Dunn County Bridge Report Card

Dunn County scores 73 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C73 / 100

Local infrastructure snapshot

Dunn County, Wisconsin

Dunn County has 244 bridges in the National Bridge Inventory, with 20 rated poor and 8 rated scour-critical. Its poor-condition share of 8.2% is above the 6.7% statewide average. Poor-condition bridges carry about 47,690 daily vehicle crossings.

244Total Bridges

20Poor (8.2%)

151Fair (61.9%)

8Scour-Critical

Quote-Ready Local Facts

8.2%of county bridges are in poor condition, compared with 6.7% statewide and 6.7% nationally.

47,690daily vehicle crossings are on poor-condition bridges in the county.

8bridges are rated scour-critical, or 3.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Dunn County a Bridge Condition Exposure Score of 73/100 (C). The county has 244 bridges in the National Bridge Inventory, including 20 in poor condition and 8 rated scour-critical. Poor-condition bridges carry about 47,690 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	8.2%	16.4
Poor-condition traffic exposure	25	5.6% of measured traffic	4.2
Scour-critical bridge share	20	3.3%	6.6
Average age vs national baseline	10	44 years vs 48 nationally	0.0
Traffic-data completeness	5	851,952 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	8.2%
State Poor-Condition Share	6.7%
National Poor-Condition Share	6.7%
County Scour-Critical Share	3.3%
Average Bridge Age	44 years
Poor-Condition Traffic Exposure	47,690 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeIH 94 over E Br Wilson Creek — 35,500 vehicles/day Oldest Listed BridgeLrd 860th ST over Lower Pine Creek — built in 1913 All County BridgesBrowse every bridge record in Dunn County.

Top Bridges to Watch in Dunn County

Bridge	Reason	Condition	Daily Traffic	Year Built
Cth Bb over Tainter Lake	Poor condition + traffic exposure	Poor	2,234	1935
Lrd 860th ST over Lower Pine Creek	Poor condition + traffic exposure	Poor	109	1913
IH 94 over E Br Wilson Creek	Poor condition + traffic exposure	Poor	35,500	1959
Ush 12 over Wilson Creek	Poor condition + traffic exposure	Poor	2,900	1934
Sth 85 over Br Chippewa River	Poor condition + traffic exposure	Poor	2,800	1992
Cth D over Red Cedar River	Poor condition + traffic exposure	Poor	1,503	1975
Cth V over Sand Creek	Poor condition + traffic exposure	Poor	702	1934
Cth V over Flayton Creek	Poor condition + traffic exposure	Poor	400	1958
Cth N over Br Red Cedar River	Poor condition + traffic exposure	Poor	215	1934
Cth N over N Br Gilbert Creek	Poor condition + traffic exposure	Poor	215	1944

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.