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Nearby Bridges in NBI 2021: 3


BRIDGE STREET over CONNECTICUT RIVER (Route: 0)
Num:24100540016300x
Open: no restriction [A]
Built: 1930, Reconstructed: 2018
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Arch - Deck [11]
Approach Span(s): Concrete continuous [2] Slab [01]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 70.7 m = 232.0 ft
Main Spans: 1 at 41.5 m = 136.2 ft
Approach Spans: 10
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 9.9 m = 32.5 ft for a 7.3 m = 24.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Stewartstown [73380]: Coos County [007], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 1
VERMONT STATE LINE
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 39.6 metric ton = 43.6 tons (Load Factor(LF) [1])
Inventory: 23.7 metric ton = 26.1 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: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.6 km = 0.4 mi
Traffic
ADT: 107 (2019) and Trucks: 10%
Future ADT: 158 (In 2041 )
BRIDGE STREET over CONNECTICUT RIVER (Route: 0)
Num:100506B01005061x
Open: no restriction [A]
Built: 1930, Reconstructed: 2018
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Arch - Deck [11]
Approach Span(s): Concrete continuous [2] Slab [01]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 70.7 m = 232.0 ft
Main Spans: 1 at 4 m = 13.1 ft
Approach Spans: 8
Skew: 0
Width, Roadway: 7.3 m = 24.0 ft (2 Lanes) and Out-To-Out: 9.9 m = 32.5 ft for a 7 m = 23.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Canaan [11800]: Essex County [009], Vermont [50]
Owned by State Highway Agency [01], DOT District: 9
VERMONT STATE LINE
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 39.6 metric ton = 43.6 tons (Load Factor(LF) [1])
Inventory: 23.4 metric ton = 25.7 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: Equal to present desirable criteria [8] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0 km = 0.0 mi
Traffic
ADT: 104 (2017) and Trucks: 10%
Future ADT: 110 (In 2027 )
C2001 over HALLS STREAM (Route: 0)
Num:100506000105061x
Posted for load [P]
Built: 1931, 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): Concrete [1] Tee beam [04]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]
Bridge Dimensions
Length: 30.2 m = 99.1 ft
Main Spans: 3 at 10.1 m = 33.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 6.3 m = 20.7 ft (2 Lanes) and Out-To-Out: 7.1 m = 23.3 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
Canaan [11800]: Essex County [009], Vermont [50]
Owned by Town or Township Highway Agency [03], DOT District: 9
0.15 MI TO JCT W VT25
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design: M 13.5 / H 15 [2]
Operating: 38.7 metric ton = 42.6 tons (Allowable Stress(AS) [2])
Inventory: 20.7 metric ton = 22.8 tons (Allowable Stress(AS) [2])
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: Equal to present minimum criteria [6] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
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: 0.6 km = 0.4 mi
Traffic
ADT: 240 (2019) and Trucks: 2%
Future ADT: 252 (In 2029 )

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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