Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Prestressed concrete [5] Stringer/Multi-beam or girder [02]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 117.5 m = 385.5 ft
Main Spans: 4 at 24.4 m = 80.1 ft
Approach Spans: 2
Skew: 10
Width, Roadway: 16.5 m = 54.1 ft (4 Lanes) and Out-To-Out: 18.2 m = 59.7 ft for a 18.3 m = 60.0 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A
Location
Newburyport [45245]: Essex County [009], Massachusetts [25]
Owned by State Highway Agency [01], DOT District: 4
.1 MI S MERRIMAC RIVER
Condition
Deck: Fair [5]
Superstructure: Poor [4]
Substructure: Fair [5]
Loading
Design: MS 18 / HS 20 [5]
Operating: 52.8 metric ton = 58.1 tons (Load Factor(LF) [1])
Inventory: 31.6 metric ton = 34.8 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
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: 12
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.8 km = 0.5 mi
Traffic
ADT: 8000 (2019) and Trucks: 5%
Future ADT: 24637 (In 2031
)