.8 m = 65.0 ft approaching roadway.
Vertical Clearance: 4.42 m = 14.5 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.1 M. W OF RUTHERFORD ST

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Poor [4]
Loading
Design: M 18 / H 20 [4]
Operating: 29.9 metric ton = 32.9 tons (Load Factor(LF) [1])
Inventory: 21.9 metric ton = 24.1 tons (Load Factor(LF) [1])

Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: June 1999 [699] and Frequency: 12

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 36700 (2017) and Trucks: 13%
Future ADT: 61909 (In 2032 )

US 1 RAMP CT over OTHER RELIEF (Route: 93)
Num:B166108YCDOTNBIx
Open: no restriction [A]
Built: 2001, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 137.2 m = 450.2 ft
Main Spans: 3 at 48.8 m = 160.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 11.8 m = 38.7 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 5.1 m = 16.7 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 1999 [899] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 41700 (2017) and Trucks: 8%
Future ADT: 275793 (In 2032 )

US 1 RAMP TC over RR MBTA (Route: 1)
Num:B1639282FDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 118 m = 387.2 ft
Main Spans: 3 at 46.6 m = 152.9 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 79.4 metric ton = 87.3 tons (Allowable Stress(AS) [2])
Inventory: 44.1 metric ton = 48.5 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 56700 (2016) and Trucks: 7%
Future ADT: 349025 (In 2031 )

US 1 RAMP CT over COMB I93 SB &RMPS& MBTA (Route: 93)
Num:B166108YFDOTNBIx
Open: no restriction [A]
Built: 2001, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 209.8 m = 688.4 ft
Main Spans: 5 at 59.7 m = 195.9 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 12.1 m = 39.7 ft for a 10.9 m = 35.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 77.8 metric ton = 85.6 tons (Load Factor(LF) [1])
Inventory: 46.4 metric ton = 51.0 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 78400 (2016) and Trucks: 8%
Future ADT: 32534 (In 2031 )

I 93 RAMPS NS SN over OTHER RELIEF (Route: 93)
Num:B165769EKDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 30.1 m = 98.8 ft
Main Spans: 1 at 29 m = 95.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.4 m = 44.0 ft (2 Lanes) and Out-To-Out: 15.2 m = 49.9 ft for a 13.4 m = 44.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93 RAMPS N-S S-N

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 89.7 metric ton = 98.7 tons (Load Factor(LF) [1])
Inventory: 47.4 metric ton = 52.1 tons (Load Factor(LF) [1])

Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 42993 (2018) and Trucks: 9%
Future ADT: 31586 (In 2032 )

I 93 RAMPS SN NS over RR BMRR BSG SPUR (Route: 93)
Num:B166059UADOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 260 m = 853.1 ft
Main Spans: 6 at 44.8 m = 147.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.4 m = 44.0 ft (2 Lanes) and Out-To-Out: 15.2 m = 49.9 ft for a 13.4 m = 44.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 92.9 metric ton = 102.2 tons (Load Factor(LF) [1])
Inventory: 55.6 metric ton = 61.2 tons (Load Factor(LF) [1])

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 37301 (2016) and Trucks: 2%
Future ADT: 55118 (In 2031 )

I 93 RAMP SN over OTHER RELIEF (Route: 93)
Num:B165758YJDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 38.1 m = 125.0 ft
Main Spans: 10 at 4 m = 13.1 ft
Approach Spans: 0
Skew: 1
Width, Roadway: 6.7 m = 22.0 ft (1 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93 RAMP SN

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 73.4 metric ton = 80.7 tons (Load Factor(LF) [1])
Inventory: 42.6 metric ton = 46.9 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 13100 (2018) and Trucks: 4%
Future ADT: 0 (In 2031 )

ST 28 LEVERETT CIR over HWY EMBANKMENT RD WB (Route: 3)
Num:B164584EDDOTNBIx
Open: no restriction [A]
Built: 1952, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Frame [07]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 10.7 m = 35.1 ft
Main Spans: 1 at 10.4 m = 34.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.8 m = 32.2 ft (7 Lanes) and Out-To-Out: 11.9 m = 39.0 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 4.32 m = 14.2 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.16 KM N OF BLOSSOM ST

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design:
Operating: 32.4 metric ton = 35.6 tons (Load Factor(LF) [1])
Inventory: 19.4 metric ton = 21.3 tons (Load Factor(LF) [1])

Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: November 1999 [1199] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 65700 (2019) and Trucks: 6%
Future ADT: 78965 (In 2032 )

I 93 SB BT 33-38 over TR ORANGE LINE (Route: 93)
Num:B162813EADOTNBIx
Open: no restriction [A]
Built: 1970, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 124 m = 406.8 ft
Main Spans: 5 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 18.9 m = 62.0 ft (3 Lanes) and Out-To-Out: 21 m = 68.9 ft for a 18.9 m = 62.0 ft approaching roadway.
Vertical Clearance: 4.52 m = 14.8 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.6 MI N OF JCT I93&US1

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 49.6 metric ton = 54.6 tons (Load Factor(LF) [1])
Inventory: 29.7 metric ton = 32.7 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 2020 [0720] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 87100 (2016) and Trucks: 6%
Future ADT: 108498 (In 2031 )

I 93 NB BT 33-38 over I 93 SB BT 33-38 (Route: 93)
Num:B162813DUDOTNBIx
Open: no restriction [A]
Built: 1970, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 123.7 m = 405.9 ft
Main Spans: 5 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 18.9 m = 62.0 ft (3 Lanes) and Out-To-Out: 21 m = 68.9 ft for a 18.9 m = 62.0 ft approaching roadway.
Vertical Clearance: 5.33 m = 17.5 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.6 MI N OF JCT I93&US1

Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 49.7 metric ton = 54.7 tons (Load Factor(LF) [1])
Inventory: 29.8 metric ton = 32.8 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: February 2020 [0220] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 81000 (2020) and Trucks: 8%
Future ADT: 152245 (In 2031 )

I 93 SB over COMB AUSTIN ST &ORNG LN (Route: 93)
Num:B166018YVDOTNBIx
Open: no restriction [A]
Built: 2003, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Dimensions
Length: 162.5 m = 533.2 ft
Main Spans: 4 at 45.1 m = 148.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 18.9 m = 62.0 ft (3 Lanes) and Out-To-Out: 20.1 m = 65.9 ft for a 18.9 m = 62.0 ft approaching roadway.
Vertical Clearance: 4.45 m = 14.6 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 89.9 metric ton = 98.9 tons (Allowable Stress(AS) [2])
Inventory: 59.3 metric ton = 65.2 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 53019 (2015) and Trucks: 9%
Future ADT: 113826 (In 2031 )

HWY EMBKT WB OFF over HWY EMBKNT EB&WB ON RP (Route: 1)
Num:B162574FMDOTNBIx
Posted for other load-capacity restriction [R]
Built: 1951, Reconstructed: 1996
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 151.2 m = 496.1 ft
Main Spans: 7 at 33.5 m = 109.9 ft
Approach Spans: 0
Skew: 16
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 9.8 m = 32.2 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
CHARLES CIRCLE STORROW D

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 21.4 metric ton = 23.5 tons (Load Factor(LF) [1])
Inventory: 13 metric ton = 14.3 tons (Load Factor(LF) [1])

Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: January 2021 [0121] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 12931 (2019) and Trucks: 4%
Future ADT: 15319 (In 2032 )

I 93 RAMP SACN over TR ORANGE LINE (Route: 93)
Num:B166038DEDOTNBIx
Open: no restriction [A]
Built: 2005, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 167.2 m = 548.6 ft
Main Spans: 4 at 43.9 m = 144.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 99.9 metric ton = 109.9 tons (Load Factor(LF) [1])
Inventory: 57.6 metric ton = 63.4 tons (Load Factor(LF) [1])

I 93 NB over I 93 SB/AUSTN ST/MBTA (Route: 93)
Num:B166008YYDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Dimensions
Length: 162.3 m = 532.5 ft
Main Spans: 4 at 45.1 m = 148.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 20.6 m = 67.6 ft (5 Lanes) and Out-To-Out: 21.8 m = 71.5 ft for a 20.6 m = 67.6 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 67.4 metric ton = 74.1 tons (Load Factor(LF) [1])
Inventory: 40.4 metric ton = 44.4 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.1 km = 0.1 mi
Traffic
ADT: 46984 (2015) and Trucks: 9%
Future ADT: 74227 (In 2031 )

US 1 RAMP TC over OTHER RELIEF (Route: 1)
Num:B163928XUDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 171.3 m = 562.0 ft
Main Spans: 4 at 47.2 m = 154.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 4.82 m = 15.8 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 96.1 metric ton = 105.7 tons (Load Factor(LF) [1])
Inventory: 56.5 metric ton = 62.2 tons (Load Factor(LF) [1])

Future Work
Work Needed:
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 60300 (2017) and Trucks: 6%
Future ADT: 275793 (In 2032 )

US 1 RAMP S-TB over COMB RMP NS CT TL&MBTA (Route: 93)
Num:B166118Y3DOTNBIx
Open: no restriction [A]
Built: 2001, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 212.4 m = 696.9 ft
Main Spans: 5 at 49.7 m = 163.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 7.6 m = 24.9 ft (1 Lanes) and Out-To-Out: 8.8 m = 28.9 ft for a 7.6 m = 24.9 ft approaching roadway.
Vertical Clearance: 4.85 m = 15.9 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 2020 [0920] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 53600 (2016) and Trucks: 2%
Future ADT: 18162 (In 2031 )

I 93 RAMP SN over US 1 RAMP CT (Route: 93)
Num:B166078YKDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Box Beam or girders - Single or Spread [06]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 112.2 m = 368.1 ft
Main Spans: 5 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (1 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 99.9 metric ton = 109.9 tons (Load Factor(LF) [1])
Inventory: 46.4 metric ton = 51.0 tons (Load Factor(LF) [1])

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 13100 (2018) and Trucks: 4%
Future ADT: 275793 (In 2031 )

HWY EMBKT WB ON over HWY EMBANKMENT RD EB (Route: 1)
Num:B162584FNDOTNBIx
Posted for other load-capacity restriction [R]
Built: 1951, Reconstructed: 1996
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 47.2 m = 154.9 ft
Main Spans: 3 at 24.1 m = 79.1 ft
Approach Spans: 0
Skew: 8
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 9.8 m = 32.2 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
CHARLES CIRCLE STORROW D

Condition
Deck: Good [7]
Superstructure: Poor [4]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 29.2 metric ton = 32.1 tons (Load Factor(LF) [1])
Inventory: 10.7 metric ton = 11.8 tons (Load Factor(LF) [1])

Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: January 2021 [0121] and Frequency: 12

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 8017 (2019) and Trucks: 0%
Future ADT: 16583 (In 2032 )

I 93 RAMPS NS SN over OTHER RELIEF (Route: 93)
Num:B165769ELDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Other [00]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 64.4 m = 211.3 ft
Main Spans: 17 at 3.7 m = 12.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 13.4 m = 44.0 ft (2 Lanes) and Out-To-Out: 15.7 m = 51.5 ft for a 13.4 m = 44.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93 RAMPS N-S S-N

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 81.1 metric ton = 89.2 tons (Load Factor(LF) [1])
Inventory: 46.3 metric ton = 50.9 tons (Load Factor(LF) [1])

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 42993 (2018) and Trucks: 9%
Future ADT: 31586 (In 2032 )

US 1 RAMP TC over I 93 RMPS SN NS ST (Route: 93)
Num:B163928DGDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 146.5 m = 480.7 ft
Main Spans: 3 at 54.2 m = 177.8 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 13.1 m = 43.0 ft (2 Lanes) and Out-To-Out: 14.3 m = 46.9 ft for a 12.2 m = 40.0 ft approaching roadway.
Vertical Clearance: 4.67 m = 15.3 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 75.6 metric ton = 83.2 tons (Load Factor(LF) [1])
Inventory: 45.4 metric ton = 49.9 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 1999 [899] and Frequency: 24

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 35800 (2017) and Trucks: 8%
Future ADT: 275793 (In 2032 )

I 93 RAMP NS over US 1 RAMP TC (Route: 93)
Num:B166068YRDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Dimensions
Length: 112.2 m = 368.1 ft
Main Spans: 5 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (1 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 6.35 m = 20.8 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 19945 (2017) and Trucks: 3%
Future ADT: 63646 (In 2031 )

I 93 SB over COMB MILLERS RIVER/ OTH (Route: 93)
Num:B166018YWDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 254.2 m = 834.0 ft
Main Spans: 6 at 44.8 m = 147.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 17.1 m = 56.1 ft (3 Lanes) and Out-To-Out: 20.1 m = 65.9 ft for a 17.1 m = 56.1 ft approaching roadway.
Vertical Clearance: 4.41 m = 14.5 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US 1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Fair [5]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 69.1 metric ton = 76.0 tons (Allowable Stress(AS) [2])
Inventory: 23.4 metric ton = 25.7 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: January 2020 [0120] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 80170 (2020) and Trucks: 8%
Future ADT: 275793 (In 2031 )

I 93 NB BT 38-46 over I 93 SB BT 38-46 (Route: 93)
Num:B162813DWDOTNBIx
Open: no restriction [A]
Built: 1970, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 198.7 m = 651.9 ft
Main Spans: 8 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 18.9 m = 62.0 ft (3 Lanes) and Out-To-Out: 21 m = 68.9 ft for a 18.9 m = 62.0 ft approaching roadway.
Vertical Clearance: 4.8 m = 15.7 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.7 MI N OF JCT US1&I93

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 53.1 metric ton = 58.4 tons (Load Factor(LF) [1])
Inventory: 31.8 metric ton = 35.0 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: March 2020 [0320] and Frequency: 24

I 93 SB BT 38-46 over TR ORANGE LINE (Route: 93)
Num:B162813EBDOTNBIx
Open: no restriction [A]
Built: 1970, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 198.7 m = 651.9 ft
Main Spans: 8 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 18.9 m = 62.0 ft (3 Lanes) and Out-To-Out: 21 m = 68.9 ft for a 18.9 m = 62.0 ft approaching roadway.
Vertical Clearance: 4.54 m = 14.9 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.7 MI N OF JCT I93&US1

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 49.6 metric ton = 54.6 tons (Load Factor(LF) [1])
Inventory: 29.5 metric ton = 32.5 tons (Load Factor(LF) [1])

ST 3 CAMBRIDGE ST over COMB ST3/ST28 & CHARLES (Route: 3)
Num:B160094F0DOTNBIx
Open: no restriction [A]
Built: 1905, Reconstructed: 2018
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Arch - Deck [11]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 650.7 m = 2134.9 ft
Main Spans: 11 at 74.1 m = 243.1 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 27.6 m = 90.6 ft (6 Lanes) and Out-To-Out: 32.5 m = 106.6 ft for a 17.1 m = 56.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 9.1 m = 29.9 ft

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.2 MI W OF BLOSSOM ST

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 57.9 metric ton = 63.7 tons (Load Factor(LF) [1])
Inventory: 39.4 metric ton = 43.3 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: September 2020 [0920] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.3 km = 0.2 mi
Traffic
ADT: 29100 (2018) and Trucks: 5%
Future ADT: 35692 (In 2031 )

I 93 RAMP NS over OTHER RELIEF (Route: 93)
Num:B165748YQDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 12.5 m = 41.0 ft
Main Spans: 3 at 4 m = 13.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.7 m = 22.0 ft (1 Lanes) and Out-To-Out: 7.4 m = 24.3 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93 RAMP NS

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 77.6 metric ton = 85.4 tons (Load Factor(LF) [1])
Inventory: 42.6 metric ton = 46.9 tons (Load Factor(LF) [1])

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 28100 (2019) and Trucks: 2%
Future ADT: 63646 (In 2031 )

I 93 RAMP SN over US 1 RAMP TC (Route: 93)
Num:B166078YLDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Dimensions
Length: 90.8 m = 297.9 ft
Main Spans: 4 at 24.7 m = 81.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 10.8 m = 35.4 ft for a 9 m = 29.5 ft approaching roadway.
Vertical Clearance: 4.52 m = 14.8 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 70.7 metric ton = 77.8 tons (Load Factor(LF) [1])
Inventory: 42.3 metric ton = 46.5 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: October 2020 [1020] and Frequency: 24

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 51300 (2018) and Trucks: 2%
Future ADT: 275793 (In 2031 )

I 93 NB over I 93 SB (Route: 93)
Num:B16600900DOTNBIx
Open: no restriction [A]
Built: 2003, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 166.7 m = 546.9 ft
Main Spans: 4 at 43.6 m = 143.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 15.2 m = 49.9 ft (3 Lanes) and Out-To-Out: 16.5 m = 54.1 ft for a 17.1 m = 56.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Fair [5]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 50.1 metric ton = 55.1 tons (Load Factor(LF) [1])
Inventory: 44.5 metric ton = 49.0 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: January 2020 [0120] and Frequency: 24

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 70395 (2020) and Trucks: 6%
Future ADT: 92688 (In 2031 )

HWY LAND BLVD over WATER BROAD CANAL (Route: 3)
Num:C010404DLDOTNBIx
Posted for load [P]
Built: 1956, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Deck: Open Grating [3] with Wearing Surface: Other [9]

Bridge Dimensions
Length: 53.3 m = 174.9 ft
Main Spans: 1 at 18.3 m = 60.0 ft
Approach Spans: 3
Skew: 0
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 12.8 m = 42.0 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 5.2 m = 17.1 ft and Navigational Clearance: 1.2 m = 3.9 ft

Location
Cambridge [11000]: Middlesex County [017], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.1 MI N OF LONGFELLOW BR

Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design:
Operating: 29.8 metric ton = 32.8 tons (Load Factor(LF) [1])
Inventory: 17.8 metric ton = 19.6 tons (Load Factor(LF) [1])

Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Meets minimum tolerable limits to be left in place as is [4] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 12

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 15611 (2020) and Trucks: 0%
Future ADT: 40430 (In 2031 )

I 93 RAMP TS over US 1 RAMP LC (Route: 93)
Num:C010498YHDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 237.7 m = 779.9 ft
Main Spans: 6 at 43.7 m = 143.4 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 6.7 m = 22.0 ft (1 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Cambridge [11000]: Middlesex County [017], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
NORTH OF CHARLES RIVER

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 88.5 metric ton = 97.4 tons (Allowable Stress(AS) [2])
Inventory: 49.6 metric ton = 54.6 tons (Allowable Stress(AS) [2])

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 15468 (2018) and Trucks: 8%
Future ADT: 0 (In 2031 )

HWY FIRST ST over WATER BROAD CANAL (Route: 3)
Num:C010084DMDOTNBIx
Posted for load [P]
Built: 1924, Reconstructed: 2000
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Bridge Type
Main Span(s): Steel [3] Girder and floorbeam system [03]
Approach Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Deck: Open Grating [3] with Wearing Surface: Other [9]

Bridge Dimensions
Length: 36.6 m = 120.1 ft
Main Spans: 1 at 12.2 m = 40.0 ft
Approach Spans: 2
Skew: 0
Width, Roadway: 10.1 m = 33.1 ft (2 Lanes) and Out-To-Out: 16.9 m = 55.4 ft for a 10.1 m = 33.1 ft approaching roadway.
Vertical Clearance: 4.88 m = 16.0 ft and Navigational Clearance: 1.2 m = 3.9 ft

Location
Cambridge [11000]: Middlesex County [017], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.16 KM N OF LONGFELLOW BR

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Poor [4]
Loading
Design: M 18 / H 20 [4]
Operating: 14.6 metric ton = 16.1 tons (Load Factor(LF) [1])
Inventory: 12.9 metric ton = 14.2 tons (Load Factor(LF) [1])

Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Somewhat better than minimum adequacy to tolerate being left in place as is [5] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: June 2020 [0620] and Frequency: 12

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 17600 (2018) and Trucks: 4%
Future ADT: 30007 (In 2031 )

US 1 RAMP TC over COMB I93 RMP NS & MBTA (Route: 93)
Num:B163928XWDOTNBIx
Open: no restriction [A]
Built: 2002, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 135 m = 442.9 ft
Main Spans: 3 at 55.2 m = 181.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 12.5 m = 41.0 ft (3 Lanes) and Out-To-Out: 13.7 m = 44.9 ft for a 12.5 m = 41.0 ft approaching roadway.
Vertical Clearance: 5.02 m = 16.5 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 74.9 metric ton = 82.4 tons (Allowable Stress(AS) [2])
Inventory: 43.1 metric ton = 47.4 tons (Allowable Stress(AS) [2])

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.4 km = 0.2 mi
Traffic
ADT: 56700 (2016) and Trucks: 10%
Future ADT: 34966 (In 2031 )

I 93 RAMP NS over US 1 RAMP TC & LC (Route: 93)
Num:B166068YUDOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete continuous [6] Segmental box girder [21]
Approach Span(s): Other [00]
Deck: Other [9] with Wearing Surface: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 235.9 m = 774.0 ft
Main Spans: 6 at 43.6 m = 143.1 ft
Approach Spans: 0
Skew: 2
Width, Roadway: 6.7 m = 22.0 ft (1 Lanes) and Out-To-Out: 7.9 m = 25.9 ft for a 6.7 m = 22.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 71.3 metric ton = 78.4 tons (Allowable Stress(AS) [2])
Inventory: 42.8 metric ton = 47.1 tons (Allowable Stress(AS) [2])

Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 20547 (2019) and Trucks: 4%
Future ADT: 63646 (In 2031 )

I 93 RAMPS SN NS over RR BMRR BSG SPUR (Route: 93)
Num:B166059U0DOTNBIx
Open: no restriction [A]
Built: 1999, Reconstructed: N/A [0000]
Historic: Historical significance is not determinable at this time. [4]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93/US1 INTERCHANGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 88.7 metric ton = 97.6 tons (Load Factor(LF) [1])
Inventory: 53.2 metric ton = 58.5 tons (Load Factor(LF) [1])

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 37301 (2016) and Trucks: 2%
Future ADT: 118763 (In 2031 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S - Dismantled and/or in storage. L - Severe loss of historic integrity due to alteration.

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