Vehicle Safety
Recalls Search 320,000+ NHTSA safety recalls Complaints 2.1M+ consumer safety complaints TSBs 4.7M technical service bulletins VIN Lookup Decode any vehicle VIN instantly OBD Codes 12,000+ diagnostic trouble codes Fuel Economy EPA MPG data for all vehicles Safety Ratings 11,700+ NHTSA crash test ratings Investigations 5,300+ NHTSA defect investigations Statistics Recall trends & safety analysis
Consumer Safety
Product Safety 9,700+ CPSC product recalls Food Safety 28,600+ FDA food recalls Pet Safety 1.3M FDA animal adverse events Drug Safety 17,500+ FDA drug recalls Device Safety 38,400+ FDA device recalls Workplace Safety 102,900+ OSHA injury reports Brand History Cross-category recall lookup by company
Infrastructure
Bridge Safety 624,000 bridge inspections Aviation Safety 30,000+ NTSB aviation events Dam Safety 92,600 dam safety records Water Safety 433,000+ public water systems Railroad Safety 438,000+ rail crossings Pipeline Safety 8,800+ pipeline incidents
Public Health
Nursing Homes 14,700 CMS rated facilities Environmental 80,000+ hazardous sites & releases

Historic Bridges in New Hampshire

716 bridges built before 1951 in New Hampshire still in service today.

Bridges Built Before 1951

The United States has 716 bridges in New Hampshire built before 1951 that remain in active service. These structures are 75+ years old — many predate modern engineering codes and were not designed for today's traffic volumes and vehicle weights. The average design life of a bridge is 50 years, making these aging structures a significant infrastructure concern.

Clear
Bridge State Condition Year Built Age (Years) ADT
NHRR CONSTITUTION AV. New Hampshire Fair 1949 77 3,658
SMITH RIVER New Hampshire Fair 1949 77 142
ASHUELOT RIVER New Hampshire Fair 1949 77 2,456
HAMPTON RIVER New Hampshire Poor 1949 77 9,402
SACO RIVER New Hampshire Fair 1949 77 3,004
GREAT BROOK New Hampshire Fair 1949 77 957
NHRR New Hampshire Poor 1949 77 9,117
ASHUELOT RIVER New Hampshire Fair 1949 77 2,274
HALFWAY BROOK New Hampshire Good 1949 77 256
MID BR PISCATAQUOG RIVER New Hampshire Fair 1949 77 2,789
EASTMAN BROOK New Hampshire Fair 1949 77 451
MOOSE RIVER New Hampshire Fair 1949 77 96
S BRANCH BAKER RIVER New Hampshire Fair 1949 77 144
DECEPTION BROOK New Hampshire Fair 1949 77 100
TRIB. TO AMMONOOSUC New Hampshire Fair 1949 77 99
UPPER AMMONOOSUC New Hampshire Fair 1949 77 50
MAD RIVER New Hampshire Fair 1949 77 50
PATTEN BROOK New Hampshire Poor 1950 76 289
PATTEN BROOK New Hampshire Fair 1950 76 96
BEAR BROOK New Hampshire Fair 1950 76 303
SUNCOOK RIVER New Hampshire Fair 1950 76 96
WEST BRANCH BROOK New Hampshire Poor 1950 76 96
POND BROOK New Hampshire Fair 1950 76 435
INDIAN RIVER New Hampshire Fair 1950 76 1,436
CATSBANE BROOK New Hampshire Good 1950 76 481
SACO RIVER New Hampshire Fair 1950 76 4,649
KEARSARGE BROOK New Hampshire Good 1950 76 510
MILL BROOK New Hampshire Fair 1950 76 149
BLOW-ME-DOWN-BROOK New Hampshire Poor 1950 76 112
WILD MEADOW BROOK New Hampshire Fair 1950 76 96
WILD MEADOW BROOK New Hampshire Fair 1950 76 96
SMITH RIVER New Hampshire Poor 1950 76 96
BOG POND OUTLET New Hampshire Fair 1950 76 96
FRAZIER BROOK New Hampshire Poor 1950 76 75
FRAZIER BROOK New Hampshire Fair 1950 76 96
FRAZIER BROOK New Hampshire Poor 1950 76 73
SALMON FALLS RIVER New Hampshire Poor 1950 76 6,132
SUNCOOK RIVER New Hampshire Good 1950 76 1,540
PEABODY RIVER New Hampshire Fair 1950 76 4,148
ACCESS ROAD New Hampshire Fair 1950 76 86,429
MCDOWELL RESERVOIR New Hampshire Poor 1950 76 247
MCDOWELL RESERVOIR New Hampshire Good 1950 76 488
MINNEWAWA BROOK New Hampshire Poor 1950 76 96
BEMIS BROOK New Hampshire Good 1950 76 3,004
NASHUA RIVER New Hampshire Fair 1950 76 12,103
CONTOOCOOK RIVER New Hampshire Fair 1950 76 50
CHERRY MILL BROOK New Hampshire Good 1950 76 519
BEAVER BROOK New Hampshire Good 1950 76 4,580
OTTER BROOK New Hampshire Fair 1950 76 1,586
AMMONOOSUC RIVER New Hampshire Good 1950 76 7,962

About Historic Bridge Data

Bridges built before 1951 are classified as historic in this database. Many were designed to 1940s standards with lower load limits and narrower lanes. While FHWA requires regular inspections of all bridges regardless of age, older structures often require more frequent monitoring and rehabilitation investment.

All Bridges Poor Condition Scour Critical Bridge Stats