Sibley County Bridge Report Card

Sibley County scores 94 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A94 / 100

Local infrastructure snapshot

Sibley County, Minnesota

Sibley County has 101 bridges in the National Bridge Inventory, with 2 rated poor and 1 rated scour-critical. Its poor-condition share of 2.0% is at or below the 4.5% statewide average. Poor-condition bridges carry about 358 daily vehicle crossings.

101Total Bridges

2Poor (2.0%)

33Fair (32.7%)

1Scour-Critical

Quote-Ready Local Facts

2.0%of county bridges are in poor condition, compared with 4.5% statewide and 6.7% nationally.

358daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 1.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Sibley County a Bridge Condition Exposure Score of 94/100 (A). The county has 101 bridges in the National Bridge Inventory, including 2 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 358 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	2.0%	4.0
Poor-condition traffic exposure	25	0.4% of measured traffic	0.3
Scour-critical bridge share	20	1.0%	2.0
Average age vs national baseline	10	30 years vs 48 nationally	0.0
Traffic-data completeness	5	98,504 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	2.0%
State Poor-Condition Share	4.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	1.0%
Average Bridge Age	30 years
Poor-Condition Traffic Exposure	358 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeCsah 18 over Stream — 294 vehicles/day Oldest Listed BridgeCsah 18 over Stream — built in 1930 All County BridgesBrowse every bridge record in Sibley County.

Top Bridges to Watch in Sibley County

Bridge	Reason	Condition	Daily Traffic	Year Built
Csah 18 over Stream	Poor condition + traffic exposure	Poor	294	1930
T 71 over High Island Creek	Poor condition + traffic exposure	Poor	64	1940
Csah 9 over High Island Creek	Scour-critical foundation rating	Fair	1,165	1941
US 169 over Ditch	High traffic	Fair	15,800	1960
US 169 over Minnesota River	High traffic	Fair	14,500	2005
Mn 93 over US 169	High traffic	Fair	5,120	1961
Mn 93 over Minnesota River	High traffic	Fair	5,120	1984
Mn 25 over Minnesota River	High traffic	Fair	5,036	2005
Mn 15 over Jud Ditch # 1a	High traffic	Good	3,921	1985
Mn 15 over Mid Br Rush River(cd#23a	High traffic	Good	3,783	1985

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.