Addison County Bridge Report Card

Addison County scores 68 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D68 / 100

Local infrastructure snapshot

Addison County, Vermont

Addison County has 143 bridges in the National Bridge Inventory, with 3 rated poor and 13 rated scour-critical. Its poor-condition share of 2.1% is at or below the 4.0% statewide average. Poor-condition bridges carry about 10,940 daily vehicle crossings.

143Total Bridges

3Poor (2.1%)

74Fair (51.7%)

13Scour-Critical

Quote-Ready Local Facts

2.1%of county bridges are in poor condition, compared with 4.0% statewide and 6.7% nationally.

10,940daily vehicle crossings are on poor-condition bridges in the county.

13bridges are rated scour-critical, or 9.1% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Addison County a Bridge Condition Exposure Score of 68/100 (D). The county has 143 bridges in the National Bridge Inventory, including 3 in poor condition and 13 rated scour-critical. Poor-condition bridges carry about 10,940 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	2.1%	4.2
Poor-condition traffic exposure	25	6.0% of measured traffic	4.5
Scour-critical bridge share	20	9.1%	18.2
Average age vs national baseline	10	61 years vs 48 nationally	5.2
Traffic-data completeness	5	182,778 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	2.1%
State Poor-Condition Share	4.0%
National Poor-Condition Share	6.7%
County Scour-Critical Share	9.1%
Average Bridge Age	61 years
Poor-Condition Traffic Exposure	10,940 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeVt 0022a Alt over Otter Creek — 10,700 vehicles/day Oldest Listed BridgeC3010 over Muddy Branch — built in 1824 All County BridgesBrowse every bridge record in Addison County.

Top Bridges to Watch in Addison County

Bridge	Reason	Condition	Daily Traffic	Year Built
Vt 0022a Alt over Otter Creek	Poor condition + traffic exposure	Poor	10,700	1934
C3006 over New Haven River	Poor condition + traffic exposure	Poor	200	1919
C3039 over Lewis Creek	Poor condition + traffic exposure	Poor	40	1938
US 00007 Ml over Little Otter Creek	Scour-critical foundation rating	Fair	12,700	1959
US 00007 Ml over Middlebury River	Scour-critical foundation rating	Fair	8,500	1964
US 00007 Ml over Leicester River	Scour-critical foundation rating	Fair	5,900	1943
Tr 03 Fas 175 over Sucker Brook	Scour-critical foundation rating	Fair	1,700	1945
C2005 over New Haven River	Scour-critical foundation rating	Fair	200	1927
C3011 over Middlebury River	Scour-critical foundation rating	Fair	200	1936
C3034 over Little Otter Creek	Scour-critical foundation rating	Fair	200	1967

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.