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State Route 99 NB over Howsley Road

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

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

State Route 99 NB over Howsley Road in Sutter 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 1990, making it 35 years old at the 2025 inventory.
It carries about 18,750 vehicles a day (traffic count year 2019).
Its listed owner is the state highway agency.
It is one of 41 of the 121 inventoried bridges in Sutter County rated good (33.9%); 16 (13.2%) 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	Continuous prestressed concrete slab
Length	about 139 ft
Location	03-sut-099-5.81
NBI structure number	18 0045R
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
5TH Street over Feather River	2019	67,000	Good
5TH Street over 2ND Street Sutter Street	2019	67,000	Good
State Route 20 over Feather River K St UP RR	1947	48,000	Fair
State Route 20 over Abandoned UP RR Spur	1946	41,750	Good
State Route 20 over Sutter Street	1946	41,750	Good
State Route 99 SB over Cross Canal	1949	18,750	Fair