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Nearby Bridges in NBI 2021: 2


ST113 /ST3A/KENDLL over WATER MERRIMACK RIVER (Route: 113)
Num:T090012ENDOTNBIx
Open: no restriction [A]
Built: 1930, Reconstructed: 2013
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Arch - Thru [12]
Approach Span(s): Concrete [1] Slab [01]
Deck: Closed Grating [4] with Wearing Surface: Epoxy Overlay [5]
Bridge Dimensions
Length: 180 m = 590.6 ft
Main Spans: 1 at 166.7 m = 546.9 ft
Approach Spans: 1
Skew: 0
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 12.7 m = 41.7 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 4.39 m = 14.4 ft and Navigational Clearance: 0 = N/A
Location
Tyngsborough [71025]: Middlesex County [017], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 4
JUST EAST OF MIDDLESEX RD
Condition
Deck: Good [7]
Superstructure: Fair [5]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 38.9 metric ton = 42.8 tons (Load Factor(LF) [1])
Inventory: 32.9 metric ton = 36.2 tons (Load Factor(LF) [1])
Appraisal
Structural: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present minimum criteria [6]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for assessed or calculated scour conditions; field review indicates action is required. [4]
Inspections
Date: July 1999 [799] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 2.3 km = 1.4 mi
Traffic
ADT: 31000 (2019) and Trucks: 4%
Future ADT: 35218 (In 2033 )
ST113 /ST3A/KENDLL over RR BMRR (Route: 113)
Num:T090022EMDOTNBIx
Open: no restriction [A]
Built: 1930, Reconstructed: 2012
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0.1 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: 20.4 m = 66.9 ft
Main Spans: 1 at 18 m = 59.1 ft
Approach Spans: 0
Skew: 5
Width, Roadway: 9.1 m = 29.9 ft (2 Lanes) and Out-To-Out: 12.8 m = 42.0 ft for a 9.1 m = 29.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Tyngsborough [71025]: Middlesex County [017], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 4
AT TYNGSBOROUGH BRIDGE
Condition
Deck: Good [7]
Superstructure: Very Good [8]
Substructure: Satisfactory [6]
Loading
Design: MS 18 / HS 20 [5]
Operating: 78.9 metric ton = 86.8 tons (Load Factor(LF) [1])
Inventory: 47.3 metric ton = 52.0 tons (Load Factor(LF) [1])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Basically intolerable requiring high priority of corrrective action [3]
Road Alignment: Equal to present desirable criteria [8]
Waterway: N/A [N] and Bridge not over waterway. [N]
Inspections
Date: October 2020 [1020] and Frequency: 24
Future Work
Work Needed: Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Bridge Detour: 2.3 km = 1.4 mi
Traffic
ADT: 22300 (2020) and Trucks: 10%
Future ADT: 16741 (In 2033 )

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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