Structure 22200950009700 · Strafford County, NH

Nh 16 Sp Tpk over Nh 16 Connector

Carries Nh 16 Sp Tpk over Nh 16 Connector, 2.5 Mi S Of Milton Tl.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT107 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

107 ft end to end. Lengths and the car 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.

Built1978rebuilt 2012
Length107.3 ft32.7 m
Daily traffic23,195counted 2023
Last inspectedJuly 2023every 24 months

Location

StateNew Hampshire
CountyStrafford
Location2.5 Mi S Of Milton Tl
CarriesNh 16 Sp Tpk
CrossesNh 16 Connector
Coordinates43.32746, -70.98589

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length107.3 ft (32.7 m)
Max Span103.3 ft (31.5 m)
Deck Width128.6 ft (39.2 m)
Deck Area1281.8 sq m
Main Spans1
Year Built1978 (reconstructed 2012)

Traffic

Avg Daily Traffic23,195 (2023)
Truck Traffic8%
Lanes On Bridge5
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalNot applicable
Structure Number022200950009700

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.

Nearby Bridges