Nh175 over Pemigewasset River

Fair Condition50 years old682 vehicles/day

Location

StateNew Hampshire
CountyGrafton
Location0.5 Mi East Jct US 3
CarriesNh175
CrossesPemigewasset River
Coordinates43.97528, -71.67946

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length279.9 ft (85.3 m)
Max Span105.0 ft (32 m)
Deck Width34.4 ft (10.5 m)
Deck Area895.6 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic682 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Structure Number028401970008500

Nearby Bridges