HistoricBridges.org Bridge Locator

Nearby Bridges in NBI 2021: 35

I 93 RAMPS SN NS over RR MBTA (Route: 93)
Num:B166059TXDOTNBIx
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: 0.1 Miles (0.1 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: 132.3 m = 434.1 ft
Main Spans: 3 at 44.8 m = 147.0 ft
Approach Spans: 0
Skew: 1
Width, Roadway: 15.5 m = 50.9 ft (3 Lanes) and Out-To-Out: 17.3 m = 56.8 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: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 83.8 metric ton = 92.2 tons (Load Factor(LF) [1])
Inventory: 50.2 metric ton = 55.2 tons (Load Factor(LF) [1])

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: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 57676 (2016) and Trucks: 4%
Future ADT: 17372 (In 2031 )

I 93 SB BT 57-61 over RR MBTA & BMRR (Route: 93)
Num:B162813BUDOTNBIx
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: 0.1 Miles (0.1 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: 102.1 m = 335.0 ft
Main Spans: 4 at 25.3 m = 83.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.5 m = 44.3 ft (3 Lanes) and Out-To-Out: 27.3 m = 89.6 ft for a 13.7 m = 44.9 ft approaching roadway.
Vertical Clearance: 5 m = 16.4 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.5 MI N OF JCT 193&US1

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 56.4 metric ton = 62.0 tons (Load Factor(LF) [1])
Inventory: 33.8 metric ton = 37.2 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 minimum criteria [6]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: November 2020 [1120] 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 over I 93 SB BT 57 - 61 (Route: 93)
Num:B162813BPDOTNBIx
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: 0.1 Miles (0.1 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: 101.5 m = 333.0 ft
Main Spans: 4 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: 6.22 m = 20.4 ft and Navigational Clearance: 0 = N/A

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

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 56.6 metric ton = 62.3 tons (Load Factor(LF) [1])
Inventory: 33.8 metric ton = 37.2 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: April 2020 [0420] and Frequency: 24

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 37000 (2019) and Trucks: 8%
Future ADT: 117184 (In 2031 )

I 93 RAMPS SN NS over RR MBTA BSG SPUR (Route: 93)
Num:B166059TYDOTNBIx
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: 0.1 Miles (0.1 Kilometers)

Bridge Dimensions
Length: 127.7 m = 419.0 ft
Main Spans: 3 at 44.8 m = 147.0 ft
Approach Spans: 0
Skew: 99
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: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 84.2 metric ton = 92.6 tons (Load Factor(LF) [1])
Inventory: 50.4 metric ton = 55.4 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: January 2020 [0120] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 38735 (2019) and Trucks: 4%
Future ADT: 275793 (In 2031 )

I 93 NB RAMP CL over OTHER RELIEF (Route: 93)
Num:B166029E2DOTNBIx
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: 0.1 Miles (0.2 Kilometers)

Bridge Dimensions
Length: 182.3 m = 598.1 ft
Main Spans: 4 at 46 m = 150.9 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 12.2 m = 40.0 ft for a 11 m = 36.1 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
RAMP N. OF GILMORE BRIDGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 83.3 metric ton = 91.6 tons (Load Factor(LF) [1])
Inventory: 50 metric ton = 55.0 tons (Load Factor(LF) [1])

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: 15510 (2018) and Trucks: 6%
Future ADT: 0 (In 2032 )

I 93 NB RAMP CL over OTHER RELIEF (Route: 93)
Num:B166029E7DOTNBIx
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: 0.1 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: 31 m = 101.7 ft
Main Spans: 1 at 31 m = 101.7 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 12.2 m = 40.0 ft for a 11 m = 36.1 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
RAMP N. OF GILMORE BRIDGE

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 88.6 metric ton = 97.5 tons (Load Factor(LF) [1])
Inventory: 53 metric ton = 58.3 tons (Load Factor(LF) [1])

I 93 NB over I 93 SB BT 61 - B5 (Route: 93)
Num:B162813BQDOTNBIx
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: 0.1 Miles (0.2 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: 148.4 m = 486.9 ft
Main Spans: 6 at 25.3 m = 83.0 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: 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
.5 MI N OF JCT 193&US1

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 53.8 metric ton = 59.2 tons (Load Factor(LF) [1])
Inventory: 32.2 metric ton = 35.4 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: April 2020 [0420] 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: 37000 (2019) and Trucks: 8%
Future ADT: 94600 (In 2031 )

I 93 SB BT 61-B5 over RR BMRR (Route: 93)
Num:B162813BVDOTNBIx
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: 0.1 Miles (0.2 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: 148.4 m = 486.9 ft
Main Spans: 6 at 25.3 m = 83.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.6 m = 44.6 ft (3 Lanes) and Out-To-Out: 17.4 m = 57.1 ft for a 13.7 m = 44.9 ft approaching roadway.
Vertical Clearance: 4.55 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
0.24 MI S OF CAMBRIDGE ST

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design:
Operating: 55.2 metric ton = 60.7 tons (Load Factor(LF) [1])
Inventory: 33 metric ton = 36.3 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

I 93 NB over I 93 SB BT 46 - 57 (Route: 93)
Num:B162813BMDOTNBIx
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: 0.1 Miles (0.2 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: 273.7 m = 898.0 ft
Main Spans: 11 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: 4.78 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
.5 MI N OF JCT I93&US1

Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 55.1 metric ton = 60.6 tons (Load Factor(LF) [1])
Inventory: 33 metric ton = 36.3 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: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: April 2020 [0420] and Frequency: 24

Future Work
Work Needed: Bridge deck rehabilitation with only incidental widening. [36]
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 72888 (2019) and Trucks: 11%
Future ADT: 152245 (In 2031 )

I 93 SB BT 46-57 over TR ORANGE LINE (Route: 93)
Num:B162813BTDOTNBIx
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: 0.1 Miles (0.2 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: 273.7 m = 898.0 ft
Main Spans: 11 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 17.6 m = 57.7 ft (3 Lanes) and Out-To-Out: 21.3 m = 69.9 ft for a 17.6 m = 57.7 ft approaching roadway.
Vertical Clearance: 5 m = 16.4 ft and Navigational Clearance: 0 = N/A

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

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 54.7 metric ton = 60.2 tons (Load Factor(LF) [1])
Inventory: 32.7 metric ton = 36.0 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: Equal to present minimum criteria [6]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: November 2020 [1120] and Frequency: 24

I 93 NB RAMP C-L over OTHER RELIEF (Route: 93)
Num:B166029DLDOTNBIx
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: 0.2 Miles (0.2 Kilometers)

Bridge Dimensions
Length: 213.5 m = 700.5 ft
Main Spans: 5 at 46.9 m = 153.9 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 12.2 m = 40.0 ft for a 11 m = 36.1 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
RAMP N. OF GILMORE BRIDGE

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

I 93 RAMP SN over COMB MBTA & ORANGE LINE (Route: 93)
Num:B166059TTDOTNBIx
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: 0.2 Miles (0.2 Kilometers)

Bridge Dimensions
Length: 263 m = 862.9 ft
Main Spans: 6 at 46.6 m = 152.9 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
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:
Operating: 59.7 metric ton = 65.7 tons (Allowable Stress(AS) [2])
Inventory: 35.7 metric ton = 39.3 tons (Allowable Stress(AS) [2])

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: 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: 0.3 km = 0.2 mi
Traffic
ADT: 11575 (2016) and Trucks: 4%
Future ADT: 0 (In 2031 )

I 93 RAMP NS over RR MBTA (Route: 93)
Num:B166049DFDOTNBIx
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: 0.2 Miles (0.3 Kilometers)

Bridge Dimensions
Length: 274.5 m = 900.6 ft
Main Spans: 6 at 47.9 m = 157.2 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 12.2 m = 40.0 ft for a 11 m = 36.1 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: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 83.3 metric ton = 91.6 tons (Load Factor(LF) [1])
Inventory: 49.9 metric ton = 54.9 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: February 2020 [0220] 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: 19352 (2016) and Trucks: 2%
Future ADT: 0 (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: 0.2 Miles (0.3 Kilometers)

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: 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 )

I 93 SB B5-B10 over RR MBTA/BMRR (Route: 93)
Num:B162813EDDOTNBIx
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: 0.2 Miles (0.3 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: 167.6 m = 549.9 ft
Main Spans: 5 at 42.4 m = 139.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.7 m = 44.9 ft (3 Lanes) and Out-To-Out: 17.4 m = 57.1 ft for a 13.7 m = 44.9 ft approaching roadway.
Vertical Clearance: 5.05 m = 16.6 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.9 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: 47.9 metric ton = 52.7 tons (Load Factor(LF) [1])
Inventory: 28.7 metric ton = 31.6 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: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 1999 [799] and Frequency: 24

I 93 NB B5-B10 over COMB MBTA & I 93 SB (Route: 93)
Num:B162813DYDOTNBIx
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: 0.2 Miles (0.3 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: 167.6 m = 549.9 ft
Main Spans: 5 at 42.4 m = 139.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 17.4 m = 57.1 ft (3 Lanes) and Out-To-Out: 18.9 m = 62.0 ft for a 17.4 m = 57.1 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
.8 MI N OF RAMP I93&US1

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 46.6 metric ton = 51.3 tons (Load Factor(LF) [1])
Inventory: 27.9 metric ton = 30.7 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: April 1999 [499] 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: 53000 (2018) and Trucks: 9%
Future ADT: 94600 (In 2032 )

I 93 RAMP SN over TR MBTA ORANGE LINE (Route: 93)
Num:B166059E8DOTNBIx
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: 0.2 Miles (0.4 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: Latex Concrete or similar additive [3]

Bridge Dimensions
Length: 24.9 m = 81.7 ft
Main Spans: 1 at 24.9 m = 81.7 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
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
I93 US1 INTERCHANGE

Condition
Deck: Very Good [8]
Superstructure: Good [7]
Substructure: Very Good [8]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 71.7 metric ton = 78.9 tons (Load Factor(LF) [1])
Inventory: 42.9 metric ton = 47.2 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: 0.3 km = 0.2 mi
Traffic
ADT: 19452 (2016) and Trucks: 4%
Future ADT: 29217 (In 2031 )

I 93 NB ON RMP over I 93 SB/MBTA ORANGE LN (Route: 93)
Num:B162813CEDOTNBIx
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: 0.2 Miles (0.4 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: 91.4 m = 299.9 ft
Main Spans: 4 at 23.5 m = 77.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 6.7 m = 22.0 ft (1 Lanes) and Out-To-Out: 13.7 m = 44.9 ft for a 6.7 m = 22.0 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
.8 MI N OF JCT I93&US1

Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 54.1 metric ton = 59.5 tons (Load Factor(LF) [1])
Inventory: 32.5 metric ton = 35.8 tons (Load Factor(LF) [1])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: April 1999 [499] 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: 23000 (2018) and Trucks: 4%
Future ADT: 38377 (In 2032 )

I 93 RAMP NS over RR MBTA (Route: 93)
Num:B166049THDOTNBIx
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: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Steel [3] 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: 27.6 m = 90.6 ft
Main Spans: 1 at 27.6 m = 90.6 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11 m = 36.1 ft (2 Lanes) and Out-To-Out: 12.2 m = 40.0 ft for a 11 m = 36.1 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: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 43.8 metric ton = 48.2 tons (Load Factor(LF) [1])
Inventory: 26.3 metric ton = 28.9 tons (Load Factor(LF) [1])

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 31000 (2014) and Trucks: 2%
Future ADT: 63646 (In 2031 )

I 93 SB B10-B16RP over RR MBTA & BMRR (Route: 93)
Num:B162813CGDOTNBIx
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: 0.3 Miles (0.4 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: 120.4 m = 395.0 ft
Main Spans: 5 at 28 m = 91.9 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 11.6 m = 38.1 ft (2 Lanes) and Out-To-Out: 13.7 m = 44.9 ft for a 11 m = 36.1 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
.8 MI N OF JCT US1 & I93

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 58.7 metric ton = 64.6 tons (Load Factor(LF) [1])
Inventory: 35.2 metric ton = 38.7 tons (Load Factor(LF) [1])

Future Work
Work Needed: Other structural work: including hydraulic replacements. [38]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 26000 (2017) and Trucks: 6%
Future ADT: 20531 (In 2032 )

I 93 NB B10-B16 over I 93 SB B10-B16 (Route: 93)
Num:B162813E1DOTNBIx
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: 0.3 Miles (0.4 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: 139 m = 456.1 ft
Main Spans: 6 at 24.1 m = 79.1 ft
Approach Spans: 0
Skew: 5
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: 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
1.0 MI N OF JCT I93 & US1

Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 58.7 metric ton = 64.6 tons (Load Factor(LF) [1])
Inventory: 35.2 metric ton = 38.7 tons (Load Factor(LF) [1])

Future Work
Work Needed: Bridge deck rehabilitation with only incidental widening. [36]
Bridge Detour: 0.9 km = 0.6 mi
Traffic
ADT: 75293 (2018) and Trucks: 8%
Future ADT: 120343 (In 2032 )

I 93 SB B10-B16 over RR MBTA/BMRR (Route: 93)
Num:B162813EEDOTNBIx
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: 0.3 Miles (0.4 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: 134.7 m = 442.0 ft
Main Spans: 6 at 23.2 m = 76.1 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 13.7 m = 44.9 ft (3 Lanes) and Out-To-Out: 17.4 m = 57.1 ft for a 13.7 m = 44.9 ft approaching roadway.
Vertical Clearance: 5.2 m = 17.1 ft and Navigational Clearance: 0 = N/A

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

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 50.4 metric ton = 55.4 tons (Load Factor(LF) [1])
Inventory: 30.2 metric ton = 33.2 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: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 1999 [799] 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: 0.3 Miles (0.5 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])

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: 0.3 Miles (0.5 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

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: 117184 (In 2031 )

HWY CAMBRIDGE ST over COMB ORANGE & MBTA/BMRR (Route: 0)
Num:B1606638DMUNNBIx
Open: no restriction [A]
Built: 1880, Reconstructed: 1972
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): 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: 52.7 m = 172.9 ft
Main Spans: 2 at 26.5 m = 86.9 ft
Approach Spans: 0
Skew: 26
Width, Roadway: 16.8 m = 55.1 ft (2 Lanes) and Out-To-Out: 22.6 m = 74.2 ft for a 16.8 m = 55.1 ft approaching roadway.
Vertical Clearance: 4.44 m = 14.6 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by City or Municipal Highway Agency [04], DOT District: 6
0.33 KM W SULLIVAN SQ.

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 63.8 metric ton = 70.2 tons (Allowable Stress(AS) [2])
Inventory: 35 metric ton = 38.5 tons (Allowable Stress(AS) [2])

Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present minimum criteria [6]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 1999 [799] and Frequency: 24

I 93 SB B16-SB4 over COMB CAMBRIGE&MBTA/BMRR (Route: 93)
Num:B162813EGDOTNBIx
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: 0.3 Miles (0.5 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: 370 m = 1214.0 ft
Main Spans: 11 at 64.6 m = 212.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 19.8 m = 65.0 ft (4 Lanes) and Out-To-Out: 21.7 m = 71.2 ft for a 19.8 m = 65.0 ft approaching roadway.
Vertical Clearance: 4.62 m = 15.2 ft and Navigational Clearance: 0 = N/A

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

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 55.6 metric ton = 61.2 tons (Load Factor(LF) [1])
Inventory: 33.3 metric ton = 36.6 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: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: July 1999 [799] 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: 113400 (2017) and Trucks: 12%
Future ADT: 119869 (In 2032 )

I 93 NB B16-NB4 over I 93 SB&CMBRG&MBTA/BMRR (Route: 93)
Num:B162813E3DOTNBIx
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: 0.3 Miles (0.5 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: 375.8 m = 1233.0 ft
Main Spans: 10 at 64.6 m = 212.0 ft
Approach Spans: 0
Skew: 99
Width, Roadway: 19.6 m = 64.3 ft (4 Lanes) and Out-To-Out: 21.7 m = 71.2 ft for a 19.5 m = 64.0 ft approaching roadway.
Vertical Clearance: 4.72 m = 15.5 ft and Navigational Clearance: 0 = N/A

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

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 54.7 metric ton = 60.2 tons (Load Factor(LF) [1])
Inventory: 32.8 metric ton = 36.1 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: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: April 1999 [499] 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: 76000 (2018) and Trucks: 8%
Future ADT: 132977 (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)

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 )

HWY MISHAWUM ST over ST 99 SULLIVAN SQ UNDRPS (Route: 0)
Num:B1624537UMUNNBIx
Open: no restriction [A]
Built: 1951, 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] 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: 22.3 m = 73.2 ft
Main Spans: 1 at 20.4 m = 66.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (1 Lanes) and Out-To-Out: 16.8 m = 55.1 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 4.9 m = 16.1 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by City or Municipal Highway Agency [04], DOT District: 6
1.6 KM N OF N WSHNGTON ST

Condition
Deck: Satisfactory [6]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 47.5 metric ton = 52.3 tons (Load Factor(LF) [1])
Inventory: 28.5 metric ton = 31.4 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: Meets minimum tolerable limits to be left in place as is [4]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: August 2020 [0820] 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: 6700 (2016) and Trucks: 15%
Future ADT: 9318 (In 2033 )

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 (0.7 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: 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])

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 (0.7 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: 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])

HWY SOUTH ROTARY over ST 99 SULLIVAN SQ UNDRPS (Route: 0)
Num:B1624537VMUNNBIx
Open: no restriction [A]
Built: 1951, 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): Concrete [1] Frame [07]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 18.9 m = 62.0 ft
Main Spans: 1 at 18.9 m = 62.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 15.8 m = 51.8 ft (3 Lanes) and Out-To-Out: 19.6 m = 64.3 ft for a 15.8 m = 51.8 ft approaching roadway.
Vertical Clearance: 5.59 m = 18.3 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by City or Municipal Highway Agency [04], DOT District: 6
1.6 KM N OF N WSHNGTON ST

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 48.2 metric ton = 53.0 tons (Load Factor(LF) [1])
Inventory: 28.9 metric ton = 31.8 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Better than present minimum criteria [7]
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: 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: 22370 (2020) and Trucks: 15%
Future ADT: 41378 (In 2033 )

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: 0.5 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: 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])

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: 21600 (2016) and Trucks: 5%
Future ADT: 0 (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: 0.5 Miles (0.7 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 )

HWY MAFFA WAY over COMB ORANGE & MBTA/BMRR (Route: 0)
Num:B160673GVDOT634x
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: 0.5 Miles (0.8 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: 47.2 m = 154.9 ft
Main Spans: 2 at 25.1 m = 82.4 ft
Approach Spans: 0
Skew: 24
Width, Roadway: 19.6 m = 64.3 ft (3 Lanes) and Out-To-Out: 25.4 m = 83.3 ft for a 19.8 m = 65.0 ft approaching roadway.
Vertical Clearance: 6.58 m = 21.6 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
600 M NW OF SULLIVAN SQ

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: M 18 / H 20 [4]
Operating: 42.5 metric ton = 46.8 tons (Load Factor(LF) [1])
Inventory: 25.3 metric ton = 27.8 tons (Load Factor(LF) [1])

Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 19526 (2019) and Trucks: 11%
Future ADT: 119711 (In 2032 )

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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