I 495 NB over HWY Ramps A & B

Fair Condition64 years old57,480 vehicles/day

Location

StateMassachusetts
CountyEssex
Location.3 Mi N Merrimac River
CarriesI 495 NB
CrossesHWY Ramps A & B
Coordinates42.71158, -71.13724

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length149.0 ft (45.4 m)
Max Span85.0 ft (25.9 m)
Deck Width70.5 ft (21.5 m)
Deck Area976.1 sq m
Main Spans3
Year Built1962 (reconstructed 2002)

Traffic

Avg Daily Traffic57,480 (2024)
Truck Traffic5%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last Inspection824
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Structure NumberL040392X7DOTNBI

Nearby Bridges

I 495 Ramp E over I 495 Ramps A & B 0.0 mi Fair I 495 SB over HWY Ramps A & B 0.0 mi Fair HWY Marstn ST NB over I 495 Ramps A & K 0.1 mi Good I 495 NB over HWY Commonwealth DR 0.2 mi Fair I 495 SB over HWY Commonwealth DR 0.2 mi Fair I 495 Ramp K over HWY Commonwealth DR 0.2 mi Fair HWY Marstn ST NB over I 495 Ramp J 0.2 mi Good I 495 & Access Rps over Water Merrimack River 0.4 mi Poor I 495 Upper Level over I 495 Lower Level 0.4 mi Poor I 495 Rp M&merrk S over Water Shawsheen River 0.5 mi Fair