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Perkins Rd. over County Ditch No. 1

Whiteside County, Illinois · rated Poor in the 2025 National Bridge Inventory

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

Perkins Rd. over County Ditch No. 1 in Whiteside County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1966, making it 59 years old at the 2025 inventory.
It carries about 75 vehicles a day (traffic count year 2022).
Its listed owner is a town or township highway agency.
It is one of 23 of the 278 inventoried bridges in Whiteside County rated poor (8.3%); 23 (8.3%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 54 ft
Location	3 Mi S.E. Prophetsto
NBI structure number	098540500000000
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Il 40 over Rock River	2012	19,800	Good
I-88 over Ditch	1975	13,100	Good
Fai 88 over Stream	1975	12,600	Fair
I-88 over Ditch	1975	12,500	Good
I-88 over Ditch	1975	12,500	Good
Il 40 Locust St over Stream	1987	11,100	Good