Bridge Safety in Michigan

11,397 bridges, 1,250 Poor condition, avg age 48 years.

Bridge Inventory

Total Bridges11,397
Good Condition3,778
Fair Condition6,369
Poor Condition1,250
Oldest BridgeBuilt 1867
Average Age48 years

Condition Summary

% Good33.1%
% Fair55.9%
% Poor11.0%

Highest-Traffic Poor Condition Bridges in Michigan

Poor condition bridges sorted by daily traffic, the most urgent safety concerns.

Bridge Condition Year Built ADT Length
I-75 & 4 RAMPS Poor 1971 209,200 -
ENT TO FORD PLANT Poor 1971 98,506 -
ECORSE CREEK Poor 1963 92,920 -
M-39 (SOUTHFIELD EXPR) Poor 1970 78,863 -
ECORSE RD Poor 1962 74,175 -
CONRAIL RAISIN R FRONT Poor 1955 67,800 -
M-36 Poor 1960 64,800 -
DAVISON - BROADWAY AVES Poor 1976 63,400 -
CHAVEZ DR Poor 1976 63,400 -
BEECH-DALY RD Poor 1962 60,077 -
CSX RR & NB SERV RD(ABN) Poor 1971 59,000 -
CONRAIL (NO TRACKS)(ABN) Poor 1963 57,075 -
SEXTON KILFOIL DRAIN Poor 1928 53,839 -
US-131 BR (LEONARD) Poor 1961 50,972 -
US-131 BR (LEONARD) Poor 1961 50,972 -
6TH AVE Poor 1963 50,972 -
6TH AVE Poor 1963 50,972 -
GRAND RIVER AVE Poor 1962 44,600 -
GRAND RIVER AVE Poor 1962 44,600 -
HESR Poor 1960 44,350 -

Oldest Bridges in Michigan

Bridge Condition Year Built Age ADT
FLAT RIVER Fair 1867 159 yrs 144
FLAT RIVER Fair 1871 155 yrs 122
HURON RIVER Fair 1876 150 yrs 1,963
ST JOSEPH RIVER Fair 1885 141 yrs 1,144
KALAMAZOO RIVER Fair 1886 140 yrs 2,582
GRAND RIVER Fair 1886 140 yrs 4,550
S FORK OF HAYWORTH Poor 1890 136 yrs 119
GRAND RIVER Fair 1890 136 yrs 1,100
FISH CREEK Fair 1895 131 yrs 30
NORTH MACON DRAIN Fair 1897 129 yrs 21

Bridge Safety in Michigan

Bridge condition data for Michigan comes from the FHWA National Bridge Inventory. All publicly accessible bridges with a span over 20 feet are inspected at least every 24 months by certified bridge inspectors.