Bridge Safety in Minnesota

13,551 bridges — 609 Poor condition — avg age 39 years.

Bridge Inventory

Total Bridges13,551
Good Condition7,636
Fair Condition5,306
Poor Condition609
Oldest BridgeBuilt 1884
Average Age39 years

Condition Summary

% Good56.4%
% Fair39.2%
% Poor4.5%

Highest-Traffic Poor Condition Bridges in Minnesota

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

Bridge Condition Year Built ADT Length
UP RR Cliff Rd (CSAH32) Poor 1959 94,603
Minnesota River Poor 1981 44,357
Minnesota River Poor 1981 44,357
I 35W Poor 1964 42,500
BIKE PATH Poor 1986 34,708
Shingle Creek Poor 1964 32,146
Shingle Creek Poor 1991 32,146
ST LOUIS R; RR STREET Poor 1961 28,098
BNSF; DAK RR; ST Poor 1973 23,800
MINN R UP RR; STREET Poor 1985 22,949
NB ON RAMP; TH 280 SB Poor 1967 22,391
CN RR Poor 2011 22,000
CEDAR AVE Poor 1967 21,982
CP RAIL Poor 1927 19,510
PED-BIKE TRAIL Poor 1951 19,100
MISSISSIPPI RIVER; RR Poor 1926 17,600
CP RAIL Poor 1967 17,200
N RIVERFRONT DR Poor 1977 16,250
I 35W Poor 1969 15,800
N RIVERFRONT DR Poor 1977 15,742

Oldest Bridges in Minnesota

Bridge Condition Year Built Age ADT
RCRRA Fair 1884 142 yrs 21,524
E CHAN MISSISSIPPI RIVER Fair 1887 139 yrs 2,533
MINNEHAHA CREEK Poor 1890 136 yrs 4,334
BEAVER CREEK Poor 1890 136 yrs 1
BNSF RR Fair 1893 133 yrs 1,738
South Fork Zumbro River Poor 1895 131 yrs 75
S BR ROOT RIVER Poor 1899 127 yrs 170
N FK CROW RIVER Poor 1899 127 yrs 24
STREAM Fair 1900 126 yrs 6,908
STREAM Poor 1900 126 yrs 30

Bridge Safety in Minnesota

Bridge condition data for Minnesota 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.