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CR 550 S over I-65 Sb/nb

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

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

CR 550 S over I-65 Sb/nb in Boone 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 9 (excellent condition) on the 0-9 scale.
It was built in 2022, making it 3 years old at the 2025 inventory.
It carries about 716 vehicles a day (traffic count year 2016).
Its listed owner is the state highway agency.
It is one of 118 of the 292 inventoried bridges in Boone County rated good (40.4%); 12 (4.1%) 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 prestressed concrete tee beam
Length	about 207 ft
Location	1.95 S SR 267
NBI structure number	080830
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-65 over Prairie Creek	1948	73,132	Fair
CR 100 Ehall-baker over I-65 Sb/nb	1958	73,132	Fair
I-65 over Prairie Creek	2010	73,132	Good
I-465 WB over Zionsville Road	1967	57,399	Fair
I-65 NB over Prairie Creek Trail	2014	57,066	Fair
I-65 SB over Prairie Creek Trail	2014	57,066	Fair