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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
LITTLE HARBOR New Hampshire 1942 3,359 77.3 m
EXETER RIVER New Hampshire 1978 3,259 24.1 m
MARTIN BROOK New Hampshire 1929 2,956 8.2 m
SMITH RIVER New Hampshire 1940 2,913 32.3 m
NEWFOUND RIVER New Hampshire 1949 2,878 21.9 m
MAD RIVER New Hampshire 1979 2,828 164.6 m
LOST RIVER New Hampshire 1931 2,784 21.0 m
CONNECTICUT RIVER New Hampshire 1866 2,722 136.9 m
GUNSTOCK RIVER New Hampshire 1941 2,690 7.6 m
NHRR(ABD) New Hampshire 1929 2,674 54.6 m
SUCKER BROOK New Hampshire 1929 2,674 8.5 m
SUCKER BROOK New Hampshire 1929 2,674 8.5 m
BLACKWATER RIVER New Hampshire 1933 2,652 22.9 m
ASH BROOK New Hampshire 1970 2,610 9.1 m
MONADNOCK MILL CANAL New Hampshire 1922 2,233 8.5 m
NHRR(ABD) New Hampshire 1930 2,191 22.6 m
CONNECTICUT RIVER New Hampshire 1937 2,160 143.6 m
SMITH RIVER New Hampshire 1929 2,087 21.3 m
AMMONOOSUC RIVER New Hampshire 1960 2,087 67.7 m
LITTLE COHAS BROOK New Hampshire 1974 1,964 7.3 m
PEMIGEWASSET RIVER New Hampshire 1928 1,917 66.1 m
PISCATAQUOG RIVER New Hampshire 1940 1,866 35.7 m
SOUHEGAN RIVER New Hampshire 1938 1,866 52.7 m
EXETER RIVER New Hampshire 1932 1,854 9.4 m
COCHECO RIVER New Hampshire 1953 1,773 19.5 m
WARNER RIVER New Hampshire 1937 1,581 37.5 m
CONNECTICUT RIVER New Hampshire 1934 1,508 162.5 m
BLACKWATER RIVER New Hampshire 1941 1,472 50.6 m
INDIAN RIVER New Hampshire 1948 1,436 10.7 m
BLACK BROOK New Hampshire 1994 1,387 12.8 m
SUGAR RIVER New Hampshire 1974 1,376 59.1 m
I-89 SB WARNER RIVER New Hampshire 1966 1,372 74.7 m
BOG BROOK New Hampshire 1929 1,193 12.2 m
MINNEWAWA BROOK New Hampshire 1939 1,191 27.4 m
BLOOD BROOK New Hampshire 1901 1,167 14.9 m
AMMONOOSUC RIVER New Hampshire 1927 1,167 37.8 m
PARTRIDGE BROOK New Hampshire 1937 1,167 44.9 m
GRANT BROOK New Hampshire 1952 1,132 12.5 m
HODGSON BROOK New Hampshire 1940 1,096 11.3 m
BLOODS BROOK New Hampshire 1952 1,089 19.8 m
E BR SACO RIVER New Hampshire 1928 1,078 24.4 m
OLIVERIAN BROOK New Hampshire 1960 1,072 16.5 m
SUGAR RIVER New Hampshire 1967 1,067 85.6 m
BAKER POND BROOK New Hampshire 1929 826 7.3 m
BRACKETT BROOK New Hampshire 1929 826 12.2 m
WHITE BROOK New Hampshire 1940 826 7.0 m
COCHECO RIVER New Hampshire 1926 770 11.9 m
CONTOOCOOK RIVER New Hampshire 1933 712 68.3 m
PEMIGEWASSET RIVER New Hampshire 1939 674 55.8 m
INDIAN RIVER New Hampshire 1930 655 16.5 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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