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Poor Condition Bridges in New Hampshire

192 bridges rated Poor condition in New Hampshire. FHWA National Bridge Inventory.

Bridges Rated Poor Condition

A bridge is rated Poor when one or more of its major components (deck, superstructure, or substructure) has a condition rating of 4 or below on the FHWA 0–9 scale. Poor condition does not mean imminent danger of collapse, but indicates significant deterioration requiring priority maintenance or replacement. There are 192 such bridges in New Hampshire.

Clear
Bridge State Condition Year Built ADT Length
MILL CREEK New Hampshire 1940 639 12.8 m
BEAVER BROOK New Hampshire 1932 629 9.1 m
I-93 US 4 New Hampshire 1958 612 58.5 m
ROARING BROOK New Hampshire 1955 607 10.4 m
POWWOW RIVER New Hampshire 1976 586 10.1 m
BLOW-ME-DOWN BROOK New Hampshire 1954 574 22.3 m
RIDDLE BROOK New Hampshire 2000 571 7.9 m
LANCY BROOK New Hampshire 1987 559 6.7 m
LAMPREY RIVER New Hampshire 1914 547 15.8 m
NECRR New Hampshire 1992 534 21.9 m
BABOOSIC BROOK New Hampshire 1928 511 7.0 m
NHRR New Hampshire 1940 510 36.9 m
HODGSON BROOK New Hampshire 1940 480 11.0 m
BLACKWATER RIVER New Hampshire 1954 457 22.3 m
MOHAWK RIVER New Hampshire 1935 451 17.1 m
CSX New Hampshire 1920 438 12.5 m
HAM BRANCH New Hampshire 1920 436 15.8 m
BAKER RIVER New Hampshire 1928 410 31.1 m
SOUCOOK RIVER New Hampshire 1934 372 44.5 m
INDIAN RIVER New Hampshire 1956 365 15.5 m
BEAVER BROOK New Hampshire 1970 356 6.1 m
PATTEN BROOK New Hampshire 1950 289 9.1 m
ANDROSCOGGIN RIVER New Hampshire 1900 281 55.5 m
COLD BROOK New Hampshire 1922 253 7.3 m
BROOK New Hampshire 1920 250 7.3 m
MCDOWELL RESERVOIR New Hampshire 1950 247 68.3 m
JACOBS BROOK New Hampshire 1930 244 15.8 m
EXETER RIVER New Hampshire 1941 234 14.3 m
ROARING BROOK New Hampshire 1950 233 13.1 m
MARTINS BROOK New Hampshire 1940 219 8.5 m
MAPLE FALLS BROOK New Hampshire 1850 208 8.8 m
EXETER RIVER New Hampshire 1986 208 8.5 m
POWWOW RIVER New Hampshire 1920 208 9.4 m
PERRY STREAM New Hampshire 1860 191 23.8 m
COLD RIVER New Hampshire 1869 164 29.3 m
BLOW-ME-DOWN-BROOK New Hampshire 1950 112 7.0 m
MAD RIVER New Hampshire 1986 110 10.7 m
MEADOW BROOK New Hampshire 1930 108 7.3 m
GREAT BROOK New Hampshire 1936 107 11.6 m
BURNT KNOLL New Hampshire 1975 100 7.3 m
BLACKWATER RIVER New Hampshire 1882 96 19.8 m
WEST BRANCH BROOK New Hampshire 1950 96 8.2 m
CLAY BROOK New Hampshire 1900 96 6.4 m
SOUTH RIVER New Hampshire 1920 96 11.0 m
PHILLIPS BROOK New Hampshire 1940 96 12.2 m
ASHUELOT RIVER New Hampshire 1960 96 22.6 m
CHICKWOLNEPY STREAM New Hampshire 1950 96 11.8 m
STEARNS BROOK New Hampshire 1950 96 11.9 m
NORTHEAST POND New Hampshire 1948 96 28.7 m
SUGAR RIVER New Hampshire 1976 96 11.9 m

About Poor Condition Bridge Ratings

FHWA rates bridge components on a 0–9 scale. A rating of 4 or below on any major component (deck, superstructure, substructure) classifies the bridge as Poor condition. The bridge remains open to traffic but requires priority attention. Bridges rated 0–2 are immediately closed.

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