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ROUTE 13 wb over Big Muddy River

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

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

ROUTE 13 wb over Big Muddy River in Jackson 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 8 (very good condition) on the 0-9 scale.
It was built in 2015, making it 10 years old at the 2025 inventory.
It carries about 16,600 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 150 of the 228 inventoried bridges in Jackson County rated good (65.8%); 16 (7.0%) 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 steel stringer or multi-beam girder
Length	about 465 ft
Location	Murphysboro
NBI structure number	039007600000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Il 13 WB over Crab Orchard Creek	1995	25,800	Good
Ill 13 WB over Crab Orchard CR Ovfl	1995	25,800	Good
Il 13 EB over Crab Orchard Creek	2021	25,800	Good
Il 13 EB over Crab Orchard Creek	2021	25,800	Good
Ill Rte 13 over Trib-piles Fork Crk.	1948	25,500	Fair
Il Rte 13 over Little Crab Orchard	2007	21,600	Fair