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Tr 312 over LEF7 Fork Apple Crk

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

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

Tr 312 over LEF7 Fork Apple Crk in Morgan 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 1984, making it 41 years old at the 2025 inventory.
It carries about 50 vehicles a day (traffic count year 2024).
Its listed owner is a town or township highway agency.
It is one of 113 of the 234 inventoried bridges in Morgan County rated good (48.3%); 17 (7.3%) 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 62 ft
Location	3.7 M Ssw Franklin
NBI structure number	069315400000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Bl72/il104/morton over Town Brook	1952	16,300	Fair
Fai 72 over N Fk Mauvaise Terre	1976	14,500	Fair
Fai 72 over Mauvaise Terre CR Br	1974	14,500	Good
Bus I72/IL104/MORT over Mauvaise Terre Creek	1957	10,400	Fair
Il 267/US 67/BL 67 over I-72/US 36	1975	9,100	Fair
Il 267 over Trib Mauvaise Terre	1989	9,100	Good