Pierce County Bridge Report Card
Pierce County scores 84 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Pierce County, Wisconsin
Pierce County has 250 bridges in the National Bridge Inventory, with 10 rated poor and 9 rated scour-critical. Its poor-condition share of 4.0% is at or below the 6.7% statewide average. Poor-condition bridges carry about 4,229 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Pierce County a Bridge Condition Exposure Score of 84/100 (B). The county has 250 bridges in the National Bridge Inventory, including 10 in poor condition and 9 rated scour-critical. Poor-condition bridges carry about 4,229 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 4.0% | 8.0 |
| Poor-condition traffic exposure | 25 | 1.3% of measured traffic | 1.0 |
| Scour-critical bridge share | 20 | 3.6% | 7.2 |
| Average age vs national baseline | 10 | 41 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 323,052 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 | 4.0% |
| State Poor-Condition Share | 6.7% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 3.6% |
| Average Bridge Age | 41 years |
| Poor-Condition Traffic Exposure | 4,229 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Pierce County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Lrd 770th AVE over Trimbelle River | Poor condition + traffic exposure | Poor | 125 | 1979 |
| Lrd 1005th ST over Wind River | Poor condition + traffic exposure | Poor | 87 | 1925 |
| Lrd Glade AVE over Br Burghardt Creek | Poor condition + traffic exposure | Poor | 40 | 1934 |
| Access Road over Eau Galle River | Poor condition + traffic exposure | Poor | 25 | 1950 |
| Cth Vv over Cth K | Poor condition + traffic exposure | Poor | 2,000 | 1931 |
| Cth O over Br S Fk Kinnickinnic R | Poor condition + traffic exposure | Poor | 957 | 1986 |
| Sth 72 over Plum Creek | Poor condition + traffic exposure | Poor | 730 | 1956 |
| Cth A over Crystal Springs Creek | Poor condition + traffic exposure | Poor | 225 | 1930 |
| Lrd 430th AVE (dea over Isabelle Creek | Poor condition + traffic exposure | Poor | 25 | 1920 |
| Lrd 570th Street ( over Dry Run | Poor condition + traffic exposure | Poor | 15 | 1945 |
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.