County 066 County Bridge Report Card

County 066 County scores 62 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D62 / 100

Local infrastructure snapshot

County 066 County, Alaska

County 066 County has 53 bridges in the National Bridge Inventory, with 3 rated poor and 7 rated scour-critical. Its poor-condition share of 5.7% is at or below the 7.5% statewide average. Poor-condition bridges carry about 1,416 daily vehicle crossings.

53Total Bridges

3Poor (5.7%)

25Fair (47.2%)

7Scour-Critical

Quote-Ready Local Facts

5.7%of county bridges are in poor condition, compared with 7.5% statewide and 6.7% nationally.

1,416daily vehicle crossings are on poor-condition bridges in the county.

7bridges are rated scour-critical, or 13.2% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives County 066 County a Bridge Condition Exposure Score of 62/100 (D). The county has 53 bridges in the National Bridge Inventory, including 3 in poor condition and 7 rated scour-critical. Poor-condition bridges carry about 1,416 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	5.7%	11.3
Poor-condition traffic exposure	25	8.5% of measured traffic	6.4
Scour-critical bridge share	20	13.2%	20.0
Average age vs national baseline	10	41 years vs 48 nationally	0.0
Traffic-data completeness	5	16,586 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	5.7%
State Poor-Condition Share	7.5%
National Poor-Condition Share	6.7%
County Scour-Critical Share	13.2%
Average Bridge Age	41 years
Poor-Condition Traffic Exposure	1,416 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeRichardson Highway over Gulkana River — 880 vehicles/day Oldest Listed BridgeEdgerton/mccarthy over Kuskulana River — built in 1910 All County BridgesBrowse every bridge record in County 066 County.

Top Bridges to Watch in County 066 County

Bridge	Reason	Condition	Daily Traffic	Year Built
Richardson Highway over Gulkana River	Poor condition + traffic exposure	Poor	880	1974
91 Mile Loop over Little Tok River	Poor condition + traffic exposure	Poor	336	1979
Richardson Highway over Gunn Creek	Poor condition + traffic exposure	Poor	200	1954
Glenn HWY Spur over Little Nelchina River	Scour-critical foundation rating	Fair	765	1952
Irr:old Align Rich over Klutina River	Scour-critical foundation rating	Fair	480	1957
Richardson Highway over Tiekel River Upper Xing	Scour-critical foundation rating	Good	440	1978
Tok Cutoff over Indian River	Scour-critical foundation rating	Good	260	1984
Edgerton/mccarthy over Gilahina River	Scour-critical foundation rating	Fair	70	1991
91 Mile Loop over Little Tok Overflow	Scour-critical foundation rating	Good	30	1954
91 Mile Loop over Trail Creek	Scour-critical foundation rating	Fair	15	1951

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.