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Nearby Bridges in NBI 2021: 3


SEWALLS FALLS ROAD over MERRIMACK RIVER (Route: 0)
Num:5200700011700x
Open: no restriction [A]
Built: 2016, 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 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: 124.1 m = 407.2 ft
Main Spans: 3 at 44.2 m = 145.0 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 9.5 m = 31.2 ft (2 Lanes) and Out-To-Out: 12.2 m = 40.0 ft for a 9.8 m = 32.2 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Concord [14200]: Merrimack County [013], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 5
0.3 MI JCT RTE 132
Condition
Deck: Excellent [9]
Superstructure: Excellent [9]
Substructure: Excellent [9]
Loading
Design: HL93 [A]
Operating: 80.2 metric ton = 88.2 tons (Load and Resistance Factor(LRFR) [3])
Inventory: 61.9 metric ton = 68.1 tons (Load and Resistance Factor(LRFR) [3])
Appraisal
Structural: Superior to present desirable criteria [9]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
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: 0.5 km = 0.3 mi
Traffic
ADT: 4195 (2019) and Trucks: 3%
Future ADT: 6208 (In 2041 )
I-93:US 4 SB over SEWALLS FALLS ROAD (Route: 93)
Num:5200680012100x
Open: no restriction [A]
Built: 1959, 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] Frame [07]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 12.5 m = 41.0 ft
Main Spans: 1 at 10.7 m = 35.1 ft
Approach Spans: 0
Skew: 4
Width, Roadway: 11.6 m = 38.1 ft (2 Lanes) and Out-To-Out: 13.7 m = 44.9 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
Concord [14200]: Merrimack County [013], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 5
1.4MI SO OF JCT RT 3 BYP.
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 71.7 metric ton = 78.9 tons (Load Factor(LF) [1])
Inventory: 42.6 metric ton = 46.9 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: May 1999 [599] 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 km = 0.6 mi
Traffic
ADT: 24447 (2019) and Trucks: 6%
Future ADT: 36181 (In 2041 )
I-93:US 4 NB over SEWALLS FALLS ROAD (Route: 93)
Num:5200680012200x
Open: no restriction [A]
Built: 1959, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Concrete [1] Frame [07]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 12.5 m = 41.0 ft
Main Spans: 1 at 10.7 m = 35.1 ft
Approach Spans: 0
Skew: 15
Width, Roadway: 11.6 m = 38.1 ft (2 Lanes) and Out-To-Out: 14 m = 45.9 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
Concord [14200]: Merrimack County [013], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 5
1.4 MI. S. JCT. RT 3 BYP.
Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 18+Mod / HS 20+Mod [6]
Operating: 71.7 metric ton = 78.9 tons (Load Factor(LF) [1])
Inventory: 42.6 metric ton = 46.9 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: May 1999 [599] 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: 24248 (2019) and Trucks: 6%
Future ADT: 35887 (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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