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Nearby Bridges in NBI 2021: 3


WESTERN AVE over CONTOOCOOK RIVER (Route: 0)
Num:12000950010100x
Open: no restriction [A]
Built: 2017, Reconstructed: N/A [0000]
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] Other [00]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Monolithic Concrete (concurrently placed with structural deck) [1]
Bridge Dimensions
Length: 102.4 m = 336.0 ft
Main Spans: 2 at 49.8 m = 163.4 ft
Approach Spans: 0
Skew: 32
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 9.8 m = 32.2 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
Henniker [35540]: Merrimack County [013], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 5
2.7 MI FR HILLSBOROUGH T
Condition
Deck: Excellent [9]
Superstructure: Excellent [9]
Substructure: Excellent [9]
Loading
Design: HL93 [A]
Operating: 61.2 metric ton = 67.3 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 47 metric ton = 51.7 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Superior to present desirable criteria [9]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present minimum criteria [6] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 1999 [1099] 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: 503 (2019) and Trucks: 4%
Future ADT: 744 (In 2041 )
PATTERSON HILL RD over CONTOOCOOK RIVER (Route: 0)
Num:12000970010100x
Open: no restriction [A]
Built: 1915, Reconstructed: 2001
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0 Miles (0.1 Kilometers)

Bridge Type
Main Span(s): Steel [3] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Wood or Timber [8] with Wearing Surface: Wood or Timber [7]
Bridge Dimensions
Length: 36.3 m = 119.1 ft
Main Spans: 1 at 34.4 m = 112.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 4.1 m = 13.5 ft (1 Lanes) and Out-To-Out: 4.5 m = 14.8 ft for a 4 m = 13.1 ft approaching roadway.
Vertical Clearance: 4.05 m = 13.3 ft and Navigational Clearance: 0 = N/A
Location
Henniker [35540]: Merrimack County [013], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 5
3.6 MI FR DEERING TL
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 33.7 metric ton = 37.1 tons (Load Factor(LF) [1])
Inventory: 20.2 metric ton = 22.2 tons (Load Factor(LF) [1])
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: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: October 1999 [1099] 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: 205 (2019) and Trucks: 4%
Future ADT: 303 (In 2041 )
WESTERN AVE over CANAL (Route: 0)
Num:12000960010500x
Open: no restriction [A]
Built: 1929, Reconstructed: 2015
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): Concrete [1] Box beam or girders - Multiple [05]
Approach Span(s): Other [00]
Deck: Concrete Precast Panels [2] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 13.7 m = 44.9 ft
Main Spans: 1 at 12.4 m = 40.7 ft
Approach Spans: 0
Skew: 25
Width, Roadway: 7 m = 23.0 ft (2 Lanes) and Out-To-Out: 7.9 m = 25.9 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
Henniker [35540]: Merrimack County [013], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 5
2.9 MI FR HILLSBOROUGH T
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: HL93 [A]
Operating: 50.3 metric ton = 55.3 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 38.8 metric ton = 42.7 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Equal to present desirable criteria [8] 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: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 1.1 km = 0.7 mi
Traffic
ADT: 91 (2019) and Trucks: 4%
Future ADT: 134 (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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