Poor Condition Bridges in Iowa

4,423 bridges rated Poor condition in Iowa. 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 4,423 such bridges in Iowa.

Clear
Bridge State Condition Year Built ADT Length
STREAM Iowa 1950 5 16.2 m
STREAM Iowa 1970 5 10.7 m
EAGLE CREEK Iowa 1975 5 7.3 m
WEST LITTLE RIVER Iowa 1930 5 15.9 m
CEDAR CREEK Iowa 1979 5 12.8 m
SIN CREEK Iowa 1979 5 17.4 m
STREAM Iowa 1940 5 7.9 m
STREAM Iowa 1992 5 16.5 m
STREAM Iowa 1972 5 25.3 m
SPRING CREEK Iowa 1910 5 18.6 m
MINERS CREEK Iowa 1915 4 11.3 m
PRAIRIE CREEK Iowa 1952 1 10.6 m
STREAM Iowa 1920 11.9 m
DEVILS RUN Iowa 1900 9.8 m
BYERS BRANCH CREEK Iowa 1947 6.4 m
BR N CEDAR CREEK Iowa 1940 22.3 m
JORDAN CREEK Iowa 1916 10.1 m
WATERMAN CR Iowa 1915 23.5 m
PIGEON CREEK Iowa 1947 29.9 m
CREEK Iowa 1900 8.5 m
STREAM Iowa 1980 13.1 m
STREAM Iowa 1934 12.2 m
DUTCH CREEK Iowa 1925 12.2 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.