Fremont County Bridge Report Card

Fremont County scores 81 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B81 / 100

Local infrastructure snapshot

Fremont County, Idaho

Fremont County has 138 bridges in the National Bridge Inventory, with 8 rated poor and 5 rated scour-critical. Its poor-condition share of 5.8% is above the 5.4% statewide average. Poor-condition bridges carry about 1,290 daily vehicle crossings.

138Total Bridges

8Poor (5.8%)

85Fair (61.6%)

5Scour-Critical

Quote-Ready Local Facts

5.8%of county bridges are in poor condition, compared with 5.4% statewide and 6.7% nationally.

1,290daily vehicle crossings are on poor-condition bridges in the county.

5bridges are rated scour-critical, or 3.6% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Fremont County a Bridge Condition Exposure Score of 81/100 (B). The county has 138 bridges in the National Bridge Inventory, including 8 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 1,290 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	5.8%	11.6
Poor-condition traffic exposure	25	0.6% of measured traffic	0.5
Scour-critical bridge share	20	3.6%	7.2
Average age vs national baseline	10	42 years vs 48 nationally	0.0
Traffic-data completeness	5	213,866 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	5.8%
State Poor-Condition Share	5.4%
National Poor-Condition Share	6.7%
County Scour-Critical Share	3.6%
Average Bridge Age	42 years
Poor-Condition Traffic Exposure	1,290 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeStc 6774;teton HWY over S.fk.teton River — 1,100 vehicles/day Oldest Listed BridgeFun Farm Road over Henrys Fk Snake River — built in 1925 All County BridgesBrowse every bridge record in Fremont County.

Top Bridges to Watch in Fremont County

Bridge	Reason	Condition	Daily Traffic	Year Built
Stc 6774;teton HWY over S.fk.teton River	Poor condition + traffic exposure	Poor	1,100	1977
N 1600 E over ST Anthony Canal	Poor condition + traffic exposure	Poor	70	1971
1300 N over Henrys Fk.snake R;fritz	Poor condition + traffic exposure	Poor	50	1967
Fun Farm Road over Henrys Fk Snake River	Poor condition + traffic exposure	Poor	30	1925
US 20 Frontage RD over N. Branch Fall River Cnl	Poor condition + traffic exposure	Poor	10	1932
US 20 Frontage RD over Fall River Overflow	Poor condition + traffic exposure	Poor	10	1932
N 2700 E over Crosscut Canal	Poor condition + traffic exposure	Poor	10	1937
N 4075 E over Marysville Canal	Poor condition + traffic exposure	Poor	10	1976
N 2750 E over Teton River	Scour-critical foundation rating	Good	300	1976
4525 E over Fall River	Scour-critical foundation rating	Fair	180	1983

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.