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Nearby Bridges in NBI 2021: 3


MASON STREET over ANDROSCOGGIN RIVER (Route: 0)
Num:2302390005500x
Open: no restriction [A]
Built: 1967, Reconstructed: 1977
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 [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: 36.9 m = 121.1 ft
Main Spans: 1 at 36 m = 118.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 11.9 m = 39.0 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Berlin [05140]: Coos County [007], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 1
350FT WEST OF UNITY ST
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 54.9 metric ton = 60.4 tons (Allowable Stress(AS) [2])
Inventory: 38.4 metric ton = 42.2 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: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 2020 [0720] 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: 0.5 km = 0.3 mi
Traffic
ADT: 5111 (2019) and Trucks: 5%
Future ADT: 7564 (In 2041 )
MASON STREET over CANAL (Route: 0)
Num:2302380005500x
Open: no restriction [A]
Built: 1967, Reconstructed: 1977
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0 Miles (0.1 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: 36.9 m = 121.1 ft
Main Spans: 2 at 17.7 m = 58.1 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 11.3 m = 37.1 ft for a 8.5 m = 27.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Berlin [05140]: Coos County [007], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 1
610FT WEST OF UNITY ST
Condition
Deck: Satisfactory [6]
Superstructure: Good [7]
Substructure: Poor [4]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 53.7 metric ton = 59.1 tons (Allowable Stress(AS) [2])
Inventory: 37.4 metric ton = 41.1 tons (Allowable Stress(AS) [2])
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: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 2020 [1020] and Frequency: 16
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: 5111 (2019) and Trucks: 5%
Future ADT: 7564 (In 2041 )
NH 16 SB over DEAD RIVER (Route: 16)
Num:2302350006100x
Open: no restriction [A]
Built: 1931, Reconstructed: 1995
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.3 Kilometers)

Bridge Type
Main Span(s): Prestressed concrete [5] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 7.3 m = 24.0 ft
Main Spans: 1 at 6.7 m = 22.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 10.9 m = 35.8 ft (2 Lanes) and Out-To-Out: 15.7 m = 51.5 ft for a 11 m = 36.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Berlin [05140]: Coos County [007], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 1
1.5 MI N OF GORHAM TL
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Very Good [8]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 77.2 metric ton = 84.9 tons (Load Factor(LF) [1])
Inventory: 46.2 metric ton = 50.8 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present desirable criteria [8]
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: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: August 2020 [0820] 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: 0.2 km = 0.1 mi
Traffic
ADT: 5944 (2019) and Trucks: 5%
Future ADT: 8797 (In 2041 )

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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