Brown County Bridge Report Card

Brown County scores 74 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C74 / 100

Local infrastructure snapshot

Brown County, Minnesota

Brown County has 108 bridges in the National Bridge Inventory, with 3 rated poor and 7 rated scour-critical. Its poor-condition share of 2.8% is at or below the 4.5% statewide average. Poor-condition bridges carry about 7,355 daily vehicle crossings.

108Total Bridges

3Poor (2.8%)

38Fair (35.2%)

7Scour-Critical

Quote-Ready Local Facts

2.8%of county bridges are in poor condition, compared with 4.5% statewide and 6.7% nationally.

7,355daily vehicle crossings are on poor-condition bridges in the county.

7bridges are rated scour-critical, or 6.5% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Brown County a Bridge Condition Exposure Score of 74/100 (C). The county has 108 bridges in the National Bridge Inventory, including 3 in poor condition and 7 rated scour-critical. Poor-condition bridges carry about 7,355 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	2.8%	5.6
Poor-condition traffic exposure	25	9.4% of measured traffic	7.1
Scour-critical bridge share	20	6.5%	13.0
Average age vs national baseline	10	43 years vs 48 nationally	0.0
Traffic-data completeness	5	78,138 measured daily crossings	0.0

Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.

County Comparisons

County Poor-Condition Share	2.8%
State Poor-Condition Share	4.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	6.5%
Average Bridge Age	43 years
Poor-Condition Traffic Exposure	7,355 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeMsas 110 over Minnesota River — 6,924 vehicles/day Oldest Listed BridgeMn 4 over Spring Creek — built in 1930 All County BridgesBrowse every bridge record in Brown County.

Top Bridges to Watch in Brown County

Bridge	Reason	Condition	Daily Traffic	Year Built
Msas 110 over Minnesota River	Poor condition + traffic exposure	Poor	6,924	1978
Csah 5 over Little Cottonwood River	Poor condition + traffic exposure	Poor	402	1951
T 38 over Little Cottonwood River	Poor condition + traffic exposure	Poor	29	1980
Mn 15 over Cottonwood River	Scour-critical foundation rating	Fair	6,200	1983
Csah 8 over Sleepy Eye Creek	Scour-critical foundation rating	Fair	574	1968
Csah 24 over Little Cottonwood River	Scour-critical foundation rating	Fair	492	1979
Csah 22 over Little Cottonwood River	Scour-critical foundation rating	Good	300	1977
Csah 3 over Mound Creek	Scour-critical foundation rating	Fair	127	1969
T 205 over Sleepy Eye Creek	Scour-critical foundation rating	Good	71	1996
US 14 over Front St; Cp Rr	High traffic	Good	8,262	2018

Important safety note

Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.