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15TH Avenue over I-90 Eb/wb

Lake County, Indiana · rated Good in the 2025 National Bridge Inventory

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

15TH Avenue over I-90 Eb/wb in Lake County, Indiana, 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 2004, making it 21 years old at the 2025 inventory.
It carries about 7,044 vehicles a day (traffic count year 2014).
It is one of 249 of the 501 inventoried bridges in Lake County rated good (49.7%); 36 (7.2%) 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 234 ft
Location	00.83 E US 12
NBI structure number	046600
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-80 WB Ramp to SR over SR 912 Eb/wb Ramps	2001	185,778	Fair
I-80 Ebwb 2 Ramps over Erie-lackawanna Trail	2005	175,670	Fair
I-80 I-94 EB over US 41 N/sr 152 W Rmp 2I	2005	175,670	Fair
I-80i-94 EB over Northcote Ave	2005	172,512	Good
I-80i-94 EB over Hohman Avenue	2007	150,742	Good
I-80i-94 EB over Lt Calumet Riv Monon Tr	2007	150,742	Good