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Shoestring Road over King Hill Main Canal

Twin Falls County, Idaho · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Shoestring Road over King Hill Main Canal in Twin Falls County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1977, making it 48 years old at the 2025 inventory.
It carries about 10 vehicles a day (traffic count year 2023).
It is one of 107 of the 126 inventoried bridges in Twin Falls County rated fair (84.9%); 5 (4.0%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 53 ft
Location	1.0 S. 1.5 W. Bliss
NBI structure number	000000000025370
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.

Bridge	Built	Vehicles/day	Condition
US 93 over Perrine Coulee;bike Path	2006	33,000	Fair
US 93 over Snake River; Perrine Br.	1976	31,500	Fair
SH 74 over Rock Creek	1993	19,000	Good
US 30 over Perrine Coulee Canal	1960	15,500	Fair
US 93 over Rock Creek	2011	15,000	Fair
STC7232;BLUE Lakes over Rock Creek	1959	11,500	Poor