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Hilderbrand Dr over Saint Helena Creek

Lake County, California · rated Good in the 2025 National Bridge Inventory

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

Hilderbrand Dr over Saint Helena Creek in Lake County, California, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2014, making it 11 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2005).
Its listed owner is the county highway agency.
It is one of 40 of the 131 inventoried bridges in Lake County rated good (30.5%); 12 (9.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 100 ft
Location	0.1 Mi E of SR 29
NBI structure number	14C0122
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
State Route 53 over Seigler Creek	1952	16,500	Fair
State Route 29 over Kelsey Creek	1966	12,100	Good
State Route 29 over Adobe Creek	1966	12,100	Good
State Route 29 over Hill Creek	1966	12,100	Good
State Route 29 over Manning Creek	1966	12,100	Good
State Route 29 over Putah Creek	2003	10,900	Good