Worth County Bridge Report Card

Worth County scores 65 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D65 / 100

Local infrastructure snapshot

Worth County, Iowa

Worth County has 116 bridges in the National Bridge Inventory, with 17 rated poor and 1 rated scour-critical. Its poor-condition share of 14.7% is at or below the 18.6% statewide average. Poor-condition bridges carry about 3,598 daily vehicle crossings.

116Total Bridges

17Poor (14.7%)

55Fair (47.4%)

1Scour-Critical

Quote-Ready Local Facts

14.7%of county bridges are in poor condition, compared with 18.6% statewide and 6.7% nationally.

3,598daily vehicle crossings are on poor-condition bridges in the county.

1bridges are rated scour-critical, or 0.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Worth County a Bridge Condition Exposure Score of 65/100 (D). The county has 116 bridges in the National Bridge Inventory, including 17 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 3,598 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	14.7%	29.3
Poor-condition traffic exposure	25	2.6% of measured traffic	2.0
Scour-critical bridge share	20	0.9%	1.7
Average age vs national baseline	10	53 years vs 48 nationally	2.1
Traffic-data completeness	5	138,245 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	14.7%
State Poor-Condition Share	18.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.9%
Average Bridge Age	53 years
Poor-Condition Traffic Exposure	3,598 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeCentral AVE N over Shellrock River — 1,868 vehicles/day Oldest Listed Bridge355th over Stream — built in 1900 All County BridgesBrowse every bridge record in Worth County.

Top Bridges to Watch in Worth County

Bridge	Reason	Condition	Daily Traffic	Year Built
Central AVE N over Shellrock River	Poor condition + traffic exposure	Poor	1,868	1950
390th over Shellrock River	Poor condition + traffic exposure	Poor	363	1958
Dogwood over Stream	Poor condition + traffic exposure	Poor	236	1959
Dogwood over Drainage Ditch	Poor condition + traffic exposure	Poor	236	1972
Mallard AVE over Drainage Ditch	Poor condition + traffic exposure	Poor	216	1973
Balsam over Beaver Creek	Poor condition + traffic exposure	Poor	216	1977
Killdeer over Elk Creek	Poor condition + traffic exposure	Poor	137	2001
Vine over Deer Creek	Poor condition + traffic exposure	Poor	59	1977
Olive over Drainage Ditch	Poor condition + traffic exposure	Poor	51	1974
390th over Stream	Poor condition + traffic exposure	Poor	41	1959

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.