HistoricBridges.org Bridge Locator

Nearby Bridges in NBI 2021: 8

US 1 NB/LOWR DECK over WATER MYSTIC RIVER (Route: 1)
Num:B160174X3DOTNBIx
Open: no restriction [A]
Built: 1950, 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] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 464.5 m = 1524.0 ft
Main Spans: 3 at 244.1 m = 800.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11 m = 36.1 ft (3 Lanes) and Out-To-Out: 12.7 m = 41.7 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 4.88 m = 16.0 ft and Navigational Clearance: 41.1 m = 134.8 ft

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
BIG MYS LOWER

Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 36.4 metric ton = 40.0 tons (Load Factor(LF) [1])
Inventory: 21.8 metric ton = 24.0 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 replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
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: 0.8 km = 0.5 mi
Traffic
ADT: 41951 (2018) and Trucks: 7%
Future ADT: 70595 (In 2032 )

US 1 SB/B MYSTC U over US 1 NB/BIG MYSTIC LOWR (Route: 1)
Num:B160174X4DOTNBIx
Open: no restriction [A]
Built: 1950, 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] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Bituminous [6]

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
BIG MYSTIC UPPER

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 36.4 metric ton = 40.0 tons (Load Factor(LF) [1])
Inventory: 21.8 metric ton = 24.0 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 replacement [2]
Road Alignment: Better than present minimum criteria [7]
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: 0.8 km = 0.5 mi
Traffic
ADT: 33373 (2018) and Trucks: 9%
Future ADT: 45800 (In 2032 )

US 1 NB/LOWR DECK over OTHER RELIEF (Route: 1)
Num:B160174X1DOTNBIx
Open: no restriction [A]
Built: 1950, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

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: Closed Grating [4] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 326.7 m = 1071.9 ft
Main Spans: 12 at 35.4 m = 116.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11 m = 36.1 ft (3 Lanes) and Out-To-Out: 12.7 m = 41.7 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 4.88 m = 16.0 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
TOLL PL LOWER

Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 35.3 metric ton = 38.8 tons (Load Factor(LF) [1])
Inventory: 22.2 metric ton = 24.4 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 replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: November 1999 [1199] and Frequency: 24

US 1 SB/TOLL UPPR over US 1 NB/TOLL PLAZA LOWR (Route: 1)
Num:B160174X2DOTNBIx
Open: no restriction [A]
Built: 1950, Reconstructed: N/A [0000]
Historic: Bridge is eligible for the NRHP. [2]

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: Closed Grating [4] with Wearing Surface: Bituminous [6]

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
TOLL PL UPPER

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 36.3 metric ton = 39.9 tons (Load Factor(LF) [1])
Inventory: 21.7 metric ton = 23.9 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 replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: November 1999 [1199] and Frequency: 24

US 1 NB/L MYSTC L over HWY CHELSEA STREET (Route: 1)
Num:B160174WWDOTNBIx
Open: no restriction [A]
Built: 1950, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 133.8 m = 439.0 ft
Main Spans: 1 at 133.8 m = 439.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11 m = 36.1 ft (3 Lanes) and Out-To-Out: 12.7 m = 41.7 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 4.9 m = 16.1 ft and Navigational Clearance: 30.5 m = 100.1 ft

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
L MYSTIC LOWER

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 45 metric ton = 49.5 tons (Load Factor(LF) [1])
Inventory: 27 metric ton = 29.7 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 replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 1999 [999] and Frequency: 24

US 1 SB/L MYSTC U over US 1 NB/LIT MYSTIC LOWR (Route: 1)
Num:B160174WXDOTNBIx
Open: no restriction [A]
Built: 1950, Reconstructed: N/A [0000]
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Bituminous [6]

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
L MYSTIC UP

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 43.8 metric ton = 48.2 tons (Allowable Stress(AS) [2])
Inventory: 27.7 metric ton = 30.5 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 replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 1999 [999] and Frequency: 24

HWY CHELSEA ST over WATER LITTLE MYSTIC CHAN (Route: 0)
Num:B163842CQMUNNBIx
Open: no restriction [A]
Built: 1982, 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): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]

Bridge Dimensions
Length: 116.7 m = 382.9 ft
Main Spans: 3 at 44.8 m = 147.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.8 m = 32.2 ft (2 Lanes) and Out-To-Out: 12.6 m = 41.3 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 3 m = 9.8 ft

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by City or Municipal Highway Agency [04], DOT District: 6
UNDER TOBIN AT MORAN TERM

Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 52.2 metric ton = 57.4 tons (Allowable Stress(AS) [2])
Inventory: 33.3 metric ton = 36.6 tons (Allowable Stress(AS) [2])

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: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 1999 [1099] 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: 4000 (2019) and Trucks: 26%
Future ADT: 6001 (In 2032 )

US 1 NB/LOW DECK over HWY CHELSEA LOCAL STRE (Route: 1)
Num:B160174WYDOTNBIx
Open: no restriction [A]
Built: 1950, Reconstructed: N/A [0000]
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): Other [00]
Deck: Closed Grating [4] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 862.3 m = 2829.2 ft
Main Spans: 30 at 31.4 m = 103.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11 m = 36.1 ft (3 Lanes) and Out-To-Out: 12.7 m = 41.7 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 4.7 m = 15.4 ft and Navigational Clearance: 0 = N/A

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
CHEL APPR LOW

Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 18 metric ton = 19.8 tons (Load Factor(LF) [1])
Inventory: 10.8 metric ton = 11.9 tons (Load Factor(LF) [1])

Appraisal
Structural: Basically intolerable requiring high priority of replacement [2]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Better than present minimum criteria [7]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: November 1999 [1199] 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: 0.8 km = 0.5 mi
Traffic
ADT: 41951 (2018) and Trucks: 7%
Future ADT: 70595 (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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