Lake County Bridge Report Card

Lake County scores 52 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

F52 / 100

Local infrastructure snapshot

Lake County, Colorado

Lake County has 17 bridges in the National Bridge Inventory, with 2 rated poor and 2 rated scour-critical. Its poor-condition share of 11.8% is above the 4.6% statewide average. Poor-condition bridges carry about 1,720 daily vehicle crossings.

17Total Bridges

2Poor (11.8%)

6Fair (35.3%)

2Scour-Critical

Quote-Ready Local Facts

11.8%of county bridges are in poor condition, compared with 4.6% statewide and 6.7% nationally.

1,720daily vehicle crossings are on poor-condition bridges in the county.

2bridges are rated scour-critical, or 11.8% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Lake County a Bridge Condition Exposure Score of 52/100 (F). The county has 17 bridges in the National Bridge Inventory, including 2 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 1,720 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	11.8%	23.5
Poor-condition traffic exposure	25	5.4% of measured traffic	4.1
Scour-critical bridge share	20	11.8%	20.0
Average age vs national baseline	10	41 years vs 48 nationally	0.0
Traffic-data completeness	5	31,613 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	11.8%
State Poor-Condition Share	4.6%
National Poor-Condition Share	6.7%
County Scour-Critical Share	11.8%
Average Bridge Age	41 years
Poor-Condition Traffic Exposure	1,720 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSH 300 Ml over California Gulch — 1,600 vehicles/day Oldest Listed BridgeUS 24 Ml over Draw — built in 1937 All County BridgesBrowse every bridge record in Lake County.

Top Bridges to Watch in Lake County

Bridge	Reason	Condition	Daily Traffic	Year Built
SH 300 Ml over Lake Fork Creek	Poor condition + traffic exposure	Poor	120	1954
SH 300 Ml over California Gulch	Poor condition + traffic exposure	Poor	1,600	1939
US 24 Ml over East Fork Arkansas River	Scour-critical foundation rating	Good	2,700	2008
US 24 Ml over California Gulch	High traffic	Good	4,600	2013
US 24 Ml over Lake Creek	High traffic	Good	4,200	1993
US 24 Ml over Up Rr	High traffic	Good	4,200	1995
US 24 Ml over Arkansas River	High traffic	Fair	4,200	1995
US 24 Ml over Draw	High traffic	Fair	4,000	1937
SH 82 Ml over Lake Creek	High traffic	Fair	2,200	1948
SH 300 Ml over Arkansas River	High traffic	Fair	1,600	1939

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.