HWY MORRSSEY BLV over WATER DORCHESTER BAY (Route: 1)
Num:B160334EUDOTNBIx
Posted for other load-capacity restriction [R]
Built: 1927, Reconstructed: 1978
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Concrete [1] Arch - Deck [11]
Deck: Open Grating [3] with Wearing Surface: Other [9]

Bridge Dimensions
Length: 140.2 m = 460.0 ft
Main Spans: 1 at 20.4 m = 66.9 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 23.8 m = 78.1 ft (6 Lanes) and Out-To-Out: 27.4 m = 89.9 ft for a 23.8 m = 78.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 3.7 m = 12.1 ft

Location
Boston [07000]: Suffolk County [025], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 6
.2 MI E OF I 93

Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design: M 18 / H 20 [4]
Operating: 22.7 metric ton = 25.0 tons (Load Factor(LF) [1])
Inventory: 13.6 metric ton = 15.0 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: Equal to present desirable criteria [8]
Waterway: Meets minimum tolerable limits to be left in place as is [4] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
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: 0.5 km = 0.3 mi
Traffic
ADT: 78900 (2019) and Trucks: 1%
Future ADT: 102654 (In 2032 )

I 93 /US1/ST3 over HWY MORRISSEY BLVD (Route: 93)
Num:B162623DEDOTNBIx
Open: no restriction [A]
Built: 1958, Reconstructed: 1986
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] 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: 59.7 m = 195.9 ft
Main Spans: 2 at 29 m = 95.1 ft
Approach Spans: 0
Skew: 35
Width, Roadway: 33.5 m = 109.9 ft (9 Lanes) and Out-To-Out: 35.7 m = 117.1 ft for a 33.5 m = 109.9 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
4 MI S OF JCT I90&I93

Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 74.3 metric ton = 81.7 tons (Load Factor(LF) [1])
Inventory: 44.5 metric ton = 49.0 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: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: September 1999 [999] 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: 273676 (2018) and Trucks: 13%
Future ADT: 295329 (In 2032 )

I 93 /US1/ST3 over HWY VICTORY RD (Route: 93)
Num:B162633DDDOTNBIx
Open: no restriction [A]
Built: 1955, Reconstructed: 1984
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: 17.8 m = 58.4 ft
Main Spans: 1 at 16.2 m = 53.2 ft
Approach Spans: 0
Skew: 9
Width, Roadway: 33.9 m = 111.2 ft (8 Lanes) and Out-To-Out: 35.8 m = 117.5 ft for a 33.9 m = 111.2 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
6.6 KM S OF JCT I90&I93

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 97 metric ton = 106.7 tons (Load Factor(LF) [1])
Inventory: 58.1 metric ton = 63.9 tons (Load Factor(LF) [1])

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: May 2020 [0520] 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: 162704 (2017) and Trucks: 11%
Future ADT: 331969 (In 2031 )