Bridge Street EB over I-293 Nh 3a Csx Merr R

Fair Condition38 years old8,778 vehicles/day

Location

StateNew Hampshire
CountyHillsborough
Location0.4 Mi From Elm ST Inv#8
CarriesBridge Street EB
CrossesI-293 Nh 3a Csx Merr R
Coordinates42.99404, -71.46949

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1540.0 ft (469.4 m)
Max Span169.9 ft (51.8 m)
Deck Width37.1 ft (11.3 m)
Deck Area5304.2 sq m
Main Spans11
Year Built1988

Traffic

Avg Daily Traffic8,778 (2023)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge12

Inspection & Ownership

Last Inspection724
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number016101230007300

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