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Ch 18 over Mill CR

Rock Island County, Illinois · rated Good in the 2025 National Bridge Inventory

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

Ch 18 over Mill CR in Rock Island County, Illinois, 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 1986, making it 39 years old at the 2025 inventory.
It carries about 575 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 125 of the 272 inventoried bridges in Rock Island County rated good (46.0%); 13 (4.8%) 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 multiple box beam
Length	about 67 ft
Location	7 Mi SW Coal Valle
NBI structure number	081310000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 74 EB over Mississippi River	2021	39,050	Good
I 74 WB over Mississippi River	2020	39,050	Good
Il 5 WB (j Deere R over Fai 74	1970	38,900	Poor
Il 5 EB (j Deere R over Fai 74	1970	38,900	Fair
Fai 80 over Miss R Ill 84 & RR	1967	32,200	Fair
IL5 over Creek	2012	32,100	Good