I 495 over Comb Merrimac ST & Mbta

Fair Condition64 years old96,595 vehicles/day

Location

StateMassachusetts
CountyEssex
Location.32 Km S Merrimac River
CarriesI 495
CrossesComb Merrimac ST & Mbta
Coordinates42.70365, -71.13989

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure5 (Fair)
Substructure5 (Fair)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length391.1 ft (119.2 m)
Max Span102.7 ft (31.3 m)
Deck Width95.1 ft (29 m)
Deck Area3456.8 sq m
Main Spans6
Year Built1962

Traffic

Avg Daily Traffic96,595 (2019)
Truck Traffic12%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last Inspection125
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Structure NumberL040372XBDOTNBI

Nearby Bridges

I 495 NB Ramp N over Comb Sutton ST & Mbta 0.0 mi Poor I 495 SB Ramp L over Comb Merrimack ST & Mbt 0.0 mi Poor I 495 Rp M&merrk S over Water Shawsheen River 0.1 mi Fair I 495 Upper Level over I 495 Lower Level 0.2 mi Poor I 495 & Access Rps over Water Merrimack River 0.2 mi Poor HWY Loring ST over Water Shawsheen River 0.4 mi Fair I 495 over HWY Massachusetts AVE 0.4 mi Poor HWY Marstn ST NB over I 495 Ramp J 0.4 mi Good HWY Canal ST over Water Spicket River 0.5 mi Good HWY Marstn ST NB over I 495 Ramps A & K 0.5 mi Good