HWY Marstn ST NB over I 495 Ramps A & K

Good Condition24 years old3,600 vehicles/day

Location

StateMassachusetts
CountyEssex
Location.25 Mi. S. Commonwealth D
CarriesHWY Marstn ST NB
CrossesI 495 Ramps A & K
Coordinates42.71132, -71.13942

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length170.6 ft (52 m)
Max Span100.1 ft (30.5 m)
Deck Width26.6 ft (8.1 m)
Deck Area421.2 sq m
Main Spans2
Year Built2002

Traffic

Avg Daily Traffic3,600 (2017)
Truck Traffic7%
Lanes On Bridge1
Lanes Under Bridge3

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure NumberL04043AJLDOTNBI

Nearby Bridges

I 495 SB over HWY Ramps A & B 0.1 mi Fair HWY Marstn ST NB over I 495 Ramp J 0.1 mi Good I 495 NB over HWY Ramps A & B 0.1 mi Fair I 495 Ramp E over I 495 Ramps A & B 0.1 mi Fair I 495 Ramp K over HWY Commonwealth DR 0.2 mi Fair I 495 SB over HWY Commonwealth DR 0.2 mi Fair I 495 NB over HWY Commonwealth DR 0.2 mi Fair I 495 & Access Rps over Water Merrimack River 0.3 mi Poor I 495 Upper Level over I 495 Lower Level 0.3 mi Poor I 495 Rp M&merrk S over Water Shawsheen River 0.5 mi Fair