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SR 23 over Koontz Lake

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

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

SR 23 over Koontz Lake in Starke 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 2012, making it 13 years old at the 2025 inventory.
It carries about 1,798 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 47 of the 87 inventoried bridges in Starke County rated good (54.0%); 5 (5.7%) 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 stringer or multi-beam girder
Length	about 142 ft
Location	04.00 N US 30
NBI structure number	080034
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 30 WB over Robbins Ditch	1958	11,406	Fair
US 35 over Yellow River	1929	8,432	Good
US 35 over Craigmile Ditch	1924	7,176	Fair
US 30 EB over Robbins Ditch	1958	6,993	Fair
US 30 WB over Jain Ditch	1963	6,793	Good
US 30 EB over Shearing Ditch	1958	6,743	Good