I 495 UPPER LEVEL over I 495 LOWER LEVEL
AT MERRIMAC RIVER · County 009, Massachusetts · Built 1962 · 6 Lanes · 73,359 vehicles/day
Structurally Deficient
— One or more key components rated 4 (Poor) or below
Overall
Deck
5
Fair
Superstructure
5
Fair
Substructure
4
Poor
Condition Ratings
| Component | Rating | Description |
|---|---|---|
| Deck | 5 | Fair |
| Superstructure | 5 | Fair |
| Substructure | 4 | Poor |
Location
42.706394, -71.138889
This bridge is in worse condition than 83.6% of bridges in County 009. The average bridge in Massachusetts is 0 years old; this one is 64 years old.
Nearby Bridges
I 495 & ACCESS RPS over WATER MERRIMACK RIVER
Built 1962
I 495 RP M&MERRK S over WATER SHAWSHEEN RIVER
Built 1963
I 495 over COMB MERRIMAC ST & MBTA
Built 1962
I 495 NB RAMP N over COMB SUTTON ST & MBTA
Built 1963
I 495 SB RAMP L over COMB MERRIMACK ST & MBT
Built 1963
HWY MARSTN ST NB over I 495 RAMP J
Built 2002
HWY MARSTN ST NB over I 495 RAMPS A & K
Built 2002
I 495 SB over HWY RAMPS A & B
Built 1962
I 495 RAMP E over I 495 RAMPS A & B
Built 2004
I 495 NB over HWY RAMPS A & B
Built 1962
Bridge Details
- Structure #
- L040352XDDOTNBI
- Year Built
- 1962
- Reconstructed
- 2006
- Length
- 319.7 m (1048.9 ft)
- Max Span
- 42.7 m
- Width
- 28.4 m (93.2 ft)
- Lanes
- 6
- Daily Traffic
- 73,359
- Material
- Steel
- Design
- Stringer/Multi-beam or Girder
- Owner
- State Highway Agency
- Last Inspected
- N/A
- Est. Improvement
- $59,000,000
- Total Project Cost
- $88,501,000
Data from FHWA National Bridge Inventory. Bridge conditions may have changed since the last inspection. This site is not affiliated with FHWA. Do not use for route clearance purposes.