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Nearby Bridges in NBI 2021: 5


SCHOOL STREET over NHRR (Route: 0)
Num:25600850004700x
Open: no restriction [A]
Built: 1924, Reconstructed: 1992
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] Slab [01]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface:
Bridge Dimensions
Length: 7.6 m = 24.9 ft
Main Spans: 1 at 6.4 m = 21.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.4 m = 30.8 ft (2 Lanes) and Out-To-Out: 13.2 m = 43.3 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
Tilton [77060]: Belknap County [001], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 3
0.1 MI FROM US 3
Condition
Deck: Satisfactory [6]
Superstructure: Satisfactory [6]
Substructure: Fair [5]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 89.8 metric ton = 98.8 tons (Load Factor(LF) [1])
Inventory: 54.9 metric ton = 60.4 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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: June 2020 [0620] 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: 1503 (2019) and Trucks: 10%
Future ADT: 2224 (In 2041 )
ELM STREET over WINNIPESAUKEE RIVER (Route: 0)
Num:25600860004300x
Open: no restriction [A]
Built: 1977, Reconstructed: N/A [0000]
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): 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: 29 m = 95.1 ft
Main Spans: 1 at 28.3 m = 92.9 ft
Approach Spans: 0
Skew: 5
Width, Roadway: 8.5 m = 27.9 ft (2 Lanes) and Out-To-Out: 12.3 m = 40.4 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
Tilton [77060]: Belknap County [001], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 3
NORTHFIELD TL.
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 24.5 metric ton = 27.0 tons (Load Factor(LF) [1])
Inventory: 16.3 metric ton = 17.9 tons (Load Factor(LF) [1])
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: 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: 9910 (2018) and Trucks: 4%
Future ADT: 14666 (In 2041 )
NH132 over WINNIPESAUKEE RIVER (Route: 132)
Num:19600970014700x
Open: no restriction [A]
Built: 1960, Reconstructed: 2001
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.6 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] 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: 29 m = 95.1 ft
Main Spans: 2 at 14.3 m = 46.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 11.1 m = 36.4 ft (2 Lanes) and Out-To-Out: 15.2 m = 49.9 ft for a 11.9 m = 39.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Northfield [54260]: Merrimack County [013], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 3
NORTHFIELD-TILTON TL
Condition
Deck: Very Good [8]
Superstructure: Very Good [8]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 71.7 metric ton = 78.9 tons (Load Factor(LF) [1])
Inventory: 42.5 metric ton = 46.8 tons (Load Factor(LF) [1])
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 desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Inspections
Date: June 1999 [699] 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: 4966 (2019) and Trucks: 10%
Future ADT: 7349 (In 2041 )
I-93 SB over BAY STREET (Route: 93)
Num:19601080014100x
Open: no restriction [A]
Built: 1960, Reconstructed: 1985
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.4 Miles (0.7 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: 30.8 m = 101.1 ft
Main Spans: 3 at 11.3 m = 37.1 ft
Approach Spans: 0
Skew: 17
Width, Roadway: 12 m = 39.4 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 11.6 m = 38.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Northfield [54260]: Merrimack County [013], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 5
1.7MI S. TILTON T.L.
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 55.1 metric ton = 60.6 tons (Load Factor(LF) [1])
Inventory: 33 metric ton = 36.3 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: June 1999 [699] 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: 2.3 km = 1.4 mi
Traffic
ADT: 15320 (2019) and Trucks: 9%
Future ADT: 22673 (In 2041 )
I-93 NB over BAY STREET (Route: 93)
Num:19601090014000x
Open: no restriction [A]
Built: 1960, Reconstructed: 1985
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 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: 30.8 m = 101.1 ft
Main Spans: 3 at 11.3 m = 37.1 ft
Approach Spans: 0
Skew: 17
Width, Roadway: 12 m = 39.4 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 11.6 m = 38.1 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Northfield [54260]: Merrimack County [013], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 5
1.7 MI S. TILTON TL
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 55.1 metric ton = 60.6 tons (Load Factor(LF) [1])
Inventory: 33 metric ton = 36.3 tons (Load Factor(LF) [1])
Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Equal to present minimum criteria [6]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: June 1999 [699] 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: 2.3 km = 1.4 mi
Traffic
ADT: 15422 (2019) and Trucks: 9%
Future ADT: 22824 (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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