ST 99 ALFORD ST over WATER MYSTIC RIVER (Route: 99)
Num:B16029388MUNNBIx
Open: no restriction [A]
Built: 1963, Reconstructed: 2014
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] Movable - Bascule [16]
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: 251.5 m = 825.2 ft
Main Spans: 1 at 48.6 m = 159.5 ft
Approach Spans: 7
Skew: 0
Width, Roadway: 23.2 m = 76.1 ft (4 Lanes) and Out-To-Out: 29 m = 95.1 ft for a 25 m = 82.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 2.1 m = 6.9 ft

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

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 56.2 metric ton = 61.8 tons (Load Factor(LF) [1])
Inventory: 33.7 metric ton = 37.1 tons (Load Factor(LF) [1])

Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Superior to present desirable criteria [9]
Road Alignment: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Inspections
Date: June 2020 [0620] and Frequency: 24

Future Work
Work Needed:
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 55000 (2016) and Trucks: 15%
Future ADT: 86862 (In 2031 )

HWY NORTH ROTARY over ST 99 SULLIVAN SQ UNDRPS (Route: 0)
Num:B1624537XMUNNBIx
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: 0.3 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: 18.6 m = 61.0 ft
Main Spans: 1 at 18.6 m = 61.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 15.8 m = 51.8 ft (3 Lanes) and Out-To-Out: 19.7 m = 64.6 ft for a 15.8 m = 51.8 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 City or Municipal Highway Agency [04], DOT District: 6
1.6 KM N OF N WSHNGTON ST

Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 38.5 metric ton = 42.4 tons (Load Factor(LF) [1])
Inventory: 23.1 metric ton = 25.4 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: Equal to present minimum criteria [6]
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: 0.3 km = 0.2 mi
Traffic
ADT: 25603 (2020) and Trucks: 15%
Future ADT: 44220 (In 2033 )

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 )

HWY MYSTIC AVE over COMB ORANGE & MBTA/BMRR (Route: 38)
Num:B160683GWDOT634x
Open: no restriction [A]
Built: 1953, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 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: Bituminous [6]

Bridge Dimensions
Length: 66.1 m = 216.9 ft
Main Spans: 3 at 25 m = 82.0 ft
Approach Spans: 0
Skew: 37
Width, Roadway: 16.2 m = 53.2 ft (4 Lanes) and Out-To-Out: 19.9 m = 65.3 ft for a 16.2 m = 53.2 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
610 M NW OF SULLIVAN SQ

Condition
Deck: Fair [5]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 63.2 metric ton = 69.5 tons (Load Factor(LF) [1])
Inventory: 37.9 metric ton = 41.7 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: November 1999 [1199] and Frequency: 24

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: 31293 (2019) and Trucks: 12%
Future ADT: 56855 (In 2032 )

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: 0.5 Miles (0.8 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 )

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])

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: November 1999 [1199] and Frequency: 24

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 )