Structure 17701010012700 · Hillsborough County, NH

Pine Hill Road over US 3 Fee Tpk

Carries Pine Hill Road over US 3 Fee Tpk, .2 Mi From Nh 130.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT246 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

246 ft end to end, longest span 123 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.

Built199432 years old
Length246.1 ft75 m
Daily traffic6,836counted 2023
Last inspectedApril 2024every 24 months

Location

StateNew Hampshire
CountyHillsborough
Location.2 Mi From Nh 130
CarriesPine Hill Road
CrossesUS 3 Fee Tpk
Coordinates42.77269, -71.49313

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length246.1 ft (75 m)
Max Span123.0 ft (37.5 m)
Deck Width40.0 ft (12.2 m)
Deck Area915 sq m
Main Spans2
Year Built1994

Traffic

Avg Daily Traffic6,836 (2023)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number017701010012700

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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