Iowa County Bridge Report Card

Iowa County scores 81 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B81 / 100

Local infrastructure snapshot

Iowa County, Wisconsin

Iowa County has 209 bridges in the National Bridge Inventory, with 11 rated poor and 8 rated scour-critical. Its poor-condition share of 5.3% is at or below the 6.7% statewide average. Poor-condition bridges carry about 3,127 daily vehicle crossings.

209Total Bridges

11Poor (5.3%)

58Fair (27.8%)

8Scour-Critical

Quote-Ready Local Facts

5.3%of county bridges are in poor condition, compared with 6.7% statewide and 6.7% nationally.

3,127daily vehicle crossings are on poor-condition bridges in the county.

8bridges are rated scour-critical, or 3.8% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Iowa County a Bridge Condition Exposure Score of 81/100 (B). The county has 209 bridges in the National Bridge Inventory, including 11 in poor condition and 8 rated scour-critical. Poor-condition bridges carry about 3,127 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	5.3%	10.5
Poor-condition traffic exposure	25	1.2% of measured traffic	0.9
Scour-critical bridge share	20	3.8%	7.7
Average age vs national baseline	10	36 years vs 48 nationally	0.0
Traffic-data completeness	5	253,273 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	5.3%
State Poor-Condition Share	6.7%
National Poor-Condition Share	6.7%
County Scour-Critical Share	3.8%
Average Bridge Age	36 years
Poor-Condition Traffic Exposure	3,127 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeCth A over Pecatonica River — 650 vehicles/day Oldest Listed BridgeSth 130 over Otter Creek — built in 1923 All County BridgesBrowse every bridge record in Iowa County.

Top Bridges to Watch in Iowa County

Bridge	Reason	Condition	Daily Traffic	Year Built
Cth Hh over White Hollow Creek	Poor condition + traffic exposure	Poor	400	1948
Lrd Jones Branch R over Pecatonica River	Poor condition + traffic exposure	Poor	145	1929
Lrd Lakeview RD over Snead Creek	Poor condition + traffic exposure	Poor	52	1945
Lrd Frame RD (dead over W Br Blue Mounds Creek	Poor condition + traffic exposure	Poor	40	1930
Cth A over Pecatonica River	Poor condition + traffic exposure	Poor	650	1939
Cth E over E Pecatonica River	Poor condition + traffic exposure	Poor	350	1940
Cth T over Jones Creek	Poor condition + traffic exposure	Poor	340	1974
Cth G over Pecatonica River	Poor condition + traffic exposure	Poor	327	1973
Cth Kk over W Br Blue Mounds Creek	Poor condition + traffic exposure	Poor	315	1972
Cth H over Mill Creek	Poor condition + traffic exposure	Poor	300	1968

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.