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Nearby Bridges in NBI 2021: 3


COLUMBIA BRIDGE RD over CONNECTICUT RIVER (Route: 0)
Num:5100770014000x
Posted for load [P]
Built: 1912, Reconstructed: 1981
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Wood or timber [7] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 44.5 m = 146.0 ft
Main Spans: 1 at 40.5 m = 132.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.4 m = 14.4 ft (1 Lanes) and Out-To-Out: 4.8 m = 15.7 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 3.25 m = 10.7 ft and Navigational Clearance: 0 = N/A
Location
Columbia [13940]: Coos County [007], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 1
VERMONT STATE LINE
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design:
Operating: 9.8 metric ton = 10.8 tons (Load Factor(LF) [1])
Inventory: 6.5 metric ton = 7.2 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: Basically intolerable requiring high priority of corrrective action [3]
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 2020 [1020] 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: 2.9 km = 1.8 mi
Traffic
ADT: 263 (2019) and Trucks: 0%
Future ADT: 389 (In 2041 )
COLUMBIA BRIDGE RD over CONNECTICUT RIVER (Route: 0)
Num:100512B00605121x
Posted for load [P]
Built: 1912, Reconstructed: 1981
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Wood or timber [7] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 44.5 m = 146.0 ft
Main Spans: 1 at 4 m = 13.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.4 m = 14.4 ft (1 Lanes) and Out-To-Out: 4.8 m = 15.7 ft for a 6.1 m = 20.0 ft approaching roadway.
Vertical Clearance: 3.25 m = 10.7 ft and Navigational Clearance: 0 = N/A
Location
Lemington [39700]: Essex County [009], Vermont [50]
Owned by City or Municipal Highway Agency [04], DOT District: 9
VERMONT STATE LINE
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design:
Operating: 9 metric ton = 9.9 tons (Load Factor(LF) [1])
Inventory: 6.3 metric ton = 6.9 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: Basically intolerable requiring high priority of corrrective action [3]
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 2020 [1020] 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: 0.3 km = 0.2 mi
Traffic
ADT: 255 (2017) and Trucks: 0%
Future ADT: 268 (In 2027 )
VT 00102 ML over MILL BROOK (Route: 102)
Num:200271001505122x
Open: no restriction [A]
Built: 1948, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 7.6 m = 24.9 ft
Main Spans: 1 at 6.7 m = 22.0 ft
Approach Spans: 0
Skew: 30
Width, Roadway: 9.3 m = 30.5 ft (2 Lanes) and Out-To-Out: 10.2 m = 33.5 ft for a 8.8 m = 28.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Lemington [39700]: Essex County [009], Vermont [50]
Owned by State Highway Agency [01], DOT District: 9
3.8 MI S JCT. VT.26
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 13.5 / H 15 [2]
Operating: 44.1 metric ton = 48.5 tons (Load Factor(LF) [1])
Inventory: 26.1 metric ton = 28.7 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Better than present minimum criteria [7]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 1999 [799] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 300 (2018) and Trucks: 6%
Future ADT: 315 (In 2028 )

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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