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IL3NB->255WB Rmp E over 255SB->IL3SB Ramp B

Monroe County, Illinois · rated Fair in the 2025 National Bridge Inventory

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

IL3NB->255WB Rmp E over 255SB->IL3SB Ramp B in Monroe County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1982, making it 43 years old at the 2025 inventory.
It carries about 36,900 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 42 of the 132 inventoried bridges in Monroe County rated fair (31.8%); 11 (8.3%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 152 ft
Location	North of Columbia
NBI structure number	067002900000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Il 3 SB over Palmer Rd/Palmer Crk	1991	36,900	Fair
Ill 3 NB over Palmer Rd/Palmer Crk	1984	30,200	Fair
Fai 255 EB over Mississippi River	1986	25,850	Fair
Fai 255WB over Mississippi River	1984	25,850	Fair
Fai 255 Nb/eb over UPRR	1984	25,850	Poor
IL3NB-255WB Ramp A over I 255 NB - Ramp D	1982	25,850	Fair