Structure 23400960012000 · Rockingham County, NH

Nh107 over I-95

Carries Nh107 over I-95, .8 Mi N Of Mass Sl.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT222 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

222 ft end to end, longest span 117 ft: about 3 semi-trucks nose to tail. 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 multi-beam bridge.

Built1967rebuilt 2014
Length222.4 ft67.8 m
Daily traffic22,291counted 2023
Last inspectedJune 2024every 24 months

Location

StateNew Hampshire
CountyRockingham
Location.8 Mi N Of Mass Sl
CarriesNh107
CrossesI-95
Coordinates42.89461, -70.87995

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length222.4 ft (67.8 m)
Max Span117.1 ft (35.7 m)
Deck Width74.1 ft (22.6 m)
Deck Area1532.3 sq m
Main Spans2
Year Built1967 (reconstructed 2014)

Traffic

Avg Daily Traffic22,291 (2023)
Truck Traffic7%
Lanes On Bridge5
Lanes Under Bridge8

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number023400960012000

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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