Structure A07016BHVDOTNBI · Essex County, MA

I 95 SB over Water Merrimack River

Carries I 95 SB over Water Merrimack River, At Merrimac River.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,300 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,300 ft end to end: about 3.6 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a through arch.

Built20179 years old
Length1299.9 ft396.2 m
Daily traffic39,590counted 2024
Last inspectedApril 2024every 24 months

Location

StateMassachusetts
CountyEssex
LocationAt Merrimac River
CarriesI 95 SB
CrossesWater Merrimack River
Coordinates42.83524, -70.91098

Physical Characteristics

MaterialSteel
DesignArch - Thru
Total Length1299.9 ft (396.2 m)
Max Span480.0 ft (146.3 m)
Deck Width84.3 ft (25.7 m)
Deck Area10182.3 sq m
Main Spans1
Year Built2017

Traffic

Avg Daily Traffic39,590 (2024)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberA07016BHVDOTNBI

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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