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Prairie Center Roa over Br of Rock Creek

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

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

Prairie Center Roa over Br of Rock Creek 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 1981, making it 44 years old at the 2025 inventory.
It carries about 1,000 vehicles a day (traffic count year 2021).
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 34 ft
Location	0.4 M W of Morrison
NBI structure number	098575800000000
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